| /* |
| * Copyright (C) 2009 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.util.cts; |
| |
| import android.content.Context; |
| import android.test.AndroidTestCase; |
| import android.util.DisplayMetrics; |
| import android.view.Display; |
| import android.view.WindowManager; |
| import dalvik.annotation.TestLevel; |
| import dalvik.annotation.TestTargetClass; |
| import dalvik.annotation.TestTargetNew; |
| import dalvik.annotation.TestTargets; |
| |
| @TestTargetClass(DisplayMetrics.class) |
| public class DisplayMetricsTest extends AndroidTestCase { |
| private Display initDisplay() { |
| WindowManager windowManager = (WindowManager) getContext() |
| .getSystemService(Context.WINDOW_SERVICE); |
| assertNotNull(windowManager); |
| Display display = windowManager.getDefaultDisplay(); |
| assertNotNull(display); |
| return display; |
| } |
| |
| @TestTargets({ |
| @TestTargetNew( |
| level = TestLevel.TODO, |
| notes = "Test constructor(s) of {@link DisplayMetrics}", |
| method = "DisplayMetrics", |
| args = {} |
| ), |
| @TestTargetNew( |
| level = TestLevel.TODO, |
| notes = "Test method: setTo", |
| method = "setTo", |
| args = {DisplayMetrics.class} |
| ), |
| @TestTargetNew( |
| level = TestLevel.TODO, |
| notes = "Test method: setToDefaults", |
| method = "setToDefaults", |
| args = {} |
| ) |
| }) |
| public void testDisplayMetricsOp() { |
| DisplayMetrics outMetrics = new DisplayMetrics(); |
| outMetrics.setToDefaults(); |
| assertEquals(0, outMetrics.widthPixels); |
| assertEquals(0, outMetrics.heightPixels); |
| // according to Android enmulator doc UI -scale confine density should between 0.1 to 3 |
| assertTrue((0.1 < outMetrics.density) && (outMetrics.density < 3)); |
| assertTrue((0.1 < outMetrics.scaledDensity) && (outMetrics.scaledDensity < 3)); |
| assertTrue(0 < outMetrics.xdpi); |
| assertTrue(0 < outMetrics.ydpi); |
| |
| Display display = initDisplay(); |
| display.getMetrics(outMetrics); |
| DisplayMetrics metrics = new DisplayMetrics(); |
| metrics.setTo(outMetrics); |
| assertEquals(display.getHeight(), metrics.heightPixels); |
| assertEquals(display.getWidth(), metrics.widthPixels); |
| // according to Android enmulator doc UI -scale confine density should between 0.1 to 3 |
| assertTrue((0.1 < metrics.density) && (metrics.density < 3)); |
| assertTrue((0.1 < metrics.scaledDensity) && (metrics.scaledDensity < 3)); |
| assertTrue(0 < metrics.xdpi); |
| assertTrue(0 < metrics.ydpi); |
| } |
| } |