1 // Copyright (c) 2009, Google Inc.
2 // All rights reserved.
3 //
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7 //
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9 // notice, this list of conditions and the following disclaimer.
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11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
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17 //
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <sys/types.h>
33
34 #include "client/linux/minidump_writer/line_reader.h"
35 #include "breakpad_googletest_includes.h"
36 #include "common/linux/tests/auto_testfile.h"
37
38 using namespace google_breakpad;
39
40 namespace {
41
42 typedef testing::Test LineReaderTest;
43
44 class ScopedTestFile : public AutoTestFile {
45 public:
ScopedTestFile(const char * text)46 explicit ScopedTestFile(const char* text)
47 : AutoTestFile("line_reader", text) {
48 }
49
ScopedTestFile(const char * text,size_t text_len)50 ScopedTestFile(const char* text, size_t text_len)
51 : AutoTestFile("line_reader", text, text_len) {
52 }
53 };
54
55 }
56
TEST(LineReaderTest,EmptyFile)57 TEST(LineReaderTest, EmptyFile) {
58 ScopedTestFile file("");
59 ASSERT_TRUE(file.IsOk());
60 LineReader reader(file.GetFd());
61
62 const char *line;
63 unsigned len;
64 ASSERT_FALSE(reader.GetNextLine(&line, &len));
65 }
66
TEST(LineReaderTest,OneLineTerminated)67 TEST(LineReaderTest, OneLineTerminated) {
68 ScopedTestFile file("a\n");
69 ASSERT_TRUE(file.IsOk());
70 LineReader reader(file.GetFd());
71
72 const char *line;
73 unsigned int len;
74 ASSERT_TRUE(reader.GetNextLine(&line, &len));
75 ASSERT_EQ((unsigned int)1, len);
76 ASSERT_EQ('a', line[0]);
77 ASSERT_EQ('\0', line[1]);
78 reader.PopLine(len);
79
80 ASSERT_FALSE(reader.GetNextLine(&line, &len));
81 }
82
TEST(LineReaderTest,OneLine)83 TEST(LineReaderTest, OneLine) {
84 ScopedTestFile file("a");
85 ASSERT_TRUE(file.IsOk());
86 LineReader reader(file.GetFd());
87
88 const char *line;
89 unsigned len;
90 ASSERT_TRUE(reader.GetNextLine(&line, &len));
91 ASSERT_EQ((unsigned)1, len);
92 ASSERT_EQ('a', line[0]);
93 ASSERT_EQ('\0', line[1]);
94 reader.PopLine(len);
95
96 ASSERT_FALSE(reader.GetNextLine(&line, &len));
97 }
98
TEST(LineReaderTest,TwoLinesTerminated)99 TEST(LineReaderTest, TwoLinesTerminated) {
100 ScopedTestFile file("a\nb\n");
101 ASSERT_TRUE(file.IsOk());
102 LineReader reader(file.GetFd());
103
104 const char *line;
105 unsigned len;
106 ASSERT_TRUE(reader.GetNextLine(&line, &len));
107 ASSERT_EQ((unsigned)1, len);
108 ASSERT_EQ('a', line[0]);
109 ASSERT_EQ('\0', line[1]);
110 reader.PopLine(len);
111
112 ASSERT_TRUE(reader.GetNextLine(&line, &len));
113 ASSERT_EQ((unsigned)1, len);
114 ASSERT_EQ('b', line[0]);
115 ASSERT_EQ('\0', line[1]);
116 reader.PopLine(len);
117
118 ASSERT_FALSE(reader.GetNextLine(&line, &len));
119 }
120
TEST(LineReaderTest,TwoLines)121 TEST(LineReaderTest, TwoLines) {
122 ScopedTestFile file("a\nb");
123 ASSERT_TRUE(file.IsOk());
124 LineReader reader(file.GetFd());
125
126 const char *line;
127 unsigned len;
128 ASSERT_TRUE(reader.GetNextLine(&line, &len));
129 ASSERT_EQ((unsigned)1, len);
130 ASSERT_EQ('a', line[0]);
131 ASSERT_EQ('\0', line[1]);
132 reader.PopLine(len);
133
134 ASSERT_TRUE(reader.GetNextLine(&line, &len));
135 ASSERT_EQ((unsigned)1, len);
136 ASSERT_EQ('b', line[0]);
137 ASSERT_EQ('\0', line[1]);
138 reader.PopLine(len);
139
140 ASSERT_FALSE(reader.GetNextLine(&line, &len));
141 }
142
TEST(LineReaderTest,MaxLength)143 TEST(LineReaderTest, MaxLength) {
144 char l[LineReader::kMaxLineLen-1];
145 memset(l, 'a', sizeof(l));
146 ScopedTestFile file(l, sizeof(l));
147 ASSERT_TRUE(file.IsOk());
148 LineReader reader(file.GetFd());
149
150 const char *line;
151 unsigned len;
152 ASSERT_TRUE(reader.GetNextLine(&line, &len));
153 ASSERT_EQ(sizeof(l), len);
154 ASSERT_TRUE(memcmp(l, line, sizeof(l)) == 0);
155 ASSERT_EQ('\0', line[len]);
156 }
157
TEST(LineReaderTest,TooLong)158 TEST(LineReaderTest, TooLong) {
159 // Note: this writes kMaxLineLen 'a' chars in the test file.
160 char l[LineReader::kMaxLineLen];
161 memset(l, 'a', sizeof(l));
162 ScopedTestFile file(l, sizeof(l));
163 ASSERT_TRUE(file.IsOk());
164 LineReader reader(file.GetFd());
165
166 const char *line;
167 unsigned len;
168 ASSERT_FALSE(reader.GetNextLine(&line, &len));
169 }
170