diff --git a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
index 4887a78..218eb04 100644
--- a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
+++ b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
@@ -2621,8 +2621,7 @@
             // the network with the TEST transport. Also wait for validation here, in case there
             // is a bug that's only visible when the network is validated.
             setWifiMeteredStatusAndWait(ssid, true /* isMetered */, true /* waitForValidation */);
-            defaultCallback.expectCallback(CallbackEntry.LOST, wifiNetwork,
-                    NETWORK_CALLBACK_TIMEOUT_MS);
+            defaultCallback.expect(CallbackEntry.LOST, wifiNetwork, NETWORK_CALLBACK_TIMEOUT_MS);
             waitForAvailable(defaultCallback, tnt.getNetwork());
             // Depending on if this device has cellular connectivity or not, multiple available
             // callbacks may be received. Eventually, metered Wi-Fi should be the final available
@@ -2631,10 +2630,9 @@
             waitForAvailable(systemDefaultCallback, TRANSPORT_WIFI);
         }, /* cleanup */ () -> {
             // Validate that removing the test network will fallback to the default network.
-            runWithShellPermissionIdentity(tnt::teardown);
-            defaultCallback.expectCallback(CallbackEntry.LOST, tnt.getNetwork(),
-                    NETWORK_CALLBACK_TIMEOUT_MS);
-            waitForAvailable(defaultCallback);
+                runWithShellPermissionIdentity(tnt::teardown);
+                defaultCallback.expect(CallbackEntry.LOST, tnt, NETWORK_CALLBACK_TIMEOUT_MS);
+                waitForAvailable(defaultCallback);
             }, /* cleanup */ () -> {
                 setWifiMeteredStatusAndWait(ssid, oldMeteredValue, false /* waitForValidation */);
             }, /* cleanup */ () -> {
@@ -2669,8 +2667,7 @@
             waitForAvailable(systemDefaultCallback, wifiNetwork);
         }, /* cleanup */ () -> {
                 runWithShellPermissionIdentity(tnt::teardown);
-                defaultCallback.expectCallback(CallbackEntry.LOST, tnt.getNetwork(),
-                        NETWORK_CALLBACK_TIMEOUT_MS);
+                defaultCallback.expect(CallbackEntry.LOST, tnt, NETWORK_CALLBACK_TIMEOUT_MS);
 
                 // This network preference should only ever use the test network therefore available
                 // should not trigger when the test network goes down (e.g. switch to cellular).
diff --git a/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt b/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
index c2ab6c0..7e91478 100644
--- a/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
+++ b/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
@@ -74,7 +74,6 @@
 import com.android.testutils.RouterAdvertisementResponder
 import com.android.testutils.TapPacketReader
 import com.android.testutils.TestableNetworkCallback
-import com.android.testutils.anyNetwork
 import com.android.testutils.assertThrows
 import com.android.testutils.runAsShell
 import com.android.testutils.waitForIdle
@@ -255,7 +254,7 @@
         }
 
         fun <T : CallbackEntry> expectCallback(expected: T): T {
-            val event = pollForNextCallback()
+            val event = pollOrThrow()
             assertEquals(expected, event)
             return event as T
         }
@@ -272,7 +271,7 @@
                 InterfaceStateChanged(iface, state, role,
                         if (state != STATE_ABSENT) DEFAULT_IP_CONFIGURATION else null)
 
-        fun pollForNextCallback(): CallbackEntry {
+        fun pollOrThrow(): CallbackEntry {
             return events.poll(TIMEOUT_MS) ?: fail("Did not receive callback after ${TIMEOUT_MS}ms")
         }
 
@@ -525,13 +524,6 @@
         NetworkRequest.Builder(NetworkRequest(ETH_REQUEST))
             .setNetworkSpecifier(EthernetNetworkSpecifier(ifaceName)).build()
 
-    // It can take multiple seconds for the network to become available.
-    private fun TestableNetworkCallback.expectAvailable() =
-            expectCallback<Available>().network
-
-    private fun TestableNetworkCallback.expectLost(n: Network = anyNetwork()) =
-            expectCallback<Lost>(n)
-
     // b/233534110: eventuallyExpect<Lost>() does not advance ReadHead, use
     // eventuallyExpect(Lost::class) instead.
     private fun TestableNetworkCallback.eventuallyExpectLost(n: Network? = null) =
@@ -543,12 +535,10 @@
         }
 
     private fun TestableNetworkCallback.assertNeverAvailable(n: Network? = null) =
-        assertNoCallbackThat() { it is Available && (n?.equals(it.network) ?: true) }
+        assertNoCallbackThat { it is Available && (n?.equals(it.network) ?: true) }
 
     private fun TestableNetworkCallback.expectCapabilitiesWithInterfaceName(name: String) =
-        expectCapabilitiesThat(anyNetwork()) {
-            it.networkSpecifier == EthernetNetworkSpecifier(name)
-        }
+        expect<CapabilitiesChanged> { it.caps.networkSpecifier == EthernetNetworkSpecifier(name) }
 
     private fun TestableNetworkCallback.eventuallyExpectCapabilities(nc: NetworkCapabilities) {
         // b/233534110: eventuallyExpect<CapabilitiesChanged>() does not advance ReadHead.
@@ -702,7 +692,7 @@
         listenerCb.assertNeverAvailable()
 
         val cb = requestNetwork(ETH_REQUEST)
-        val network = cb.expectAvailable()
+        val network = cb.expect<Available>().network
 
         cb.assertNeverLost()
         releaseRequest(cb)
@@ -719,7 +709,7 @@
         // createInterface and the interface actually being properly registered with the ethernet
         // module, so it is extremely unlikely that the CS handler thread has not run until then.
         val iface = createInterface()
-        val network = cb.expectAvailable()
+        val network = cb.expect<Available>().network
 
         // remove interface before network request has been removed
         cb.assertNeverLost()
@@ -734,7 +724,7 @@
 
         val cb = requestNetwork(ETH_REQUEST.copyWithEthernetSpecifier(iface2.name))
 
-        val network = cb.expectAvailable()
+        cb.expect<Available>()
         cb.expectCapabilitiesWithInterfaceName(iface2.name)
 
         removeInterface(iface1)
@@ -748,7 +738,7 @@
         val iface1 = createInterface()
 
         val cb = requestNetwork(ETH_REQUEST)
-        val network = cb.expectAvailable()
+        val network = cb.expect<Available>().network
 
         // create another network and verify the request sticks to the current network
         val iface2 = createInterface()
@@ -757,7 +747,7 @@
         // remove iface1 and verify the request brings up iface2
         removeInterface(iface1)
         cb.eventuallyExpectLost(network)
-        val network2 = cb.expectAvailable()
+        cb.expect<Available>()
     }
 
     @Test
@@ -769,12 +759,12 @@
         val cb2 = requestNetwork(ETH_REQUEST.copyWithEthernetSpecifier(iface2.name))
         val cb3 = requestNetwork(ETH_REQUEST)
 
-        cb1.expectAvailable()
+        cb1.expect<Available>()
         cb1.expectCapabilitiesWithInterfaceName(iface1.name)
-        cb2.expectAvailable()
+        cb2.expect<Available>()
         cb2.expectCapabilitiesWithInterfaceName(iface2.name)
         // this request can be matched by either network.
-        cb3.expectAvailable()
+        cb3.expect<Available>()
 
         cb1.assertNeverLost()
         cb2.assertNeverLost()
@@ -789,10 +779,10 @@
         val cb1 = requestNetwork(ETH_REQUEST)
 
         val iface = createInterface()
-        val network = cb1.expectAvailable()
+        val network = cb1.expect<Available>().network
 
         val cb2 = requestNetwork(ETH_REQUEST)
-        cb2.expectAvailable()
+        cb2.expect<Available>()
 
         // release the first request; this used to trigger b/197548738
         releaseRequest(cb1)
@@ -815,7 +805,7 @@
         // cb.assertNeverAvailable()
 
         iface.setCarrierEnabled(true)
-        cb.expectAvailable()
+        cb.expect<Available>()
 
         iface.setCarrierEnabled(false)
         cb.eventuallyExpectLost()
@@ -860,14 +850,14 @@
     fun testEnableDisableInterface_withActiveRequest() {
         val iface = createInterface()
         val cb = requestNetwork(ETH_REQUEST)
-        cb.expectAvailable()
+        cb.expect<Available>()
         cb.assertNeverLost()
 
         disableInterface(iface).expectResult(iface.name)
         cb.eventuallyExpectLost()
 
         enableInterface(iface).expectResult(iface.name)
-        cb.expectAvailable()
+        cb.expect<Available>()
     }
 
     @Test
@@ -894,7 +884,7 @@
     fun testUpdateConfiguration_forBothIpConfigAndCapabilities() {
         val iface = createInterface()
         val cb = requestNetwork(ETH_REQUEST.copyWithEthernetSpecifier(iface.name))
-        val network = cb.expectAvailable()
+        cb.expect<Available>()
 
         updateConfiguration(iface, STATIC_IP_CONFIGURATION, TEST_CAPS).expectResult(iface.name)
         cb.eventuallyExpectCapabilities(TEST_CAPS)
@@ -905,7 +895,7 @@
     fun testUpdateConfiguration_forOnlyIpConfig() {
         val iface = createInterface()
         val cb = requestNetwork(ETH_REQUEST.copyWithEthernetSpecifier(iface.name))
-        val network = cb.expectAvailable()
+        cb.expect<Available>()
 
         updateConfiguration(iface, STATIC_IP_CONFIGURATION).expectResult(iface.name)
         cb.eventuallyExpectLpForStaticConfig(STATIC_IP_CONFIGURATION.staticIpConfiguration)
@@ -915,7 +905,7 @@
     fun testUpdateConfiguration_forOnlyCapabilities() {
         val iface = createInterface()
         val cb = requestNetwork(ETH_REQUEST.copyWithEthernetSpecifier(iface.name))
-        val network = cb.expectAvailable()
+        cb.expect<Available>()
 
         updateConfiguration(iface, capabilities = TEST_CAPS).expectResult(iface.name)
         cb.eventuallyExpectCapabilities(TEST_CAPS)
@@ -932,7 +922,7 @@
 
