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