base/gfx/platform_canvas_unittest.cc - platform/external/libchrome - Gitiles

 // Copyright 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //    * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 #include <windows.h>

 #include "base/gfx/platform_canvas_win.h"
 #include "base/gfx/platform_device_win.h"
 #include "testing/gtest/include/gtest/gtest.h"

 #include "SkColor.h"

 namespace gfx {

 namespace {

 // Return true if the canvas is filled to canvas_color,
 // and contains a single rectangle filled to rect_color.
 bool VerifyRect(const PlatformCanvasWin& canvas,
                 uint32_t canvas_color, uint32_t rect_color,
                 int x, int y, int w, int h) {
   PlatformDeviceWin& device = canvas.getTopPlatformDevice();
   const SkBitmap& bitmap = device.accessBitmap(false);
   SkAutoLockPixels lock(bitmap);

   for (int cur_y = 0; cur_y < bitmap.height(); cur_y++) {
     for (int cur_x = 0; cur_x < bitmap.width(); cur_x++) {
       if (cur_x >= x && cur_x < x + w &&
           cur_y >= y && cur_y < y + h) {
         // Inside the square should be rect_color
         if (*bitmap.getAddr32(cur_x, cur_y) != rect_color)
           return false;
       } else {
         // Outside the square should be canvas_color
         if (*bitmap.getAddr32(cur_x, cur_y) != canvas_color)
           return false;
       }
     }
   }
   return true;
 }

 // Checks whether there is a white canvas with a black square at the given
 // location in pixels (not in the canvas coordinate system).
 // TODO(ericroman): rename Square to Rect
 bool VerifyBlackSquare(const PlatformCanvasWin& canvas, int x, int y, int w, int h) {
   return VerifyRect(canvas, SK_ColorWHITE, SK_ColorBLACK, x, y, w, h);
 }

 // Check that every pixel in the canvas is a single color.
 bool VerifyCanvasColor(const PlatformCanvasWin& canvas, uint32_t canvas_color) {
   return VerifyRect(canvas, canvas_color, 0, 0, 0, 0, 0);
 }

 void DrawGDIRect(PlatformCanvasWin& canvas, int x, int y, int w, int h) {
   HDC dc = canvas.beginPlatformPaint();

   RECT inner_rc;
   inner_rc.left = x;
   inner_rc.top = y;
   inner_rc.right = x + w;
   inner_rc.bottom = y + h;
   FillRect(dc, &inner_rc, reinterpret_cast<HBRUSH>(GetStockObject(BLACK_BRUSH)));

   canvas.endPlatformPaint();
 }

 // Clips the contents of the canvas to the given rectangle. This will be
 // intersected with any existing clip.
 void AddClip(PlatformCanvasWin& canvas, int x, int y, int w, int h) {
   SkRect rect;
   rect.set(SkIntToScalar(x), SkIntToScalar(y),
            SkIntToScalar(x + w), SkIntToScalar(y + h));
   canvas.clipRect(rect);
 }

 class LayerSaver {
  public:
   LayerSaver(PlatformCanvasWin& canvas, int x, int y, int w, int h)
       : canvas_(canvas),
         x_(x),
         y_(y),
         w_(w),
         h_(h) {
     SkRect bounds;
     bounds.set(SkIntToScalar(x_), SkIntToScalar(y_),
                SkIntToScalar(right()), SkIntToScalar(bottom()));
     canvas_.saveLayer(&bounds, NULL);
   }

   ~LayerSaver() {
     canvas_.getTopPlatformDevice().fixupAlphaBeforeCompositing();
     canvas_.restore();
   }

   int x() const { return x_; }
   int y() const { return y_; }
   int w() const { return w_; }
   int h() const { return h_; }

   // Returns the EXCLUSIVE far bounds of the layer.
   int right() const { return x_ + w_; }
   int bottom() const { return y_ + h_; }

  private:
   PlatformCanvasWin& canvas_;
   int x_, y_, w_, h_;
 };

 // Size used for making layers in many of the below tests.
 const int kLayerX = 2;
 const int kLayerY = 3;
 const int kLayerW = 9;
 const int kLayerH = 7;

 // Size used by some tests to draw a rectangle inside the layer.
 const int kInnerX = 4;
 const int kInnerY = 5;
 const int kInnerW = 2;
 const int kInnerH = 3;

