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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 ? TPRT_FATAL_FAILURE : TPRT_NONFATAL_FAILURE, |
| 81 file, line, message.c_str()) = Message(); |
| 82 if (type == FATAL) { |
| 83 abort(); |
| 84 } |
| 85 } |
| 86 }; |
| 87 |
| 88 // Returns the global failure reporter. Will create a |
| 89 // GoogleTestFailureReporter and return it the first time called. |
| 90 FailureReporterInterface* GetFailureReporter() { |
| 91 // Points to the global failure reporter used by Google Mock. gcc |
| 92 // guarantees that the following use of failure_reporter is |
| 93 // thread-safe. We may need to add additional synchronization to |
| 94 // protect failure_reporter if we port Google Mock to other |
| 95 // compilers. |
| 96 static FailureReporterInterface* const failure_reporter = |
| 97 new GoogleTestFailureReporter(); |
| 98 return failure_reporter; |
| 99 } |
| 100 |
| 101 // Protects global resources (stdout in particular) used by Log(). |
| 102 static Mutex g_log_mutex(Mutex::NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX); |
| 103 |
| 104 // Prints the given message to stdout iff 'severity' >= the level |
| 105 // specified by the --gmock_verbose flag. If stack_frames_to_skip >= |
| 106 // 0, also prints the stack trace excluding the top |
| 107 // stack_frames_to_skip frames. In opt mode, any positive |
| 108 // stack_frames_to_skip is treated as 0, since we don't know which |
| 109 // function calls will be inlined by the compiler and need to be |
| 110 // conservative. |
| 111 void Log(LogSeverity severity, const string& message, |
| 112 int stack_frames_to_skip) { |
| 113 if (GMOCK_FLAG(verbose) == kErrorVerbosity) { |
| 114 // The user is not interested in logs. |
| 115 return; |
| 116 } else if (GMOCK_FLAG(verbose) != kInfoVerbosity) { |
| 117 // The user is interested in warnings but not informational logs. |
| 118 // Note that invalid values of GMOCK_FLAG(verbose) are treated as |
| 119 // "warning", which is the default value of the flag. |
| 120 if (severity == INFO) { |
| 121 return; |
| 122 } |
| 123 } |
| 124 |
| 125 // Ensures that logs from different threads don't interleave. |
| 126 MutexLock l(&g_log_mutex); |
| 127 using ::std::cout; |
| 128 if (severity == WARNING) { |
| 129 // Prints a GMOCK WARNING marker to make the warnings easily searchable. |
| 130 cout << "\nGMOCK WARNING:"; |
| 131 } |
| 132 // Pre-pends a new-line to message if it doesn't start with one. |
| 133 if (message.empty() || message[0] != '\n') { |
| 134 cout << "\n"; |
| 135 } |
| 136 cout << message; |
| 137 if (stack_frames_to_skip >= 0) { |
| 138 #ifdef NDEBUG |
| 139 // In opt mode, we have to be conservative and skip no stack frame. |
| 140 const int actual_to_skip = 0; |
| 141 #else |
| 142 // In dbg mode, we can do what the caller tell us to do (plus one |
| 143 // for skipping this function's stack frame). |
| 144 const int actual_to_skip = stack_frames_to_skip + 1; |
| 145 #endif // NDEBUG |
| 146 |
| 147 // Appends a new-line to message if it doesn't end with one. |
| 148 if (!message.empty() && *message.rbegin() != '\n') { |
| 149 cout << "\n"; |
| 150 } |
| 151 cout << "Stack trace:\n" |
| 152 << ::testing::internal::GetCurrentOsStackTraceExceptTop( |
| 153 ::testing::UnitTest::GetInstance(), actual_to_skip); |
| 154 } |
| 155 cout << ::std::flush; |
| 156 } |
| 157 |
| 158 } // namespace internal |
| 159 } // namespace testing |
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