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Diffstat (limited to 'net/disk_cache/mapped_file_unittest.cc')
-rw-r--r-- | net/disk_cache/mapped_file_unittest.cc | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/net/disk_cache/mapped_file_unittest.cc b/net/disk_cache/mapped_file_unittest.cc new file mode 100644 index 0000000..84d7fec --- /dev/null +++ b/net/disk_cache/mapped_file_unittest.cc @@ -0,0 +1,139 @@ +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "base/file_util.h" +#include "net/disk_cache/disk_cache_test_util.h" +#include "net/disk_cache/mapped_file.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace { + +int g_cache_tests_max_id; +volatile int g_cache_tests_received; +volatile bool g_cache_tests_error; + +// Implementation of FileIOCallback for the tests. +class FileCallbackTest: public disk_cache::FileIOCallback { + public: + explicit FileCallbackTest(int id) : id_(id), reuse_(0) {} + explicit FileCallbackTest(int id, bool reuse) + : id_(id), reuse_(reuse_ ? 0 : 1) {} + ~FileCallbackTest() {} + + virtual void OnFileIOComplete(int bytes_copied); + private: + int id_; + int reuse_; +}; + +void FileCallbackTest::OnFileIOComplete(int bytes_copied) { + if (id_ > g_cache_tests_max_id) { + NOTREACHED(); + g_cache_tests_error = true; + } else if (reuse_) { + DCHECK(1 == reuse_); + if (2 == reuse_) + g_cache_tests_error = true; + reuse_++; + } + + g_cache_tests_received++; +} + +// Wait up to 2 secs without callbacks, or until we receive expected callbacks. +void WaitForCallbacks(int expected) { + if (!expected) + return; + + int iterations = 0; + int last = 0; + while (iterations < 40) { + SleepEx(50, TRUE); + if (expected == g_cache_tests_received) + return; + if (last == g_cache_tests_received) + iterations++; + else + iterations = 0; + } +} + +} // namespace + +TEST(DiskCacheTest, MappedFile_SyncIO) { + std::wstring filename = GetCachePath(); + file_util::AppendToPath(&filename, L"a_test"); + scoped_refptr<disk_cache::MappedFile> file(new disk_cache::MappedFile); + ASSERT_TRUE(CreateCacheTestFile(filename.c_str())); + ASSERT_TRUE(file->Init(filename, 8192)); + + char buffer1[20]; + char buffer2[20]; + CacheTestFillBuffer(buffer1, sizeof(buffer1), false); + strcpy_s(buffer1, "the data"); + EXPECT_TRUE(file->Write(buffer1, sizeof(buffer1), 8192)); + EXPECT_TRUE(file->Read(buffer2, sizeof(buffer2), 8192)); + EXPECT_STREQ(buffer1, buffer2); +} + +TEST(DiskCacheTest, MappedFile_AsyncIO) { + std::wstring filename = GetCachePath(); + file_util::AppendToPath(&filename, L"a_test"); + scoped_refptr<disk_cache::MappedFile> file(new disk_cache::MappedFile); + ASSERT_TRUE(CreateCacheTestFile(filename.c_str())); + ASSERT_TRUE(file->Init(filename, 8192)); + + FileCallbackTest callback(1); + g_cache_tests_error = false; + g_cache_tests_max_id = 0; + g_cache_tests_received = 0; + + char buffer1[20]; + char buffer2[20]; + CacheTestFillBuffer(buffer1, sizeof(buffer1), false); + strcpy_s(buffer1, "the data"); + bool completed; + EXPECT_TRUE(file->Write(buffer1, sizeof(buffer1), 1024 * 1024, &callback, + &completed)); + int expected = completed ? 0 : 1; + + g_cache_tests_max_id = 1; + WaitForCallbacks(expected); + + EXPECT_TRUE(file->Read(buffer2, sizeof(buffer2), 1024 * 1024, &callback, + &completed)); + if (!completed) + expected++; + + WaitForCallbacks(expected); + + EXPECT_EQ(expected, g_cache_tests_received); + EXPECT_FALSE(g_cache_tests_error); + EXPECT_STREQ(buffer1, buffer2); +} |