Add test for DirectRTCClient in AppRTC Demo for Android

webrtc/examples/androidjunit/src/org/appspot/apprtc/DirectRTCClientTest.java

Index: webrtc/examples/androidjunit/src/org/appspot/apprtc/DirectRTCClientTest.java
diff --git a/webrtc/examples/androidjunit/src/org/appspot/apprtc/DirectRTCClientTest.java b/webrtc/examples/androidjunit/src/org/appspot/apprtc/DirectRTCClientTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..ee3b7c4656a369d46fb7f18b15af276aae85d687
--- /dev/null
+++ b/webrtc/examples/androidjunit/src/org/appspot/apprtc/DirectRTCClientTest.java
@@ -0,0 +1,103 @@
+/*
+ *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package org.appspot.apprtc;
+
+import android.util.Log;
+
+import org.appspot.apprtc.util.RobolectricLooperExecutor;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.webrtc.IceCandidate;
+import org.webrtc.SessionDescription;
+
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.isNotNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoMoreInteractions;
+
+/**
+ * Test for DirectRTCClient. Test is very simple and only tests the overall sanity of the class
+ * behaviour.
+ */
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = Config.NONE)
+public class DirectRTCClientTest {
+  private static final String ROOM_URL = "";
+  private static final boolean LOOPBACK = false;
+
+  private static final String DUMMY_SDP_MID = "sdpMid";
+  private static final String DUMMY_SDP = "sdp";
+
+  public static final int SERVER_WAIT = 10;
+  public static final int NETWORK_TIMEOUT = 100;
+
+  private DirectRTCClient client;
+  private DirectRTCClient server;
+
+  AppRTCClient.SignalingEvents clientEvents;
+  AppRTCClient.SignalingEvents serverEvents;
+
+  @Before
+  public void setUp() {
+    clientEvents = mock(AppRTCClient.SignalingEvents.class);
+    serverEvents = mock(AppRTCClient.SignalingEvents.class);
+
+    client = new DirectRTCClient(clientEvents, new RobolectricLooperExecutor());
+    server = new DirectRTCClient(serverEvents, new RobolectricLooperExecutor());
+  }
+
+  @Test
+  public void testDirectRTCClient() {
+    server.connectToRoom(new AppRTCClient.RoomConnectionParameters(ROOM_URL, "0.0.0.0", LOOPBACK));
+    try {
+      Thread.sleep(SERVER_WAIT);
+    } catch (InterruptedException e) {
+      fail(e.getMessage());
+    }
+    client.connectToRoom(
+        new AppRTCClient.RoomConnectionParameters(ROOM_URL, "127.0.0.1", LOOPBACK));
+    verify(serverEvents, timeout(NETWORK_TIMEOUT))
+        .onConnectedToRoom(any(AppRTCClient.SignalingParameters.class));
+
+    SessionDescription offerSdp = new SessionDescription(SessionDescription.Type.OFFER, DUMMY_SDP);
+    server.sendOfferSdp(offerSdp);
+    verify(clientEvents, timeout(NETWORK_TIMEOUT))
+        .onConnectedToRoom(any(AppRTCClient.SignalingParameters.class));
+
+    SessionDescription answerSdp
+        = new SessionDescription(SessionDescription.Type.ANSWER, DUMMY_SDP);
+    client.sendAnswerSdp(answerSdp);
+    verify(serverEvents, timeout(NETWORK_TIMEOUT))
+        .onRemoteDescription(isNotNull(SessionDescription.class));
+
+    IceCandidate candidate = new IceCandidate(DUMMY_SDP_MID, 0, DUMMY_SDP);
+    server.sendLocalIceCandidate(candidate);
+    verify(clientEvents, timeout(NETWORK_TIMEOUT))
+        .onRemoteIceCandidate(isNotNull(IceCandidate.class));
+
+    client.sendLocalIceCandidate(candidate);
+    verify(serverEvents, timeout(NETWORK_TIMEOUT))
+        .onRemoteIceCandidate(isNotNull(IceCandidate.class));
+
+    client.disconnectFromRoom();
+    verify(clientEvents, timeout(NETWORK_TIMEOUT)).onChannelClose();
+    verify(serverEvents, timeout(NETWORK_TIMEOUT)).onChannelClose();
+
+    verifyNoMoreInteractions(clientEvents);
+    verifyNoMoreInteractions(serverEvents);
+  }
+}