Increase ConnDiagsTest timeout for end-to-end test.

This change increases the delay allowed for administratorUid updates to
reach ConnectivityService in #testRegisterCallbackWithCarrierPrivileges.
Currently, there is no deterministic signal that can be used to wait for
this change, so Thread#sleep is required. This value is increased
because the previous delay did not give enough time for the
administratorUid change to reach CS, causing test flake.

Bug: 159718782
Test: atest android.net.cts.ConnectivityDiagnosticsManagerTest
Original-Change: https://android-review.googlesource.com/1349068
Merged-In: I36347f6d52e3ce1bd30e3f74c35f4ecd15c8c65e
Change-Id: I36347f6d52e3ce1bd30e3f74c35f4ecd15c8c65e
diff --git a/tests/tests/net/src/android/net/cts/ConnectivityDiagnosticsManagerTest.java b/tests/tests/net/src/android/net/cts/ConnectivityDiagnosticsManagerTest.java
index 34ca9a4..8f42f79 100644
--- a/tests/tests/net/src/android/net/cts/ConnectivityDiagnosticsManagerTest.java
+++ b/tests/tests/net/src/android/net/cts/ConnectivityDiagnosticsManagerTest.java
@@ -107,6 +107,7 @@
     private static final int UNKNOWN_DETECTION_METHOD = 4;
     private static final int FILTERED_UNKNOWN_DETECTION_METHOD = 0;
     private static final int CARRIER_CONFIG_CHANGED_BROADCAST_TIMEOUT = 5000;
+    private static final int DELAY_FOR_ADMIN_UIDS_MILLIS = 2000;
 
     private static final Executor INLINE_EXECUTOR = x -> x.run();
 
@@ -268,7 +269,8 @@
         // CS does not trigger NetworkCallback#onCapabilitiesChanged as changing the
         // administratorUids is not a publicly visible change. In lieu of a better signal to
         // detministically wait for, use Thread#sleep here.
-        Thread.sleep(500);
+        // TODO(b/157949581): replace this Thread#sleep with a deterministic signal
+        Thread.sleep(DELAY_FOR_ADMIN_UIDS_MILLIS);
 
         final TestConnectivityDiagnosticsCallback connDiagsCallback =
                 createAndRegisterConnectivityDiagnosticsCallback(CELLULAR_NETWORK_REQUEST);