 }

 // This just checks that our checking code is working properly, it just uses
 // regular skia primitives.
 TEST(PlatformCanvasWin, SkLayer) {
   // Create the canvas initialized to opaque white.
   PlatformCanvasWin canvas(16, 16, true);
   canvas.drawColor(SK_ColorWHITE);

   // Make a layer and fill it completely to make sure that the bounds are
   // correct.
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     canvas.drawColor(SK_ColorBLACK);
   }
   EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX, kLayerY, kLayerW, kLayerH));
 }

 // Test the GDI clipping.
 TEST(PlatformCanvasWin, GDIClipRegion) {
   // Initialize a white canvas
   PlatformCanvasWin canvas(16, 16, true);
   canvas.drawColor(SK_ColorWHITE);
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));

   // Test that initially the canvas has no clip region, by filling it
   // with a black rectangle.
   // Note: Don't use LayerSaver, since internally it sets a clip region.
   DrawGDIRect(canvas, 0, 0, 16, 16);
   canvas.getTopPlatformDevice().fixupAlphaBeforeCompositing();
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorBLACK));

   // Test that intersecting disjoint clip rectangles sets an empty clip region
   canvas.drawColor(SK_ColorWHITE);
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
   {
     LayerSaver layer(canvas, 0, 0, 16, 16);
     AddClip(canvas, 2, 3, 4, 5);
     AddClip(canvas, 4, 9, 10, 10);
     DrawGDIRect(canvas, 0, 0, 16, 16);
   }
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
 }

 // Test the layers get filled properly by GDI.
 TEST(PlatformCanvasWin, GDILayer) {
   // Create the canvas initialized to opaque white.
   PlatformCanvasWin canvas(16, 16, true);

   // Make a layer and fill it completely to make sure that the bounds are
   // correct.
   canvas.drawColor(SK_ColorWHITE);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     DrawGDIRect(canvas, 0, 0, 100, 100);
   }
   EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX, kLayerY, kLayerW, kLayerH));

   // Make a layer and fill it partially to make sure the translation is correct.
   canvas.drawColor(SK_ColorWHITE);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
   }
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));

   // Add a clip on the layer and fill to make sure clip is correct.
   canvas.drawColor(SK_ColorWHITE);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     canvas.save();
     AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
     DrawGDIRect(canvas, 0, 0, 100, 100);
     canvas.restore();
   }
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));

   // Add a clip and then make the layer to make sure the clip is correct.
   canvas.drawColor(SK_ColorWHITE);
   canvas.save();
   AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     DrawGDIRect(canvas, 0, 0, 100, 100);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));
 }

 // Test that translation + make layer works properly.
 TEST(PlatformCanvasWin, GDITranslateLayer) {
   // Create the canvas initialized to opaque white.
   PlatformCanvasWin canvas(16, 16, true);

   // Make a layer and fill it completely to make sure that the bounds are
   // correct.
   canvas.drawColor(SK_ColorWHITE);
   canvas.save();
   canvas.translate(1, 1);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     DrawGDIRect(canvas, 0, 0, 100, 100);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX + 1, kLayerY + 1,
                                 kLayerW, kLayerH));

   // Translate then make the layer.
   canvas.drawColor(SK_ColorWHITE);
   canvas.save();
   canvas.translate(1, 1);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 1, kInnerY + 1,
                                 kInnerW, kInnerH));

   // Make the layer then translate.
   canvas.drawColor(SK_ColorWHITE);
   canvas.save();
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     canvas.translate(1, 1);
     DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 1, kInnerY + 1,
                                 kInnerW, kInnerH));

   // Translate both before and after, and have a clip.
   canvas.drawColor(SK_ColorWHITE);
   canvas.save();
   canvas.translate(1, 1);
   {
     LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
     canvas.translate(1, 1);
     AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
     DrawGDIRect(canvas, 0, 0, 100, 100);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 2, kInnerY + 2,
                                 kInnerW, kInnerH));
 }

 }  // namespace
	// Copyright 2008, Google Inc.
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are
	// met:
	//
	// * Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above
	// copyright notice, this list of conditions and the following disclaimer
	// in the documentation and/or other materials provided with the
	// distribution.
	// * Neither the name of Google Inc. nor the names of its
	// contributors may be used to endorse or promote products derived from
	// this software without specific prior written permission.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	#include <windows.h>

