Test to ensure a toast doesn't affect app standby

Put an app in standby, make it show a toast and ensure
that it doesn't come out of standby. This is to test
for a bug fix for the same behavior.

Bug: 31544592
Test: cts-tradefed run commandAndExit cts -m CtsHostsideNetworkTests -t com.android.cts.net.HostsideRestrictBackgroundNetworkTests#testAppIdle_toast
Change-Id: I796ecde8e346c308a27969d873e3ce384414fee3

tests/cts/hostside/app/src/com/android/cts/net/hostside/AbstractAppIdleTestCase.java

@@ -16,6 +16,7 @@
 
 package com.android.cts.net.hostside;
 
+import android.os.SystemClock;
 import android.util.Log;
 
 /**
@@ -162,4 +163,16 @@ abstract class AbstractAppIdleTestCase extends AbstractRestrictBackgroundNetwork
         turnBatteryOff();
         assertBackgroundNetworkAccess(true);
     }
+
+    public void testAppIdle_toast() throws Exception {
+        if (!isSupported()) return;
+
+        setAppIdle(true);
+        assertAppIdle(true);
+        assertEquals("Shown", showToast());
+        assertAppIdle(true);
+        // Wait for a couple of seconds for the toast to actually be shown
+        SystemClock.sleep(2000);
+        assertAppIdle(true);
+    }
 }

tests/cts/hostside/app/src/com/android/cts/net/hostside/AbstractRestrictBackgroundNetworkTestCase.java

@@ -64,6 +64,8 @@ abstract class AbstractRestrictBackgroundNetworkTestCase extends Instrumentation
             "com.android.cts.net.hostside.app2.action.RECEIVER_READY";
     static final String ACTION_SEND_NOTIFICATION =
             "com.android.cts.net.hostside.app2.action.SEND_NOTIFICATION";
+    static final String ACTION_SHOW_TOAST =
+            "com.android.cts.net.hostside.app2.action.SHOW_TOAST";
     private static final String EXTRA_ACTION = "com.android.cts.net.hostside.app2.extra.ACTION";
     private static final String EXTRA_RECEIVER_NAME =
             "com.android.cts.net.hostside.app2.extra.RECEIVER_NAME";
@@ -782,6 +784,17 @@ abstract class AbstractRestrictBackgroundNetworkTestCase extends Instrumentation
         mContext.sendBroadcast(intent);
     }
 
+    protected String showToast() {
+        final Intent intent = new Intent(ACTION_SHOW_TOAST);
+        intent.setPackage(TEST_APP2_PKG);
+        Log.d(TAG, "Sending request to show toast");
+        try {
+            return sendOrderedBroadcast(intent, 3 * SECOND_IN_MS);
+        } catch (Exception e) {
+            return "";
+        }
+    }
+
     private String toString(int status) {
         switch (status) {
             case RESTRICT_BACKGROUND_STATUS_DISABLED:

tests/cts/hostside/app2/AndroidManifest.xml

@@ -46,6 +46,7 @@
                 <action android:name="com.android.cts.net.hostside.app2.action.GET_RESTRICT_BACKGROUND_STATUS" />
                 <action android:name="com.android.cts.net.hostside.app2.action.CHECK_NETWORK" />
                 <action android:name="com.android.cts.net.hostside.app2.action.SEND_NOTIFICATION" />
+                <action android:name="com.android.cts.net.hostside.app2.action.SHOW_TOAST" />
                 </intent-filter>
         </receiver>
     </application>

tests/cts/hostside/app2/src/com/android/cts/net/hostside/app2/Common.java

@@ -38,6 +38,8 @@ public final class Common {
             "com.android.cts.net.hostside.app2.action.FINISH_ACTIVITY";
     static final String ACTION_SEND_NOTIFICATION =
             "com.android.cts.net.hostside.app2.action.SEND_NOTIFICATION";
+    static final String ACTION_SHOW_TOAST =
+            "com.android.cts.net.hostside.app2.action.SHOW_TOAST";
     static final String EXTRA_ACTION = "com.android.cts.net.hostside.app2.extra.ACTION";
     static final String EXTRA_RECEIVER_NAME =
             "com.android.cts.net.hostside.app2.extra.RECEIVER_NAME";

tests/cts/hostside/app2/src/com/android/cts/net/hostside/app2/MyBroadcastReceiver.java

@@ -23,6 +23,7 @@ import static com.android.cts.net.hostside.app2.Common.ACTION_GET_COUNTERS;
 import static com.android.cts.net.hostside.app2.Common.ACTION_GET_RESTRICT_BACKGROUND_STATUS;
 import static com.android.cts.net.hostside.app2.Common.ACTION_RECEIVER_READY;
 import static com.android.cts.net.hostside.app2.Common.ACTION_SEND_NOTIFICATION;
+import static com.android.cts.net.hostside.app2.Common.ACTION_SHOW_TOAST;
 import static com.android.cts.net.hostside.app2.Common.EXTRA_ACTION;
 import static com.android.cts.net.hostside.app2.Common.EXTRA_NOTIFICATION_ID;
 import static com.android.cts.net.hostside.app2.Common.EXTRA_NOTIFICATION_TYPE;
@@ -51,6 +52,7 @@ import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.os.Bundle;
 import android.util.Log;
+import android.widget.Toast;
 
 import java.net.HttpURLConnection;
 import java.net.URL;
@@ -104,6 +106,9 @@ public class MyBroadcastReceiver extends BroadcastReceiver {
             case ACTION_SEND_NOTIFICATION:
                 sendNotification(context, intent);
                 break;
+            case ACTION_SHOW_TOAST:
+                showToast(context);
+                break;
             default:
                 Log.e(TAG, "received unexpected action: " + action);
         }
@@ -302,4 +307,9 @@ public class MyBroadcastReceiver extends BroadcastReceiver {
         ((NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE))
             .notify(notificationId, notification);
     }
+
+    private void showToast(Context context) {
+        Toast.makeText(context, "Toast from CTS test", Toast.LENGTH_SHORT).show();
+        setResultData("Shown");
+    }
 }

tests/cts/hostside/src/com/android/cts/net/HostsideRestrictBackgroundNetworkTests.java

@@ -181,6 +181,12 @@ public class HostsideRestrictBackgroundNetworkTests extends HostsideNetworkTestC
                 "testAppIdleNetworkAccess_whenCharging");
     }
 
+    public void testAppIdle_toast() throws Exception {
+        // Check that showing a toast doesn't bring an app out of standby
+        runDeviceTests(TEST_PKG, TEST_PKG + ".AppIdleNonMeteredTest",
+                "testAppIdle_toast");
+    }
+
     /********************
      * Doze Mode tests. *
      ********************/