         // Request the restricted network as the shell with CONNECTIVITY_USE_RESTRICTED_NETWORKS.
         val cb = runAsShell(CONNECTIVITY_USE_RESTRICTED_NETWORKS) { requestNetwork(request) }
-        val network = cb.expectAvailable()
+        val network = cb.expect<Available>().network
         cb.assertNeverLost(network)
 
         // The network is restricted therefore binding to it when available will fail.
@@ -948,8 +938,8 @@
 
         // UpdateConfiguration() currently does a restart on the ethernet interface therefore lost
         // will be expected first before available, as part of the restart.
-        cb.expectLost(network)
-        val updatedNetwork = cb.expectAvailable()
+        cb.expect<Lost>(network)
+        val updatedNetwork = cb.expect<Available>().network
         // With the test process UID allowed, binding to a restricted network should be successful.
         Socket().use { socket -> updatedNetwork.bindSocket(socket) }
 
@@ -975,7 +965,7 @@
 
         setEthernetEnabled(true)
         val cb = requestNetwork(ETH_REQUEST)
-        cb.expectAvailable()
+        cb.expect<Available>()
         cb.eventuallyExpectCapabilities(TEST_CAPS)
         cb.eventuallyExpectLpForStaticConfig(STATIC_IP_CONFIGURATION.staticIpConfiguration)
     }
@@ -986,7 +976,7 @@
         // createInterface without carrier is racy, so create it and then remove carrier.
         val iface = createInterface()
         val cb = requestNetwork(ETH_REQUEST)
-        cb.expectAvailable()
+        cb.expect<Available>()
 
         iface.setCarrierEnabled(false)
         cb.eventuallyExpectLost()
diff --git a/tests/cts/net/src/android/net/cts/Ikev2VpnTest.java b/tests/cts/net/src/android/net/cts/Ikev2VpnTest.java
index 2b1d173..ac50740 100644
--- a/tests/cts/net/src/android/net/cts/Ikev2VpnTest.java
+++ b/tests/cts/net/src/android/net/cts/Ikev2VpnTest.java
@@ -24,7 +24,6 @@
 import static com.android.compatibility.common.util.SystemUtil.runWithShellPermissionIdentity;
 import static com.android.modules.utils.build.SdkLevel.isAtLeastT;
 import static com.android.testutils.DevSdkIgnoreRuleKt.SC_V2;
-import static com.android.testutils.TestableNetworkCallbackKt.anyNetwork;
 
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
@@ -520,8 +519,7 @@
                 HexDump.hexStringToByteArray(authResp));
 
         // Verify the VPN network came up
-        final Network vpnNetwork = cb.expectCallback(CallbackEntry.AVAILABLE, anyNetwork())
-                .getNetwork();
+        final Network vpnNetwork = cb.expect(CallbackEntry.AVAILABLE).getNetwork();
 
         if (testSessionKey) {
             final VpnProfileStateShim profileState = mVmShim.getProvisionedVpnProfileState();
@@ -536,8 +534,8 @@
                 && caps.hasCapability(NET_CAPABILITY_INTERNET)
                 && !caps.hasCapability(NET_CAPABILITY_VALIDATED)
                 && Process.myUid() == caps.getOwnerUid());
-        cb.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, vpnNetwork);
-        cb.expectCallback(CallbackEntry.BLOCKED_STATUS, vpnNetwork);
+        cb.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, vpnNetwork);
+        cb.expect(CallbackEntry.BLOCKED_STATUS, vpnNetwork);
 
         // A VPN that requires validation is initially not validated, while one that doesn't
         // immediately validate automatically. Because this VPN can't actually access Internet,
diff --git a/tests/cts/net/src/android/net/cts/NetworkAgentTest.kt b/tests/cts/net/src/android/net/cts/NetworkAgentTest.kt
index 867d672..6df71c8 100644
--- a/tests/cts/net/src/android/net/cts/NetworkAgentTest.kt
+++ b/tests/cts/net/src/android/net/cts/NetworkAgentTest.kt
@@ -403,7 +403,7 @@
     fun testConnectAndUnregister() {
         val (agent, callback) = createConnectedNetworkAgent()
         unregister(agent)
-        callback.expectCallback<Lost>(agent.network!!)
+        callback.expect<Lost>(agent.network!!)
         assertFailsWith<IllegalStateException>("Must not be able to register an agent twice") {
             agent.register()
         }
@@ -454,7 +454,7 @@
             agent.sendNetworkCapabilities(nc)
             callbacks[0].expectCapabilitiesThat(agent.network!!) { it.signalStrength == 55 }
             callbacks[1].expectCapabilitiesThat(agent.network!!) { it.signalStrength == 55 }
-            callbacks[2].expectCallback<Lost>(agent.network!!)
+            callbacks[2].expect<Lost>(agent.network!!)
         }
         callbacks.forEach {
             mCM.unregisterNetworkCallback(it)
@@ -532,12 +532,12 @@
         agent.markConnected()
 
         // Make sure the UIDs have been ignored.
-        callback.expectCallback<Available>(agent.network!!)
+        callback.expect<Available>(agent.network!!)
         callback.expectCapabilitiesThat(agent.network!!) {
             it.allowedUids.isEmpty() && !it.hasCapability(NET_CAPABILITY_VALIDATED)
         }
-        callback.expectCallback<LinkPropertiesChanged>(agent.network!!)
-        callback.expectCallback<BlockedStatus>(agent.network!!)
+        callback.expect<LinkPropertiesChanged>(agent.network!!)
+        callback.expect<BlockedStatus>(agent.network!!)
         callback.expectCapabilitiesThat(agent.network!!) {
             it.allowedUids.isEmpty() && it.hasCapability(NET_CAPABILITY_VALIDATED)
         }
@@ -577,7 +577,7 @@
                 .setLegacyInt(WORSE_NETWORK_SCORE)
                 .setExiting(true)
                 .build())
-        callback.expectCallback<Available>(agent2.network!!)
+        callback.expect<Available>(agent2.network!!)
 
         // tearDown() will unregister the requests and agents
     }
@@ -661,7 +661,7 @@
         }
 
         unregister(agent)
-        callback.expectCallback<Lost>(agent.network!!)
+        callback.expect<Lost>(agent.network!!)
     }
 
     private fun unregister(agent: TestableNetworkAgent) {
@@ -834,14 +834,14 @@
         agentStronger.register()
         agentStronger.markConnected()
         commonCallback.expectAvailableCallbacks(agentStronger.network!!)
-        callbackWeaker.expectCallback<Losing>(agentWeaker.network!!)
+        callbackWeaker.expect<Losing>(agentWeaker.network!!)
         val expectedRemainingLingerDuration = lingerStart +
                 NetworkAgent.MIN_LINGER_TIMER_MS.toLong() - SystemClock.elapsedRealtime()
         // If the available callback is too late. The remaining duration will be reduced.
         assertTrue(expectedRemainingLingerDuration > 0,
                 "expected remaining linger duration is $expectedRemainingLingerDuration")
         callbackWeaker.assertNoCallback(expectedRemainingLingerDuration)
-        callbackWeaker.expectCallback<Lost>(agentWeaker.network!!)
+        callbackWeaker.expect<Lost>(agentWeaker.network!!)
     }
 
     @Test
@@ -908,7 +908,7 @@
         bestMatchingCb.assertNoCallback()
         agent1.unregister()
         agentsToCleanUp.remove(agent1)
-        bestMatchingCb.expectCallback<Lost>(agent1.network!!)
+        bestMatchingCb.expect<Lost>(agent1.network!!)
 
         // tearDown() will unregister the requests and agents
     }
@@ -1222,7 +1222,7 @@
         // testCallback will not see any events. agent2 is be torn down because it has no requests.
         val (agent2, network2) = connectNetwork()
         matchAllCallback.expectAvailableThenValidatedCallbacks(network2)
-        matchAllCallback.expectCallback<Lost>(network2)
+        matchAllCallback.expect<Lost>(network2)
         agent2.expectCallback<OnNetworkUnwanted>()
         agent2.expectCallback<OnNetworkDestroyed>()
         assertNull(mCM.getLinkProperties(network2))
@@ -1250,7 +1250,7 @@
 
         // As soon as the replacement arrives, network1 is disconnected.
         // Check that this happens before the replacement timeout (5 seconds) fires.
-        matchAllCallback.expectCallback<Lost>(network1, 2_000 /* timeoutMs */)
+        matchAllCallback.expect<Lost>(network1, 2_000 /* timeoutMs */)
         agent1.expectCallback<OnNetworkUnwanted>()
 
         // Test lingering:
@@ -1263,19 +1263,19 @@
         val network4 = agent4.network!!
         matchAllCallback.expectAvailableThenValidatedCallbacks(network4)
         agent4.sendNetworkScore(NetworkScore.Builder().setTransportPrimary(true).build())
-        matchAllCallback.expectCallback<Losing>(network3)
+        matchAllCallback.expect<Losing>(network3)
         testCallback.expectAvailableCallbacks(network4, validated = true)
         mCM.unregisterNetworkCallback(agent4callback)
         agent3.unregisterAfterReplacement(5_000)
         agent3.expectCallback<OnNetworkUnwanted>()
-        matchAllCallback.expectCallback<Lost>(network3, 1000L)
+        matchAllCallback.expect<Lost>(network3, 1000L)
         agent3.expectCallback<OnNetworkDestroyed>()
 
         // Now mark network4 awaiting replacement with a low timeout, and check that if no
         // replacement arrives, it is torn down.
         agent4.unregisterAfterReplacement(100 /* timeoutMillis */)
-        matchAllCallback.expectCallback<Lost>(network4, 1000L /* timeoutMs */)
-        testCallback.expectCallback<Lost>(network4, 1000L /* timeoutMs */)
+        matchAllCallback.expect<Lost>(network4, 1000L /* timeoutMs */)
+        testCallback.expect<Lost>(network4, 1000L /* timeoutMs */)
         agent4.expectCallback<OnNetworkDestroyed>()
         agent4.expectCallback<OnNetworkUnwanted>()
 
