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/*
* 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 com.android.tv.util.images;
import static com.google.common.truth.Truth.assertWithMessage;
import android.graphics.Bitmap;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import com.android.tv.util.images.BitmapUtils.ScaledBitmapInfo;
import org.junit.Test;
import org.junit.runner.RunWith;
/** Tests for {@link ScaledBitmapInfo}. */
@SmallTest
@RunWith(AndroidJUnit4.class)
public class ScaledBitmapInfoTest {
private static final Bitmap B80x100 = Bitmap.createBitmap(80, 100, Bitmap.Config.RGB_565);
private static final Bitmap B960x1440 = Bitmap.createBitmap(960, 1440, Bitmap.Config.RGB_565);
@Test
public void testSize_B100x100to50x50() {
ScaledBitmapInfo actual = BitmapUtils.createScaledBitmapInfo("B80x100", B80x100, 50, 50);
assertScaledBitmapSize(2, 40, 50, actual);
}
@Test
public void testNeedsToReload_B100x100to50x50() {
ScaledBitmapInfo actual = BitmapUtils.createScaledBitmapInfo("B80x100", B80x100, 50, 50);
assertNeedsToReload(false, actual, 25, 25);
assertNeedsToReload(false, actual, 50, 50);
assertNeedsToReload(false, actual, 99, 99);
assertNeedsToReload(true, actual, 100, 100);
assertNeedsToReload(true, actual, 101, 101);
}
/** Reproduces <a href="http://b/20488453">b/20488453</a>. */
@Test
public void testBug20488453() {
ScaledBitmapInfo actual =
BitmapUtils.createScaledBitmapInfo("B960x1440", B960x1440, 284, 160);
assertScaledBitmapSize(8, 107, 160, actual);
assertNeedsToReload(false, actual, 284, 160);
}
private static void assertNeedsToReload(
boolean expected, ScaledBitmapInfo scaledBitmap, int reqWidth, int reqHeight) {
assertWithMessage(scaledBitmap.id + " needToReload(" + reqWidth + "," + reqHeight + ")")
.that(scaledBitmap.needToReload(reqWidth, reqHeight))
.isEqualTo(expected);
}
private static void assertScaledBitmapSize(
int expectedInSampleSize,
int expectedWidth,
int expectedHeight,
ScaledBitmapInfo actual) {
assertWithMessage(actual.id + " inSampleSize")
.that(actual.inSampleSize)
.isEqualTo(expectedInSampleSize);
assertWithMessage(actual.id + " width").that(actual.bitmap.getWidth()).isEqualTo(expectedWidth);
assertWithMessage(actual.id + " height")
.that(actual.bitmap.getHeight())
.isEqualTo(expectedHeight);
}
}
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