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Side by Side Diff: sandbox/linux/tests/unit_tests.h

Issue 66723007: Make sandbox/linux/seccomp-bpf/ follow the style guide. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: (empty) rebase Created 7 years, 1 month ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef SANDBOX_LINUX_TESTS_UNIT_TESTS_H__ 5 #ifndef SANDBOX_LINUX_TESTS_UNIT_TESTS_H__
6 #define SANDBOX_LINUX_TESTS_UNIT_TESTS_H__ 6 #define SANDBOX_LINUX_TESTS_UNIT_TESTS_H__
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "build/build_config.h" 9 #include "build/build_config.h"
10 #include "testing/gtest/include/gtest/gtest.h" 10 #include "testing/gtest/include/gtest/gtest.h"
(...skipping 15 matching lines...) Expand all
26 #endif // defined(THREAD_SANITIZER) 26 #endif // defined(THREAD_SANITIZER)
27 27
28 // While it is perfectly OK for a complex test to provide its own DeathCheck 28 // While it is perfectly OK for a complex test to provide its own DeathCheck
29 // function. Most death tests have very simple requirements. These tests should 29 // function. Most death tests have very simple requirements. These tests should
30 // use one of the predefined DEATH_XXX macros as an argument to 30 // use one of the predefined DEATH_XXX macros as an argument to
31 // SANDBOX_DEATH_TEST(). You can check for a (sub-)string in the output of the 31 // SANDBOX_DEATH_TEST(). You can check for a (sub-)string in the output of the
32 // test, for a particular exit code, or for a particular death signal. 32 // test, for a particular exit code, or for a particular death signal.
33 // NOTE: If you do decide to write your own DeathCheck, make sure to use 33 // NOTE: If you do decide to write your own DeathCheck, make sure to use
34 // gtests's ASSERT_XXX() macros instead of SANDBOX_ASSERT(). See 34 // gtests's ASSERT_XXX() macros instead of SANDBOX_ASSERT(). See
35 // unit_tests.cc for examples. 35 // unit_tests.cc for examples.
36 #define DEATH_SUCCESS() sandbox::UnitTests::DeathSuccess, NULL 36 #define DEATH_SUCCESS() sandbox::UnitTests::DeathSuccess, NULL
37 #define DEATH_MESSAGE(msg) sandbox::UnitTests::DeathMessage, \ 37 #define DEATH_MESSAGE(msg) \
38 static_cast<const void *>( \ 38 sandbox::UnitTests::DeathMessage, \
39 static_cast<const char *>(msg)) 39 static_cast<const void*>(static_cast<const char*>(msg))
40 #define DEATH_EXIT_CODE(rc) sandbox::UnitTests::DeathExitCode, \ 40 #define DEATH_EXIT_CODE(rc) \
41 reinterpret_cast<void *>(static_cast<intptr_t>(rc)) 41 sandbox::UnitTests::DeathExitCode, \
42 #define DEATH_BY_SIGNAL(s) sandbox::UnitTests::DeathExitCode, \ 42 reinterpret_cast<void*>(static_cast<intptr_t>(rc))
43 reinterpret_cast<void *>(static_cast<intptr_t>(s)) 43 #define DEATH_BY_SIGNAL(s) \
44 sandbox::UnitTests::DeathExitCode, \
45 reinterpret_cast<void*>(static_cast<intptr_t>(s))
44 46
45 // A SANDBOX_DEATH_TEST is just like a SANDBOX_TEST (see below), but it assumes 47 // A SANDBOX_DEATH_TEST is just like a SANDBOX_TEST (see below), but it assumes
46 // that the test actually dies. The death test only passes if the death occurs 48 // that the test actually dies. The death test only passes if the death occurs
47 // in the expected fashion, as specified by "death" and "death_aux". These two 49 // in the expected fashion, as specified by "death" and "death_aux". These two
48 // parameters are typically set to one of the DEATH_XXX() macros. 50 // parameters are typically set to one of the DEATH_XXX() macros.