@@ -1286,8 +1286,8 @@
         testCallback.expectAvailableThenValidatedCallbacks(network5)
         agent5.unregisterAfterReplacement(5_000 /* timeoutMillis */)
         agent5.unregister()
-        matchAllCallback.expectCallback<Lost>(network5, 1000L /* timeoutMs */)
-        testCallback.expectCallback<Lost>(network5, 1000L /* timeoutMs */)
+        matchAllCallback.expect<Lost>(network5, 1000L /* timeoutMs */)
+        testCallback.expect<Lost>(network5, 1000L /* timeoutMs */)
         agent5.expectCallback<OnNetworkDestroyed>()
         agent5.expectCallback<OnNetworkUnwanted>()
 
@@ -1334,7 +1334,7 @@
             it.hasCapability(NET_CAPABILITY_VALIDATED)
         }
         matchAllCallback.expectAvailableCallbacks(wifiNetwork, validated = false)
-        matchAllCallback.expectCallback<Losing>(cellNetwork)
+        matchAllCallback.expect<Losing>(cellNetwork)
         matchAllCallback.expectCapabilitiesThat(wifiNetwork) {
             it.hasCapability(NET_CAPABILITY_VALIDATED)
         }
@@ -1363,7 +1363,7 @@
         val (newWifiAgent, newWifiNetwork) = connectNetwork(TRANSPORT_WIFI)
         testCallback.expectAvailableCallbacks(newWifiNetwork, validated = true)
         matchAllCallback.expectAvailableThenValidatedCallbacks(newWifiNetwork)
-        matchAllCallback.expectCallback<Lost>(wifiNetwork)
+        matchAllCallback.expect<Lost>(wifiNetwork)
         wifiAgent.expectCallback<OnNetworkUnwanted>()
     }
 
@@ -1382,7 +1382,7 @@
         // lost callback should be sent still.
         agent.markConnected()
         agent.unregister()
-        callback.expectCallback<Available>(agent.network!!)
+        callback.expect<Available>(agent.network!!)
         callback.eventuallyExpect<Lost> { it.network == agent.network }
     }
 }
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index d244d63..12478cb 100755
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -2336,7 +2336,7 @@
         b = registerConnectivityBroadcast(1);
         final TestNetworkCallback callback = new TestNetworkCallback();
         mCm.requestNetwork(legacyRequest, callback);
-        callback.expectCallback(CallbackEntry.AVAILABLE, mCellNetworkAgent);
+        callback.expect(CallbackEntry.AVAILABLE, mCellNetworkAgent);
         mCm.unregisterNetworkCallback(callback);
         b.expectNoBroadcast(800);  // 800ms long enough to at least flake if this is sent
 
@@ -2408,7 +2408,7 @@
         // is added in case of flakiness.
         final int nascentTimeoutMs =
                 mService.mNascentDelayMs + mService.mNascentDelayMs / 4;
-        listenCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent, nascentTimeoutMs);
+        listenCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent, nascentTimeoutMs);
 
         // 2. Create a network that is satisfied by a request comes later.
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
@@ -2424,7 +2424,7 @@
         // to get disconnected as usual if the request is released after the nascent timer expires.
         listenCallback.assertNoCallback(nascentTimeoutMs);
         mCm.unregisterNetworkCallback(wifiCallback);
-        listenCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        listenCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // 3. Create a network that is satisfied by a request comes later.
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
@@ -2435,7 +2435,7 @@
 
         // Verify that the network will still be torn down after the request gets removed.
         mCm.unregisterNetworkCallback(wifiCallback);
-        listenCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        listenCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // There is no need to ensure that LOSING is never sent in the common case that the
         // network immediately satisfies a request that was already present, because it is already
@@ -2481,7 +2481,7 @@
         assertFalse(isForegroundNetwork(mCellNetworkAgent));
 
         mCellNetworkAgent.disconnect();
-        bgMobileListenCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        bgMobileListenCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         fgMobileListenCallback.assertNoCallback();
 
         mCm.unregisterNetworkCallback(wifiListenCallback);
@@ -2726,7 +2726,7 @@
             net1.expectDisconnected(TEST_CALLBACK_TIMEOUT_MS);
         }
         net1.disconnect();
-        generalCb.expectCallback(CallbackEntry.LOST, net1);
+        generalCb.expect(CallbackEntry.LOST, net1);
 
         // Remove primary from net 2
         net2.setScore(new NetworkScore.Builder().build());
@@ -2762,7 +2762,7 @@
             net2.expectDisconnected(TEST_CALLBACK_TIMEOUT_MS);
         }
         net2.disconnect();
-        generalCb.expectCallback(CallbackEntry.LOST, net2);
+        generalCb.expect(CallbackEntry.LOST, net2);
         defaultCb.assertNoCallback();
 
         net3.disconnect();
@@ -2950,7 +2950,7 @@
 
     /**
      * Utility NetworkCallback for testing. The caller must explicitly test for all the callbacks
-     * this class receives, by calling expectCallback() exactly once each time a callback is
+     * this class receives, by calling expect() exactly once each time a callback is
      * received. assertNoCallback may be called at any time.
      */
     private class TestNetworkCallback extends TestableNetworkCallback {
@@ -2966,7 +2966,7 @@
         }
 
         public CallbackEntry.Losing expectLosing(final HasNetwork n, final long timeoutMs) {
-            final CallbackEntry.Losing losing = expectCallback(CallbackEntry.LOSING, n, timeoutMs);
+            final CallbackEntry.Losing losing = expect(CallbackEntry.LOSING, n, timeoutMs);
             final int maxMsToLive = losing.getMaxMsToLive();
             if (maxMsToLive < 0 || maxMsToLive > mService.mLingerDelayMs) {
                 // maxMsToLive is the value that was received in the onLosing callback. That must
@@ -2996,19 +2996,19 @@
 
     static void expectOnLost(TestNetworkAgentWrapper network, TestNetworkCallback ... callbacks) {
         for (TestNetworkCallback c : callbacks) {
-            c.expectCallback(CallbackEntry.LOST, network);
+            c.expect(CallbackEntry.LOST, network);
         }
     }
 
     static void expectAvailableCallbacksUnvalidatedWithSpecifier(TestNetworkAgentWrapper network,
             NetworkSpecifier specifier, TestNetworkCallback ... callbacks) {
         for (TestNetworkCallback c : callbacks) {
-            c.expectCallback(CallbackEntry.AVAILABLE, network);
+            c.expect(CallbackEntry.AVAILABLE, network);
             c.expectCapabilitiesThat(network, (nc) ->
                     !nc.hasCapability(NET_CAPABILITY_VALIDATED)
                             && Objects.equals(specifier, nc.getNetworkSpecifier()));
-            c.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, network);
-            c.expectCallback(CallbackEntry.BLOCKED_STATUS, network);
+            c.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, network);
+            c.expect(CallbackEntry.BLOCKED_STATUS, network);
         }
     }
 
@@ -3091,16 +3091,16 @@
 
         b = registerConnectivityBroadcast(2);
         mWiFiNetworkAgent.disconnect();
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        wifiNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        wifiNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         b.expectBroadcast();
         assertNoCallbacks(genericNetworkCallback, wifiNetworkCallback, cellNetworkCallback);
 
         b = registerConnectivityBroadcast(1);
         mCellNetworkAgent.disconnect();
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         b.expectBroadcast();
         assertNoCallbacks(genericNetworkCallback, wifiNetworkCallback, cellNetworkCallback);
 
@@ -3129,13 +3129,13 @@
         assertNoCallbacks(genericNetworkCallback, wifiNetworkCallback, cellNetworkCallback);
 
         mWiFiNetworkAgent.disconnect();
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        wifiNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        wifiNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         assertNoCallbacks(genericNetworkCallback, wifiNetworkCallback, cellNetworkCallback);
 
         mCellNetworkAgent.disconnect();
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         assertNoCallbacks(genericNetworkCallback, wifiNetworkCallback, cellNetworkCallback);
     }
 
@@ -3284,8 +3284,8 @@
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         mEthernetNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
         defaultCallback.expectAvailableCallbacksValidated(mWiFiNetworkAgent);
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
@@ -3315,7 +3315,7 @@
         // We expect a notification about the capabilities change, and nothing else.
         defaultCallback.expectCapabilitiesWithout(NET_CAPABILITY_NOT_METERED, mWiFiNetworkAgent);
         defaultCallback.assertNoCallback();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         // Wifi no longer satisfies our listen, which is for an unmetered network.
@@ -3324,11 +3324,11 @@
 
         // Disconnect our test networks.
         mWiFiNetworkAgent.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
         mCellNetworkAgent.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         waitForIdle();
         assertEquals(null, mCm.getActiveNetwork());
 
@@ -3359,8 +3359,8 @@
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultCallback.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
         assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
@@ -3378,12 +3378,12 @@
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultCallback.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
         mCellNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         waitForIdle();
         assertEquals(null, mCm.getActiveNetwork());
 
@@ -3414,8 +3414,8 @@
         // Similar to the above: lingering can start even after the lingered request is removed.
         // Disconnect wifi and switch to cell.
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
@@ -3439,7 +3439,7 @@
         // Let linger run its course.
         callback.assertNoCallback();
         final int lingerTimeoutMs = mService.mLingerDelayMs + mService.mLingerDelayMs / 4;
-        callback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent, lingerTimeoutMs);
+        callback.expect(CallbackEntry.LOST, mCellNetworkAgent, lingerTimeoutMs);
 
         // Register a TRACK_DEFAULT request and check that it does not affect lingering.
         TestNetworkCallback trackDefaultCallback = new TestNetworkCallback();
@@ -3455,13 +3455,13 @@
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         // Let linger run its course.
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent, lingerTimeoutMs);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent, lingerTimeoutMs);
 
         // Clean up.
         mEthernetNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
-        trackDefaultCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
+        trackDefaultCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
 
         mCm.unregisterNetworkCallback(callback);
         mCm.unregisterNetworkCallback(defaultCallback);
@@ -3573,7 +3573,7 @@
 
     private void expectDisconnectAndClearNotifications(TestNetworkCallback callback,
             TestNetworkAgentWrapper agent, NotificationType type) {
-        callback.expectCallback(CallbackEntry.LOST, agent);
+        callback.expect(CallbackEntry.LOST, agent);
         expectClearNotification(agent, type);
     }
 
