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Issue 115846: Retry to checkin a version of gmock, modified to use our boost_tuple in VS2005. (Closed)
Patch Set: Created 11 years, 7 months ago
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1 // Copyright 2008, 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 #include <gmock/gmock.h>
33 #include <gmock/internal/gmock-port.h>
34
35 namespace testing {
36
37 // TODO(wan@google.com): support using environment variables to
38 // control the flag values, like what Google Test does.
39
40 GMOCK_DEFINE_bool_(catch_leaked_mocks, true,
41 "true iff Google Mock should report leaked mock objects "
42 "as failures.");
43
44 GMOCK_DEFINE_string_(verbose, internal::kWarningVerbosity,
45 "Controls how verbose Google Mock's output is."
46 " Valid values:\n"
47 " info - prints all messages.\n"
48 " warning - prints warnings and errors.\n"
49 " error - prints errors only.");
50
51 namespace internal {
52
53 // Parses a string as a command line flag. The string should have the
54 // format "--gmock_flag=value". When def_optional is true, the
55 // "=value" part can be omitted.
56 //
57 // Returns the value of the flag, or NULL if the parsing failed.
58 static const char* ParseGoogleMockFlagValue(const char* str,
59 const char* flag,
60 bool def_optional) {
61 // str and flag must not be NULL.
62 if (str == NULL || flag == NULL) return NULL;
63
64 // The flag must start with "--gmock_".
65 const String flag_str = String::Format("--gmock_%s", flag);
66 const size_t flag_len = flag_str.GetLength();
67 if (strncmp(str, flag_str.c_str(), flag_len) != 0) return NULL;
68
69 // Skips the flag name.
70 const char* flag_end = str + flag_len;
71
72 // When def_optional is true, it's OK to not have a "=value" part.
73 if (def_optional && (flag_end[0] == '\0')) {
74 return flag_end;
75 }
76
77 // If def_optional is true and there are more characters after the
78 // flag name, or if def_optional is false, there must be a '=' after
79 // the flag name.
80 if (flag_end[0] != '=') return NULL;
81
82 // Returns the string after "=".
83 return flag_end + 1;
84 }
85
86 // Parses a string for a Google Mock bool flag, in the form of
87 // "--gmock_flag=value".
88 //
89 // On success, stores the value of the flag in *value, and returns
90 // true. On failure, returns false without changing *value.
91 static bool ParseGoogleMockBoolFlag(const char* str, const char* flag,
92 bool* value) {
93 // Gets the value of the flag as a string.
94 const char* const value_str = ParseGoogleMockFlagValue(str, flag, true);
95
96 // Aborts if the parsing failed.
97 if (value_str == NULL) return false;
98
99 // Converts the string value to a bool.
100 *value = !(*value_str == '0' || *value_str == 'f' || *value_str == 'F');
101 return true;
102 }
103
104 // Parses a string for a Google Mock string flag, in the form of
105 // "--gmock_flag=value".
106 //
107 // On success, stores the value of the flag in *value, and returns
108 // true. On failure, returns false without changing *value.
109 static bool ParseGoogleMockStringFlag(const char* str, const char* flag,
110 String* value) {
111 // Gets the value of the flag as a string.
112 const char* const value_str = ParseGoogleMockFlagValue(str, flag, false);
113
114 // Aborts if the parsing failed.
115 if (value_str == NULL) return false;
116
117 // Sets *value to the value of the flag.
118 *value = value_str;
119 return true;
120 }
121
122 // The internal implementation of InitGoogleMock().
123 //
124 // The type parameter CharType can be instantiated to either char or
125 // wchar_t.
126 template <typename CharType>
127 void InitGoogleMockImpl(int* argc, CharType** argv) {
128 // Makes sure Google Test is initialized. InitGoogleTest() is
129 // idempotent, so it's fine if the user has already called it.
130 InitGoogleTest(argc, argv);
131 if (*argc <= 0) return;
132
133 for (int i = 1; i != *argc; i++) {
134 const String arg_string = StreamableToString(argv[i]);
135 const char* const arg = arg_string.c_str();
136
137 // Do we see a Google Mock flag?
138 if (ParseGoogleMockBoolFlag(arg, "catch_leaked_mocks",
139 &GMOCK_FLAG(catch_leaked_mocks)) ||
140 ParseGoogleMockStringFlag(arg, "verbose", &GMOCK_FLAG(verbose))) {
141 // Yes. Shift the remainder of the argv list left by one. Note
142 // that argv has (*argc + 1) elements, the last one always being
143 // NULL. The following loop moves the trailing NULL element as
144 // well.
145 for (int j = i; j != *argc; j++) {
146 argv[j] = argv[j + 1];
147 }
148
149 // Decrements the argument count.
150 (*argc)--;
151
152 // We also need to decrement the iterator as we just removed
153 // an element.
154 i--;
155 }
156 }
157 }
158
159 } // namespace internal
160
161 // Initializes Google Mock. This must be called before running the
162 // tests. In particular, it parses a command line for the flags that
163 // Google Mock recognizes. Whenever a Google Mock flag is seen, it is
164 // removed from argv, and *argc is decremented.
165 //
166 // No value is returned. Instead, the Google Mock flag variables are
167 // updated.
168 //
169 // Since Google Test is needed for Google Mock to work, this function
170 // also initializes Google Test and parses its flags, if that hasn't
171 // been done.
172 void InitGoogleMock(int* argc, char** argv) {
173 internal::InitGoogleMockImpl(argc, argv);
174 }
175
176 // This overloaded version can be used in Windows programs compiled in
177 // UNICODE mode.
178 void InitGoogleMock(int* argc, wchar_t** argv) {
179 internal::InitGoogleMockImpl(argc, argv);
180 }
181
182 } // namespace testing
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