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::trace_event::TracedValue> value =
  17       new base::trace_event::TracedValue();
  18   list.AddToTracedValue("list_value", value.get());
  19   return value->ToString();
  20 }
  21
  22 TEST(RenderingStatsTest, TimeDeltaListEmpty) {
  23   RenderingStats::TimeDeltaList time_delta_list;
  24   EXPECT_EQ("{\"list_value\":[]}", ToString(time_delta_list));
  25 }
  26
  27 TEST(RenderingStatsTest, TimeDeltaListNonEmpty) {
  28   RenderingStats::TimeDeltaList time_delta_list;
  29   time_delta_list.Append(base::TimeDelta::FromMilliseconds(234));
  30   time_delta_list.Append(base::TimeDelta::FromMilliseconds(827));
  31
  32   EXPECT_EQ("{\"list_value\":[234.0,827.0]}", ToString(time_delta_list));
  33 }
  34
  35 TEST(RenderingStatsTest, TimeDeltaListAdd) {
  36   RenderingStats::TimeDeltaList time_delta_list_a;
  37   time_delta_list_a.Append(base::TimeDelta::FromMilliseconds(810));
  38   time_delta_list_a.Append(base::TimeDelta::FromMilliseconds(32));
  39
  40   RenderingStats::TimeDeltaList time_delta_list_b;
  41   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(43));
  42   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(938));
  43   time_delta_list_b.Append(base::TimeDelta::FromMilliseconds(2));
  44
  45   time_delta_list_a.Add(time_delta_list_b);
  46   EXPECT_EQ("{\"list_value\":[810.0,32.0,43.0,938.0,2.0]}",
  47             ToString(time_delta_list_a));
  48 }
  49
  50 }  // namespace
  51 }  // namespace cc