@@ -3758,7 +3758,7 @@
         // (i.e., with explicitlySelected=true and acceptUnvalidated=true). Expect to switch to
         // wifi immediately.
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
         mWiFiNetworkAgent.explicitlySelected(true, true);
         mWiFiNetworkAgent.connect(false);
@@ -3766,13 +3766,13 @@
         callback.expectLosing(mEthernetNetworkAgent);
         assertEquals(mWiFiNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         mEthernetNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
         expectUnvalidationCheckWillNotNotify(mWiFiNetworkAgent);
 
         // Disconnect and reconnect with explicitlySelected=false and acceptUnvalidated=true.
         // Check that the network is not scored specially and that the device prefers cell data.
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
         mWiFiNetworkAgent.explicitlySelected(false, true);
@@ -3785,8 +3785,8 @@
         mWiFiNetworkAgent.disconnect();
         mCellNetworkAgent.disconnect();
 
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mCellNetworkAgent);
     }
 
     private void doTestFirstEvaluation(
@@ -3804,14 +3804,14 @@
         doConnect.accept(mWiFiNetworkAgent);
         // Expect the available callbacks, but don't require specific values for their arguments
         // since this method doesn't know how the network was connected.
-        callback.expectCallback(CallbackEntry.AVAILABLE, mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.BLOCKED_STATUS, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.AVAILABLE, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.BLOCKED_STATUS, mWiFiNetworkAgent);
         if (waitForSecondCaps) {
             // This is necessary because of b/245893397, the same bug that happens where we use
             // expectAvailableDoubleValidatedCallbacks.
-            callback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, mWiFiNetworkAgent);
+            callback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, mWiFiNetworkAgent);
         }
         final NetworkAgentInfo nai =
                 mService.getNetworkAgentInfoForNetwork(mWiFiNetworkAgent.getNetwork());
@@ -3829,7 +3829,7 @@
             assertNotEquals(0L, nai.getFirstEvaluationConcludedTime());
         }
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         mCm.unregisterNetworkCallback(callback);
     }
@@ -4236,7 +4236,7 @@
 
         // Disconnect and reconnect wifi with partial connectivity again.
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
         mWiFiNetworkAgent.connectWithPartialConnectivity();
@@ -4254,7 +4254,7 @@
         // If the user chooses no, disconnect wifi immediately.
         mCm.setAcceptPartialConnectivity(mWiFiNetworkAgent.getNetwork(), false /* accept */,
                 false /* always */);
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         expectClearNotification(mWiFiNetworkAgent, NotificationType.PARTIAL_CONNECTIVITY);
         reset(mNotificationManager);
 
@@ -4280,7 +4280,7 @@
         // Wifi should be the default network.
         assertEquals(mWiFiNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // The user accepted partial connectivity and selected "don't ask again". Now the user
         // reconnects to the partial connectivity network. Switch to wifi as soon as partial
@@ -4306,7 +4306,7 @@
         mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), true);
         callback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // If the user accepted partial connectivity, and the device auto-reconnects to the partial
         // connectivity network, it should contain both PARTIAL_CONNECTIVITY and VALIDATED.
@@ -4325,7 +4325,7 @@
                 NET_CAPABILITY_PARTIAL_CONNECTIVITY | NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
         expectUnvalidationCheckWillNotNotify(mWiFiNetworkAgent);
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         verifyNoMoreInteractions(mNotificationManager);
     }
 
@@ -4408,7 +4408,7 @@
         // Take down network.
         // Expect onLost callback.
         mWiFiNetworkAgent.disconnect();
-        captivePortalCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        captivePortalCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // Bring up a network with a captive portal.
         // Expect onAvailable callback of listen for NET_CAPABILITY_CAPTIVE_PORTAL.
@@ -4422,7 +4422,7 @@
         // Expect onLost callback because network no longer provides NET_CAPABILITY_CAPTIVE_PORTAL.
         mWiFiNetworkAgent.setNetworkValid(false /* isStrictMode */);
         mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), true);
-        captivePortalCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        captivePortalCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // Expect NET_CAPABILITY_VALIDATED onAvailable callback.
         validatedCallback.expectAvailableDoubleValidatedCallbacks(mWiFiNetworkAgent);
@@ -4431,7 +4431,7 @@
         // Expect NET_CAPABILITY_VALIDATED onLost callback.
         mWiFiNetworkAgent.setNetworkInvalid(false /* isStrictMode */);
         mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), false);
-        validatedCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        validatedCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
     }
 
     @Test
@@ -4463,11 +4463,11 @@
         mWiFiNetworkAgent.setNetworkPortal("http://example.com", false /* isStrictMode */);
         mCm.reportNetworkConnectivity(wifiNetwork, false);
         captivePortalCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
-        validatedCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        validatedCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         // This is necessary because of b/245893397, the same bug that happens where we use
         // expectAvailableDoubleValidatedCallbacks.
         // TODO : fix b/245893397 and remove this.
-        captivePortalCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+        captivePortalCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                 mWiFiNetworkAgent);
 
         // Check that startCaptivePortalApp sends the expected command to NetworkMonitor.
@@ -4491,7 +4491,7 @@
         mWiFiNetworkAgent.setNetworkValid(false /* isStrictMode */);
         mWiFiNetworkAgent.mNetworkMonitor.forceReevaluation(Process.myUid());
         validatedCallback.expectAvailableCallbacksValidated(mWiFiNetworkAgent);
-        captivePortalCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        captivePortalCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         mCm.unregisterNetworkCallback(validatedCallback);
         mCm.unregisterNetworkCallback(captivePortalCallback);
@@ -5032,7 +5032,7 @@
 
         // Bring down cell. Expect no default network callback, since it wasn't the default.
         mCellNetworkAgent.disconnect();
-        cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         defaultNetworkCallback.assertNoCallback();
         systemDefaultCallback.assertNoCallback();
         assertEquals(defaultNetworkCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
@@ -5051,14 +5051,14 @@
         // followed by AVAILABLE cell.
         mWiFiNetworkAgent.disconnect();
         cellNetworkCallback.assertNoCallback();
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultNetworkCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
-        systemDefaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         systemDefaultCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
         mCellNetworkAgent.disconnect();
-        cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        systemDefaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         waitForIdle();
         assertEquals(null, mCm.getActiveNetwork());
 
@@ -5070,7 +5070,7 @@
         assertEquals(null, systemDefaultCallback.getLastAvailableNetwork());
 
         mMockVpn.disconnect();
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mMockVpn);
         systemDefaultCallback.assertNoCallback();
         waitForIdle();
         assertEquals(null, mCm.getActiveNetwork());
@@ -5099,7 +5099,7 @@
         lp.setInterfaceName("foonet_data0");
         mCellNetworkAgent.sendLinkProperties(lp);
         // We should get onLinkPropertiesChanged().
-        cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
 
@@ -5107,7 +5107,7 @@
         mCellNetworkAgent.suspend();
         cellNetworkCallback.expectCapabilitiesWithout(NET_CAPABILITY_NOT_SUSPENDED,
                 mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.SUSPENDED, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.SUSPENDED, mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertEquals(NetworkInfo.State.SUSPENDED, mCm.getActiveNetworkInfo().getState());
 
@@ -5123,7 +5123,7 @@
         mCellNetworkAgent.resume();
         cellNetworkCallback.expectCapabilitiesWith(NET_CAPABILITY_NOT_SUSPENDED,
                 mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.RESUMED, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.RESUMED, mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertEquals(NetworkInfo.State.CONNECTED, mCm.getActiveNetworkInfo().getState());
 
@@ -5194,9 +5194,9 @@
         otherUidCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
         includeOtherUidsCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        otherUidCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        includeOtherUidsCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        otherUidCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        includeOtherUidsCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // Only the includeOtherUidsCallback sees a VPN that does not apply to its UID.
         final UidRange range = UidRange.createForUser(UserHandle.of(RESTRICTED_USER));
@@ -5207,7 +5207,7 @@
         otherUidCallback.assertNoCallback();
 
         mMockVpn.disconnect();
-        includeOtherUidsCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        includeOtherUidsCallback.expect(CallbackEntry.LOST, mMockVpn);
         callback.assertNoCallback();
         otherUidCallback.assertNoCallback();
     }
@@ -5352,7 +5352,7 @@
         // When lingering is complete, cell is still there but is now in the background.
         waitForIdle();
         int timeoutMs = TEST_LINGER_DELAY_MS + TEST_LINGER_DELAY_MS / 4;
-        fgCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent, timeoutMs);
+        fgCallback.expect(CallbackEntry.LOST, mCellNetworkAgent, timeoutMs);
         // Expect a network capabilities update sans FOREGROUND.
         callback.expectCapabilitiesWithout(NET_CAPABILITY_FOREGROUND, mCellNetworkAgent);
         assertFalse(isForegroundNetwork(mCellNetworkAgent));
@@ -5375,7 +5375,7 @@
         // Release the request. The network immediately goes into the background, since it was not
         // lingering.
         mCm.unregisterNetworkCallback(cellCallback);
-        fgCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        fgCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         // Expect a network capabilities update sans FOREGROUND.
         callback.expectCapabilitiesWithout(NET_CAPABILITY_FOREGROUND, mCellNetworkAgent);
         assertFalse(isForegroundNetwork(mCellNetworkAgent));
@@ -5383,8 +5383,8 @@
 
         // Disconnect wifi and check that cell is foreground again.
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        fgCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        fgCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         fgCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
         assertTrue(isForegroundNetwork(mCellNetworkAgent));
 
@@ -5543,7 +5543,7 @@
             // Cell disconnects. There is still the "mobile data always on" request outstanding,
             // and the test factory should see it now that it isn't hopelessly outscored.
             mCellNetworkAgent.disconnect();
-            cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+            cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
             // Wait for the network to be removed from internal structures before
             // calling synchronous getter
             waitForIdle();
@@ -5566,7 +5566,7 @@
             testFactory.assertRequestCountEquals(0);
             assertFalse(testFactory.getMyStartRequested());
             // ...  and cell data to be torn down immediately since it is no longer nascent.
-            cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+            cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
             waitForIdle();
             assertLength(1, mCm.getAllNetworks());
             testFactory.terminate();
@@ -5743,7 +5743,7 @@
 
