ui/gfx/test/gfx_util.cc

   1 // Copyright 2014 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 #include "ui/gfx/test/gfx_util.h"
   6
   7 #include <iomanip>
   8 #include <sstream>
   9 #include <string>
  10
  11 namespace gfx {
  12
  13 namespace {
  14
  15 std::string ColorAsString(SkColor color) {
  16   std::ostringstream stream;
  17   stream << std::hex << std::uppercase << "#" << std::setfill('0')
  18          << std::setw(2) << SkColorGetA(color)
  19          << std::setw(2) << SkColorGetR(color)
  20          << std::setw(2) << SkColorGetG(color)
  21          << std::setw(2) << SkColorGetB(color);
  22   return stream.str();
  23 }
  24
  25 bool FloatAlmostEqual(float a, float b) {
  26   // FloatLE is the gtest predicate for less than or almost equal to.
  27   return ::testing::FloatLE("a", "b", a, b) &&
  28          ::testing::FloatLE("b", "a", b, a);
  29 }
  30
  31 }  // namespace
  32
  33 ::testing::AssertionResult AssertBoxFloatEqual(const char* lhs_expr,
  34                                                const char* rhs_expr,
  35                                                const BoxF& lhs,
  36                                                const BoxF& rhs) {
  37   if (FloatAlmostEqual(lhs.x(), rhs.x()) &&
  38       FloatAlmostEqual(lhs.y(), rhs.y()) &&
  39       FloatAlmostEqual(lhs.z(), rhs.z()) &&
  40       FloatAlmostEqual(lhs.width(), rhs.width()) &&
  41       FloatAlmostEqual(lhs.height(), rhs.height()) &&
  42       FloatAlmostEqual(lhs.depth(), rhs.depth())) {
  43     return ::testing::AssertionSuccess();
  44   }
  45   return ::testing::AssertionFailure() << "Value of: " << rhs_expr
  46                                        << "\n  Actual: " << rhs.ToString()
  47                                        << "\nExpected: " << lhs_expr
  48                                        << "\nWhich is: " << lhs.ToString();
  49 }
  50
  51 ::testing::AssertionResult AssertSkColorsEqual(const char* lhs_expr,
  52                                                const char* rhs_expr,
  53                                                SkColor lhs,
  54                                                SkColor rhs) {
  55   if (lhs == rhs) {
  56     return ::testing::AssertionSuccess();
  57   }
  58   return ::testing::AssertionFailure() << "Value of: " << rhs_expr
  59                                        << "\n  Actual: " << ColorAsString(rhs)
  60                                        << "\nExpected: " << lhs_expr
  61                                        << "\nWhich is: " << ColorAsString(lhs);
  62 }
  63
  64 }  // namespace gfx