Add GLSurfaceView pause/resume tests to CTS.

This change adds two new tests that repeatedly call the onPause() and
onResume() methods of a GLSurfaceView object.  One of the tests has a delay
between the pause/resume and runs fewer iterations, while the other test has no
delay and runs more iterations.

These tests simply verify that the system is able to perform multiple
pause/resume sequences without crashing.

Bug: 2550745

Change-Id: I276db62dc4ff7539392ee55e52ab20057d0b3d1e
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index 4bf8239..6eb1302 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -903,6 +903,9 @@
                        android:resource="@xml/authenticator" />
         </service>
 
+        <activity android:name="android.opengl.cts.GLSurfaceViewStubActivity"
+                  android:label="GLSurfaceViewStub"/>
+
     </application>
 
     <!--Test for PackageManager, please put this at the very beginning-->
diff --git a/tests/src/android/opengl/cts/GLSurfaceViewStubActivity.java b/tests/src/android/opengl/cts/GLSurfaceViewStubActivity.java
new file mode 100644
index 0000000..5a8f310
--- /dev/null
+++ b/tests/src/android/opengl/cts/GLSurfaceViewStubActivity.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.opengl.cts;
+
+import android.app.Activity;
+import android.opengl.GLSurfaceView;
+import android.os.Bundle;
+
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+
+/**
+ * A minimal activity for testing {@link android.opengl.GLSurfaceView}.
+ */
+public class GLSurfaceViewStubActivity extends Activity {
+
+    private static class Renderer implements GLSurfaceView.Renderer {
+
+        public void onDrawFrame(GL10 gl) {
+            // Do nothing.
+        }
+
+        public void onSurfaceChanged(GL10 gl, int width, int height) {
+            // Do nothing.
+        }
+
+        public void onSurfaceCreated(GL10 gl, EGLConfig config) {
+            // Do nothing.
+        }
+    }
+
+    private GLSurfaceView mView;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mView = new GLSurfaceView(this);
+        mView.setRenderer(new Renderer());
+        setContentView(mView);
+    }
+
+    public GLSurfaceView getView() {
+        return mView;
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        mView.onResume();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        mView.onPause();
+    }
+}
diff --git a/tests/tests/graphics/src/android/opengl/cts/GLSurfaceViewTest.java b/tests/tests/graphics/src/android/opengl/cts/GLSurfaceViewTest.java
new file mode 100644
index 0000000..4f55f96
--- /dev/null
+++ b/tests/tests/graphics/src/android/opengl/cts/GLSurfaceViewTest.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.opengl.cts;
+
+import android.opengl.GLSurfaceView;
+import android.test.ActivityInstrumentationTestCase2;
+import android.test.UiThreadTest;
+import android.util.Log;
+
+import dalvik.annotation.TestTargetClass;
+
+/**
+ * Tests for the GLSurfaceView class.
+ */
+@TestTargetClass(GLSurfaceView.class)
+public class GLSurfaceViewTest extends
+        ActivityInstrumentationTestCase2<GLSurfaceViewStubActivity> {
+
+    private static final int NUM_PAUSE_RESUME_ITERATIONS_WITHOUT_DELAY = 1000;
+
+    private static final int NUM_PAUSE_RESUME_ITERATIONS_WITH_DELAY = 100;
+
+    private static final int PAUSE_RESUME_DELAY = 10;
+
+    private static final boolean LOG_PAUSE_RESUME = false;
+
+    private static final String TAG = "GLSurfaceViewTest";
+
+    private GLSurfaceViewStubActivity mActivity;
+
+    public GLSurfaceViewTest() {
+        super("com.android.cts.stub", GLSurfaceViewStubActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mActivity = getActivity();
+    }
+
+    /**
+     * Test repeated pausing and resuming of a GLSurfaceView with a delay
+     * between iterations.
+     * <p>
+     * This test simply verifies that the system is able to perform multiple
+     * pause/resume sequences without crashing. The delay is used to allow
+     * asynchronous events to occur in between the pause and resume operations.
+     * </p>
+     *
+     * @throws InterruptedException
+     */
+    @UiThreadTest
+    public void testPauseResumeWithDelay() throws InterruptedException {
+        GLSurfaceView view = mActivity.getView();
+        for (int i = 0; i < NUM_PAUSE_RESUME_ITERATIONS_WITH_DELAY; i++) {
+            Thread.sleep(PAUSE_RESUME_DELAY);
+            if (LOG_PAUSE_RESUME) {
+                Log.w(TAG, "Pause/Resume (w/ delay) step " + i + " - pause");
+            }
+            view.onPause();
+            Thread.sleep(PAUSE_RESUME_DELAY);
+            if (LOG_PAUSE_RESUME) {
+                Log.w(TAG, "Pause/Resume (w/ delay) step " + i + " - resume");
+            }
+            view.onResume();
+        }
+    }
+
+    /**
+     * Test repeated pausing and resuming of a GLSurfaceView.
+     * <p>
+     * This test simply verifies that the system is able to perform multiple
+     * pause/resume sequences without crashing. No delay is used so that a
+     * larger number of iterations can be done in a short amount of time.
+     * </p>
+     */
+    @UiThreadTest
+    public void testPauseResumeWithoutDelay() {
+        GLSurfaceView view = mActivity.getView();
+        for (int i = 0; i < NUM_PAUSE_RESUME_ITERATIONS_WITHOUT_DELAY; i++) {
+            if (LOG_PAUSE_RESUME) {
+                Log.w(TAG, "Pause/Resume (no delay) step " + i + " - pause");
+            }
+            view.onPause();
+            if (LOG_PAUSE_RESUME) {
+                Log.w(TAG, "Pause/Resume (no delay) step " + i + " - resume");
+            }
+            view.onResume();
+        }
+    }
+}