         // Disconnect wifi and pretend the carrier restricts moving away from bad wifi.
         mWiFiNetworkAgent.disconnect();
-        wifiNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        wifiNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         // This has getAvoidBadWifi return false. This test doesn't change the value of the
         // associated setting.
         doReturn(0).when(mResources).getInteger(R.integer.config_networkAvoidBadWifi);
@@ -5863,7 +5863,7 @@
         mWiFiNetworkAgent.setNetworkInvalid(false /* isStrictMode */);
         mCm.reportNetworkConnectivity(wifiNetwork, false);
         defaultCallback.expectCapabilitiesWithout(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
-        validatedWifiCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        validatedWifiCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         expectNotification(mWiFiNetworkAgent, NotificationType.LOST_INTERNET);
 
         // Because avoid bad wifi is off, we don't switch to cellular.
@@ -5914,7 +5914,7 @@
         mWiFiNetworkAgent.setNetworkInvalid(false /* isStrictMode */);
         mCm.reportNetworkConnectivity(wifiNetwork, false);
         defaultCallback.expectCapabilitiesWithout(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
-        validatedWifiCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        validatedWifiCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         expectNotification(mWiFiNetworkAgent, NotificationType.LOST_INTERNET);
 
         // Simulate the user selecting "switch" and checking the don't ask again checkbox.
@@ -5946,7 +5946,7 @@
 
         // If cell goes down, we switch to wifi.
         mCellNetworkAgent.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         defaultCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
         validatedWifiCallback.assertNoCallback();
         // Notification is cleared yet again because the device switched to wifi.
@@ -6012,7 +6012,7 @@
         networkCallback.expectAvailableCallbacks(mWiFiNetworkAgent, false, false, false,
                 TEST_CALLBACK_TIMEOUT_MS);
         mWiFiNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         // Validate that UNAVAILABLE is not called
         networkCallback.assertNoCallback();
@@ -6032,7 +6032,7 @@
         mCm.requestNetwork(nr, networkCallback, timeoutMs);
 
         // pass timeout and validate that UNAVAILABLE is called
-        networkCallback.expectCallback(CallbackEntry.UNAVAILABLE, (Network) null);
+        networkCallback.expect(CallbackEntry.UNAVAILABLE);
 
         // create a network satisfying request - validate that request not triggered
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
@@ -6116,7 +6116,7 @@
                 // onUnavailable!
                 testFactory.triggerUnfulfillable(newRequest);
 
-                networkCallback.expectCallback(CallbackEntry.UNAVAILABLE, (Network) null);
+                networkCallback.expect(CallbackEntry.UNAVAILABLE);
 
                 // Declaring a request unfulfillable releases it automatically.
                 testFactory.expectRequestRemove();
@@ -6198,20 +6198,20 @@
             mCallbacks.add(new CallbackValue(CallbackType.ON_ERROR, error));
         }
 
-        private void expectCallback(CallbackValue callbackValue) throws InterruptedException {
+        private void expect(CallbackValue callbackValue) throws InterruptedException {
             assertEquals(callbackValue, mCallbacks.poll(TIMEOUT_MS, TimeUnit.MILLISECONDS));
         }
 
         public void expectStarted() throws Exception {
-            expectCallback(new CallbackValue(CallbackType.ON_STARTED));
+            expect(new CallbackValue(CallbackType.ON_STARTED));
         }
 
         public void expectStopped() throws Exception {
-            expectCallback(new CallbackValue(CallbackType.ON_STOPPED));
+            expect(new CallbackValue(CallbackType.ON_STOPPED));
         }
 
         public void expectError(int error) throws Exception {
-            expectCallback(new CallbackValue(CallbackType.ON_ERROR, error));
+            expect(new CallbackValue(CallbackType.ON_ERROR, error));
         }
     }
 
@@ -6271,21 +6271,21 @@
             mCallbacks.add(new CallbackValue(CallbackType.ON_ERROR, error));
         }
 
-        private void expectCallback(CallbackValue callbackValue) throws InterruptedException {
+        private void expect(CallbackValue callbackValue) throws InterruptedException {
             assertEquals(callbackValue, mCallbacks.poll(TIMEOUT_MS, TimeUnit.MILLISECONDS));
 
         }
 
         public void expectStarted() throws InterruptedException {
-            expectCallback(new CallbackValue(CallbackType.ON_STARTED));
+            expect(new CallbackValue(CallbackType.ON_STARTED));
         }
 
         public void expectStopped() throws InterruptedException {
-            expectCallback(new CallbackValue(CallbackType.ON_STOPPED));
+            expect(new CallbackValue(CallbackType.ON_STOPPED));
         }
 
         public void expectError(int error) throws InterruptedException {
-            expectCallback(new CallbackValue(CallbackType.ON_ERROR, error));
+            expect(new CallbackValue(CallbackType.ON_ERROR, error));
         }
 
         public void assertNoCallback() {
@@ -7081,7 +7081,7 @@
 
         // Disconnect wifi aware network.
         wifiAware.disconnect();
-        callback.expectCallbackThat(TIMEOUT_MS, (info) -> info instanceof CallbackEntry.Lost);
+        callback.expect(CallbackEntry.LOST, TIMEOUT_MS);
         mCm.unregisterNetworkCallback(callback);
 
         verifyNoNetwork();
@@ -7128,12 +7128,12 @@
         // ConnectivityService.
         TestNetworkAgentWrapper networkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
         networkAgent.connect(true);
-        networkCallback.expectCallback(CallbackEntry.AVAILABLE, networkAgent);
-        networkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, networkAgent);
+        networkCallback.expect(CallbackEntry.AVAILABLE, networkAgent);
+        networkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, networkAgent);
         CallbackEntry.LinkPropertiesChanged cbi =
-                networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+                networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 networkAgent);
-        networkCallback.expectCallback(CallbackEntry.BLOCKED_STATUS, networkAgent);
+        networkCallback.expect(CallbackEntry.BLOCKED_STATUS, networkAgent);
         networkCallback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, networkAgent);
         networkCallback.assertNoCallback();
         checkDirectlyConnectedRoutes(cbi.getLp(), asList(myIpv4Address),
@@ -7148,7 +7148,7 @@
         newLp.addLinkAddress(myIpv6Address1);
         newLp.addLinkAddress(myIpv6Address2);
         networkAgent.sendLinkProperties(newLp);
-        cbi = networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, networkAgent);
+        cbi = networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, networkAgent);
         networkCallback.assertNoCallback();
         checkDirectlyConnectedRoutes(cbi.getLp(),
                 asList(myIpv4Address, myIpv6Address1, myIpv6Address2),
@@ -7383,7 +7383,7 @@
                 NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, PERMISSION_GRANTED);
         TestNetworkCallback callback = new TestNetworkCallback();
         mCm.registerDefaultNetworkCallback(callback);
-        callback.expectCallback(CallbackEntry.AVAILABLE, mCellNetworkAgent);
+        callback.expect(CallbackEntry.AVAILABLE, mCellNetworkAgent);
         callback.expectCapabilitiesThat(
                 mCellNetworkAgent, nc -> Arrays.equals(adminUids, nc.getAdministratorUids()));
         mCm.unregisterNetworkCallback(callback);
@@ -7394,7 +7394,7 @@
         mServiceContext.setPermission(NETWORK_STACK, PERMISSION_DENIED);
         callback = new TestNetworkCallback();
         mCm.registerDefaultNetworkCallback(callback);
-        callback.expectCallback(CallbackEntry.AVAILABLE, mCellNetworkAgent);
+        callback.expect(CallbackEntry.AVAILABLE, mCellNetworkAgent);
         callback.expectCapabilitiesThat(
                 mCellNetworkAgent, nc -> nc.getAdministratorUids().length == 0);
     }
@@ -7648,12 +7648,12 @@
         assertTrue(new ArraySet<>(resolvrParams.tlsServers).containsAll(
                 asList("2001:db8::1", "192.0.2.1")));
         reset(mMockDnsResolver);
-        cellNetworkCallback.expectCallback(CallbackEntry.AVAILABLE, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+        cellNetworkCallback.expect(CallbackEntry.AVAILABLE, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                 mCellNetworkAgent);
-        CallbackEntry.LinkPropertiesChanged cbi = cellNetworkCallback.expectCallback(
+        CallbackEntry.LinkPropertiesChanged cbi = cellNetworkCallback.expect(
                 CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.BLOCKED_STATUS, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.BLOCKED_STATUS, mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertFalse(cbi.getLp().isPrivateDnsActive());
         assertNull(cbi.getLp().getPrivateDnsServerName());
@@ -7684,7 +7684,7 @@
         setPrivateDnsSettings(PRIVATE_DNS_MODE_PROVIDER_HOSTNAME, "strict.example.com");
         // Can't test dns configuration for strict mode without properly mocking
         // out the DNS lookups, but can test that LinkProperties is updated.
-        cbi = cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cbi = cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertTrue(cbi.getLp().isPrivateDnsActive());
@@ -7717,12 +7717,12 @@
         mCellNetworkAgent.sendLinkProperties(lp);
         mCellNetworkAgent.connect(false);
         waitForIdle();
-        cellNetworkCallback.expectCallback(CallbackEntry.AVAILABLE, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+        cellNetworkCallback.expect(CallbackEntry.AVAILABLE, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                 mCellNetworkAgent);
-        CallbackEntry.LinkPropertiesChanged cbi = cellNetworkCallback.expectCallback(
+        CallbackEntry.LinkPropertiesChanged cbi = cellNetworkCallback.expect(
                 CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
-        cellNetworkCallback.expectCallback(CallbackEntry.BLOCKED_STATUS, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.BLOCKED_STATUS, mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertFalse(cbi.getLp().isPrivateDnsActive());
         assertNull(cbi.getLp().getPrivateDnsServerName());
@@ -7740,7 +7740,7 @@
         LinkProperties lp2 = new LinkProperties(lp);
         lp2.addDnsServer(InetAddress.getByName("145.100.185.16"));
         mCellNetworkAgent.sendLinkProperties(lp2);
-        cbi = cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cbi = cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertFalse(cbi.getLp().isPrivateDnsActive());
@@ -7767,7 +7767,7 @@
         mService.mResolverUnsolEventCallback.onPrivateDnsValidationEvent(
                 makePrivateDnsValidationEvent(mCellNetworkAgent.getNetwork().netId,
                         "145.100.185.16", "", VALIDATION_RESULT_SUCCESS));
-        cbi = cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cbi = cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertTrue(cbi.getLp().isPrivateDnsActive());
@@ -7779,7 +7779,7 @@
         LinkProperties lp3 = new LinkProperties(lp2);
         lp3.setMtu(1300);
         mCellNetworkAgent.sendLinkProperties(lp3);
-        cbi = cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cbi = cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertTrue(cbi.getLp().isPrivateDnsActive());
@@ -7792,7 +7792,7 @@
         LinkProperties lp4 = new LinkProperties(lp3);
         lp4.removeDnsServer(InetAddress.getByName("145.100.185.16"));
         mCellNetworkAgent.sendLinkProperties(lp4);
-        cbi = cellNetworkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        cbi = cellNetworkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         cellNetworkCallback.assertNoCallback();
         assertFalse(cbi.getLp().isPrivateDnsActive());
@@ -7984,7 +7984,7 @@
             mMockVpn.setUnderlyingNetworks(new Network[]{wifiNetwork});
             // onCapabilitiesChanged() should be called because
             // NetworkCapabilities#mUnderlyingNetworks is updated.
-            CallbackEntry ce = callback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+            CallbackEntry ce = callback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                     mMockVpn);
             final NetworkCapabilities vpnNc1 = ((CallbackEntry.CapabilitiesChanged) ce).getCaps();
             // Since the wifi network hasn't brought up,
@@ -8021,7 +8021,7 @@
             // 2. When a network connects, updateNetworkInfo propagates underlying network
             //    capabilities before rematching networks.
             // Given that this scenario can't really happen, this is probably fine for now.
-            ce = callback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
+            ce = callback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
             final NetworkCapabilities vpnNc2 = ((CallbackEntry.CapabilitiesChanged) ce).getCaps();
             // The wifi network is brought up, NetworkCapabilities#mUnderlyingNetworks is updated to
             // it.
@@ -8035,7 +8035,7 @@
 
