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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/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "net/disk_cache/cache_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"

namespace disk_cache {

class CacheUtilTest : public PlatformTest {
 public:
  void SetUp() override {
    PlatformTest::SetUp();
    ASSERT_TRUE(tmp_dir_.CreateUniqueTempDir());
    cache_dir_ = tmp_dir_.path().Append(FILE_PATH_LITERAL("Cache"));
    file1_ = base::FilePath(cache_dir_.Append(FILE_PATH_LITERAL("file01")));
    file2_ = base::FilePath(cache_dir_.Append(FILE_PATH_LITERAL(".file02")));
    dir1_ = base::FilePath(cache_dir_.Append(FILE_PATH_LITERAL("dir01")));
    file3_ = base::FilePath(dir1_.Append(FILE_PATH_LITERAL("file03")));
    ASSERT_TRUE(base::CreateDirectory(cache_dir_));
    FILE *fp = base::OpenFile(file1_, "w");
    ASSERT_TRUE(fp != NULL);
    base::CloseFile(fp);
    fp = base::OpenFile(file2_, "w");
    ASSERT_TRUE(fp != NULL);
    base::CloseFile(fp);
    ASSERT_TRUE(base::CreateDirectory(dir1_));
    fp = base::OpenFile(file3_, "w");
    ASSERT_TRUE(fp != NULL);
    base::CloseFile(fp);
    dest_dir_ = tmp_dir_.path().Append(FILE_PATH_LITERAL("old_Cache_001"));
    dest_file1_ = base::FilePath(dest_dir_.Append(FILE_PATH_LITERAL("file01")));
    dest_file2_ =
        base::FilePath(dest_dir_.Append(FILE_PATH_LITERAL(".file02")));
    dest_dir1_ = base::FilePath(dest_dir_.Append(FILE_PATH_LITERAL("dir01")));
  }

 protected:
  base::ScopedTempDir tmp_dir_;
  base::FilePath cache_dir_;
  base::FilePath file1_;
  base::FilePath file2_;
  base::FilePath dir1_;
  base::FilePath file3_;
  base::FilePath dest_dir_;
  base::FilePath dest_file1_;
  base::FilePath dest_file2_;
  base::FilePath dest_dir1_;
};

TEST_F(CacheUtilTest, MoveCache) {
  EXPECT_TRUE(disk_cache::MoveCache(cache_dir_, dest_dir_));
  EXPECT_TRUE(base::PathExists(dest_dir_));
  EXPECT_TRUE(base::PathExists(dest_file1_));
  EXPECT_TRUE(base::PathExists(dest_file2_));
  EXPECT_TRUE(base::PathExists(dest_dir1_));
#if defined(OS_CHROMEOS)
  EXPECT_TRUE(base::PathExists(cache_dir_)); // old cache dir stays
#else
  EXPECT_FALSE(base::PathExists(cache_dir_)); // old cache is gone
#endif
  EXPECT_FALSE(base::PathExists(file1_));
  EXPECT_FALSE(base::PathExists(file2_));
  EXPECT_FALSE(base::PathExists(dir1_));
}

TEST_F(CacheUtilTest, DeleteCache) {
  disk_cache::DeleteCache(cache_dir_, false);
  EXPECT_TRUE(base::PathExists(cache_dir_)); // cache dir stays
  EXPECT_FALSE(base::PathExists(dir1_));
  EXPECT_FALSE(base::PathExists(file1_));
  EXPECT_FALSE(base::PathExists(file2_));
  EXPECT_FALSE(base::PathExists(file3_));
}

TEST_F(CacheUtilTest, DeleteCacheAndDir) {
  disk_cache::DeleteCache(cache_dir_, true);
  EXPECT_FALSE(base::PathExists(cache_dir_)); // cache dir is gone
  EXPECT_FALSE(base::PathExists(dir1_));
  EXPECT_FALSE(base::PathExists(file1_));
  EXPECT_FALSE(base::PathExists(file2_));
  EXPECT_FALSE(base::PathExists(file3_));
}

TEST_F(CacheUtilTest, DeleteCacheFile) {
  EXPECT_TRUE(disk_cache::DeleteCacheFile(file1_));
  EXPECT_FALSE(base::PathExists(file1_));
  EXPECT_TRUE(base::PathExists(cache_dir_)); // cache dir stays
  EXPECT_TRUE(base::PathExists(dir1_));
  EXPECT_TRUE(base::PathExists(file3_));
}

}  // namespace disk_cache