85 lines
3.3 KiB
C++
85 lines
3.3 KiB
C++
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// Copyright 2015 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/disk_cache/blockfile/stats.h"
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#include <memory>
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#include "testing/gtest/include/gtest/gtest.h"
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TEST(DiskCacheStatsTest, Init) {
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disk_cache::Stats stats;
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EXPECT_TRUE(stats.Init(nullptr, 0, disk_cache::Addr()));
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EXPECT_EQ(0, stats.GetCounter(disk_cache::Stats::TRIM_ENTRY));
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}
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TEST(DiskCacheStatsTest, InitWithEmptyBuffer) {
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disk_cache::Stats stats;
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int required_len = stats.StorageSize();
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auto storage = std::make_unique<char[]>(required_len);
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memset(storage.get(), 0, required_len);
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ASSERT_TRUE(stats.Init(storage.get(), required_len, disk_cache::Addr()));
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EXPECT_EQ(0, stats.GetCounter(disk_cache::Stats::TRIM_ENTRY));
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}
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TEST(DiskCacheStatsTest, FailsInit) {
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disk_cache::Stats stats;
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int required_len = stats.StorageSize();
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auto storage = std::make_unique<char[]>(required_len);
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memset(storage.get(), 0, required_len);
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// Try a small buffer.
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EXPECT_LT(200, required_len);
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disk_cache::Addr addr;
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EXPECT_FALSE(stats.Init(storage.get(), 200, addr));
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// Try a buffer with garbage.
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memset(storage.get(), 'a', required_len);
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EXPECT_FALSE(stats.Init(storage.get(), required_len, addr));
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}
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TEST(DiskCacheStatsTest, SaveRestore) {
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auto stats = std::make_unique<disk_cache::Stats>();
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disk_cache::Addr addr(5);
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ASSERT_TRUE(stats->Init(nullptr, 0, addr));
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stats->SetCounter(disk_cache::Stats::CREATE_ERROR, 11);
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stats->SetCounter(disk_cache::Stats::DOOM_ENTRY, 13);
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stats->OnEvent(disk_cache::Stats::MIN_COUNTER);
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stats->OnEvent(disk_cache::Stats::TRIM_ENTRY);
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stats->OnEvent(disk_cache::Stats::DOOM_RECENT);
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int required_len = stats->StorageSize();
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auto storage = std::make_unique<char[]>(required_len);
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disk_cache::Addr out_addr;
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int real_len = stats->SerializeStats(storage.get(), required_len, &out_addr);
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EXPECT_GE(required_len, real_len);
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EXPECT_EQ(out_addr, addr);
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stats = std::make_unique<disk_cache::Stats>();
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ASSERT_TRUE(stats->Init(storage.get(), real_len, addr));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::MIN_COUNTER));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::TRIM_ENTRY));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::DOOM_RECENT));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::OPEN_HIT));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::READ_DATA));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::LAST_REPORT_TIMER));
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EXPECT_EQ(11, stats->GetCounter(disk_cache::Stats::CREATE_ERROR));
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EXPECT_EQ(13, stats->GetCounter(disk_cache::Stats::DOOM_ENTRY));
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// Now pass the whole buffer. It shoulod not matter that there is unused
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// space at the end.
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stats = std::make_unique<disk_cache::Stats>();
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ASSERT_TRUE(stats->Init(storage.get(), required_len, addr));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::MIN_COUNTER));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::TRIM_ENTRY));
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EXPECT_EQ(1, stats->GetCounter(disk_cache::Stats::DOOM_RECENT));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::OPEN_HIT));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::READ_DATA));
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EXPECT_EQ(0, stats->GetCounter(disk_cache::Stats::LAST_REPORT_TIMER));
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EXPECT_EQ(11, stats->GetCounter(disk_cache::Stats::CREATE_ERROR));
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EXPECT_EQ(13, stats->GetCounter(disk_cache::Stats::DOOM_ENTRY));
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}
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