Add the copresence DirectiveHandler.

components/copresence/common/timed_map_unittest.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/basictypes.h"
+#include "base/macros.h"
+#include "base/message_loop/message_loop.h"
+#include "components/copresence/common/timed_map.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+struct Value {
+  Value() : value(0) {}
+  explicit Value(int new_value) : value(new_value) {}
+
+  int value;
+};
+
+}  // namespace
+
+class TimedMapTest : public testing::Test {
+ public:
+  TimedMapTest() {}
+
+ private:
+  base::MessageLoop ml_;

[xiyuan, 2014/07/29 00:22:26]

nit: Seems not used. If it is used, give it a better name, e.g. loop_,
message_loop_ etc

[rkc, 2014/07/29 00:33:36]

It needs to exist so we have a message loop that the timer can use; otherwise
it'll crash.
Renamed and comment added.

+
+  DISALLOW_COPY_AND_ASSIGN(TimedMapTest);
+};
+
+TEST_F(TimedMapTest, Basic) {
+  typedef copresence::TimedMap<int, Value> Map;
+  Map map(base::TimeDelta::FromSeconds(0x7331), 3);
+
+  EXPECT_FALSE(map.HasKey(0));
+  EXPECT_EQ(0, map.GetValue(0).value);
+
+  map.Add(0x1337, Value(0x7331));
+  EXPECT_TRUE(map.HasKey(0x1337));
+  EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
+
+  map.Add(0xbaad, Value(0xf00d));
+  EXPECT_TRUE(map.HasKey(0xbaad));
+  EXPECT_EQ(0xf00d, map.GetValue(0xbaad).value);
+  EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
+
+  map.Add(0x1234, Value(0x5678));
+  EXPECT_TRUE(map.HasKey(0x1234));
+  EXPECT_TRUE(map.HasKey(0xbaad));
+  EXPECT_TRUE(map.HasKey(0x1337));
+
+  EXPECT_EQ(0x5678, map.GetValue(0x1234).value);
+  EXPECT_EQ(0xf00d, map.GetValue(0xbaad).value);
+  EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
+}
+
+TEST_F(TimedMapTest, ValueReplacement) {
+  typedef copresence::TimedMap<int, Value> Map;
+  Map map(base::TimeDelta::FromSeconds(0x7331), 10);
+
+  map.Add(0x1337, Value(0x7331));
+  EXPECT_TRUE(map.HasKey(0x1337));
+  EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
+
+  map.Add(0xbaad, Value(0xf00d));
+  EXPECT_TRUE(map.HasKey(0xbaad));
+  EXPECT_EQ(0xf00d, map.GetValue(0xbaad).value);
+
+  map.Add(0x1337, Value(0xd00d));
+  EXPECT_TRUE(map.HasKey(0x1337));
+  EXPECT_EQ(0xd00d, map.GetValue(0x1337).value);
+}
+
+TEST_F(TimedMapTest, SizeEvict) {
+  typedef copresence::TimedMap<int, Value> Map;
+  Map two_element_map(base::TimeDelta::FromSeconds(0x7331), 2);
+
+  two_element_map.Add(0x1337, Value(0x7331));
+  EXPECT_TRUE(two_element_map.HasKey(0x1337));
+  EXPECT_EQ(0x7331, two_element_map.GetValue(0x1337).value);
+
+  two_element_map.Add(0xbaad, Value(0xf00d));
+  EXPECT_TRUE(two_element_map.HasKey(0xbaad));
+  EXPECT_EQ(0xf00d, two_element_map.GetValue(0xbaad).value);
+
+  two_element_map.Add(0x1234, Value(0x5678));
+  EXPECT_TRUE(two_element_map.HasKey(0x1234));
+  EXPECT_EQ(0xf00d, two_element_map.GetValue(0xbaad).value);
+
+  EXPECT_FALSE(two_element_map.HasKey(0x1337));
+  EXPECT_EQ(0, two_element_map.GetValue(0x1337).value);
+}
+
+// TODO(rkc): Figure out how to test timed eviction and add a TimedEvict test.