49 #define SANDBOX_DEATH_TEST(test_case_name, test_name, death) \ 51 #define SANDBOX_DEATH_TEST(test_case_name, test_name, death) \
50 void TEST_##test_name(void *); \ 52 void TEST_##test_name(void*); \
51 TEST(test_case_name, test_name) { \ 53 TEST(test_case_name, test_name) { \
52 sandbox::UnitTests::RunTestInProcess(TEST_##test_name, NULL, death); \ 54 sandbox::UnitTests::RunTestInProcess(TEST_##test_name, NULL, death); \
53 } \ 55 } \
54 void TEST_##test_name(void *) 56 void TEST_##test_name(void*)
55 57
56 // Define a new test case that runs inside of a GTest death test. This is 58 // Define a new test case that runs inside of a GTest death test. This is
57 // necessary, as most of our tests by definition make global and irreversible 59 // necessary, as most of our tests by definition make global and irreversible
58 // changes to the system (i.e. they install a sandbox). GTest provides death 60 // changes to the system (i.e. they install a sandbox). GTest provides death
59 // tests as a tool to isolate global changes from the rest of the tests. 61 // tests as a tool to isolate global changes from the rest of the tests.
60 #define SANDBOX_TEST(test_case_name, test_name) \ 62 #define SANDBOX_TEST(test_case_name, test_name) \
61 SANDBOX_DEATH_TEST(test_case_name, test_name, DEATH_SUCCESS()) 63 SANDBOX_DEATH_TEST(test_case_name, test_name, DEATH_SUCCESS())
62 64
63 // Simple assertion macro that is compatible with running inside of a death 65 // Simple assertion macro that is compatible with running inside of a death
64 // test. We unfortunately cannot use any of the GTest macros. 66 // test. We unfortunately cannot use any of the GTest macros.
65 #define SANDBOX_STR(x) #x 67 #define SANDBOX_STR(x) #x
66 #define SANDBOX_ASSERT(expr) \ 68 #define SANDBOX_ASSERT(expr) \
67 ((expr) \ 69 ((expr) ? static_cast<void>(0) : sandbox::UnitTests::AssertionFailure( \
68 ? static_cast<void>(0) \ 70 SANDBOX_STR(expr), __FILE__, __LINE__))
69 : sandbox::UnitTests::AssertionFailure(SANDBOX_STR(expr), \
70 __FILE__, __LINE__))
71 71
72 class UnitTests { 72 class UnitTests {
73 public: 73 public:
74 typedef void (*Test)(void *); 74 typedef void (*Test)(void*);
75 typedef void (*DeathCheck)(int status, const std::string& msg, 75 typedef void (*DeathCheck)(int status,
76 const void *aux); 76 const std::string& msg,
77 const void* aux);
77 78
78 // Runs a test inside a short-lived process. Do not call this function 79 // Runs a test inside a short-lived process. Do not call this function
79 // directly. It is automatically invoked by SANDBOX_TEST(). Most sandboxing 80 // directly. It is automatically invoked by SANDBOX_TEST(). Most sandboxing
80 // functions make global irreversible changes to the execution environment 81 // functions make global irreversible changes to the execution environment
81 // and must therefore execute in their own isolated process. 82 // and must therefore execute in their own isolated process.
82 static void RunTestInProcess(Test test, void *arg, DeathCheck death, 83 static void RunTestInProcess(Test test,
83 const void *death_aux); 84 void* arg,
85 DeathCheck death,
86 const void* death_aux);
84 87
85 // Report a useful error message and terminate the current SANDBOX_TEST(). 88 // Report a useful error message and terminate the current SANDBOX_TEST().
86 // Calling this function from outside a SANDBOX_TEST() is unlikely to do 89 // Calling this function from outside a SANDBOX_TEST() is unlikely to do
87 // anything useful. 90 // anything useful.
