Lab_1 0.1.1
Matrix Library
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googletest-message-test.cc
1// Copyright 2005, 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//
31// Tests for the Message class.
32
33#include "gtest/gtest-message.h"
34#include "gtest/gtest.h"
35
36namespace {
37
38using ::testing::Message;
39
40// Tests the testing::Message class
41
42// Tests the default constructor.
43TEST(MessageTest, DefaultConstructor) {
44 const Message msg;
45 EXPECT_EQ("", msg.GetString());
46}
47
48// Tests the copy constructor.
49TEST(MessageTest, CopyConstructor) {
50 const Message msg1("Hello");
51 const Message msg2(msg1);
52 EXPECT_EQ("Hello", msg2.GetString());
53}
54
55// Tests constructing a Message from a C-string.
56TEST(MessageTest, ConstructsFromCString) {
57 Message msg("Hello");
58 EXPECT_EQ("Hello", msg.GetString());
59}
60
61// Tests streaming a float.
62TEST(MessageTest, StreamsFloat) {
63 const std::string s = (Message() << 1.23456F << " " << 2.34567F).GetString();
64 // Both numbers should be printed with enough precision.
65 EXPECT_PRED_FORMAT2(testing::IsSubstring, "1.234560", s.c_str());
66 EXPECT_PRED_FORMAT2(testing::IsSubstring, " 2.345669", s.c_str());
67}
68
69// Tests streaming a double.
70TEST(MessageTest, StreamsDouble) {
71 const std::string s =
72 (Message() << 1260570880.4555497 << " " << 1260572265.1954534)
73 .GetString();
74 // Both numbers should be printed with enough precision.
75 EXPECT_PRED_FORMAT2(testing::IsSubstring, "1260570880.45", s.c_str());
76 EXPECT_PRED_FORMAT2(testing::IsSubstring, " 1260572265.19", s.c_str());
77}
78
79// Tests streaming a non-char pointer.
80TEST(MessageTest, StreamsPointer) {
81 int n = 0;
82 int* p = &n;
83 EXPECT_NE("(null)", (Message() << p).GetString());
84}
85
86// Tests streaming a NULL non-char pointer.
87TEST(MessageTest, StreamsNullPointer) {
88 int* p = nullptr;
89 EXPECT_EQ("(null)", (Message() << p).GetString());
90}
91
92// Tests streaming a C string.
93TEST(MessageTest, StreamsCString) {
94 EXPECT_EQ("Foo", (Message() << "Foo").GetString());
95}
96
97// Tests streaming a NULL C string.
98TEST(MessageTest, StreamsNullCString) {
99 char* p = nullptr;
100 EXPECT_EQ("(null)", (Message() << p).GetString());
101}
102
103// Tests streaming std::string.
104TEST(MessageTest, StreamsString) {
105 const ::std::string str("Hello");
106 EXPECT_EQ("Hello", (Message() << str).GetString());
107}
108
109// Tests that we can output strings containing embedded NULs.
110TEST(MessageTest, StreamsStringWithEmbeddedNUL) {
111 const char char_array_with_nul[] = "Here's a NUL\0 and some more string";
112 const ::std::string string_with_nul(char_array_with_nul,
113 sizeof(char_array_with_nul) - 1);
114 EXPECT_EQ("Here's a NUL\\0 and some more string",
115 (Message() << string_with_nul).GetString());
116}
117
118// Tests streaming a NUL char.
119TEST(MessageTest, StreamsNULChar) {
120 EXPECT_EQ("\\0", (Message() << '\0').GetString());
121}
122
123// Tests streaming int.
124TEST(MessageTest, StreamsInt) {
125 EXPECT_EQ("123", (Message() << 123).GetString());
126}
127
128// Tests that basic IO manipulators (endl, ends, and flush) can be
129// streamed to Message.
130TEST(MessageTest, StreamsBasicIoManip) {
131 EXPECT_EQ(
132 "Line 1.\nA NUL char \\0 in line 2.",
133 (Message() << "Line 1." << std::endl
134 << "A NUL char " << std::ends << std::flush << " in line 2.")
135 .GetString());
136}
137
138// Tests Message::GetString()
139TEST(MessageTest, GetString) {
140 Message msg;
141 msg << 1 << " lamb";
142 EXPECT_EQ("1 lamb", msg.GetString());
143}
144
145// Tests streaming a Message object to an ostream.
146TEST(MessageTest, StreamsToOStream) {
147 Message msg("Hello");
148 ::std::stringstream ss;
149 ss << msg;
150 EXPECT_EQ("Hello", testing::internal::StringStreamToString(&ss));
151}
152
153// Tests that a Message object doesn't take up too much stack space.
154TEST(MessageTest, DoesNotTakeUpMuchStackSpace) {
155 EXPECT_LE(sizeof(Message), 16U);
156}
157
158} // namespace