Test for decoding Bitmap from MemoryFile ParcelFileDescriptor

/*

 * 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.graphics;

import android.os.ParcelFileDescriptor;

import android.test.suitebuilder.annotation.SmallTest;

import java.io.ByteArrayOutputStream;

import java.io.FileDescriptor;

import junit.framework.TestCase;

public class BitmapFactoryTest extends TestCase {

    // tests that we can decode bitmaps from MemoryFiles

    @SmallTest

    public void testBitmapParcelFileDescriptor() throws Exception {

        Bitmap bitmap1 = Bitmap.createBitmap(

                new int[] { Color.BLUE }, 1, 1, Bitmap.Config.RGB_565);

        ByteArrayOutputStream out = new ByteArrayOutputStream();

        bitmap1.compress(Bitmap.CompressFormat.PNG, 100, out);

        ParcelFileDescriptor pfd = ParcelFileDescriptor.fromData(out.toByteArray(), null);

        FileDescriptor fd = pfd.getFileDescriptor();

        assertNotNull("Got null FileDescriptor", fd);

        assertTrue("Got invalid FileDescriptor", fd.valid());

        Bitmap bitmap = BitmapFactory.decodeFileDescriptor(fd);

        assertNotNull("BitmapFactory returned null", bitmap);

        assertEquals("Bitmap width", 1, bitmap.getWidth());

        assertEquals("Bitmap height", 1, bitmap.getHeight());

    }

}