net/disk_cache/flash/log_structured_store_unittest.cc - Issue 11532011: Renamed classes for consistency.

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Issue 11532011: Renamed classes for consistency. (Closed) Base URL: http://git.chromium.org/chromium/src.git@master

Patch Set: test 2. Created 8 years ago

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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #include "net/disk_cache/flash/flash_cache_test_base.h"

6 #include "net/disk_cache/flash/format.h"

7 #include "net/disk_cache/flash/log_structured_store.h"

8 #include "net/disk_cache/flash/segment.h"

9 #include "testing/gtest/include/gtest/gtest.h"

10

11 namespace disk_cache {

12

13 TEST_F(FlashCacheTest, LogStructuredStoreCreateEntry) {

14 const int32 kSize = 100;

15 const std::string buf(kSize, 0);

16

17 int32 id;

18 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize, &id));

19 EXPECT_TRUE(log_structured_store_->WriteData(buf.data(), kSize/2));

20 EXPECT_TRUE(log_structured_store_->WriteData(buf.data(), kSize/2));

21 log_structured_store_->CloseEntry(id);

22 }

23

24 // Also tests reading from current segment.

25 TEST_F(FlashCacheTest, LogStructuredStoreOpenEntry) {

26 const int32 kSize = 100;

27 const std::vector<char> expected(kSize, 'b');

28

29 int32 id;

30 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize, &id));

31 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize));

32 log_structured_store_->CloseEntry(id);

33

34 EXPECT_TRUE(log_structured_store_->OpenEntry(id));

35 std::vector<char> actual(kSize, 0);

36 EXPECT_TRUE(log_structured_store_->ReadData(id, &actual[0], kSize, 0));

37 log_structured_store_->CloseEntry(id);

38

39 EXPECT_EQ(expected, actual);

40 }

41

42 // Also tests that writing advances segments.

43 TEST_F(FlashCacheTest, LogStructuredStoreReadFromClosedSegment) {

44 const int32 kSize = disk_cache::kFlashSegmentFreeSpace;

45 const std::vector<char> expected(kSize, 'a');

46

47 // First two entries go to segment 0.

48 int32 id1;

49 EXPECT_EQ(0, log_structured_store_->write_index_);

50 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize/2, &id1));

51 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize/2));

52 log_structured_store_->CloseEntry(id1);

53

54 int32 id2;

55 EXPECT_EQ(0, log_structured_store_->write_index_);

56 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize/2, &id2));

57 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize/2));

58 log_structured_store_->CloseEntry(id2);

59

60 // This entry goes to segment 1.

61 int32 id3;

62 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize, &id3));

63 EXPECT_EQ(1, log_structured_store_->write_index_);

64 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize));

65 log_structured_store_->CloseEntry(id3);

66

67 // We read from segment 0.

68 EXPECT_TRUE(log_structured_store_->OpenEntry(id1));

69 std::vector<char> actual(kSize, 0);

70 EXPECT_TRUE(log_structured_store_->ReadData(id1, &actual[0], kSize, id1));

71 log_structured_store_->CloseEntry(id1);

72

73 EXPECT_EQ(expected, actual);

74 }

75

76 TEST_F(FlashCacheTest, LogStructuredStoreReadFromCurrentAfterClose) {

77 const int32 kSize = disk_cache::kFlashSegmentFreeSpace;

78 const std::vector<char> expected(kSize, 'a');

79

80 int32 id1;

81 EXPECT_EQ(0, log_structured_store_->write_index_);

82 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize/2, &id1));

83 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize/2));

84 log_structured_store_->CloseEntry(id1);

85

86 // Create a reference to above entry.

87 EXPECT_TRUE(log_structured_store_->OpenEntry(id1));

88

89 // This entry fills the first segment.

90 int32 id2;

91 EXPECT_EQ(0, log_structured_store_->write_index_);

92 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize/2, &id2));

93 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize/2));

94 log_structured_store_->CloseEntry(id2);

95

96 // Creating this entry forces closing of the first segment.

97 int32 id3;

98 EXPECT_TRUE(log_structured_store_->CreateEntry(kSize, &id3));

99 EXPECT_EQ(1, log_structured_store_->write_index_);

100 EXPECT_TRUE(log_structured_store_->WriteData(&expected[0], kSize));

101 log_structured_store_->CloseEntry(id3);

102

103 // Now attempt to read from the closed segment.

104 std::vector<char> actual(kSize, 0);

105 EXPECT_TRUE(log_structured_store_->ReadData(id1, &actual[0], kSize, id1));

106 log_structured_store_->CloseEntry(id1);

107

108 EXPECT_EQ(expected, actual);

109 }

110

111 // TODO(agayev): Add a test that confirms that in-use segment is not selected as

112 // the next write segment.

113

114 } // namespace disk_cache

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