	#include "base/gfx/platform_canvas_win.h"
	#include "base/gfx/platform_device_win.h"
	#include "testing/gtest/include/gtest/gtest.h"

	#include "SkColor.h"

	namespace gfx {

	namespace {

	// Return true if the canvas is filled to canvas_color,
	// and contains a single rectangle filled to rect_color.
	bool VerifyRect(const PlatformCanvasWin& canvas,
	uint32_t canvas_color, uint32_t rect_color,
	int x, int y, int w, int h) {
	PlatformDeviceWin& device = canvas.getTopPlatformDevice();
	const SkBitmap& bitmap = device.accessBitmap(false);
	SkAutoLockPixels lock(bitmap);

	for (int cur_y = 0; cur_y < bitmap.height(); cur_y++) {
	for (int cur_x = 0; cur_x < bitmap.width(); cur_x++) {
	if (cur_x >= x && cur_x < x + w &&
	cur_y >= y && cur_y < y + h) {
	// Inside the square should be rect_color
	if (*bitmap.getAddr32(cur_x, cur_y) != rect_color)
	return false;
	} else {
	// Outside the square should be canvas_color
	if (*bitmap.getAddr32(cur_x, cur_y) != canvas_color)
	return false;
	}
	}
	}
	return true;
	}

	// Checks whether there is a white canvas with a black square at the given
	// location in pixels (not in the canvas coordinate system).
	// TODO(ericroman): rename Square to Rect
	bool VerifyBlackSquare(const PlatformCanvasWin& canvas, int x, int y, int w, int h) {
	return VerifyRect(canvas, SK_ColorWHITE, SK_ColorBLACK, x, y, w, h);
	}

	// Check that every pixel in the canvas is a single color.
	bool VerifyCanvasColor(const PlatformCanvasWin& canvas, uint32_t canvas_color) {
	return VerifyRect(canvas, canvas_color, 0, 0, 0, 0, 0);
	}

	void DrawGDIRect(PlatformCanvasWin& canvas, int x, int y, int w, int h) {
	HDC dc = canvas.beginPlatformPaint();

	RECT inner_rc;
	inner_rc.left = x;
	inner_rc.top = y;
	inner_rc.right = x + w;
	inner_rc.bottom = y + h;
	FillRect(dc, &inner_rc, reinterpret_cast<HBRUSH>(GetStockObject(BLACK_BRUSH)));

	canvas.endPlatformPaint();
	}

	// Clips the contents of the canvas to the given rectangle. This will be
	// intersected with any existing clip.
	void AddClip(PlatformCanvasWin& canvas, int x, int y, int w, int h) {
	SkRect rect;
	rect.set(SkIntToScalar(x), SkIntToScalar(y),
	SkIntToScalar(x + w), SkIntToScalar(y + h));
	canvas.clipRect(rect);
	}

	class LayerSaver {
	public:
	LayerSaver(PlatformCanvasWin& canvas, int x, int y, int w, int h)
	: canvas_(canvas),
	x_(x),
	y_(y),
	w_(w),
	h_(h) {
	SkRect bounds;
	bounds.set(SkIntToScalar(x_), SkIntToScalar(y_),
	SkIntToScalar(right()), SkIntToScalar(bottom()));
	canvas_.saveLayer(&bounds, NULL);
	}

	~LayerSaver() {
	canvas_.getTopPlatformDevice().fixupAlphaBeforeCompositing();
	canvas_.restore();
	}

	int x() const { return x_; }
	int y() const { return y_; }
	int w() const { return w_; }
	int h() const { return h_; }

	// Returns the EXCLUSIVE far bounds of the layer.
	int right() const { return x_ + w_; }
	int bottom() const { return y_ + h_; }

	private:
	PlatformCanvasWin& canvas_;
	int x_, y_, w_, h_;
	};

	// Size used for making layers in many of the below tests.
	const int kLayerX = 2;
	const int kLayerY = 3;
	const int kLayerW = 9;
	const int kLayerH = 7;

	// Size used by some tests to draw a rectangle inside the layer.
	const int kInnerX = 4;
	const int kInnerY = 5;
	const int kInnerW = 2;
	const int kInnerH = 3;

