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/*
* Copyright (C) 2015 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.setupwizardlib.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.os.Debug;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import android.util.Log;
import com.android.setupwizardlib.GlifPatternDrawable;
import junit.framework.AssertionFailedError;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class GlifPatternDrawableTest {
private static final String TAG = "GlifPatternDrawableTest";
@Before
public void setUp() throws Exception {
GlifPatternDrawable.invalidatePattern();
}
@Test
public void testDraw() {
final Bitmap bitmap = Bitmap.createBitmap(1366, 768, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 1366, 768);
drawable.draw(canvas);
assertSameColor("Top left pixel should be #e61a1a", 0xffe61a1a, bitmap.getPixel(0, 0));
assertSameColor("Center pixel should be #d90d0d", 0xffd90d0d, bitmap.getPixel(683, 384));
assertSameColor("Bottom right pixel should be #d40808", 0xffd40808,
bitmap.getPixel(1365, 767));
}
@Test
public void testDrawTwice() {
// Test that the second time the drawable is drawn is also correct, to make sure caching is
// done correctly.
final Bitmap bitmap = Bitmap.createBitmap(1366, 768, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 1366, 768);
drawable.draw(canvas);
Paint paint = new Paint();
paint.setColor(Color.WHITE);
canvas.drawRect(0, 0, 1366, 768, paint); // Erase the entire canvas
drawable.draw(canvas);
assertSameColor("Top left pixel should be #e61a1a", 0xffe61a1a, bitmap.getPixel(0, 0));
assertSameColor("Center pixel should be #d90d0d", 0xffd90d0d, bitmap.getPixel(683, 384));
assertSameColor("Bottom right pixel should be #d40808", 0xffd40808,
bitmap.getPixel(1365, 767));
}
@Test
public void testScaleToCanvasSquare() {
final Canvas canvas = new Canvas();
Matrix expected = new Matrix(canvas.getMatrix());
Bitmap mockBitmapCache = Bitmap.createBitmap(1366, 768, Bitmap.Config.ALPHA_8);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 683, 384); // half each side of the view box
drawable.scaleCanvasToBounds(canvas, mockBitmapCache, drawable.getBounds());
expected.postScale(0.5f, 0.5f);
assertEquals("Matrices should match", expected, canvas.getMatrix());
}
@Test
public void testScaleToCanvasTall() {
final Canvas canvas = new Canvas();
final Matrix expected = new Matrix(canvas.getMatrix());
Bitmap mockBitmapCache = Bitmap.createBitmap(1366, 768, Bitmap.Config.ALPHA_8);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 683, 768); // half the width only
drawable.scaleCanvasToBounds(canvas, mockBitmapCache, drawable.getBounds());
expected.postScale(1f, 1f);
expected.postTranslate(-99.718f, 0f);
assertEquals("Matrices should match", expected, canvas.getMatrix());
}
@Test
public void testScaleToCanvasWide() {
final Canvas canvas = new Canvas();
final Matrix expected = new Matrix(canvas.getMatrix());
Bitmap mockBitmapCache = Bitmap.createBitmap(1366, 768, Bitmap.Config.ALPHA_8);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 1366, 384); // half the height only
drawable.scaleCanvasToBounds(canvas, mockBitmapCache, drawable.getBounds());
expected.postScale(1f, 1f);
expected.postTranslate(0f, -87.552f);
assertEquals("Matrices should match", expected, canvas.getMatrix());
}
@Test
public void testScaleToCanvasMaxSize() {
final Canvas canvas = new Canvas();
final Matrix expected = new Matrix(canvas.getMatrix());
Bitmap mockBitmapCache = Bitmap.createBitmap(2049, 1152, Bitmap.Config.ALPHA_8);
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 1366, 768); // original viewbox size
drawable.scaleCanvasToBounds(canvas, mockBitmapCache, drawable.getBounds());
expected.postScale(1 / 1.5f, 1 / 1.5f);
expected.postTranslate(0f, 0f);
assertEquals("Matrices should match", expected, canvas.getMatrix());
}
@Test
public void testMemoryAllocation() {
Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
Debug.getMemoryInfo(memoryInfo);
final long memoryBefore = memoryInfo.getTotalPss(); // Get memory usage in KB
final GlifPatternDrawable drawable = new GlifPatternDrawable(Color.RED);
drawable.setBounds(0, 0, 1366, 768);
drawable.createBitmapCache(2049, 1152);
Debug.getMemoryInfo(memoryInfo);
final long memoryAfter = memoryInfo.getTotalPss();
Log.i(TAG, "Memory allocated for bitmap cache: " + (memoryAfter - memoryBefore));
assertTrue("Memory allocation should not exceed 5MB", memoryAfter < memoryBefore + 5000);
}
private void assertSameColor(String message, int expected, int actual) {
try {
assertEquals(expected, actual);
} catch (AssertionFailedError e) {
throw new AssertionFailedError(message + " expected <#" + Integer.toHexString(expected)
+ "> but found <#" + Integer.toHexString(actual) + "> instead");
}
}
}
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