1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Because the unit tests for gfx::Image are spread across multiple
6// implementation files, this header contains the reusable components.
7
8#ifndef UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
9#define UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
10
11#include "ui/gfx/image/image.h"
12#include "third_party/skia/include/core/SkColor.h"
13
14namespace gfx {
15namespace test {
16
17#if defined(OS_IOS)
18typedef UIImage* PlatformImage;
19#elif defined(OS_MACOSX)
20typedef NSImage* PlatformImage;
21#else
22typedef gfx::ImageSkia PlatformImage;
23#endif
24
25std::vector<float> Get1xAnd2xScales();
26
27// Create a bitmap of |width|x|height|.
28const SkBitmap CreateBitmap(int width, int height);
29
30// Creates an ImageSkia of |width|x|height| DIP with bitmap data for an
31// arbitrary scale factor.
32gfx::ImageSkia CreateImageSkia(int width, int height);
33
34// Returns PNG encoded bytes for a bitmap of |edge_size|x|edge_size|.
35scoped_refptr<base::RefCountedMemory> CreatePNGBytes(int edge_size);
36
37// TODO(rohitrao): Remove the no-argument version of CreateImage().
38gfx::Image CreateImage();
39gfx::Image CreateImage(int width, int height);
40
41// Returns true if the images are equal. Converts the images to ImageSkia to
42// compare them.
43bool IsEqual(const gfx::Image& image1, const gfx::Image& image2);
44
45bool IsEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2);
46
47bool IsEqual(const scoped_refptr<base::RefCountedMemory>& bytes,
48             const SkBitmap& bitmap);
49
50// An image which was not successfully decoded to PNG should be a red bitmap.
51// Fails if the bitmap is not red.
52void CheckImageIndicatesPNGDecodeFailure(const gfx::Image& image);
53
54// Returns true if the structure of |image_skia| matches the structure
55// described by |width|, |height|, and |scale_factors|.
56// The structure matches if:
57// - |image_skia| is non null.
58// - |image_skia| has ImageSkiaReps of |scale_factors|.
59// - Each of the ImageSkiaReps has a pixel size of |image_skia|.size() *
60//   scale_factor.
61bool ImageSkiaStructureMatches(
62    const gfx::ImageSkia& image_skia,
63    int width,
64    int height,
65    const std::vector<float>& scale_factors);
66
67bool IsEmpty(const gfx::Image& image);
68
69PlatformImage CreatePlatformImage();
70
71gfx::Image::RepresentationType GetPlatformRepresentationType();
72
73PlatformImage ToPlatformType(const gfx::Image& image);
74PlatformImage CopyPlatformType(const gfx::Image& image);
75
76SkColor GetPlatformImageColor(PlatformImage image, int x, int y);
77void CheckColors(SkColor color1, SkColor color2);
78void CheckIsTransparent(SkColor color);
79
80bool IsPlatformImageValid(PlatformImage image);
81
82bool PlatformImagesEqual(PlatformImage image1, PlatformImage image2);
83
84}  // namespace test
85}  // namespace gfx
86
87#endif  // UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
88