net/spdy/fuzzing/hpack_fuzz_util_test.cc - Issue 992733002: Remove //net (except for Android test stuff) and sdch

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Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master

Patch Set: Created 5 years, 9 months ago

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1 // Copyright 2014 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/spdy/fuzzing/hpack_fuzz_util.h"

6

7 #include <map>

8

9 #include "base/base_paths.h"

10 #include "base/files/file.h"

11 #include "base/files/file_util.h"

12 #include "base/path_service.h"

13 #include "net/spdy/spdy_test_utils.h"

14 #include "testing/gmock/include/gmock/gmock.h"

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

16

17 namespace net {

18

19 namespace {

20

21 using base::StringPiece;

22 using std::map;

23 using std::string;

24 using test::a2b_hex;

25

26 TEST(HpackFuzzUtilTest, GeneratorContextInitialization) {

27 HpackFuzzUtil::GeneratorContext context;

28 HpackFuzzUtil::InitializeGeneratorContext(&context);

29

30 // Context was seeded with initial name & value fixtures.

31 EXPECT_LT(0u, context.names.size());

32 EXPECT_LT(0u, context.values.size());

33 }

34

35 TEST(HpackFuzzUtil, GeneratorContextExpansion) {

36 HpackFuzzUtil::GeneratorContext context;

37

38 map<string, string> headers = HpackFuzzUtil::NextGeneratedHeaderSet(&context);

39

40 // Headers were generated, and the generator context was expanded.

41 EXPECT_LT(0u, headers.size());

42 EXPECT_LT(0u, context.names.size());

43 EXPECT_LT(0u, context.values.size());

44 }

45

46 // TODO(jgraettinger): A better test would mock a random generator and

47 // evaluate SampleExponential along fixed points of the [0,1] domain.

48 TEST(HpackFuzzUtilTest, SampleExponentialRegression) {

49 // TODO(jgraettinger): Upstream uses a seeded random generator here to pin

50 // the behavior of SampleExponential. Chromium's random generation utilities

51 // are strongly secure, but provide no way to seed the generator.

52 for (size_t i = 0; i != 100; ++i) {

53 EXPECT_GE(30u, HpackFuzzUtil::SampleExponential(10, 30));

54 }

55 }

56

57 TEST(HpackFuzzUtilTest, ParsesSequenceOfHeaderBlocks) {

58 char fixture[] =

59 "\x00\x00\x00\x05""aaaaa"

60 "\x00\x00\x00\x04""bbbb"

61 "\x00\x00\x00\x03""ccc"

62 "\x00\x00\x00\x02""dd"

63 "\x00\x00\x00\x01""e"

64 "\x00\x00\x00\x00"""

65 "\x00\x00\x00\x03""fin";

66

67 HpackFuzzUtil::Input input;

68 input.input.assign(fixture, arraysize(fixture) - 1);

69

70 StringPiece block;

71

72 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

73 EXPECT_EQ("aaaaa", block);

74 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

75 EXPECT_EQ("bbbb", block);

76 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

77 EXPECT_EQ("ccc", block);

78 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

79 EXPECT_EQ("dd", block);

80 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

81 EXPECT_EQ("e", block);

82 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

83 EXPECT_EQ("", block);

84 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

85 EXPECT_EQ("fin", block);

86 EXPECT_FALSE(HpackFuzzUtil::NextHeaderBlock(&input, &block));

87 }

88

89 TEST(HpackFuzzUtilTest, SerializedHeaderBlockPrefixes) {

90 EXPECT_EQ(string("\x00\x00\x00\x00", 4), HpackFuzzUtil::HeaderBlockPrefix(0));

91 EXPECT_EQ(string("\x00\x00\x00\x05", 4), HpackFuzzUtil::HeaderBlockPrefix(5));

92 EXPECT_EQ(string("\x4f\xb3\x0a\x91", 4),

93 HpackFuzzUtil::HeaderBlockPrefix(1337133713));

94 }

95

96 TEST(HpackFuzzUtilTest, PassValidInputThroughAllStages) {

97 // Example lifted from HpackDecoderTest.SectionD4RequestHuffmanExamples.

98 string input = a2b_hex("828684418cf1e3c2e5f23a6ba0ab90f4"

99 "ff");

100

101 HpackFuzzUtil::FuzzerContext context;

102 HpackFuzzUtil::InitializeFuzzerContext(&context);

103

104 EXPECT_TRUE(

105 HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages(&context, input));

106

107 std::map<string, string> expect;

108 expect[":method"] = "GET";

109 expect[":scheme"] = "http";

110 expect[":path"] = "/";

111 expect[":authority"] = "www.example.com";

112 EXPECT_EQ(expect, context.third_stage->decoded_block());

113 }

114

115 TEST(HpackFuzzUtilTest, ValidFuzzExamplesRegressionTest) {

116 base::FilePath source_root;

117 ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &source_root));

118

119 // Load the example fixtures versioned with the source tree.

120 HpackFuzzUtil::Input input;

121 ASSERT_TRUE(base::ReadFileToString(

122 source_root.Append(FILE_PATH_LITERAL("net"))

123 .Append(FILE_PATH_LITERAL("data"))

124 .Append(FILE_PATH_LITERAL("spdy_tests"))

125 .Append(FILE_PATH_LITERAL("examples_07.hpack")),

126 &input.input));

127

128 HpackFuzzUtil::FuzzerContext context;

129 HpackFuzzUtil::InitializeFuzzerContext(&context);

130

131 StringPiece block;

132 while (HpackFuzzUtil::NextHeaderBlock(&input, &block)) {

133 // As these are valid examples, all fuzz stages should succeed.

134 EXPECT_TRUE(HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages(

135 &context, block));

136 }

137 }

138

139 TEST(HpackFuzzUtilTest, FlipBitsMutatesBuffer) {

140 char buffer[] = "testbuffer1234567890";

141 string unmodified(buffer, arraysize(buffer) - 1);

142

143 EXPECT_EQ(unmodified, buffer);

144 HpackFuzzUtil::FlipBits(reinterpret_cast<uint8*>(buffer),

145 arraysize(buffer) - 1,

146 1);

147 EXPECT_NE(unmodified, buffer);

148 }

149

150 } // namespace

151

152 } // namespace net

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