graphics/drawable/static/tests/src/android/support/graphics/drawable/tests/VectorDrawableTest.java - platform/frameworks/support - Git at Google

 /*
  * 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 android.support.graphics.drawable.tests;

 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;

 import android.content.Context;
 import android.content.res.Resources;
 import android.content.res.Resources.Theme;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.support.graphics.drawable.VectorDrawableCompat;
 import android.support.graphics.drawable.test.R;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.MediumTest;
 import android.support.test.runner.AndroidJUnit4;
 import android.util.Log;

 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.xmlpull.v1.XmlPullParserException;

 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;

 @RunWith(AndroidJUnit4.class)
 @MediumTest
 public class VectorDrawableTest {
     private static final String LOGTAG = "VectorDrawableTest";

     private static final int[] ICON_RES_IDS = new int[]{
             R.drawable.vector_icon_create,
             R.drawable.vector_icon_delete,
             R.drawable.vector_icon_heart,
             R.drawable.vector_icon_schedule,
             R.drawable.vector_icon_settings,
             R.drawable.vector_icon_random_path_1,
             R.drawable.vector_icon_random_path_2,
             R.drawable.vector_icon_repeated_cq,
             R.drawable.vector_icon_repeated_st,
             R.drawable.vector_icon_repeated_a_1,
             R.drawable.vector_icon_repeated_a_2,
             R.drawable.vector_icon_clip_path_1,
             R.drawable.vector_icon_transformation_1,
             R.drawable.vector_icon_transformation_4,
             R.drawable.vector_icon_transformation_5,
             R.drawable.vector_icon_transformation_6,
             R.drawable.vector_icon_render_order_1,
             R.drawable.vector_icon_render_order_2,
             R.drawable.vector_icon_stroke_1,
             R.drawable.vector_icon_stroke_2,
             R.drawable.vector_icon_stroke_3,
             R.drawable.vector_icon_scale_1,
             R.drawable.vector_icon_group_clip,
             R.drawable.vector_icon_share,
             R.drawable.vector_icon_wishlist,
             R.drawable.vector_icon_five_bars,
             R.drawable.vector_icon_filltype_evenodd,
             R.drawable.vector_icon_filltype_nonzero,
     };

     private static final int[] GOLDEN_IMAGES = new int[]{
             R.drawable.vector_icon_create_golden,
             R.drawable.vector_icon_delete_golden,
             R.drawable.vector_icon_heart_golden,
             R.drawable.vector_icon_schedule_golden,
             R.drawable.vector_icon_settings_golden,
             R.drawable.vector_icon_random_path_1_golden,
             R.drawable.vector_icon_random_path_2_golden,
             R.drawable.vector_icon_repeated_cq_golden,
             R.drawable.vector_icon_repeated_st_golden,
             R.drawable.vector_icon_repeated_a_1_golden,
             R.drawable.vector_icon_repeated_a_2_golden,
             R.drawable.vector_icon_clip_path_1_golden,
             R.drawable.vector_icon_transformation_1_golden,
             R.drawable.vector_icon_transformation_4_golden,
             R.drawable.vector_icon_transformation_5_golden,
             R.drawable.vector_icon_transformation_6_golden,
             R.drawable.vector_icon_render_order_1_golden,
             R.drawable.vector_icon_render_order_2_golden,
             R.drawable.vector_icon_stroke_1_golden,
             R.drawable.vector_icon_stroke_2_golden,
             R.drawable.vector_icon_stroke_3_golden,
             R.drawable.vector_icon_scale_1_golden,
             R.drawable.vector_icon_group_clip_golden,
             R.drawable.vector_icon_share_golden,
             R.drawable.vector_icon_wishlist_golden,
             R.drawable.vector_icon_five_bars_golden,
             R.drawable.vector_icon_filltype_evenodd_golden,
             R.drawable.vector_icon_filltype_nonzero_golden,
     };