	}

	// This just checks that our checking code is working properly, it just uses
	// regular skia primitives.
	TEST(PlatformCanvasWin, SkLayer) {
	// Create the canvas initialized to opaque white.
	PlatformCanvasWin canvas(16, 16, true);
	canvas.drawColor(SK_ColorWHITE);

	// Make a layer and fill it completely to make sure that the bounds are
	// correct.
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	canvas.drawColor(SK_ColorBLACK);
	}
	EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX, kLayerY, kLayerW, kLayerH));
	}

	// Test the GDI clipping.
	TEST(PlatformCanvasWin, GDIClipRegion) {
	// Initialize a white canvas
	PlatformCanvasWin canvas(16, 16, true);
	canvas.drawColor(SK_ColorWHITE);
	EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));

	// Test that initially the canvas has no clip region, by filling it
	// with a black rectangle.
	// Note: Don't use LayerSaver, since internally it sets a clip region.
	DrawGDIRect(canvas, 0, 0, 16, 16);
	canvas.getTopPlatformDevice().fixupAlphaBeforeCompositing();
	EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorBLACK));

	// Test that intersecting disjoint clip rectangles sets an empty clip region
	canvas.drawColor(SK_ColorWHITE);
	EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
	{
	LayerSaver layer(canvas, 0, 0, 16, 16);
	AddClip(canvas, 2, 3, 4, 5);
	AddClip(canvas, 4, 9, 10, 10);
	DrawGDIRect(canvas, 0, 0, 16, 16);
	}
	EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
	}

	// Test the layers get filled properly by GDI.
	TEST(PlatformCanvasWin, GDILayer) {
	// Create the canvas initialized to opaque white.
	PlatformCanvasWin canvas(16, 16, true);

	// Make a layer and fill it completely to make sure that the bounds are
	// correct.
	canvas.drawColor(SK_ColorWHITE);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	DrawGDIRect(canvas, 0, 0, 100, 100);
	}
	EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX, kLayerY, kLayerW, kLayerH));

	// Make a layer and fill it partially to make sure the translation is correct.
	canvas.drawColor(SK_ColorWHITE);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	}
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));

	// Add a clip on the layer and fill to make sure clip is correct.
	canvas.drawColor(SK_ColorWHITE);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	canvas.save();
	AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	DrawGDIRect(canvas, 0, 0, 100, 100);
	canvas.restore();
	}
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));

	// Add a clip and then make the layer to make sure the clip is correct.
	canvas.drawColor(SK_ColorWHITE);
	canvas.save();
	AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	DrawGDIRect(canvas, 0, 0, 100, 100);
	}
	canvas.restore();
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX, kInnerY, kInnerW, kInnerH));
	}

	// Test that translation + make layer works properly.
	TEST(PlatformCanvasWin, GDITranslateLayer) {
	// Create the canvas initialized to opaque white.
	PlatformCanvasWin canvas(16, 16, true);

	// Make a layer and fill it completely to make sure that the bounds are
	// correct.
	canvas.drawColor(SK_ColorWHITE);
	canvas.save();
	canvas.translate(1, 1);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	DrawGDIRect(canvas, 0, 0, 100, 100);
	}
	canvas.restore();
	EXPECT_TRUE(VerifyBlackSquare(canvas, kLayerX + 1, kLayerY + 1,
	kLayerW, kLayerH));

	// Translate then make the layer.
	canvas.drawColor(SK_ColorWHITE);
	canvas.save();
	canvas.translate(1, 1);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	}
	canvas.restore();
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 1, kInnerY + 1,
	kInnerW, kInnerH));

	// Make the layer then translate.
	canvas.drawColor(SK_ColorWHITE);
	canvas.save();
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	canvas.translate(1, 1);
	DrawGDIRect(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	}
	canvas.restore();
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 1, kInnerY + 1,
	kInnerW, kInnerH));

	// Translate both before and after, and have a clip.
	canvas.drawColor(SK_ColorWHITE);
	canvas.save();
	canvas.translate(1, 1);
	{
	LayerSaver layer(canvas, kLayerX, kLayerY, kLayerW, kLayerH);
	canvas.translate(1, 1);
	AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
	DrawGDIRect(canvas, 0, 0, 100, 100);
	}
	canvas.restore();
	EXPECT_TRUE(VerifyBlackSquare(canvas, kInnerX + 2, kInnerY + 2,
	kInnerW, kInnerH));
	}

	} // namespace