testing/gtest/gmock/src/gmock-internal-utils.cc

Wed, 31 Dec 2014 07:16:47 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:16:47 +0100
branch
TOR_BUG_9701
changeset 3
141e0f1194b1
permissions
-rw-r--r--

Revert simplistic fix pending revisit of Mozilla integration attempt.

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

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