     private static final int TEST_ICON = R.drawable.vector_icon_create;

     private static final int IMAGE_WIDTH = 64;
     private static final int IMAGE_HEIGHT = 64;
     // A small value is actually making sure that the values are matching
     // exactly with the golden image.
     // We can increase the threshold if the Skia is drawing with some variance
     // on different devices. So far, the tests show they are matching correctly.
     private static final float PIXEL_ERROR_THRESHOLD = 0.3f;
     private static final float PIXEL_DIFF_COUNT_THRESHOLD = 0.1f;
     private static final float PIXEL_DIFF_THRESHOLD = 0.025f;

     private static final boolean DBG_DUMP_PNG = false;

     private Context mContext;
     private Resources mResources;
     private VectorDrawableCompat mVectorDrawable;
     private Bitmap mBitmap;
     private Canvas mCanvas;
     private Theme mTheme;

     @Before
     public void setup() {
         final int width = IMAGE_WIDTH;
         final int height = IMAGE_HEIGHT;

         mBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
         mCanvas = new Canvas(mBitmap);

         mContext = InstrumentationRegistry.getContext();
         mResources = mContext.getResources();
         mTheme = mContext.getTheme();
     }

     @Test
     public void testSimpleVectorDrawables() throws Exception {
         verifyVectorDrawables(ICON_RES_IDS, GOLDEN_IMAGES, null);
     }

     private void verifyVectorDrawables(int[] resIds, int[] goldenImages, int[] stateSet)
             throws XmlPullParserException, IOException {
         for (int i = 0; i < resIds.length; i++) {
             // Setup VectorDrawable from xml file and draw into the bitmap.
             mVectorDrawable = VectorDrawableCompat.create(mResources, resIds[i], mTheme);
             mVectorDrawable.setBounds(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
             if (stateSet != null) {
                 mVectorDrawable.setState(stateSet);
             }

             mBitmap.eraseColor(0);
             mVectorDrawable.draw(mCanvas);

             if (DBG_DUMP_PNG) {
                 saveVectorDrawableIntoPNG(mBitmap, resIds, i, stateSet);
             } else {
                 // Start to compare
                 Bitmap golden = BitmapFactory.decodeResource(mResources, goldenImages[i]);
                 compareImages(mBitmap, golden, mResources.getString(resIds[i]));
             }
         }
     }

     // This is only for debugging or golden image (re)generation purpose.
     private void saveVectorDrawableIntoPNG(Bitmap bitmap, int[] resIds, int index, int[] stateSet)
             throws IOException {
         // Save the image to the disk.
         FileOutputStream out = null;
         try {
             String outputFolder = "/sdcard/temp/";
             File folder = new File(outputFolder);
             if (!folder.exists()) {
                 folder.mkdir();
             }
             String originalFilePath = mResources.getString(resIds[index]);
             File originalFile = new File(originalFilePath);
             String fileFullName = originalFile.getName();
             String fileTitle = fileFullName.substring(0, fileFullName.lastIndexOf("."));
             String stateSetTitle = getTitleForStateSet(stateSet);
             String outputFilename = outputFolder + fileTitle + "_golden" + stateSetTitle + ".png";
             File outputFile = new File(outputFilename);
             if (!outputFile.exists()) {
                 outputFile.createNewFile();
             }

             out = new FileOutputStream(outputFile, false);
             bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
             Log.v(LOGTAG, "Write test No." + index + " to file successfully.");
         } catch (Exception e) {
             e.printStackTrace();
         } finally {
             if (out != null) {
                 out.close();
             }
         }
     }

