1 : // Copyright 2013 Google Inc. All Rights Reserved.
2 : //
3 : // Licensed under the Apache License, Version 2.0 (the "License");
4 : // you may not use this file except in compliance with the License.
5 : // You may obtain a copy of the License at
6 : //
7 : // http://www.apache.org/licenses/LICENSE-2.0
8 : //
9 : // Unless required by applicable law or agreed to in writing, software
10 : // distributed under the License is distributed on an "AS IS" BASIS,
11 : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 : // See the License for the specific language governing permissions and
13 : // limitations under the License.
14 :
15 : #include "syzygy/instrument/instrumenters/coverage_instrumenter.h"
16 :
17 : #include "base/command_line.h"
18 : #include "gtest/gtest.h"
19 : #include "syzygy/core/unittest_util.h"
20 : #include "syzygy/pe/unittest_util.h"
21 :
22 : namespace instrument {
23 : namespace instrumenters {
24 :
25 : namespace {
26 :
27 : class TestCoverageInstrumenter : public CoverageInstrumenter {
28 : public:
29 : using CoverageInstrumenter::agent_dll_;
30 : using CoverageInstrumenter::input_image_path_;
31 : using CoverageInstrumenter::input_pdb_path_;
32 : using CoverageInstrumenter::output_image_path_;
33 : using CoverageInstrumenter::output_pdb_path_;
34 : using CoverageInstrumenter::allow_overwrite_;
35 : using CoverageInstrumenter::old_decomposer_;
36 : using CoverageInstrumenter::no_augment_pdb_;
37 : using CoverageInstrumenter::no_strip_strings_;
38 : using CoverageInstrumenter::debug_friendly_;
39 : using CoverageInstrumenter::kAgentDllCoverage;
40 : using CoverageInstrumenter::InstrumentImpl;
41 : using InstrumenterWithAgent::CreateRelinker;
42 :
43 E : TestCoverageInstrumenter() {
44 : // Call the GetPERelinker function to initialize it.
45 E : pe::PERelinker* relinker = GetPERelinker();
46 E : EXPECT_TRUE(relinker != NULL);
47 E : }
48 : };
49 :
50 : class CoverageInstrumenterTest : public testing::PELibUnitTest {
51 : public:
52 : typedef testing::PELibUnitTest Super;
53 :
54 E : CoverageInstrumenterTest()
55 : : cmd_line_(base::FilePath(L"instrument.exe")) {
56 E : }
57 :
58 E : virtual void SetUp() OVERRIDE {
59 E : testing::Test::SetUp();
60 :
61 : // Several of the tests generate progress and (deliberate) error messages
62 : // that would otherwise clutter the unittest output.
63 E : logging::SetMinLogLevel(logging::LOG_FATAL);
64 :
65 : // Setup the IO streams.
66 E : CreateTemporaryDir(&temp_dir_);
67 E : stdin_path_ = temp_dir_.Append(L"NUL");
68 E : stdout_path_ = temp_dir_.Append(L"stdout.txt");
69 E : stderr_path_ = temp_dir_.Append(L"stderr.txt");
70 E : InitStreams(stdin_path_, stdout_path_, stderr_path_);
71 :
72 : // Initialize the (potential) input and output path values.
73 E : abs_input_image_path_ = testing::GetExeRelativePath(testing::kTestDllName);
74 E : input_image_path_ = testing::GetRelativePath(abs_input_image_path_);
75 E : abs_input_pdb_path_ = testing::GetExeRelativePath(testing::kTestDllPdbName);
76 E : input_pdb_path_ = testing::GetRelativePath(abs_input_pdb_path_);
77 E : output_image_path_ = temp_dir_.Append(input_image_path_.BaseName());
78 E : output_pdb_path_ = temp_dir_.Append(input_pdb_path_.BaseName());
79 E : }
80 :
81 E : void SetUpValidCommandLine() {
82 E : cmd_line_.AppendSwitchPath("input-image", input_image_path_);
83 E : cmd_line_.AppendSwitchPath("output-image", output_image_path_);
84 E : }
85 :
86 : protected:
87 : base::FilePath temp_dir_;
88 :
89 : // @name The redirected streams paths.
