1 // Copyright 2013 Google LLC
2 //
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4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
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8 // notice, this list of conditions and the following disclaimer.
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11 // in the documentation and/or other materials provided with the
12 // distribution.
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15 // this software without specific prior written permission.
16 //
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27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 #ifdef HAVE_CONFIG_H
30 #include <config.h> // Must come first
31 #endif
32
33 #include <stdlib.h>
34 #include <unistd.h>
35 #include <sys/types.h>
36 #include <stdio.h>
37 #include <errno.h>
38 #include <string.h>
39
40 #include "breakpad_googletest_includes.h"
41 #include "client/linux/minidump_writer/cpu_set.h"
42 #include "common/linux/scoped_tmpfile.h"
43
44 using namespace google_breakpad;
45
46 namespace {
47
48 typedef testing::Test CpuSetTest;
49
50 }
51
TEST(CpuSetTest,EmptyCount)52 TEST(CpuSetTest, EmptyCount) {
53 CpuSet set;
54 ASSERT_EQ(0, set.GetCount());
55 }
56
TEST(CpuSetTest,OneCpu)57 TEST(CpuSetTest, OneCpu) {
58 ScopedTmpFile file;
59 ASSERT_TRUE(file.InitString("10"));
60
61 CpuSet set;
62 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
63 ASSERT_EQ(1, set.GetCount());
64 }
65
TEST(CpuSetTest,OneCpuTerminated)66 TEST(CpuSetTest, OneCpuTerminated) {
67 ScopedTmpFile file;
68 ASSERT_TRUE(file.InitString("10\n"));
69
70 CpuSet set;
71 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
72 ASSERT_EQ(1, set.GetCount());
73 }
74
TEST(CpuSetTest,TwoCpusWithComma)75 TEST(CpuSetTest, TwoCpusWithComma) {
76 ScopedTmpFile file;
77 ASSERT_TRUE(file.InitString("1,10"));
78
79 CpuSet set;
80 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
81 ASSERT_EQ(2, set.GetCount());
82 }
83
TEST(CpuSetTest,TwoCpusWithRange)84 TEST(CpuSetTest, TwoCpusWithRange) {
85 ScopedTmpFile file;
86 ASSERT_TRUE(file.InitString("1-2"));
87
88 CpuSet set;
89 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
90 ASSERT_EQ(2, set.GetCount());
91 }
92
TEST(CpuSetTest,TenCpusWithRange)93 TEST(CpuSetTest, TenCpusWithRange) {
94 ScopedTmpFile file;
95 ASSERT_TRUE(file.InitString("9-18"));
96
97 CpuSet set;
98 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
99 ASSERT_EQ(10, set.GetCount());
100 }
101
TEST(CpuSetTest,MultiItems)102 TEST(CpuSetTest, MultiItems) {
103 ScopedTmpFile file;
104 ASSERT_TRUE(file.InitString("0, 2-4, 128"));
105
106 CpuSet set;
107 ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
108 ASSERT_EQ(5, set.GetCount());
109 }
110
TEST(CpuSetTest,IntersectWith)111 TEST(CpuSetTest, IntersectWith) {
112 ScopedTmpFile file1;
113 ASSERT_TRUE(file1.InitString("9-19"));
114
115 CpuSet set1;
116 ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
117 ASSERT_EQ(11, set1.GetCount());
118
119 ScopedTmpFile file2;
120 ASSERT_TRUE(file2.InitString("16-24"));
121
122 CpuSet set2;
123 ASSERT_TRUE(set2.ParseSysFile(file2.GetFd()));
124 ASSERT_EQ(9, set2.GetCount());
125
126 set1.IntersectWith(set2);
127 ASSERT_EQ(4, set1.GetCount());
128 ASSERT_EQ(9, set2.GetCount());
129 }
130
TEST(CpuSetTest,SelfIntersection)131 TEST(CpuSetTest, SelfIntersection) {
132 ScopedTmpFile file1;
133 ASSERT_TRUE(file1.InitString("9-19"));
134
135 CpuSet set1;
136 ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
137 ASSERT_EQ(11, set1.GetCount());
138
139 set1.IntersectWith(set1);
140 ASSERT_EQ(11, set1.GetCount());
141 }
142
TEST(CpuSetTest,EmptyIntersection)143 TEST(CpuSetTest, EmptyIntersection) {
144 ScopedTmpFile file1;
145 ASSERT_TRUE(file1.InitString("0-19"));
146
147 CpuSet set1;
148 ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
149 ASSERT_EQ(20, set1.GetCount());
150
151 ScopedTmpFile file2;
152 ASSERT_TRUE(file2.InitString("20-39"));
153
154 CpuSet set2;
155 ASSERT_TRUE(set2.ParseSysFile(file2.GetFd()));
156 ASSERT_EQ(20, set2.GetCount());
157
158 set1.IntersectWith(set2);
159 ASSERT_EQ(0, set1.GetCount());
160
161 ASSERT_EQ(20, set2.GetCount());
162 }
163
164