             // Disconnect the network, and expect to see the VPN capabilities change accordingly.
             mWiFiNetworkAgent.disconnect();
-            callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+            callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
             callback.expectCapabilitiesThat(mMockVpn, (nc) ->
                     nc.getTransportTypes().length == 1 && nc.hasTransport(TRANSPORT_VPN));
 
@@ -8081,7 +8081,7 @@
         callback.expectCapabilitiesThat(mMockVpn,
                 nc -> !nc.hasCapability(NET_CAPABILITY_NOT_SUSPENDED)
                         && nc.hasTransport(TRANSPORT_CELLULAR));
-        callback.expectCallback(CallbackEntry.SUSPENDED, mMockVpn);
+        callback.expect(CallbackEntry.SUSPENDED, mMockVpn);
         callback.assertNoCallback();
 
         assertFalse(mCm.getNetworkCapabilities(mMockVpn.getNetwork())
@@ -8099,7 +8099,7 @@
         callback.expectCapabilitiesThat(mMockVpn,
                 nc -> nc.hasCapability(NET_CAPABILITY_NOT_SUSPENDED)
                         && nc.hasTransport(TRANSPORT_WIFI));
-        callback.expectCallback(CallbackEntry.RESUMED, mMockVpn);
+        callback.expect(CallbackEntry.RESUMED, mMockVpn);
         callback.assertNoCallback();
 
         assertTrue(mCm.getNetworkCapabilities(mMockVpn.getNetwork())
@@ -8136,7 +8136,7 @@
         callback.expectCapabilitiesThat(mMockVpn,
                 nc -> !nc.hasCapability(NET_CAPABILITY_NOT_SUSPENDED)
                         && nc.hasTransport(TRANSPORT_CELLULAR));
-        callback.expectCallback(CallbackEntry.SUSPENDED, mMockVpn);
+        callback.expect(CallbackEntry.SUSPENDED, mMockVpn);
         callback.assertNoCallback();
 
         assertFalse(mCm.getNetworkCapabilities(mMockVpn.getNetwork())
@@ -8152,7 +8152,7 @@
         callback.expectCapabilitiesThat(mMockVpn,
                 nc -> nc.hasCapability(NET_CAPABILITY_NOT_SUSPENDED)
                         && nc.hasTransport(TRANSPORT_CELLULAR));
-        callback.expectCallback(CallbackEntry.RESUMED, mMockVpn);
+        callback.expect(CallbackEntry.RESUMED, mMockVpn);
         callback.assertNoCallback();
 
         assertTrue(mCm.getNetworkCapabilities(mMockVpn.getNetwork())
@@ -8232,10 +8232,10 @@
         ranges.clear();
         mMockVpn.setUids(ranges);
 
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mMockVpn);
         genericNotVpnNetworkCallback.assertNoCallback();
         wifiNetworkCallback.assertNoCallback();
-        vpnNetworkCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.LOST, mMockVpn);
 
         // TODO : The default network callback should actually get a LOST call here (also see the
         // comment below for AVAILABLE). This is because ConnectivityService does not look at UID
@@ -8243,7 +8243,7 @@
         // can't currently update their UIDs without disconnecting, so this does not matter too
         // much, but that is the reason the test here has to check for an update to the
         // capabilities instead of the expected LOST then AVAILABLE.
-        defaultCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
+        defaultCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
         systemDefaultCallback.assertNoCallback();
 
         ranges.add(new UidRange(uid, uid));
@@ -8255,25 +8255,25 @@
         vpnNetworkCallback.expectAvailableCallbacksValidated(mMockVpn);
         // TODO : Here like above, AVAILABLE would be correct, but because this can't actually
         // happen outside of the test, ConnectivityService does not rematch callbacks.
-        defaultCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
+        defaultCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED, mMockVpn);
         systemDefaultCallback.assertNoCallback();
 
         mWiFiNetworkAgent.disconnect();
 
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        genericNotVpnNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        wifiNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        genericNotVpnNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        wifiNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         vpnNetworkCallback.assertNoCallback();
         defaultCallback.assertNoCallback();
-        systemDefaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
 
         mMockVpn.disconnect();
 
-        genericNetworkCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        genericNetworkCallback.expect(CallbackEntry.LOST, mMockVpn);
         genericNotVpnNetworkCallback.assertNoCallback();
         wifiNetworkCallback.assertNoCallback();
-        vpnNetworkCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.LOST, mMockVpn);
+        defaultCallback.expect(CallbackEntry.LOST, mMockVpn);
         systemDefaultCallback.assertNoCallback();
         assertEquals(null, mCm.getActiveNetwork());
 
@@ -8331,7 +8331,7 @@
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
         mMockVpn.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        defaultCallback.expect(CallbackEntry.LOST, mMockVpn);
         defaultCallback.expectAvailableCallbacksValidated(mWiFiNetworkAgent);
 
         mCm.unregisterNetworkCallback(defaultCallback);
@@ -8379,7 +8379,7 @@
         callback.assertNoCallback();
 
         mMockVpn.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        callback.expect(CallbackEntry.LOST, mMockVpn);
         callback.expectAvailableCallbacksValidated(mEthernetNetworkAgent);
     }
 
@@ -8513,7 +8513,7 @@
                 && caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-        vpnNetworkCallback.expectCallback(CallbackEntry.SUSPENDED, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.SUSPENDED, mMockVpn);
 
         // Add NOT_SUSPENDED again and observe VPN is no longer suspended.
         mCellNetworkAgent.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
@@ -8522,7 +8522,7 @@
                 && caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
                 && caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-        vpnNetworkCallback.expectCallback(CallbackEntry.RESUMED, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.RESUMED, mMockVpn);
 
         // Use Wifi but not cell. Note the VPN is now unmetered and not suspended.
         mMockVpn.setUnderlyingNetworks(
@@ -8558,7 +8558,7 @@
                 && caps.hasTransport(TRANSPORT_CELLULAR)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-        vpnNetworkCallback.expectCallback(CallbackEntry.SUSPENDED, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.SUSPENDED, mMockVpn);
         assertDefaultNetworkCapabilities(userId, mCellNetworkAgent, mWiFiNetworkAgent);
 
         // Use both again.
@@ -8570,7 +8570,7 @@
                 && caps.hasTransport(TRANSPORT_CELLULAR) && caps.hasTransport(TRANSPORT_WIFI)
                 && !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
                 && caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-        vpnNetworkCallback.expectCallback(CallbackEntry.RESUMED, mMockVpn);
+        vpnNetworkCallback.expect(CallbackEntry.RESUMED, mMockVpn);
         assertDefaultNetworkCapabilities(userId, mCellNetworkAgent, mWiFiNetworkAgent);
 
         // Disconnect cell. Receive update without even removing the dead network from the
@@ -8711,7 +8711,7 @@
 
         // Change the VPN's capabilities somehow (specifically, disconnect wifi).
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         callback.expectCapabilitiesThat(mMockVpn, (caps)
                 -> caps.getUids().size() == 2
                 && caps.getUids().contains(singleUidRange)
@@ -9135,7 +9135,7 @@
 
         // Switch to METERED network. Restrict the use of the network.
         mWiFiNetworkAgent.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         defaultCallback.expectAvailableCallbacksValidatedAndBlocked(mCellNetworkAgent);
 
