ui/gfx/shadow_value_unittest.cc

   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 #include "base/basictypes.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7 #include "ui/gfx/geometry/insets.h"
   8 #include "ui/gfx/geometry/vector2d.h"
   9 #include "ui/gfx/shadow_value.h"
  10
  11 namespace gfx {
  12
  13 TEST(ShadowValueTest, GetMargin) {
  14   const struct TestCase {
  15     Insets expected_margin;
  16     size_t shadow_count;
  17     ShadowValue shadows[2];
  18   } kTestCases[] = {
  19     {
  20       Insets(), 0, {},
  21     },
  22     {
  23       Insets(-2, -2, -2, -2),
  24       1,
  25       { ShadowValue(gfx::Vector2d(0, 0), 4, 0), },
  26     },
  27     {
  28       Insets(0, -1, -4, -3),
  29       1,
  30       { ShadowValue(gfx::Vector2d(1, 2), 4, 0), },
  31     },
  32     {
  33       Insets(-4, -3, 0, -1),
  34       1,
  35       { ShadowValue(gfx::Vector2d(-1, -2), 4, 0), },
  36     },
  37     {
  38       Insets(0, -1, -5, -4),
  39       2,
  40       {
  41         ShadowValue(gfx::Vector2d(1, 2), 4, 0),
  42         ShadowValue(gfx::Vector2d(2, 3), 4, 0),
  43       },
  44     },
  45     {
  46       Insets(-4, -3, -5, -4),
  47       2,
  48       {
  49         ShadowValue(gfx::Vector2d(-1, -2), 4, 0),
  50         ShadowValue(gfx::Vector2d(2, 3), 4, 0),
  51       },
  52     },
  53   };
  54
  55   for (size_t i = 0; i < arraysize(kTestCases); ++i) {
  56     Insets margin = ShadowValue::GetMargin(
  57         ShadowValues(kTestCases[i].shadows,
  58                      kTestCases[i].shadows + kTestCases[i].shadow_count));
  59
  60     EXPECT_EQ(kTestCases[i].expected_margin, margin) << " i=" << i;
  61   }
  62 }
  63
  64 }  // namespace gfx