Merge "Flake fix : Wait setting applied before returning from setConfig"
diff --git a/tests/cts/net/src/android/net/cts/NetworkValidationTestUtil.kt b/tests/cts/net/src/android/net/cts/NetworkValidationTestUtil.kt
index dde14ac..391d03a 100644
--- a/tests/cts/net/src/android/net/cts/NetworkValidationTestUtil.kt
+++ b/tests/cts/net/src/android/net/cts/NetworkValidationTestUtil.kt
@@ -19,12 +19,20 @@
import android.Manifest
import android.net.util.NetworkStackUtils
import android.provider.DeviceConfig
+import android.provider.DeviceConfig.NAMESPACE_CONNECTIVITY
+import android.util.Log
import com.android.testutils.runAsShell
+import com.android.testutils.tryTest
+import java.util.concurrent.CompletableFuture
+import java.util.concurrent.Executor
+import java.util.concurrent.TimeUnit
/**
* Collection of utility methods for configuring network validation.
*/
internal object NetworkValidationTestUtil {
+ val TAG = NetworkValidationTestUtil::class.simpleName
+ const val TIMEOUT_MS = 20_000L
/**
* Clear the test network validation URLs.
@@ -59,10 +67,52 @@
@JvmStatic fun setUrlExpirationDeviceConfig(timestamp: Long?) =
setConfig(NetworkStackUtils.TEST_URL_EXPIRATION_TIME, timestamp?.toString())
- private fun setConfig(configKey: String, value: String?) {
- runAsShell(Manifest.permission.WRITE_DEVICE_CONFIG) {
- DeviceConfig.setProperty(
- DeviceConfig.NAMESPACE_CONNECTIVITY, configKey, value, false /* makeDefault */)
+ private fun setConfig(configKey: String, value: String?): String? {
+ Log.i(TAG, "Setting config \"$configKey\" to \"$value\"")
+ val readWritePermissions = arrayOf(
+ Manifest.permission.READ_DEVICE_CONFIG,
+ Manifest.permission.WRITE_DEVICE_CONFIG)
+
+ val existingValue = runAsShell(*readWritePermissions) {
+ DeviceConfig.getProperty(NAMESPACE_CONNECTIVITY, configKey)
+ }
+ if (existingValue == value) {
+ // Already the correct value. There may be a race if a change is already in flight,
+ // but if multiple threads update the config there is no way to fix that anyway.
+ Log.i(TAG, "\$configKey\" already had value \"$value\"")
+ return value
+ }
+
+ val future = CompletableFuture<String>()
+ val listener = DeviceConfig.OnPropertiesChangedListener {
+ // The listener receives updates for any change to any key, so don't react to
+ // changes that do not affect the relevant key
+ if (!it.keyset.contains(configKey)) return@OnPropertiesChangedListener
+ if (it.getString(configKey, null) == value) {
+ future.complete(value)
+ }
+ }
+
+ return tryTest {
+ runAsShell(*readWritePermissions) {
+ DeviceConfig.addOnPropertiesChangedListener(
+ NAMESPACE_CONNECTIVITY,
+ inlineExecutor,
+ listener)
+ DeviceConfig.setProperty(
+ NAMESPACE_CONNECTIVITY,
+ configKey,
+ value,
+ false /* makeDefault */)
+ // Don't drop the permission until the config is applied, just in case
+ future.get(TIMEOUT_MS, TimeUnit.MILLISECONDS)
+ }.also {
+ Log.i(TAG, "Config \"$configKey\" successfully set to \"$value\"")
+ }
+ } cleanup {
+ DeviceConfig.removeOnPropertiesChangedListener(listener)
}
}
-}
\ No newline at end of file
+
+ private val inlineExecutor get() = Executor { r -> r.run() }
+}
diff --git a/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java b/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
index 05e40f9..ce873f7 100644
--- a/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
+++ b/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
@@ -476,6 +476,7 @@
NetworkCallback callback = new NetworkCallback() {
@Override
public void onLinkPropertiesChanged(Network n, LinkProperties lp) {
+ Log.i(TAG, "Link properties of network " + n + " changed to " + lp);
if (requiresValidatedServer && lp.getValidatedPrivateDnsServers().isEmpty()) {
return;
}