         // Network becomes NOT_METERED.
@@ -9149,7 +9149,7 @@
         defaultCallback.assertNoCallback();
 
         mCellNetworkAgent.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         defaultCallback.assertNoCallback();
 
         mCm.unregisterNetworkCallback(defaultCallback);
@@ -9213,10 +9213,9 @@
 
         // Expect exactly one blocked callback for each agent.
         for (int i = 0; i < agents.length; i++) {
-            CallbackEntry e = callback.expectCallbackThat(TIMEOUT_MS, (c) ->
-                    c instanceof CallbackEntry.BlockedStatus
-                            && ((CallbackEntry.BlockedStatus) c).getBlocked() == blocked);
-            Network network = e.getNetwork();
+            final CallbackEntry e = callback.expect(CallbackEntry.BLOCKED_STATUS, TIMEOUT_MS,
+                    c -> c.getBlocked() == blocked);
+            final Network network = e.getNetwork();
             assertTrue("Received unexpected blocked callback for network " + network,
                     expectedNetworks.remove(network));
         }
@@ -9421,7 +9420,7 @@
         assertNetworkInfo(TYPE_WIFI, DetailedState.CONNECTED);
 
         mMockVpn.disconnect();
-        defaultCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        defaultCallback.expect(CallbackEntry.LOST, mMockVpn);
         defaultCallback.expectAvailableCallbacksUnvalidatedAndBlocked(mWiFiNetworkAgent);
         vpnUidCallback.assertNoCallback();
         vpnUidDefaultCallback.assertNoCallback();
@@ -9573,9 +9572,9 @@
         cellLp.addLinkAddress(new LinkAddress("192.0.2.2/25"));
         cellLp.addRoute(new RouteInfo(new IpPrefix("0.0.0.0/0"), null, "rmnet0"));
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        callback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
-        systemDefaultCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED,
+        callback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED,
                 mCellNetworkAgent);
         waitForIdle();
         assertNull(mMockVpn.getAgent());
@@ -9584,9 +9583,9 @@
         // Expect lockdown VPN to come up.
         ExpectedBroadcast b1 = expectConnectivityAction(TYPE_MOBILE, DetailedState.DISCONNECTED);
         mCellNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        systemDefaultCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         b1.expectBroadcast();
 
         // When lockdown VPN is active, the NetworkInfo state in CONNECTIVITY_ACTION is overwritten
@@ -9664,8 +9663,8 @@
         // fact that a VPN is connected should only result in the VPN itself being unblocked, not
         // any other network. Bug in isUidBlockedByVpn?
         callback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.LOST, mMockVpn);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        callback.expect(CallbackEntry.LOST, mMockVpn);
+        defaultCallback.expect(CallbackEntry.LOST, mMockVpn);
         defaultCallback.expectAvailableCallbacksUnvalidatedAndBlocked(mWiFiNetworkAgent);
         systemDefaultCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
 
@@ -9698,7 +9697,7 @@
 
         // Disconnect cell. Nothing much happens since it's not the default network.
         mCellNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         defaultCallback.assertNoCallback();
         systemDefaultCallback.assertNoCallback();
 
@@ -9711,12 +9710,12 @@
         b1 = expectConnectivityAction(TYPE_WIFI, DetailedState.DISCONNECTED);
         b2 = expectConnectivityAction(TYPE_VPN, DetailedState.DISCONNECTED);
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        systemDefaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        systemDefaultCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         b1.expectBroadcast();
         callback.expectCapabilitiesThat(mMockVpn, nc -> !nc.hasTransport(TRANSPORT_WIFI));
         mMockVpn.expectStopVpnRunnerPrivileged();
-        callback.expectCallback(CallbackEntry.LOST, mMockVpn);
+        callback.expect(CallbackEntry.LOST, mMockVpn);
         b2.expectBroadcast();
 
         VMSHandlerThread.quitSafely();
@@ -9888,7 +9887,7 @@
             reset(mMockNetd);
 
             mCellNetworkAgent.removeCapability(testCap);
-            callbackWithCap.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+            callbackWithCap.expect(CallbackEntry.LOST, mCellNetworkAgent);
             callbackWithoutCap.assertNoCallback();
             verify(mMockNetd).networkClearDefault();
 
@@ -10078,7 +10077,7 @@
         // the NAT64 prefix was removed because one was never discovered.
         cellLp.addLinkAddress(myIpv4);
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         assertRoutesAdded(cellNetId, ipv4Subnet);
         verify(mMockDnsResolver, times(1)).stopPrefix64Discovery(cellNetId);
         verify(mMockDnsResolver, atLeastOnce()).setResolverConfiguration(any());
@@ -10101,7 +10100,7 @@
         // Remove IPv4 address. Expect prefix discovery to be started again.
         cellLp.removeLinkAddress(myIpv4);
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         verify(mMockDnsResolver, times(1)).startPrefix64Discovery(cellNetId);
         assertRoutesRemoved(cellNetId, ipv4Subnet);
 
@@ -10110,7 +10109,7 @@
         assertNull(mCm.getLinkProperties(mCellNetworkAgent.getNetwork()).getNat64Prefix());
         mService.mResolverUnsolEventCallback.onNat64PrefixEvent(
                 makeNat64PrefixEvent(cellNetId, PREFIX_OPERATION_ADDED, kNat64PrefixString, 96));
-        LinkProperties lpBeforeClat = networkCallback.expectCallback(
+        LinkProperties lpBeforeClat = networkCallback.expect(
                 CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent).getLp();
         assertEquals(0, lpBeforeClat.getStackedLinks().size());
         assertEquals(kNat64Prefix, lpBeforeClat.getNat64Prefix());
@@ -10118,7 +10117,7 @@
 
         // Clat iface comes up. Expect stacked link to be added.
         clat.interfaceLinkStateChanged(CLAT_MOBILE_IFNAME, true);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         List<LinkProperties> stackedLps = mCm.getLinkProperties(mCellNetworkAgent.getNetwork())
                 .getStackedLinks();
         assertEquals(makeClatLinkProperties(myIpv4), stackedLps.get(0));
@@ -10127,7 +10126,7 @@
         // Change trivial linkproperties and see if stacked link is preserved.
         cellLp.addDnsServer(InetAddress.getByName("8.8.8.8"));
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
 
         List<LinkProperties> stackedLpsAfterChange =
                 mCm.getLinkProperties(mCellNetworkAgent.getNetwork()).getStackedLinks();
@@ -10176,13 +10175,13 @@
         cellLp.addLinkAddress(myIpv4);
         cellLp.addRoute(ipv4Subnet);
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         assertRoutesAdded(cellNetId, ipv4Subnet);
         verifyClatdStop(null /* inOrder */, MOBILE_IFNAME);
         verify(mMockDnsResolver, times(1)).stopPrefix64Discovery(cellNetId);
 
         // As soon as stop is called, the linkproperties lose the stacked interface.
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         LinkProperties actualLpAfterIpv4 = mCm.getLinkProperties(mCellNetworkAgent.getNetwork());
         LinkProperties expected = new LinkProperties(cellLp);
         expected.setNat64Prefix(kOtherNat64Prefix);
@@ -10214,12 +10213,12 @@
         cellLp.removeRoute(new RouteInfo(myIpv4, null, MOBILE_IFNAME));
         cellLp.removeDnsServer(InetAddress.getByName("8.8.8.8"));
         mCellNetworkAgent.sendLinkProperties(cellLp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         assertRoutesRemoved(cellNetId, ipv4Subnet);  // Directly-connected routes auto-added.
         verify(mMockDnsResolver, times(1)).startPrefix64Discovery(cellNetId);
         mService.mResolverUnsolEventCallback.onNat64PrefixEvent(makeNat64PrefixEvent(
                 cellNetId, PREFIX_OPERATION_ADDED, kNat64PrefixString, 96));
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         verifyClatdStart(null /* inOrder */, MOBILE_IFNAME, cellNetId, kNat64Prefix.toString());
 
         // Clat iface comes up. Expect stacked link to be added.
@@ -10244,7 +10243,7 @@
         verify(mMockNetd, times(1)).interfaceGetCfg(CLAT_MOBILE_IFNAME);
         // Clean up.
         mCellNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         networkCallback.assertNoCallback();
         verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(MOBILE_IFNAME), anyInt(),
                 eq(Integer.toString(TRANSPORT_CELLULAR)));
@@ -10283,7 +10282,7 @@
 
         // Disconnect the network. clat is stopped and the network is destroyed.
         mCellNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         networkCallback.assertNoCallback();
         verifyClatdStop(null /* inOrder */, MOBILE_IFNAME);
         verify(mMockNetd).idletimerRemoveInterface(eq(MOBILE_IFNAME), anyInt(),
@@ -10457,7 +10456,7 @@
         // clat has been stopped, or the test will be flaky.
         ExpectedBroadcast b = expectConnectivityAction(TYPE_WIFI, DetailedState.DISCONNECTED);
         mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         b.expectBroadcast();
 
         verifyClatdStop(inOrder, iface);
@@ -10541,7 +10540,7 @@
         // Disconnect wifi and switch back to cell
         reset(mMockNetd);
         mWiFiNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         assertNoCallbacks(networkCallback);
         verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(WIFI_IFNAME), anyInt(),
                 eq(Integer.toString(TRANSPORT_WIFI)));
@@ -10565,7 +10564,7 @@
         // Disconnect cell
         reset(mMockNetd);
         mCellNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         // LOST callback is triggered earlier than removing idle timer. Broadcast should also be
         // sent as network being switched. Ensure rule removal for cell will not be triggered
         // unexpectedly before network being removed.
@@ -10615,11 +10614,11 @@
         LinkProperties lp = new LinkProperties();
         lp.setTcpBufferSizes(testTcpBufferSizes);
         mCellNetworkAgent.sendLinkProperties(lp);
-        networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
         verifyTcpBufferSizeChange(testTcpBufferSizes);
         // Clean up.
         mCellNetworkAgent.disconnect();
-        networkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        networkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         networkCallback.assertNoCallback();
         mCm.unregisterNetworkCallback(networkCallback);
     }
@@ -12239,7 +12238,7 @@
         allNetworksCb.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
         allNetworksCb.expectLosing(mCellNetworkAgent);
         allNetworksCb.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
-        allNetworksCb.expectCallback(CallbackEntry.LOST, mCellNetworkAgent,
+        allNetworksCb.expect(CallbackEntry.LOST, mCellNetworkAgent,
                 TEST_LINGER_DELAY_MS * 2);
 
         // The cell network has disconnected (see LOST above) because it was outscored and
@@ -12251,7 +12250,7 @@
 
