cc/debug/rendering_stats_unittest.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 <string>
   6
   7 #include "base/time/time.h"
   8 #include "base/values.h"
   9 #include "cc/debug/rendering_stats.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace cc {
  13 namespace {
  14
  15 static std::string ToString(const RenderingStats::TimeDeltaList& list) {
  16   scoped_refptr<base::debug::TracedValue> value =
  17       new base::debug::TracedValue();
  18   value->BeginArray("list_value");
  19   list.AddToTracedValue(value.get());
  20   value->EndArray();
  21   return value->ToString();
  22 }
  23
  24 TEST(RenderingStatsTest, TimeDeltaListEmpty) {
  25   RenderingStats::TimeDeltaList time_delta_list;
  26   EXPECT_EQ("{\"list_value\":[]}", ToString(time_delta_list));
  27 }
  28
  29 TEST(RenderingStatsTest, TimeDeltaListNonEmpty) {
  30   RenderingStats::TimeDeltaList time_delta_list;
  31   time_delta_list.Append(base::TimeDelta::FromMilliseconds(234));
  32   time_delta_list.Append(base::TimeDelta::FromMilliseconds(827));
  33
  34   EXPECT_EQ("{\"list_value\":[234.0,827.0]}", ToString(time_delta_list));
  35 }
  36
  37 TEST(RenderingStatsTest, TimeDeltaListAdd) {
  38   RenderingStats::TimeDeltaList time_delta_list_a;
  39   time_delta_list_a.Append(base::TimeDelta::FromMilliseconds(810));
  40   time_delta_list_a.Append(base::TimeDelta::FromMilliseconds(32));
  41
  42   RenderingStats::TimeDeltaList time_delta_list_b;
  43   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(43));
  44   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(938));
  45   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(2));
  46
  47   time_delta_list_a.Add(time_delta_list_b);
  48   EXPECT_EQ("{\"list_value\":[810.0,32.0,43.0,938.0,2.0]}",
  49             ToString(time_delta_list_a));
  50 }
  51
  52 }  // namespace
  53 }  // namespace cc