proxygen
gtest-message_test.cc
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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 
42 // Tests the testing::Message class
43 
44 // Tests the default constructor.
45 TEST(MessageTest, DefaultConstructor) {
46  const Message msg;
47  EXPECT_EQ("", msg.GetString());
48 }
49 
50 // Tests the copy constructor.
51 TEST(MessageTest, CopyConstructor) {
52  const Message msg1("Hello");
53  const Message msg2(msg1);
54  EXPECT_EQ("Hello", msg2.GetString());
55 }
56 
57 // Tests constructing a Message from a C-string.
58 TEST(MessageTest, ConstructsFromCString) {
59  Message msg("Hello");
60  EXPECT_EQ("Hello", msg.GetString());
61 }
62 
63 // Tests streaming a float.
64 TEST(MessageTest, StreamsFloat) {
65  const std::string s = (Message() << 1.23456F << " " << 2.34567F).GetString();
66  // Both numbers should be printed with enough precision.
67  EXPECT_PRED_FORMAT2(testing::IsSubstring, "1.234560", s.c_str());
68  EXPECT_PRED_FORMAT2(testing::IsSubstring, " 2.345669", s.c_str());
69 }
70 
71 // Tests streaming a double.
72 TEST(MessageTest, StreamsDouble) {
73  const std::string s = (Message() << 1260570880.4555497 << " "
74  << 1260572265.1954534).GetString();
75  // Both numbers should be printed with enough precision.
76  EXPECT_PRED_FORMAT2(testing::IsSubstring, "1260570880.45", s.c_str());
77  EXPECT_PRED_FORMAT2(testing::IsSubstring, " 1260572265.19", s.c_str());
78 }
79 
80 // Tests streaming a non-char pointer.
81 TEST(MessageTest, StreamsPointer) {
82  int n = 0;
83  int* p = &n;
84  EXPECT_NE("(null)", (Message() << p).GetString());
85 }
86 
87 // Tests streaming a NULL non-char pointer.
88 TEST(MessageTest, StreamsNullPointer) {
89  int* p = NULL;
90  EXPECT_EQ("(null)", (Message() << p).GetString());
91 }
92 
93 // Tests streaming a C string.
94 TEST(MessageTest, StreamsCString) {
95  EXPECT_EQ("Foo", (Message() << "Foo").GetString());
96 }
97 
98 // Tests streaming a NULL C string.
99 TEST(MessageTest, StreamsNullCString) {
100  char* p = NULL;
101  EXPECT_EQ("(null)", (Message() << p).GetString());
102 }
103 
104 // Tests streaming std::string.
105 TEST(MessageTest, StreamsString) {
106  const ::std::string str("Hello");
107  EXPECT_EQ("Hello", (Message() << str).GetString());
108 }
109 
110 // Tests that we can output strings containing embedded NULs.
111 TEST(MessageTest, StreamsStringWithEmbeddedNUL) {
112  const char char_array_with_nul[] =
113  "Here's a NUL\0 and some more string";
114  const ::std::string string_with_nul(char_array_with_nul,
115  sizeof(char_array_with_nul) - 1);
116  EXPECT_EQ("Here's a NUL\\0 and some more string",
117  (Message() << string_with_nul).GetString());
118 }
119 
120 // Tests streaming a NUL char.
121 TEST(MessageTest, StreamsNULChar) {
122  EXPECT_EQ("\\0", (Message() << '\0').GetString());
123 }
124 
125 // Tests streaming int.
126 TEST(MessageTest, StreamsInt) {
127  EXPECT_EQ("123", (Message() << 123).GetString());
128 }
129 
130 // Tests that basic IO manipulators (endl, ends, and flush) can be
131 // streamed to Message.
132 TEST(MessageTest, StreamsBasicIoManip) {
133  EXPECT_EQ("Line 1.\nA NUL char \\0 in line 2.",
134  (Message() << "Line 1." << std::endl
135  << "A NUL char " << std::ends << std::flush
136  << " in line 2.").GetString());
137 }
138 
139 // Tests Message::GetString()
140 TEST(MessageTest, GetString) {
141  Message msg;
142  msg << 1 << " lamb";
143  EXPECT_EQ("1 lamb", msg.GetString());
144 }
145 
146 // Tests streaming a Message object to an ostream.
147 TEST(MessageTest, StreamsToOStream) {
148  Message msg("Hello");
149  ::std::stringstream ss;
150  ss << msg;
152 }
153 
154 // Tests that a Message object doesn't take up too much stack space.
155 TEST(MessageTest, DoesNotTakeUpMuchStackSpace) {
156  EXPECT_LE(sizeof(Message), 16U);
157 }
158 
159 } // namespace
#define EXPECT_LE(val1, val2)
Definition: gtest.h:1928
#define EXPECT_PRED_FORMAT2(pred_format, v1, v2)
#define TEST(test_case_name, test_name)
Definition: gtest.h:2187
#define EXPECT_EQ(val1, val2)
Definition: gtest.h:1922
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const char * string
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Definition: gtest.cc:1982