ui/gfx/image/image_unittest_util.h

   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
  14 namespace gfx {
  15 namespace test {
  16
  17 #if defined(OS_IOS)
  18 typedef UIImage* PlatformImage;
  19 #elif defined(OS_MACOSX)
  20 typedef NSImage* PlatformImage;
  21 #else
  22 typedef gfx::ImageSkia PlatformImage;
  23 #endif
  24
  25 std::vector<float> Get1xAnd2xScales();
  26
  27 // Create a bitmap of |width|x|height|.
  28 const 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.
  32 gfx::ImageSkia CreateImageSkia(int width, int height);
  33
  34 // Returns PNG encoded bytes for a bitmap of |edge_size|x|edge_size|.
  35 scoped_refptr<base::RefCountedMemory> CreatePNGBytes(int edge_size);
  36
  37 // TODO(rohitrao): Remove the no-argument version of CreateImage().
  38 gfx::Image CreateImage();
  39 gfx::Image CreateImage(int width, int height);
  40
  41 // Returns true if the images are equal. Converts the images to ImageSkia to
  42 // compare them.
  43 bool IsEqual(const gfx::Image& image1, const gfx::Image& image2);
  44
  45 bool IsEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2);
  46
  47 bool 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.
  52 void 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.
  61 bool ImageSkiaStructureMatches(
  62     const gfx::ImageSkia& image_skia,
  63     int width,
  64     int height,
  65     const std::vector<float>& scale_factors);
  66
  67 bool IsEmpty(const gfx::Image& image);
  68
  69 PlatformImage CreatePlatformImage();
  70
  71 gfx::Image::RepresentationType GetPlatformRepresentationType();
  72
  73 PlatformImage ToPlatformType(const gfx::Image& image);
  74 PlatformImage CopyPlatformType(const gfx::Image& image);
  75
  76 SkColor GetPlatformImageColor(PlatformImage image, int x, int y);
  77 void CheckColors(SkColor color1, SkColor color2);
  78 void CheckIsTransparent(SkColor color);
  79
  80 bool IsPlatformImageValid(PlatformImage image);
  81
  82 bool PlatformImagesEqual(PlatformImage image1, PlatformImage image2);
  83
  84 }  // namespace test
  85 }  // namespace gfx
  86
  87 #endif  // UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_