88 static void AssertionFailure(const char *expr, const char *file, int line); 91 static void AssertionFailure(const char* expr, const char* file, int line);
89 92
90 // Sometimes we determine at run-time that a test should be disabled. 93 // Sometimes we determine at run-time that a test should be disabled.
91 // Call this method if we want to return from a test and completely 94 // Call this method if we want to return from a test and completely
92 // ignore its results. 95 // ignore its results.
93 // You should not call this method, if the test already ran any test-relevant 96 // You should not call this method, if the test already ran any test-relevant
94 // code. Most notably, you should not call it, you already wrote any messages 97 // code. Most notably, you should not call it, you already wrote any messages
95 // to stderr. 98 // to stderr.
96 static void IgnoreThisTest(); 99 static void IgnoreThisTest();
97 100
98 // A DeathCheck method that verifies that the test completed succcessfully. 101 // A DeathCheck method that verifies that the test completed succcessfully.
99 // This is the default test mode for SANDBOX_TEST(). The "aux" parameter 102 // This is the default test mode for SANDBOX_TEST(). The "aux" parameter
100 // of this DeathCheck is unused (and thus unnamed) 103 // of this DeathCheck is unused (and thus unnamed)
101 static void DeathSuccess(int status, const std::string& msg, const void *); 104 static void DeathSuccess(int status, const std::string& msg, const void*);
102 105
103 // A DeathCheck method that verifies that the test completed with error 106 // A DeathCheck method that verifies that the test completed with error
104 // code "1" and printed a message containing a particular substring. The 107 // code "1" and printed a message containing a particular substring. The
105 // "aux" pointer should point to a C-string containing the expected error 108 // "aux" pointer should point to a C-string containing the expected error
106 // message. This method is useful for checking assertion failures such as 109 // message. This method is useful for checking assertion failures such as
107 // in SANDBOX_ASSERT() and/or SANDBOX_DIE(). 110 // in SANDBOX_ASSERT() and/or SANDBOX_DIE().
108 static void DeathMessage(int status, const std::string& msg, 111 static void DeathMessage(int status, const std::string& msg, const void* aux);
109 const void *aux);
110 112
111 // A DeathCheck method that verifies that the test completed with a 113 // A DeathCheck method that verifies that the test completed with a
112 // particular exit code. If the test output any messages to stderr, they are 114 // particular exit code. If the test output any messages to stderr, they are
113 // silently ignored. The expected exit code should be passed in by 115 // silently ignored. The expected exit code should be passed in by
114 // casting the its "int" value to a "void *", which is then used for "aux". 116 // casting the its "int" value to a "void *", which is then used for "aux".
115 static void DeathExitCode(int status, const std::string& msg, 117 static void DeathExitCode(int status,
116 const void *aux); 118 const std::string& msg,
119 const void* aux);
117 120
118 // A DeathCheck method that verifies that the test was terminated by a 121 // A DeathCheck method that verifies that the test was terminated by a
119 // particular signal. If the test output any messages to stderr, they are 122 // particular signal. If the test output any messages to stderr, they are
120 // silently ignore. The expected signal number should be passed in by 123 // silently ignore. The expected signal number should be passed in by
121 // casting the its "int" value to a "void *", which is then used for "aux". 124 // casting the its "int" value to a "void *", which is then used for "aux".
122 static void DeathBySignal(int status, const std::string& msg, 125 static void DeathBySignal(int status,
123 const void *aux); 126 const std::string& msg,
127 const void* aux);
124 128
125 private: 129 private:
126 DISALLOW_IMPLICIT_CONSTRUCTORS(UnitTests); 130 DISALLOW_IMPLICIT_CONSTRUCTORS(UnitTests);
127 }; 131 };
128 132
129 } // namespace 133 } // namespace
130 134
131 #endif // SANDBOX_LINUX_TESTS_UNIT_TESTS_H__ 135 #endif // SANDBOX_LINUX_TESTS_UNIT_TESTS_H__
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