| /* |
| * Copyright (C) 2017 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.app.cts; |
| |
| import android.app.Instrumentation; |
| import android.app.stubs.DisplayTestActivity; |
| import android.app.stubs.OrientationTestUtils; |
| import android.test.ActivityInstrumentationTestCase2; |
| import android.view.Display; |
| |
| /** |
| * Tests to verify functionality of {@link Display}. |
| */ |
| public class DisplayTest extends ActivityInstrumentationTestCase2<DisplayTestActivity> { |
| private Instrumentation mInstrumentation; |
| private DisplayTestActivity mActivity; |
| |
| public DisplayTest() { |
| super("android.app.stubs", DisplayTestActivity.class); |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| mInstrumentation = getInstrumentation(); |
| mActivity = getActivity(); |
| } |
| |
| /** |
| * Tests that the underlying {@link android.view.DisplayAdjustments} in {@link Display} updates. |
| * The method {@link DisplayTestActivity#getDisplay()} fetches the Display directly from the |
| * {@link android.view.WindowManager}. A display fetched before the rotation should have the |
| * updated adjustments after a rotation. |
| */ |
| public void testRotation() throws Throwable { |
| // Get a {@link Display} instance before rotation. |
| final Display origDisplay = mActivity.getDisplay(); |
| |
| // Capture the originally reported width and heights |
| final int origWidth = origDisplay.getWidth(); |
| final int origHeight = origDisplay.getHeight(); |
| |
| // Change orientation |
| OrientationTestUtils.switchOrientation(mActivity, mInstrumentation); |
| |
| // Get a {@link Display} instance after rotation. |
| final Display updatedDisplay = mActivity.getDisplay(); |
| |
| // Ensure that the width and height of the original instance no longer are the same. Note |
| // that this will be false if the device width and height are identical. |
| assertFalse("width from original display instance should have changed", |
| origWidth == origDisplay.getWidth()); |
| assertFalse("height from original display instance should have changed", |
| origHeight == origDisplay.getHeight()); |
| |
| // Ensure that the width and height of the original instance have been updated to match the |
| // values that would be found in a new instance. |
| assertTrue("width from original display instance should match current", |
| origDisplay.getWidth() == updatedDisplay.getWidth()); |
| assertTrue("height from original display instance should match current", |
| origDisplay.getHeight() == updatedDisplay.getHeight()); |
| } |
| } |