         // The cell network gets torn down right away.
         allNetworksCb.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
-        allNetworksCb.expectCallback(CallbackEntry.LOST, mCellNetworkAgent,
+        allNetworksCb.expect(CallbackEntry.LOST, mCellNetworkAgent,
                 TEST_NASCENT_DELAY_MS * 2);
         allNetworksCb.assertNoCallback();
 
@@ -12268,8 +12267,8 @@
 
         mWiFiNetworkAgent.disconnect();
 
-        allNetworksCb.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        allNetworksCb.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
+        mDefaultNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         mDefaultNetworkCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
 
         // Reconnect a WiFi network and make sure the cell network is still not torn down.
@@ -12283,8 +12282,7 @@
         // torn down.
         mCellNetworkAgent.setScore(new NetworkScore.Builder().setLegacyInt(30).build());
         allNetworksCb.expectLosing(mCellNetworkAgent, TEST_NASCENT_DELAY_MS * 2);
-        allNetworksCb.expectCallback(CallbackEntry.LOST, mCellNetworkAgent,
-                TEST_LINGER_DELAY_MS * 2);
+        allNetworksCb.expect(CallbackEntry.LOST, mCellNetworkAgent, TEST_LINGER_DELAY_MS * 2);
         mDefaultNetworkCallback.assertNoCallback();
 
         mCm.unregisterNetworkCallback(allNetworksCb);
@@ -13255,7 +13253,7 @@
         setOemNetworkPreferenceAgentConnected(TRANSPORT_ETHERNET, false);
 
         // At this point, with no network is available, the lost callback should trigger
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
         otherUidDefaultCallback.assertNoCallback();
 
         // Confirm we can unregister without issues.
@@ -13301,7 +13299,7 @@
         otherUidDefaultCallback.assertNoCallback();
 
         // At this point, with no network is available, the lost callback should trigger
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
         otherUidDefaultCallback.assertNoCallback();
 
         // Confirm we can unregister without issues.
@@ -13363,13 +13361,13 @@
         // Since the callback didn't use the per-app network, only the other UID gets a callback.
         // Because the preference specifies no fallback, it does not switch to cellular.
         defaultNetworkCallback.assertNoCallback();
-        otherUidDefaultCallback.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        otherUidDefaultCallback.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
 
         // Now bring down the default network.
         setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, false);
 
         // As this callback was tracking the default, this should now trigger.
-        defaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        defaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         otherUidDefaultCallback.assertNoCallback();
 
         // Confirm we can unregister without issues.
@@ -14483,7 +14481,7 @@
         mWiFiNetworkAgent.disconnect();
         bestMatchingCb.assertNoCallback();
         mCellNetworkAgent.disconnect();
-        bestMatchingCb.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        bestMatchingCb.expect(CallbackEntry.LOST, mCellNetworkAgent);
     }
 
     private UidRangeParcel[] uidRangeFor(final UserHandle handle) {
@@ -14628,7 +14626,7 @@
         if (allowFallback && !connectWorkProfileAgentAhead) {
             assertNoCallbacks(profileDefaultNetworkCallback);
         } else if (!connectWorkProfileAgentAhead) {
-            profileDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+            profileDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
             if (disAllowProfileDefaultNetworkCallback != null) {
                 assertNoCallbacks(disAllowProfileDefaultNetworkCallback);
             }
@@ -14698,10 +14696,10 @@
         // apps on this network see the appropriate callbacks, and the app on the work profile
         // doesn't because it continues to use the enterprise network.
         mCellNetworkAgent.disconnect();
-        mSystemDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        mSystemDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        mDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         if (disAllowProfileDefaultNetworkCallback != null) {
-            disAllowProfileDefaultNetworkCallback.expectCallback(
+            disAllowProfileDefaultNetworkCallback.expect(
                     CallbackEntry.LOST, mCellNetworkAgent);
         }
         profileDefaultNetworkCallback.assertNoCallback();
@@ -14723,7 +14721,7 @@
         // When the agent disconnects, test that the app on the work profile falls back to the
         // default network.
         workAgent.disconnect();
-        profileDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, workAgent);
+        profileDefaultNetworkCallback.expect(CallbackEntry.LOST, workAgent);
         if (allowFallback) {
             profileDefaultNetworkCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
             if (disAllowProfileDefaultNetworkCallback != null) {
@@ -14740,14 +14738,14 @@
         inOrder.verify(mMockNetd).networkDestroy(workAgent.getNetwork().netId);
 
         mCellNetworkAgent.disconnect();
-        mSystemDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        mSystemDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        mDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         if (disAllowProfileDefaultNetworkCallback != null) {
-            disAllowProfileDefaultNetworkCallback.expectCallback(
+            disAllowProfileDefaultNetworkCallback.expect(
                     CallbackEntry.LOST, mCellNetworkAgent);
         }
         if (allowFallback) {
-            profileDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+            profileDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         }
 
         // Waiting for the handler to be idle before checking for networkDestroy is necessary
@@ -14790,7 +14788,7 @@
         // When the agent disconnects, test that the app on the work profile fall back to the
         // default network.
         workAgent2.disconnect();
-        profileDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, workAgent2);
+        profileDefaultNetworkCallback.expect(CallbackEntry.LOST, workAgent2);
         if (disAllowProfileDefaultNetworkCallback != null) {
             assertNoCallbacks(disAllowProfileDefaultNetworkCallback);
         }
@@ -15400,11 +15398,11 @@
         workAgent4.disconnect();
         workAgent5.disconnect();
 
-        appCb1.expectCallback(CallbackEntry.LOST, workAgent1);
-        appCb2.expectCallback(CallbackEntry.LOST, workAgent2);
-        appCb3.expectCallback(CallbackEntry.LOST, workAgent3);
-        appCb4.expectCallback(CallbackEntry.LOST, workAgent4);
-        appCb5.expectCallback(CallbackEntry.LOST, workAgent5);
+        appCb1.expect(CallbackEntry.LOST, workAgent1);
+        appCb2.expect(CallbackEntry.LOST, workAgent2);
+        appCb3.expect(CallbackEntry.LOST, workAgent3);
+        appCb4.expect(CallbackEntry.LOST, workAgent4);
+        appCb5.expect(CallbackEntry.LOST, workAgent5);
 
         appCb1.expectAvailableCallbacksValidated(mCellNetworkAgent);
         appCb2.assertNoCallback();
@@ -15874,7 +15872,7 @@
         }
 
         mEthernetNetworkAgent.disconnect();
-        cb.expectCallback(CallbackEntry.LOST, mEthernetNetworkAgent);
+        cb.expect(CallbackEntry.LOST, mEthernetNetworkAgent);
         mCm.unregisterNetworkCallback(cb);
     }
 
@@ -15944,7 +15942,7 @@
         cb.assertNoCallback(TEST_CALLBACK_TIMEOUT_MS);
 
         mCellNetworkAgent.disconnect();
-        cb.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        cb.expect(CallbackEntry.LOST, mCellNetworkAgent);
         mCm.unregisterNetworkCallback(cb);
 
         // Must be unset before touching the transports, because remove and add transport types
@@ -16254,8 +16252,8 @@
         // callback with wifi network from fallback request.
         mCellNetworkAgent.disconnect();
         mDefaultNetworkCallback.assertNoCallback();
-        cellNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        mTestPackageDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
+        cellNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
+        mTestPackageDefaultNetworkCallback.expect(CallbackEntry.LOST, mCellNetworkAgent);
         mTestPackageDefaultNetworkCallback.expectAvailableCallbacksValidated(mWiFiNetworkAgent);
         assertEquals(mWiFiNetworkAgent.getNetwork(), mCm.getActiveNetworkForUid(TEST_PACKAGE_UID));
         inorder.verify(mMockNetd, times(1)).networkAddUidRangesParcel(wifiConfig);
@@ -16282,7 +16280,7 @@
         // Wifi network disconnected. mTestPackageDefaultNetworkCallback should not receive
         // any callback.
         mWiFiNetworkAgent.disconnect();
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        mDefaultNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         mDefaultNetworkCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
         mTestPackageDefaultNetworkCallback.assertNoCallback();
         assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetworkForUid(TEST_PACKAGE_UID));
@@ -16531,7 +16529,7 @@
         // Disconnect wifi
         mWiFiNetworkAgent.disconnect();
         assertNoCallbacks(mProfileDefaultNetworkCallback, mTestPackageDefaultNetworkCallback);
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        mDefaultNetworkCallback.expect(CallbackEntry.LOST, mWiFiNetworkAgent);
         mDefaultNetworkCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
     }
 
@@ -16767,9 +16765,9 @@
             mWiFiNetworkAgent.setNetworkCapabilities(wifiNc2, true /* sendToConnectivityService */);
             // The only thing changed in this CAPS is the BSSID, which can't be tested for in this
             // test because it's redacted.
-            wifiNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+            wifiNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                     mWiFiNetworkAgent);
-            mDefaultNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+            mDefaultNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                     mWiFiNetworkAgent);
             mWiFiNetworkAgent.setNetworkPortal(TEST_REDIRECT_URL, false /* isStrictMode */);
             mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), false);
@@ -16789,9 +16787,9 @@
 
             // Wi-Fi roaming from wifiNc2 to wifiNc1, and the network now has partial connectivity.
             mWiFiNetworkAgent.setNetworkCapabilities(wifiNc1, true);
-            wifiNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+            wifiNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                     mWiFiNetworkAgent);
-            mDefaultNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+            mDefaultNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                     mWiFiNetworkAgent);
             mWiFiNetworkAgent.setNetworkPartial();
             mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), false);
@@ -16813,7 +16811,7 @@
         // failures after roam are not ignored, this will cause cell to become the default network.
         // If they are ignored, this will not cause a switch until later.
         mWiFiNetworkAgent.setNetworkCapabilities(wifiNc2, true);
-        mDefaultNetworkCallback.expectCallback(CallbackEntry.NETWORK_CAPS_UPDATED,
+        mDefaultNetworkCallback.expect(CallbackEntry.NETWORK_CAPS_UPDATED,
                 mWiFiNetworkAgent);
         mWiFiNetworkAgent.setNetworkInvalid(false /* isStrictMode */);
         mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), false);