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31 // Google Mock - a framework for writing C++ mock classes.
33 // This file defines some utilities useful for implementing Google
34 // Mock. They are subject to change without notice, so please DO NOT
35 // USE THEM IN USER CODE.
37 #include "gmock/internal/gmock-internal-utils.h"
40 #include <ostream> // NOLINT
42 #include "gmock/gmock.h"
43 #include "gmock/internal/gmock-port.h"
44 #include "gtest/gtest.h"
49 // Joins a vector of strings as if they are fields of a tuple; returns
51 GTEST_API_ std::string JoinAsTuple(const Strings& fields) {
52 switch (fields.size()) {
58 std::string result = "(" + fields[0];
59 for (size_t i = 1; i < fields.size(); i++) {
68 // Converts an identifier name to a space-separated list of lower-case
69 // words. Each maximum substring of the form [A-Za-z][a-z]*|\d+ is
70 // treated as one word. For example, both "FooBar123" and
71 // "foo_bar_123" are converted to "foo bar 123".
72 GTEST_API_ std::string ConvertIdentifierNameToWords(const char* id_name) {
74 char prev_char = '\0';
75 for (const char* p = id_name; *p != '\0'; prev_char = *(p++)) {
76 // We don't care about the current locale as the input is
77 // guaranteed to be a valid C++ identifier name.
78 const bool starts_new_word = IsUpper(*p) ||
79 (!IsAlpha(prev_char) && IsLower(*p)) ||
80 (!IsDigit(prev_char) && IsDigit(*p));
83 if (starts_new_word && result != "")
85 result += ToLower(*p);
91 // This class reports Google Mock failures as Google Test failures. A
92 // user can define another class in a similar fashion if they intend to
93 // use Google Mock with a testing framework other than Google Test.
94 class GoogleTestFailureReporter : public FailureReporterInterface {
96 virtual void ReportFailure(FailureType type, const char* file, int line,
97 const std::string& message) {
98 AssertHelper(type == kFatal ?
99 TestPartResult::kFatalFailure :
100 TestPartResult::kNonFatalFailure,
103 message.c_str()) = Message();
104 if (type == kFatal) {
110 // Returns the global failure reporter. Will create a
111 // GoogleTestFailureReporter and return it the first time called.
112 GTEST_API_ FailureReporterInterface* GetFailureReporter() {
113 // Points to the global failure reporter used by Google Mock. gcc
114 // guarantees that the following use of failure_reporter is
115 // thread-safe. We may need to add additional synchronization to
116 // protect failure_reporter if we port Google Mock to other
118 static FailureReporterInterface* const failure_reporter =
119 new GoogleTestFailureReporter();
120 return failure_reporter;
123 // Protects global resources (stdout in particular) used by Log().
124 static GTEST_DEFINE_STATIC_MUTEX_(g_log_mutex);
126 // Returns true iff a log with the given severity is visible according
127 // to the --gmock_verbose flag.
128 GTEST_API_ bool LogIsVisible(LogSeverity severity) {
129 if (GMOCK_FLAG(verbose) == kInfoVerbosity) {
130 // Always show the log if --gmock_verbose=info.
132 } else if (GMOCK_FLAG(verbose) == kErrorVerbosity) {
133 // Always hide it if --gmock_verbose=error.
136 // If --gmock_verbose is neither "info" nor "error", we treat it
137 // as "warning" (its default value).
138 return severity == kWarning;
142 // Prints the given message to stdout iff 'severity' >= the level
143 // specified by the --gmock_verbose flag. If stack_frames_to_skip >=
144 // 0, also prints the stack trace excluding the top
145 // stack_frames_to_skip frames. In opt mode, any positive
146 // stack_frames_to_skip is treated as 0, since we don't know which
147 // function calls will be inlined by the compiler and need to be
149 GTEST_API_ void Log(LogSeverity severity, const std::string& message,
150 int stack_frames_to_skip) {
151 if (!LogIsVisible(severity))
154 // Ensures that logs from different threads don't interleave.
155 MutexLock l(&g_log_mutex);
157 // "using ::std::cout;" doesn't work with Symbian's STLport, where cout is a
160 if (severity == kWarning) {
161 // Prints a GMOCK WARNING marker to make the warnings easily searchable.
162 std::cout << "\nGMOCK WARNING:";
164 // Pre-pends a new-line to message if it doesn't start with one.
165 if (message.empty() || message[0] != '\n') {
168 std::cout << message;
169 if (stack_frames_to_skip >= 0) {
171 // In opt mode, we have to be conservative and skip no stack frame.
172 const int actual_to_skip = 0;
174 // In dbg mode, we can do what the caller tell us to do (plus one
175 // for skipping this function's stack frame).
176 const int actual_to_skip = stack_frames_to_skip + 1;
179 // Appends a new-line to message if it doesn't end with one.
180 if (!message.empty() && *message.rbegin() != '\n') {
183 std::cout << "Stack trace:\n"
184 << ::testing::internal::GetCurrentOsStackTraceExceptTop(
185 ::testing::UnitTest::GetInstance(), actual_to_skip);
187 std::cout << ::std::flush;
190 GTEST_API_ WithoutMatchers GetWithoutMatchers() { return WithoutMatchers(); }
192 GTEST_API_ void IllegalDoDefault(const char* file, int line) {
195 "You are using DoDefault() inside a composite action like "
196 "DoAll() or WithArgs(). This is not supported for technical "
197 "reasons. Please instead spell out the default action, or "
198 "assign the default action to an Action variable and use "
199 "the variable in various places.");
202 } // namespace internal
203 } // namespace testing