     /**
      * Generates an underline-delimited list of states in a given state set.
      * <p/>
      * For example, the array {@code {R.attr.state_pressed}} would return
      * {@code "_pressed"}.
      *
      * @param stateSet a state set
      * @return a string representing the state set, or the empty string if the
      * state set is empty or {@code null}
      */
     private String getTitleForStateSet(int[] stateSet) {
         if (stateSet == null || stateSet.length == 0) {
             return "";
         }

         final StringBuilder builder = new StringBuilder();
         for (int i = 0; i < stateSet.length; i++) {
             builder.append('_');

             final String state = mResources.getResourceName(stateSet[i]);
             final int stateIndex = state.indexOf("state_");
             if (stateIndex >= 0) {
                 builder.append(state.substring(stateIndex + 6));
             } else {
                 builder.append(stateSet[i]);
             }
         }

         return builder.toString();
     }

     private void compareImages(Bitmap ideal, Bitmap given, String filename) {
         int idealWidth = ideal.getWidth();
         int idealHeight = ideal.getHeight();

         assertTrue(idealWidth == given.getWidth());
         assertTrue(idealHeight == given.getHeight());

         int totalDiffPixelCount = 0;
         float totalPixelCount = idealWidth * idealHeight;
         for (int x = 0; x < idealWidth; x++) {
             for (int y = 0; y < idealHeight; y++) {
                 int idealColor = ideal.getPixel(x, y);
                 int givenColor = given.getPixel(x, y);
                 if (idealColor == givenColor)
                     continue;

                 float totalError = 0;
                 totalError += Math.abs(Color.red(idealColor) - Color.red(givenColor));
                 totalError += Math.abs(Color.green(idealColor) - Color.green(givenColor));
                 totalError += Math.abs(Color.blue(idealColor) - Color.blue(givenColor));
                 totalError += Math.abs(Color.alpha(idealColor) - Color.alpha(givenColor));

                 if ((totalError / 1024.0f) >= PIXEL_ERROR_THRESHOLD) {
                     fail((filename + ": totalError is " + totalError));
                 }

                 if ((totalError / 1024.0f) >= PIXEL_DIFF_THRESHOLD) {
                     totalDiffPixelCount++;
                 }
             }
         }
         if ((totalDiffPixelCount / totalPixelCount) >= PIXEL_DIFF_COUNT_THRESHOLD) {
             fail((filename + ": totalDiffPixelCount is " + totalDiffPixelCount));
         }

     }

     @Test
     public void testGetChangingConfigurations() {
         VectorDrawableCompat vectorDrawable =
                 VectorDrawableCompat.create(mResources, TEST_ICON, mTheme);
         Drawable.ConstantState constantState = vectorDrawable.getConstantState();

         // default
         assertEquals(0, constantState.getChangingConfigurations());
         assertEquals(0, vectorDrawable.getChangingConfigurations());

         // change the drawable's configuration does not affect the state's configuration
         vectorDrawable.setChangingConfigurations(0xff);
         assertEquals(0xff, vectorDrawable.getChangingConfigurations());
         assertEquals(0, constantState.getChangingConfigurations());

         // the state's configuration get refreshed
         constantState = vectorDrawable.getConstantState();
         assertEquals(0xff, constantState.getChangingConfigurations());

         // set a new configuration to drawable
         vectorDrawable.setChangingConfigurations(0xff00);
         assertEquals(0xff, constantState.getChangingConfigurations());
         assertEquals(0xffff, vectorDrawable.getChangingConfigurations());
     }

     @Test
     public void testGetConstantState() {
         VectorDrawableCompat vectorDrawable =
                 VectorDrawableCompat.create(mResources, R.drawable.vector_icon_delete, mTheme);
         Drawable.ConstantState constantState = vectorDrawable.getConstantState();
         assertNotNull(constantState);
         assertEquals(0, constantState.getChangingConfigurations());

         vectorDrawable.setChangingConfigurations(1);
         constantState = vectorDrawable.getConstantState();
         assertNotNull(constantState);
         assertEquals(1, constantState.getChangingConfigurations());
     }

