tests/tests/app/src/android/app/cts/WallpaperManagerTest.java

/*
 * Copyright (C) 2011 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.WallpaperManager;
import android.content.Context;
import android.test.AndroidTestCase;
import android.view.Display;
import android.view.WindowManager;

public class WallpaperManagerTest extends AndroidTestCase {

    private WallpaperManager mWallpaperManager;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mWallpaperManager = WallpaperManager.getInstance(mContext);
    }

    public void testSuggestDesiredDimensions() {
        int max = getMaximumSizeDimension();
        int w = max * 3;
        int h = max * 2;

        mWallpaperManager.suggestDesiredDimensions(max / 2, max / 2);
        assertEquals(max, mWallpaperManager.getDesiredMinimumWidth());
        assertEquals(max, mWallpaperManager.getDesiredMinimumHeight());

        mWallpaperManager.suggestDesiredDimensions(w, h);
        assertEquals(w, mWallpaperManager.getDesiredMinimumWidth());
        assertEquals(h, mWallpaperManager.getDesiredMinimumHeight());

        mWallpaperManager.suggestDesiredDimensions(max / 2, h);
        assertEquals(max, mWallpaperManager.getDesiredMinimumWidth());
        assertEquals(h, mWallpaperManager.getDesiredMinimumHeight());

        mWallpaperManager.suggestDesiredDimensions(w, max / 2);
        assertEquals(w, mWallpaperManager.getDesiredMinimumWidth());
        assertEquals(max, mWallpaperManager.getDesiredMinimumHeight());
    }

    private int getMaximumSizeDimension() {
        WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
        Display d = wm.getDefaultDisplay();
        return d.getMaximumSizeDimension();
    }
}