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29 //
30 // Author: wan@google.com (Zhanyong Wan)
31 //
32 // Tests for the Message class.
33
34 #include <gtest/gtest-message.h>
35
36 #include <gtest/gtest.h>
37
38 namespace {
39
40 using ::testing::Message;
41 using ::testing::internal::StrStream;
42
43 // A helper function that turns a Message into a C string.
ToCString(const Message & msg)44 const char* ToCString(const Message& msg) {
45 static testing::internal::String result;
46 result = msg.GetString();
47 return result.c_str();
48 }
49
50 // Tests the testing::Message class
51
52 // Tests the default constructor.
TEST(MessageTest,DefaultConstructor)53 TEST(MessageTest, DefaultConstructor) {
54 const Message msg;
55 EXPECT_STREQ("", ToCString(msg));
56 }
57
58 // Tests the copy constructor.
TEST(MessageTest,CopyConstructor)59 TEST(MessageTest, CopyConstructor) {
60 const Message msg1("Hello");
61 const Message msg2(msg1);
62 EXPECT_STREQ("Hello", ToCString(msg2));
63 }
64
65 // Tests constructing a Message from a C-string.
TEST(MessageTest,ConstructsFromCString)66 TEST(MessageTest, ConstructsFromCString) {
67 Message msg("Hello");
68 EXPECT_STREQ("Hello", ToCString(msg));
69 }
70
71 // Tests streaming a non-char pointer.
TEST(MessageTest,StreamsPointer)72 TEST(MessageTest, StreamsPointer) {
73 int n = 0;
74 int* p = &n;
75 EXPECT_STRNE("(null)", ToCString(Message() << p));
76 }
77
78 // Tests streaming a NULL non-char pointer.
TEST(MessageTest,StreamsNullPointer)79 TEST(MessageTest, StreamsNullPointer) {
80 int* p = NULL;
81 EXPECT_STREQ("(null)", ToCString(Message() << p));
82 }
83
84 // Tests streaming a C string.
TEST(MessageTest,StreamsCString)85 TEST(MessageTest, StreamsCString) {
86 EXPECT_STREQ("Foo", ToCString(Message() << "Foo"));
87 }
88
89 // Tests streaming a NULL C string.
TEST(MessageTest,StreamsNullCString)90 TEST(MessageTest, StreamsNullCString) {
91 char* p = NULL;
92 EXPECT_STREQ("(null)", ToCString(Message() << p));
93 }
94
95 #if GTEST_HAS_STD_STRING
96
97 // Tests streaming std::string.
98 //
99 // As std::string has problem in MSVC when exception is disabled, we only
100 // test this where std::string can be used.
TEST(MessageTest,StreamsString)101 TEST(MessageTest, StreamsString) {
102 const ::std::string str("Hello");
103 EXPECT_STREQ("Hello", ToCString(Message() << str));
104 }
105
106 // Tests that we can output strings containing embedded NULs.
TEST(MessageTest,StreamsStringWithEmbeddedNUL)107 TEST(MessageTest, StreamsStringWithEmbeddedNUL) {
108 const char char_array_with_nul[] =
109 "Here's a NUL\0 and some more string";
110 const ::std::string string_with_nul(char_array_with_nul,
111 sizeof(char_array_with_nul) - 1);
112 EXPECT_STREQ("Here's a NUL\\0 and some more string",
113 ToCString(Message() << string_with_nul));
114 }
115
116 #endif // GTEST_HAS_STD_STRING
117
118 // Tests streaming a NUL char.
TEST(MessageTest,StreamsNULChar)119 TEST(MessageTest, StreamsNULChar) {
120 EXPECT_STREQ("\\0", ToCString(Message() << '\0'));
121 }
122
123 // Tests streaming int.
TEST(MessageTest,StreamsInt)124 TEST(MessageTest, StreamsInt) {
125 EXPECT_STREQ("123", ToCString(Message() << 123));
126 }
127
128 // Tests that basic IO manipulators (endl, ends, and flush) can be
129 // streamed to Message.
TEST(MessageTest,StreamsBasicIoManip)130 TEST(MessageTest, StreamsBasicIoManip) {
131 EXPECT_STREQ("Line 1.\nA NUL char \\0 in line 2.",
132 ToCString(Message() << "Line 1." << std::endl
133 << "A NUL char " << std::ends << std::flush
134 << " in line 2."));
135 }
136
137 // Tests Message::GetString()
TEST(MessageTest,GetString)138 TEST(MessageTest, GetString) {
139 Message msg;
140 msg << 1 << " lamb";
141 EXPECT_STREQ("1 lamb", msg.GetString().c_str());
142 }
143
144 // Tests streaming a Message object to an ostream.
TEST(MessageTest,StreamsToOStream)145 TEST(MessageTest, StreamsToOStream) {
146 Message msg("Hello");
147 StrStream ss;
148 ss << msg;
149 EXPECT_STREQ("Hello", testing::internal::StrStreamToString(&ss).c_str());
150 }
151
152 // Tests that a Message object doesn't take up too much stack space.
TEST(MessageTest,DoesNotTakeUpMuchStackSpace)153 TEST(MessageTest, DoesNotTakeUpMuchStackSpace) {
154 EXPECT_LE(sizeof(Message), 16U);
155 }
156
157 } // namespace
158