     @Test
     public void testMutate() {
         VectorDrawableCompat d1 =
                 VectorDrawableCompat.create(mResources, TEST_ICON, mTheme);
         VectorDrawableCompat d2 =
                 (VectorDrawableCompat) d1.getConstantState().newDrawable(mResources);
         VectorDrawableCompat d3 =
                 (VectorDrawableCompat) d1.getConstantState().newDrawable(mResources);

         // d1 will be mutated, while d2 / d3 will not.
         int originalAlpha = d2.getAlpha();

         d1.setAlpha(0x80);
         assertEquals(0x80, d1.getAlpha());
         assertEquals(0x80, d2.getAlpha());
         assertEquals(0x80, d3.getAlpha());

         d1.mutate();
         d1.setAlpha(0x40);
         assertEquals(0x40, d1.getAlpha());
         assertEquals(0x80, d2.getAlpha());
         assertEquals(0x80, d3.getAlpha());

         d2.setAlpha(0x20);
         assertEquals(0x40, d1.getAlpha());
         assertEquals(0x20, d2.getAlpha());
         assertEquals(0x20, d3.getAlpha());

         d2.setAlpha(originalAlpha);
     }

     public void testBounds() {
         VectorDrawableCompat vectorDrawable =
                 VectorDrawableCompat.create(mResources, R.drawable.vector_icon_delete, mTheme);
         Rect expectedRect = new Rect(0, 0, 100, 100);
         vectorDrawable.setBounds(0, 0, 100, 100);
         Rect rect = vectorDrawable.getBounds();
         assertEquals("Bounds should be same value for setBound(int ...)", rect, expectedRect);

         vectorDrawable.setBounds(expectedRect);
         rect = vectorDrawable.getBounds();
         assertEquals("Bounds should be same value for setBound(Rect)", rect, expectedRect);

         vectorDrawable.copyBounds(rect);
         assertEquals("Bounds should be same value for copyBounds", rect, expectedRect);
     }
 }
	/*
	* 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 android.support.graphics.drawable.tests;

	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertNotNull;
	import static org.junit.Assert.assertTrue;
	import static org.junit.Assert.fail;

	import android.content.Context;
	import android.content.res.Resources;
	import android.content.res.Resources.Theme;
	import android.graphics.Bitmap;
	import android.graphics.BitmapFactory;
	import android.graphics.Canvas;
	import android.graphics.Color;
	import android.graphics.Rect;
	import android.graphics.drawable.Drawable;
	import android.support.graphics.drawable.VectorDrawableCompat;
	import android.support.graphics.drawable.test.R;
	import android.support.test.InstrumentationRegistry;
	import android.support.test.filters.MediumTest;
	import android.support.test.runner.AndroidJUnit4;
	import android.util.Log;

	import org.junit.Before;
	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.xmlpull.v1.XmlPullParserException;

	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;

	@RunWith(AndroidJUnit4.class)
	@MediumTest
	public class VectorDrawableTest {
	private static final String LOGTAG = "VectorDrawableTest";

	private static final int[] ICON_RES_IDS = new int[]{
	R.drawable.vector_icon_create,
	R.drawable.vector_icon_delete,
	R.drawable.vector_icon_heart,
	R.drawable.vector_icon_schedule,
	R.drawable.vector_icon_settings,
	R.drawable.vector_icon_random_path_1,
	R.drawable.vector_icon_random_path_2,
	R.drawable.vector_icon_repeated_cq,
	R.drawable.vector_icon_repeated_st,
	R.drawable.vector_icon_repeated_a_1,
	R.drawable.vector_icon_repeated_a_2,
	R.drawable.vector_icon_clip_path_1,
	R.drawable.vector_icon_transformation_1,
	R.drawable.vector_icon_transformation_4,
	R.drawable.vector_icon_transformation_5,
	R.drawable.vector_icon_transformation_6,
	R.drawable.vector_icon_render_order_1,
	R.drawable.vector_icon_render_order_2,
	R.drawable.vector_icon_stroke_1,
	R.drawable.vector_icon_stroke_2,
	R.drawable.vector_icon_stroke_3,
	R.drawable.vector_icon_scale_1,
	R.drawable.vector_icon_group_clip,
	R.drawable.vector_icon_share,
	R.drawable.vector_icon_wishlist,
	R.drawable.vector_icon_five_bars,
	R.drawable.vector_icon_filltype_evenodd,
	R.drawable.vector_icon_filltype_nonzero,
	};

