New unit tests for Android Cast code (using Robolectric).

chrome/android/junit/src/org/chromium/chrome/browser/media/remote/RemoteVideoInfoTest.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/media/remote/RemoteVideoInfoTest.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/media/remote/RemoteVideoInfoTest.java b/chrome/android/junit/src/org/chromium/chrome/browser/media/remote/RemoteVideoInfoTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..a539b38da9ed79c8c8e5789c0b0dce28a5f99fc3
--- /dev/null
+++ b/chrome/android/junit/src/org/chromium/chrome/browser/media/remote/RemoteVideoInfoTest.java
@@ -0,0 +1,96 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.media.remote;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertThat;
+
+import org.chromium.testing.local.LocalRobolectricTestRunner;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+/**
+ * Unit tests (run on host) for {@link RemoteVideoInfo}.
+ */
+@RunWith(LocalRobolectricTestRunner.class)
+@Config(manifest = Config.NONE)
+public class RemoteVideoInfoTest {
+
+    /**
+     * Test method for {@link RemoteVideoInfo#hashCode()}.
+     */
+    @Test
+    public void testHashCode() {
+        RemoteVideoInfo i1 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED,
+                50, null);
+        int h1 = i1.hashCode();
+
+        RemoteVideoInfo i2 = new RemoteVideoInfo(i1);
+        assertThat("Copying RemoteVideoInfo preserves the hash code", i2.hashCode(), equalTo(h1));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED,
+                50, null);
+        assertThat("Identical RemoteVideoInfos the same hash code", i2.hashCode(), equalTo(h1));
+
+        int ho = new Object().hashCode();
+        assertThat("Objects of different types are unequal to RemoteVideoInfos", i1.hashCode(),
+                not(equalTo(ho)));
+
+        i2 = new RemoteVideoInfo("Test1", 100, RemoteVideoInfo.PlayerState.STOPPED, 50, null);
+        assertThat("Changing title changes hash code", i2.hashCode(), not(equalTo(h1)));
+
+        i2 = new RemoteVideoInfo("Test", 200, RemoteVideoInfo.PlayerState.STOPPED, 50, null);
+        assertThat("Changing duration changes hash code", i2.hashCode(), not(equalTo(h1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.INVALIDATED, 50, null);
+        assertThat("Changing state changes hash code", i2.hashCode(), not(equalTo(h1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED, 70, null);
+        assertThat("Changing current time changes hash code", i2.hashCode(), not(equalTo(h1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED, 50, "Error");
+        assertThat("Changing error changes hash code", i2.hashCode(), not(equalTo(h1)));
+    }
+
+    /**
+     * Test method for
+     * {@link RemoteVideoInfo#equals(java.lang.Object)}.
+     */
+    @Test
+    public void testEqualsObject() {
+        RemoteVideoInfo i1 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED,
+                50, null);
+        assertThat("A RemoteVideoInfo is equal to itself", i1, equalTo(i1));
+
+        RemoteVideoInfo i2 = new RemoteVideoInfo(i1);
+        assertThat("A RemoteVideoInfo is equal to its copy", i2, equalTo(i1));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED,
+                50, null);
+        assertThat("identical RemoteVideoInfos are equal", i2, equalTo(i1));
+
+        Object o = new Object();
+        assertThat("Objects of different types are unequal to RemoteVideoInfos", i1,
+                not(equalTo(o)));
+
+        i2 = new RemoteVideoInfo("Test1", 100, RemoteVideoInfo.PlayerState.STOPPED, 50, null);
+        assertThat("Changing title makes RemoteVideoInfos unequal", i2, not(equalTo(i1)));
+
+        i2 = new RemoteVideoInfo("Test", 200, RemoteVideoInfo.PlayerState.STOPPED, 50, null);
+        assertThat("Changing duration makes RemoteVideoInfos unequal", i2, not(equalTo(i1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.INVALIDATED, 50, null);
+        assertThat("Changing state makes RemoteVideoInfos unequal", i2, not(equalTo(i1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED, 70, null);
+        assertThat("Changing current time makes RemoteVideoInfos unequal", i2, not(equalTo(i1)));
+
+        i2 = new RemoteVideoInfo("Test", 100, RemoteVideoInfo.PlayerState.STOPPED, 50, "Error");
+        assertThat("Changing error makes RemoteVideoInfos unequal", i2, not(equalTo(i1)));
+    }
+
+}