Android RendererCommon: Add unittests for getDisplaySize()

talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java

Index: talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
diff --git a/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java b/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
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index 0000000000000000000000000000000000000000..e07f454ddae1ffb0d6a8a22b47313706e2ab4408
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+++ b/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
@@ -0,0 +1,90 @@
+/*
+ * libjingle
+ * Copyright 2015 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.webrtc;
+
+import android.test.ActivityTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import android.graphics.Point;
+
+import static org.webrtc.RendererCommon.ScalingType.*;
+import static org.webrtc.RendererCommon.getDisplaySize;
+
+public class RendererCommonTest extends ActivityTestCase {
+  @SmallTest
+  static public void testDisplaySizeNoFrame() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 0.0f, 0, 0), new Point(0, 0));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 0.0f, 0, 0), new Point(0, 0));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 0.0f, 0, 0), new Point(0, 0));
+  }
+
+  @SmallTest
+  static public void testDisplaySizeDegenerateAspectRatio() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 0.0f, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 0.0f, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 0.0f, 1280, 720), new Point(1280, 720));
+  }
+
+  @SmallTest
+  static public void testZeroDisplaySize() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 16.0f / 9, 0, 0), new Point(0, 0));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 16.0f / 9, 0, 0), new Point(0, 0));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 16.0f / 9, 0, 0), new Point(0, 0));
+  }
+
+  @SmallTest
+  static public void testDisplaySizePerfectFit() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 16.0f / 9, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 16.0f / 9, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 16.0f / 9, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 9.0f / 16, 720, 1280), new Point(720, 1280));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 9.0f / 16, 720, 1280), new Point(720, 1280));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 9.0f / 16, 720, 1280), new Point(720, 1280));
+  }
+
+  @SmallTest
+  static public void testLandscapeVideoInPortraitDisplay() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 16.0f / 9, 720, 1280), new Point(720, 405));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 16.0f / 9, 720, 1280), new Point(720, 1280));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 16.0f / 9, 720, 1280), new Point(720, 720));
+  }
+
+  @SmallTest
+  static public void testPortraitVideoInLandscapeDisplay() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 9.0f / 16, 1280, 720), new Point(405, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 9.0f / 16, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 9.0f / 16, 1280, 720), new Point(720, 720));
+  }
+
+  @SmallTest
+  static public void testFourToThreeVideoInSixteenToNineDisplay() {
+    assertEquals(getDisplaySize(SCALE_ASPECT_FIT, 4.0f / 3, 1280, 720), new Point(960, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_FILL, 4.0f / 3, 1280, 720), new Point(1280, 720));
+    assertEquals(getDisplaySize(SCALE_ASPECT_BALANCED, 4.0f / 3, 1280, 720), new Point(1280, 720));
+  }
+}