	private static final int[] GOLDEN_IMAGES = new int[]{
	R.drawable.vector_icon_create_golden,
	R.drawable.vector_icon_delete_golden,
	R.drawable.vector_icon_heart_golden,
	R.drawable.vector_icon_schedule_golden,
	R.drawable.vector_icon_settings_golden,
	R.drawable.vector_icon_random_path_1_golden,
	R.drawable.vector_icon_random_path_2_golden,
	R.drawable.vector_icon_repeated_cq_golden,
	R.drawable.vector_icon_repeated_st_golden,
	R.drawable.vector_icon_repeated_a_1_golden,
	R.drawable.vector_icon_repeated_a_2_golden,
	R.drawable.vector_icon_clip_path_1_golden,
	R.drawable.vector_icon_transformation_1_golden,
	R.drawable.vector_icon_transformation_4_golden,
	R.drawable.vector_icon_transformation_5_golden,
	R.drawable.vector_icon_transformation_6_golden,
	R.drawable.vector_icon_render_order_1_golden,
	R.drawable.vector_icon_render_order_2_golden,
	R.drawable.vector_icon_stroke_1_golden,
	R.drawable.vector_icon_stroke_2_golden,
	R.drawable.vector_icon_stroke_3_golden,
	R.drawable.vector_icon_scale_1_golden,
	R.drawable.vector_icon_group_clip_golden,
	R.drawable.vector_icon_share_golden,
	R.drawable.vector_icon_wishlist_golden,
	R.drawable.vector_icon_five_bars_golden,
	R.drawable.vector_icon_filltype_evenodd_golden,
	R.drawable.vector_icon_filltype_nonzero_golden,
	};

	private static final int TEST_ICON = R.drawable.vector_icon_create;

	private static final int IMAGE_WIDTH = 64;
	private static final int IMAGE_HEIGHT = 64;
	// A small value is actually making sure that the values are matching
	// exactly with the golden image.
	// We can increase the threshold if the Skia is drawing with some variance
	// on different devices. So far, the tests show they are matching correctly.
	private static final float PIXEL_ERROR_THRESHOLD = 0.3f;
	private static final float PIXEL_DIFF_COUNT_THRESHOLD = 0.1f;
	private static final float PIXEL_DIFF_THRESHOLD = 0.025f;

	private static final boolean DBG_DUMP_PNG = false;

	private Context mContext;
	private Resources mResources;
	private VectorDrawableCompat mVectorDrawable;
	private Bitmap mBitmap;
	private Canvas mCanvas;
	private Theme mTheme;

	@Before
	public void setup() {
	final int width = IMAGE_WIDTH;
	final int height = IMAGE_HEIGHT;

	mBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
	mCanvas = new Canvas(mBitmap);

	mContext = InstrumentationRegistry.getContext();
	mResources = mContext.getResources();
	mTheme = mContext.getTheme();
	}

	@Test
	public void testSimpleVectorDrawables() throws Exception {
	verifyVectorDrawables(ICON_RES_IDS, GOLDEN_IMAGES, null);
	}

	private void verifyVectorDrawables(int[] resIds, int[] goldenImages, int[] stateSet)
	throws XmlPullParserException, IOException {
	for (int i = 0; i < resIds.length; i++) {
	// Setup VectorDrawable from xml file and draw into the bitmap.
	mVectorDrawable = VectorDrawableCompat.create(mResources, resIds[i], mTheme);
	mVectorDrawable.setBounds(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
	if (stateSet != null) {
	mVectorDrawable.setState(stateSet);
	}

	mBitmap.eraseColor(0);
	mVectorDrawable.draw(mCanvas);

	if (DBG_DUMP_PNG) {
	saveVectorDrawableIntoPNG(mBitmap, resIds, i, stateSet);
	} else {
	// Start to compare
	Bitmap golden = BitmapFactory.decodeResource(mResources, goldenImages[i]);
	compareImages(mBitmap, golden, mResources.getString(resIds[i]));
	}
	}
	}

