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// 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 "base/test/simple_test_tick_clock.h"
#include "components/copresence/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:
using Map = copresence::TimedMap<int, Value>;
TimedMapTest() {}
private:
// Exists since the timer needs a message loop.
base::MessageLoop message_loop_;
DISALLOW_COPY_AND_ASSIGN(TimedMapTest);
};
TEST_F(TimedMapTest, Basic) {
Map map(base::TimeDelta::FromSeconds(9999), 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) {
Map map(base::TimeDelta::FromSeconds(9999), 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) {
Map two_element_map(base::TimeDelta::FromSeconds(9999), 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);
}
TEST_F(TimedMapTest, TimedEvict) {
const int kLargeTimeValueSeconds = 9999;
Map map(base::TimeDelta::FromSeconds(kLargeTimeValueSeconds), 2);
// The map takes ownership of the clock, but we retain a pointer.
base::SimpleTestTickClock* clock = new base::SimpleTestTickClock;
map.set_clock_for_testing(make_scoped_ptr<base::TickClock>(clock));
// Add value at T=0.
map.Add(0x1337, Value(0x7331));
EXPECT_TRUE(map.HasKey(0x1337));
EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
// Add value at T=kLargeTimeValueSeconds-1.
clock->Advance(base::TimeDelta::FromSeconds(kLargeTimeValueSeconds - 1));
map.Add(0xbaad, Value(0xf00d));
// Check values at T=kLargeTimeValueSeconds-1.
EXPECT_TRUE(map.HasKey(0xbaad));
EXPECT_EQ(0xf00d, map.GetValue(0xbaad).value);
EXPECT_TRUE(map.HasKey(0x1337));
EXPECT_EQ(0x7331, map.GetValue(0x1337).value);
// Check values at T=kLargeTimeValueSeconds.
clock->Advance(base::TimeDelta::FromSeconds(1));
EXPECT_FALSE(map.HasKey(0x1337));
EXPECT_EQ(0, map.GetValue(0x1337).value);
EXPECT_TRUE(map.HasKey(0xbaad));
EXPECT_EQ(0xf00d, map.GetValue(0xbaad).value);
// Check values at T=2*kLargeTimeValueSeconds
clock->Advance(base::TimeDelta::FromSeconds(kLargeTimeValueSeconds));
EXPECT_FALSE(map.HasKey(0xbaad));
EXPECT_EQ(0, map.GetValue(0xbaad).value);
}
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