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| 1 // Copyright 2007, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 // | |
| 30 // Author: wan@google.com (Zhanyong Wan) | |
| 31 | |
| 32 // Google Mock - a framework for writing C++ mock classes. | |
| 33 // | |
| 34 // This file defines some utilities useful for implementing Google | |
| 35 // Mock. They are subject to change without notice, so please DO NOT | |
| 36 // USE THEM IN USER CODE. | |
| 37 | |
| 38 #include <gmock/internal/gmock-internal-utils.h> | |
| 39 | |
| 40 #include <ctype.h> | |
| 41 #include <ostream> // NOLINT | |
| 42 #include <string> | |
| 43 #include <gmock/gmock.h> | |
| 44 #include <gmock/internal/gmock-port.h> | |
| 45 #include <gtest/gtest.h> | |
| 46 | |
| 47 namespace testing { | |
| 48 namespace internal { | |
| 49 | |
| 50 // Converts an identifier name to a space-separated list of lower-case | |
| 51 // words. Each maximum substring of the form [A-Za-z][a-z]*|\d+ is | |
| 52 // treated as one word. For example, both "FooBar123" and | |
| 53 // "foo_bar_123" are converted to "foo bar 123". | |
| 54 string ConvertIdentifierNameToWords(const char* id_name) { | |
| 55 string result; | |
| 56 char prev_char = '\0'; | |
| 57 for (const char* p = id_name; *p != '\0'; prev_char = *(p++)) { | |
| 58 // We don't care about the current locale as the input is | |
| 59 // guaranteed to be a valid C++ identifier name. | |
| 60 const bool starts_new_word = isupper(*p) || | |
| 61 (!isalpha(prev_char) && islower(*p)) || | |
| 62 (!isdigit(prev_char) && isdigit(*p)); | |
| 63 | |
| 64 if (isalnum(*p)) { | |
| 65 if (starts_new_word && result != "") | |
| 66 result += ' '; | |
| 67 result += tolower(*p); | |
| 68 } | |
| 69 } | |
| 70 return result; | |
| 71 } | |
| 72 | |
| 73 // This class reports Google Mock failures as Google Test failures. A | |
| 74 // user can define another class in a similar fashion if he intends to | |
| 75 // use Google Mock with a testing framework other than Google Test. | |
| 76 class GoogleTestFailureReporter : public FailureReporterInterface { | |
| 77 public: | |
| 78 virtual void ReportFailure(FailureType type, const char* file, int line, | |
| 79 const string& message) { | |
| 80 AssertHelper(type == FATAL ? | |
| 81 TestPartResult::kFatalFailure : | |
| 82 TestPartResult::kNonFatalFailure, | |
| 83 file, | |
| 84 line, | |
| 85 message.c_str()) = Message(); | |
| 86 if (type == FATAL) { | |
| 87 posix::Abort(); | |
| 88 } | |
| 89 } | |
| 90 }; | |
| 91 | |
| 92 // Returns the global failure reporter. Will create a | |
| 93 // GoogleTestFailureReporter and return it the first time called. | |
| 94 FailureReporterInterface* GetFailureReporter() { | |
| 95 // Points to the global failure reporter used by Google Mock. gcc | |
| 96 // guarantees that the following use of failure_reporter is | |
| 97 // thread-safe. We may need to add additional synchronization to | |
| 98 // protect failure_reporter if we port Google Mock to other | |
| 99 // compilers. | |
| 100 static FailureReporterInterface* const failure_reporter = | |
| 101 new GoogleTestFailureReporter(); | |
| 102 return failure_reporter; | |
| 103 } | |
| 104 | |
| 105 // Protects global resources (stdout in particular) used by Log(). | |
| 106 static Mutex g_log_mutex(Mutex::NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX); | |
| 107 | |
| 108 // Returns true iff a log with the given severity is visible according | |
| 109 // to the --gmock_verbose flag. | |
| 110 bool LogIsVisible(LogSeverity severity) { | |
| 111 if (GMOCK_FLAG(verbose) == kInfoVerbosity) { | |
| 112 // Always show the log if --gmock_verbose=info. | |
| 113 return true; | |
| 114 } else if (GMOCK_FLAG(verbose) == kErrorVerbosity) { | |
| 115 // Always hide it if --gmock_verbose=error. | |
| 116 return false; | |
| 117 } else { | |
| 118 // If --gmock_verbose is neither "info" nor "error", we treat it | |
| 119 // as "warning" (its default value). | |
| 120 return severity == WARNING; | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 // Prints the given message to stdout iff 'severity' >= the level | |
| 125 // specified by the --gmock_verbose flag. If stack_frames_to_skip >= | |
| 126 // 0, also prints the stack trace excluding the top | |
| 127 // stack_frames_to_skip frames. In opt mode, any positive | |
| 128 // stack_frames_to_skip is treated as 0, since we don't know which | |
| 129 // function calls will be inlined by the compiler and need to be | |
| 130 // conservative. | |
| 131 void Log(LogSeverity severity, const string& message, | |
| 132 int stack_frames_to_skip) { | |
| 133 if (!LogIsVisible(severity)) | |
| 134 return; | |
| 135 | |
| 136 // Ensures that logs from different threads don't interleave. | |
| 137 MutexLock l(&g_log_mutex); | |
| 138 | |
| 139 // "using ::std::cout;" doesn't work with Symbian's STLport, where cout is a | |
| 140 // macro. | |
| 141 | |
| 142 if (severity == WARNING) { | |
| 143 // Prints a GMOCK WARNING marker to make the warnings easily searchable. | |
| 144 std::cout << "\nGMOCK WARNING:"; | |
| 145 } | |
| 146 // Pre-pends a new-line to message if it doesn't start with one. | |
| 147 if (message.empty() || message[0] != '\n') { | |
| 148 std::cout << "\n"; | |
| 149 } | |
| 150 std::cout << message; | |
| 151 if (stack_frames_to_skip >= 0) { | |
| 152 #ifdef NDEBUG | |
| 153 // In opt mode, we have to be conservative and skip no stack frame. | |
| 154 const int actual_to_skip = 0; | |
| 155 #else | |
| 156 // In dbg mode, we can do what the caller tell us to do (plus one | |
| 157 // for skipping this function's stack frame). | |
| 158 const int actual_to_skip = stack_frames_to_skip + 1; | |
| 159 #endif // NDEBUG | |
| 160 | |
| 161 // Appends a new-line to message if it doesn't end with one. | |
| 162 if (!message.empty() && *message.rbegin() != '\n') { | |
| 163 std::cout << "\n"; | |
| 164 } | |
| 165 std::cout << "Stack trace:\n" | |
| 166 << ::testing::internal::GetCurrentOsStackTraceExceptTop( | |
| 167 ::testing::UnitTest::GetInstance(), actual_to_skip); | |
| 168 } | |
| 169 std::cout << ::std::flush; | |
| 170 } | |
| 171 | |
| 172 } // namespace internal | |
| 173 } // namespace testing | |
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