	// This is only for debugging or golden image (re)generation purpose.
	private void saveVectorDrawableIntoPNG(Bitmap bitmap, int[] resIds, int index, int[] stateSet)
	throws IOException {
	// Save the image to the disk.
	FileOutputStream out = null;
	try {
	String outputFolder = "/sdcard/temp/";
	File folder = new File(outputFolder);
	if (!folder.exists()) {
	folder.mkdir();
	}
	String originalFilePath = mResources.getString(resIds[index]);
	File originalFile = new File(originalFilePath);
	String fileFullName = originalFile.getName();
	String fileTitle = fileFullName.substring(0, fileFullName.lastIndexOf("."));
	String stateSetTitle = getTitleForStateSet(stateSet);
	String outputFilename = outputFolder + fileTitle + "_golden" + stateSetTitle + ".png";
	File outputFile = new File(outputFilename);
	if (!outputFile.exists()) {
	outputFile.createNewFile();
	}

	out = new FileOutputStream(outputFile, false);
	bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
	Log.v(LOGTAG, "Write test No." + index + " to file successfully.");
	} catch (Exception e) {
	e.printStackTrace();
	} finally {
	if (out != null) {
	out.close();
	}
	}
	}

	/**
	* Generates an underline-delimited list of states in a given state set.
	* <p/>
	* For example, the array {@code {R.attr.state_pressed}} would return
	* {@code "_pressed"}.
	*
	* @param stateSet a state set
	* @return a string representing the state set, or the empty string if the
	* state set is empty or {@code null}
	*/
	private String getTitleForStateSet(int[] stateSet) {
	if (stateSet == null \|\| stateSet.length == 0) {
	return "";
	}

	final StringBuilder builder = new StringBuilder();
	for (int i = 0; i < stateSet.length; i++) {
	builder.append('_');

	final String state = mResources.getResourceName(stateSet[i]);
	final int stateIndex = state.indexOf("state_");
	if (stateIndex >= 0) {
	builder.append(state.substring(stateIndex + 6));
	} else {
	builder.append(stateSet[i]);
	}
	}

	return builder.toString();
	}

	private void compareImages(Bitmap ideal, Bitmap given, String filename) {
	int idealWidth = ideal.getWidth();
	int idealHeight = ideal.getHeight();

	assertTrue(idealWidth == given.getWidth());
	assertTrue(idealHeight == given.getHeight());

	int totalDiffPixelCount = 0;
	float totalPixelCount = idealWidth * idealHeight;
	for (int x = 0; x < idealWidth; x++) {
	for (int y = 0; y < idealHeight; y++) {
	int idealColor = ideal.getPixel(x, y);
	int givenColor = given.getPixel(x, y);
	if (idealColor == givenColor)
	continue;

	float totalError = 0;
	totalError += Math.abs(Color.red(idealColor) - Color.red(givenColor));
	totalError += Math.abs(Color.green(idealColor) - Color.green(givenColor));
	totalError += Math.abs(Color.blue(idealColor) - Color.blue(givenColor));
	totalError += Math.abs(Color.alpha(idealColor) - Color.alpha(givenColor));

	if ((totalError / 1024.0f) >= PIXEL_ERROR_THRESHOLD) {
	fail((filename + ": totalError is " + totalError));
	}

	if ((totalError / 1024.0f) >= PIXEL_DIFF_THRESHOLD) {
	totalDiffPixelCount++;
	}
	}
	}
	if ((totalDiffPixelCount / totalPixelCount) >= PIXEL_DIFF_COUNT_THRESHOLD) {
	fail((filename + ": totalDiffPixelCount is " + totalDiffPixelCount));
	}

