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// Copyright 2015 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 "net/disk_cache/blockfile/stats.h"
#include "base/memory/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(DiskCacheStatsTest, Init) {
disk_cache::Stats stats;
EXPECT_TRUE(stats.Init(nullptr, 0, disk_cache::Addr()));
EXPECT_EQ(0, stats.GetCounter(disk_cache::Stats::TRIM_ENTRY));
}
TEST(DiskCacheStatsTest, InitWithEmptyBuffer) {
disk_cache::Stats stats;
int required_len = stats.StorageSize();
scoped_ptr<char[]> storage(new char[required_len]);
memset(storage.get(), 0, required_len);
ASSERT_TRUE(stats.Init(storage.get(), required_len, disk_cache::Addr()));
EXPECT_EQ(0, stats.GetCounter(disk_cache::Stats::TRIM_ENTRY));
}
TEST(DiskCacheStatsTest, FailsInit) {
disk_cache::Stats stats;
int required_len = stats.StorageSize();
scoped_ptr<char[]> storage(new char[required_len]);
memset(storage.get(), 0, required_len);
// Try a small buffer.
EXPECT_LT(200, required_len);
disk_cache::Addr addr;
EXPECT_FALSE(stats.Init(storage.get(), 200, addr));
// Try a buffer with garbage.
memset(storage.get(), 'a', required_len);
EXPECT_FALSE(stats.Init(storage.get(), required_len, addr));
}
TEST(DiskCacheStatsTest, SaveRestore) {
scoped_ptr<disk_cache::Stats> stats(new disk_cache::Stats);
disk_cache::Addr addr(5);
ASSERT_TRUE(stats->Init(nullptr, 0, addr));
stats->SetCounter(disk_cache::Stats::CREATE_ERROR, 11);
stats->SetCounter(disk_cache::Stats::DOOM_ENTRY, 13);
stats->OnEvent(disk_cache::Stats::MIN_COUNTER);
stats->OnEvent(disk_cache::Stats::TRIM_ENTRY);
stats->OnEvent(disk_cache::Stats::DOOM_RECENT);
int required_len = stats->StorageSize();
scoped_ptr<char[]> storage(new char[required_len]);
disk_cache::Addr out_addr;
int real_len = stats->SerializeStats(storage.get(), required_len, &out_addr);
EXPECT_GE(required_len, real_len);
EXPECT_EQ(out_addr, addr);
stats.reset(new disk_cache::Stats);
ASSERT_TRUE(stats->Init(storage.get(), real_len, addr));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::MIN_COUNTER));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::TRIM_ENTRY));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::DOOM_RECENT));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::OPEN_HIT));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::READ_DATA));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::LAST_REPORT_TIMER));
EXPECT_EQ(11, stats->GetCounter(disk_cache::Stats::CREATE_ERROR));
EXPECT_EQ(13, stats->GetCounter(disk_cache::Stats::DOOM_ENTRY));
// Now pass the whole buffer. It shoulod not matter that there is unused
// space at the end.
stats.reset(new disk_cache::Stats);
ASSERT_TRUE(stats->Init(storage.get(), required_len, addr));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::MIN_COUNTER));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::TRIM_ENTRY));
EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::DOOM_RECENT));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::OPEN_HIT));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::READ_DATA));
EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::LAST_REPORT_TIMER));
EXPECT_EQ(11, stats->GetCounter(disk_cache::Stats::CREATE_ERROR));
EXPECT_EQ(13, stats->GetCounter(disk_cache::Stats::DOOM_ENTRY));
}
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