Merge "Make the MTU tests more realistic."
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index bd8ac06..058c204 100755
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -17577,18 +17577,77 @@
});
}
+ private void verifyMtuSetOnWifiInterface(int mtu) throws Exception {
+ verify(mMockNetd, times(1)).interfaceSetMtu(WIFI_IFNAME, mtu);
+ }
+
+ private void verifyMtuNeverSetOnWifiInterface() throws Exception {
+ verify(mMockNetd, never()).interfaceSetMtu(eq(WIFI_IFNAME), anyInt());
+ }
+
@Test
- public void testSendLinkPropertiesSetInterfaceMtu() throws Exception {
- final int mtu = 1327;
+ public void testSendLinkPropertiesSetInterfaceMtuBeforeConnect() throws Exception {
+ final int mtu = 1281;
LinkProperties lp = new LinkProperties();
lp.setInterfaceName(WIFI_IFNAME);
lp.setMtu(mtu);
mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
mWiFiAgent.sendLinkProperties(lp);
-
waitForIdle();
- verify(mMockNetd).interfaceSetMtu(eq(WIFI_IFNAME), eq(mtu));
+ verifyMtuSetOnWifiInterface(mtu);
+ reset(mMockNetd);
+
+ mWiFiAgent.connect(false /* validated */);
+ // The MTU is always (re-)applied when the network connects.
+ verifyMtuSetOnWifiInterface(mtu);
+ }
+
+ @Test
+ public void testSendLinkPropertiesUpdateInterfaceMtuBeforeConnect() throws Exception {
+ final int mtu = 1327;
+ LinkProperties lp = new LinkProperties();
+ lp.setInterfaceName(WIFI_IFNAME);
+ lp.setMtu(mtu);
+
+ // Registering an agent with an MTU doesn't set the MTU...
+ mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
+ waitForIdle();
+ verifyMtuNeverSetOnWifiInterface();
+ reset(mMockNetd);
+
+ // ... but prevents future updates with the same MTU from setting the MTU.
+ mWiFiAgent.sendLinkProperties(lp);
+ waitForIdle();
+ verifyMtuNeverSetOnWifiInterface();
+
+ // Updating with a different MTU does work.
+ lp.setMtu(mtu + 1);
+ mWiFiAgent.sendLinkProperties(lp);
+ waitForIdle();
+ verifyMtuSetOnWifiInterface(mtu + 1);
+ reset(mMockNetd);
+
+ mWiFiAgent.connect(false /* validated */);
+ // The MTU is always (re-)applied when the network connects.
+ verifyMtuSetOnWifiInterface(mtu + 1);
+ }
+
+ @Test
+ public void testSendLinkPropertiesUpdateInterfaceMtuAfterConnect() throws Exception {
+ final int mtu = 1327;
+ LinkProperties lp = new LinkProperties();
+ lp.setInterfaceName(WIFI_IFNAME);
+ lp.setMtu(mtu);
+
+ mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
+ mWiFiAgent.connect(false /* validated */);
+ verifyMtuNeverSetOnWifiInterface();
+
+ mWiFiAgent.sendLinkProperties(lp);
+ waitForIdle();
+ // The MTU is always (re-)applied when the network connects.
+ verifyMtuSetOnWifiInterface(mtu);
}
@Test
@@ -17599,14 +17658,15 @@
lp.setMtu(mtu);
mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
+ mWiFiAgent.connect(false /* validated */);
+ verifyMtuSetOnWifiInterface(mtu);
+ reset(mMockNetd);
LinkProperties lp2 = new LinkProperties(lp);
lp2.setMtu(mtu2);
-
mWiFiAgent.sendLinkProperties(lp2);
-
waitForIdle();
- verify(mMockNetd).interfaceSetMtu(eq(WIFI_IFNAME), eq(mtu2));
+ verifyMtuSetOnWifiInterface(mtu2);
}
@Test
@@ -17617,10 +17677,13 @@
lp.setMtu(mtu);
mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
- mWiFiAgent.sendLinkProperties(new LinkProperties(lp));
+ mWiFiAgent.connect(false /* validated */);
+ verifyMtuSetOnWifiInterface(mtu);
+ reset(mMockNetd);
+ mWiFiAgent.sendLinkProperties(new LinkProperties(lp));
waitForIdle();
- verify(mMockNetd, never()).interfaceSetMtu(eq(WIFI_IFNAME), anyInt());
+ verifyMtuNeverSetOnWifiInterface();
}
@Test
@@ -17631,15 +17694,15 @@
lp.setMtu(mtu);
mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
+ mWiFiAgent.connect(false /* validated */);
+ verifyMtuSetOnWifiInterface(mtu);
+ reset(mMockNetd);
- LinkProperties lp2 = new LinkProperties();
- assertNull(lp2.getInterfaceName());
- lp2.setMtu(mtu);
-
+ LinkProperties lp2 = new LinkProperties(lp);
+ lp2.setInterfaceName(null);
mWiFiAgent.sendLinkProperties(new LinkProperties(lp2));
-
waitForIdle();
- verify(mMockNetd, never()).interfaceSetMtu(any(), anyInt());
+ verifyMtuNeverSetOnWifiInterface();
}
@Test
@@ -17650,16 +17713,18 @@
lp.setMtu(mtu);
mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, lp);
+ mWiFiAgent.connect(false /* validated */);
+ verifyMtuSetOnWifiInterface(mtu);
+ reset(mMockNetd);
final String ifaceName2 = WIFI_IFNAME + "_2";
- LinkProperties lp2 = new LinkProperties();
+ LinkProperties lp2 = new LinkProperties(lp);
lp2.setInterfaceName(ifaceName2);
- lp2.setMtu(mtu);
mWiFiAgent.sendLinkProperties(new LinkProperties(lp2));
-
waitForIdle();
- verify(mMockNetd).interfaceSetMtu(eq(ifaceName2), eq(mtu));
+ verify(mMockNetd, times(1)).interfaceSetMtu(eq(ifaceName2), eq(mtu));
+ verifyMtuNeverSetOnWifiInterface();
}
@Test