	}

	@Test
	public void testGetChangingConfigurations() {
	VectorDrawableCompat vectorDrawable =
	VectorDrawableCompat.create(mResources, TEST_ICON, mTheme);
	Drawable.ConstantState constantState = vectorDrawable.getConstantState();

	// default
	assertEquals(0, constantState.getChangingConfigurations());
	assertEquals(0, vectorDrawable.getChangingConfigurations());

	// change the drawable's configuration does not affect the state's configuration
	vectorDrawable.setChangingConfigurations(0xff);
	assertEquals(0xff, vectorDrawable.getChangingConfigurations());
	assertEquals(0, constantState.getChangingConfigurations());

	// the state's configuration get refreshed
	constantState = vectorDrawable.getConstantState();
	assertEquals(0xff, constantState.getChangingConfigurations());

	// set a new configuration to drawable
	vectorDrawable.setChangingConfigurations(0xff00);
	assertEquals(0xff, constantState.getChangingConfigurations());
	assertEquals(0xffff, vectorDrawable.getChangingConfigurations());
	}

	@Test
	public void testGetConstantState() {
	VectorDrawableCompat vectorDrawable =
	VectorDrawableCompat.create(mResources, R.drawable.vector_icon_delete, mTheme);
	Drawable.ConstantState constantState = vectorDrawable.getConstantState();
	assertNotNull(constantState);
	assertEquals(0, constantState.getChangingConfigurations());

	vectorDrawable.setChangingConfigurations(1);
	constantState = vectorDrawable.getConstantState();
	assertNotNull(constantState);
	assertEquals(1, constantState.getChangingConfigurations());
	}

	@Test
	public void testMutate() {
	VectorDrawableCompat d1 =
	VectorDrawableCompat.create(mResources, TEST_ICON, mTheme);
	VectorDrawableCompat d2 =
	(VectorDrawableCompat) d1.getConstantState().newDrawable(mResources);
	VectorDrawableCompat d3 =
	(VectorDrawableCompat) d1.getConstantState().newDrawable(mResources);

	// d1 will be mutated, while d2 / d3 will not.
	int originalAlpha = d2.getAlpha();

	d1.setAlpha(0x80);
	assertEquals(0x80, d1.getAlpha());
	assertEquals(0x80, d2.getAlpha());
	assertEquals(0x80, d3.getAlpha());

	d1.mutate();
	d1.setAlpha(0x40);
	assertEquals(0x40, d1.getAlpha());
	assertEquals(0x80, d2.getAlpha());
	assertEquals(0x80, d3.getAlpha());

	d2.setAlpha(0x20);
	assertEquals(0x40, d1.getAlpha());
	assertEquals(0x20, d2.getAlpha());
	assertEquals(0x20, d3.getAlpha());

	d2.setAlpha(originalAlpha);
	}

	public void testBounds() {
	VectorDrawableCompat vectorDrawable =
	VectorDrawableCompat.create(mResources, R.drawable.vector_icon_delete, mTheme);
	Rect expectedRect = new Rect(0, 0, 100, 100);
	vectorDrawable.setBounds(0, 0, 100, 100);
	Rect rect = vectorDrawable.getBounds();
	assertEquals("Bounds should be same value for setBound(int ...)", rect, expectedRect);

	vectorDrawable.setBounds(expectedRect);
	rect = vectorDrawable.getBounds();
	assertEquals("Bounds should be same value for setBound(Rect)", rect, expectedRect);

	vectorDrawable.copyBounds(rect);
	assertEquals("Bounds should be same value for copyBounds", rect, expectedRect);
	}
	}