90 : // @{
91 : base::FilePath stdin_path_;
92 : base::FilePath stdout_path_;
93 : base::FilePath stderr_path_;
94 : // @}
95 :
96 : // @name Command-line and parameters.
97 : // @{
98 : CommandLine cmd_line_;
99 : base::FilePath input_image_path_;
100 : base::FilePath input_pdb_path_;
101 : base::FilePath output_image_path_;
102 : base::FilePath output_pdb_path_;
103 : // @}
104 :
105 : // @name Expected final values of input parameters.
106 : // @{
107 : base::FilePath abs_input_image_path_;
108 : base::FilePath abs_input_pdb_path_;
109 : // @}
110 :
111 : // The fake instrumenter we delegate to.
112 : TestCoverageInstrumenter instrumenter_;
113 : };
114 :
115 : } // namespace
116 :
117 E : TEST_F(CoverageInstrumenterTest, ParseMinimalCoverage) {
118 E : SetUpValidCommandLine();
119 :
120 E : EXPECT_TRUE(instrumenter_.ParseCommandLine(&cmd_line_));
121 :
122 E : EXPECT_EQ(abs_input_image_path_, instrumenter_.input_image_path_);
123 E : EXPECT_EQ(output_image_path_, instrumenter_.output_image_path_);
124 : EXPECT_EQ(std::string(TestCoverageInstrumenter::kAgentDllCoverage),
125 E : instrumenter_.agent_dll_);
126 E : EXPECT_FALSE(instrumenter_.allow_overwrite_);
127 E : EXPECT_FALSE(instrumenter_.old_decomposer_);
128 E : EXPECT_FALSE(instrumenter_.no_augment_pdb_);
129 E : EXPECT_FALSE(instrumenter_.no_strip_strings_);
130 E : EXPECT_FALSE(instrumenter_.debug_friendly_);
131 E : }
132 :
133 E : TEST_F(CoverageInstrumenterTest, ParseFullCoverage) {
134 E : SetUpValidCommandLine();
135 E : cmd_line_.AppendSwitchASCII("agent", "foo.dll");
136 E : cmd_line_.AppendSwitch("debug-friendly");
137 E : cmd_line_.AppendSwitchPath("input-pdb", input_pdb_path_);
138 E : cmd_line_.AppendSwitch("old-decomposer");
139 E : cmd_line_.AppendSwitch("no-augment-pdb");
140 E : cmd_line_.AppendSwitch("no-strip-strings");
141 E : cmd_line_.AppendSwitchPath("output-pdb", output_pdb_path_);
142 E : cmd_line_.AppendSwitch("overwrite");
143 :
144 E : EXPECT_TRUE(instrumenter_.ParseCommandLine(&cmd_line_));
145 :
146 E : EXPECT_EQ(abs_input_image_path_, instrumenter_.input_image_path_);
147 E : EXPECT_EQ(output_image_path_, instrumenter_.output_image_path_);
148 E : EXPECT_EQ(abs_input_pdb_path_, instrumenter_.input_pdb_path_);
149 E : EXPECT_EQ(output_pdb_path_, instrumenter_.output_pdb_path_);
150 E : EXPECT_EQ(std::string("foo.dll"), instrumenter_.agent_dll_);
151 E : EXPECT_TRUE(instrumenter_.allow_overwrite_);
152 E : EXPECT_TRUE(instrumenter_.old_decomposer_);
153 E : EXPECT_TRUE(instrumenter_.no_augment_pdb_);
154 E : EXPECT_TRUE(instrumenter_.no_strip_strings_);
155 E : EXPECT_TRUE(instrumenter_.debug_friendly_);
156 E : }
157 :
158 E : TEST_F(CoverageInstrumenterTest, InstrumentImpl) {
159 E : SetUpValidCommandLine();
160 :
161 E : EXPECT_TRUE(instrumenter_.ParseCommandLine(&cmd_line_));
162 E : EXPECT_TRUE(instrumenter_.CreateRelinker());
163 E : EXPECT_TRUE(instrumenter_.InstrumentImpl());
164 E : }
165 :
166 : } // namespace instrumenters
167 : } // namespace instrument
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