1 files changed, 160 insertions, 0 deletions
diff --git a/chromium/content/browser/fileapi/file_system_usage_cache_unittest.cc b/chromium/content/browser/fileapi/file_system_usage_cache_unittest.cc
new file mode 100644
index 00000000000..0a54b891075
--- /dev/null
+++ b/chromium/content/browser/fileapi/file_system_usage_cache_unittest.cc
@@ -0,0 +1,160 @@
+// Copyright 2014 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 "webkit/browser/fileapi/file_system_usage_cache.h"
+
+#include "base/basictypes.h"
+#include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/message_loop/message_loop.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using fileapi::FileSystemUsageCache;
+
+namespace content {
+
+class FileSystemUsageCacheTest : public testing::Test {
+ public:
+  FileSystemUsageCacheTest()
+      : usage_cache_(base::MessageLoopProxy::current().get()) {}
+
+  virtual void SetUp() {
+    ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
+  }
+
+ protected:
+  base::FilePath GetUsageFilePath() {
+    return data_dir_.path().Append(FileSystemUsageCache::kUsageFileName);
+  }
+
+  FileSystemUsageCache* usage_cache() {
+    return &usage_cache_;
+  }
+
+ private:
+  base::MessageLoop message_loop_;
+  base::ScopedTempDir data_dir_;
+  FileSystemUsageCache usage_cache_;
+
+  DISALLOW_COPY_AND_ASSIGN(FileSystemUsageCacheTest);
+};
+
+TEST_F(FileSystemUsageCacheTest, CreateTest) {
+  base::FilePath usage_file_path = GetUsageFilePath();
+  EXPECT_TRUE(usage_cache()->UpdateUsage(usage_file_path, 0));
+}
+
+TEST_F(FileSystemUsageCacheTest, SetSizeTest) {
+  static const int64 size = 240122;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, size));
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(size, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, SetLargeSizeTest) {
+  static const int64 size = kint64max;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, size));
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(size, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, IncAndGetSizeTest) {
+  base::FilePath usage_file_path = GetUsageFilePath();
+  uint32 dirty = 0;
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, 98214));
+  ASSERT_TRUE(usage_cache()->IncrementDirty(usage_file_path));
+  EXPECT_TRUE(usage_cache()->GetDirty(usage_file_path, &dirty));
+  EXPECT_EQ(1u, dirty);
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(98214, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, DecAndGetSizeTest) {
+  static const int64 size = 71839;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, size));
+  // DecrementDirty for dirty = 0 is invalid. It returns false.
+  ASSERT_FALSE(usage_cache()->DecrementDirty(usage_file_path));
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(size, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, IncDecAndGetSizeTest) {
+  static const int64 size = 198491;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, size));
+  ASSERT_TRUE(usage_cache()->IncrementDirty(usage_file_path));
+  ASSERT_TRUE(usage_cache()->DecrementDirty(usage_file_path));
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(size, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, DecIncAndGetSizeTest) {
+  base::FilePath usage_file_path = GetUsageFilePath();
+  uint32 dirty = 0;
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, 854238));
+  // DecrementDirty for dirty = 0 is invalid. It returns false.
+  ASSERT_FALSE(usage_cache()->DecrementDirty(usage_file_path));
+  ASSERT_TRUE(usage_cache()->IncrementDirty(usage_file_path));
+  // It tests DecrementDirty (which returns false) has no effect, i.e
+  // does not make dirty = -1 after DecrementDirty.
+  EXPECT_TRUE(usage_cache()->GetDirty(usage_file_path, &dirty));
+  EXPECT_EQ(1u, dirty);
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(854238, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, ManyIncsSameDecsAndGetSizeTest) {
+  static const int64 size = 82412;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  int64 usage = 0;
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, size));
+  for (int i = 0; i < 20; i++)
+    ASSERT_TRUE(usage_cache()->IncrementDirty(usage_file_path));
+  for (int i = 0; i < 20; i++)
+    ASSERT_TRUE(usage_cache()->DecrementDirty(usage_file_path));
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(size, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, ManyIncsLessDecsAndGetSizeTest) {
+  uint32 dirty = 0;
+  int64 usage = 0;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  ASSERT_TRUE(usage_cache()->UpdateUsage(usage_file_path, 19319));
+  for (int i = 0; i < 20; i++)
+    ASSERT_TRUE(usage_cache()->IncrementDirty(usage_file_path));
+  for (int i = 0; i < 19; i++)
+    ASSERT_TRUE(usage_cache()->DecrementDirty(usage_file_path));
+  EXPECT_TRUE(usage_cache()->GetDirty(usage_file_path, &dirty));
+  EXPECT_EQ(1u, dirty);
+  EXPECT_TRUE(usage_cache()->GetUsage(usage_file_path, &usage));
+  EXPECT_EQ(19319, usage);
+}
+
+TEST_F(FileSystemUsageCacheTest, GetSizeWithoutCacheFileTest) {
+  int64 usage = 0;
+  base::FilePath usage_file_path = GetUsageFilePath();
+  EXPECT_FALSE(usage_cache()->GetUsage(usage_file_path, &usage));
+}
+
+TEST_F(FileSystemUsageCacheTest, IncrementDirtyWithoutCacheFileTest) {
+  base::FilePath usage_file_path = GetUsageFilePath();
+  EXPECT_FALSE(usage_cache()->IncrementDirty(usage_file_path));
+}
+
+TEST_F(FileSystemUsageCacheTest, DecrementDirtyWithoutCacheFileTest) {
+  base::FilePath usage_file_path = GetUsageFilePath();
+  EXPECT_FALSE(usage_cache()->IncrementDirty(usage_file_path));
+}
+
+}  // namespace content