1 //===-- sanitizer_flags_test.cc -------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of ThreadSanitizer/AddressSanitizer runtime.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "sanitizer_common/sanitizer_common.h"
14 #include "sanitizer_common/sanitizer_flags.h"
15 #include "sanitizer_common/sanitizer_flag_parser.h"
16 #include "sanitizer_common/sanitizer_libc.h"
17 #include "sanitizer_common/sanitizer_allocator_internal.h"
18 #include "gtest/gtest.h"
19
20 #include <string.h>
21
22 namespace __sanitizer {
23
24 static const char kFlagName[] = "flag_name";
25 static const char kFlagDesc[] = "flag description";
26
27 template <typename T>
TestFlag(T start_value,const char * env,T final_value)28 static void TestFlag(T start_value, const char *env, T final_value) {
29 T flag = start_value;
30
31 FlagParser parser;
32 RegisterFlag(&parser, kFlagName, kFlagDesc, &flag);
33
34 parser.ParseString(env);
35
36 EXPECT_EQ(final_value, flag);
37 }
38
39 template <>
TestFlag(const char * start_value,const char * env,const char * final_value)40 void TestFlag(const char *start_value, const char *env,
41 const char *final_value) {
42 const char *flag = start_value;
43
44 FlagParser parser;
45 RegisterFlag(&parser, kFlagName, kFlagDesc, &flag);
46
47 parser.ParseString(env);
48
49 EXPECT_EQ(0, internal_strcmp(final_value, flag));
50 }
51
TEST(SanitizerCommon,BooleanFlags)52 TEST(SanitizerCommon, BooleanFlags) {
53 TestFlag(false, "flag_name=1", true);
54 TestFlag(false, "flag_name=yes", true);
55 TestFlag(false, "flag_name=true", true);
56 TestFlag(true, "flag_name=0", false);
57 TestFlag(true, "flag_name=no", false);
58 TestFlag(true, "flag_name=false", false);
59 }
60
TEST(SanitizerCommon,IntFlags)61 TEST(SanitizerCommon, IntFlags) {
62 TestFlag(-11, 0, -11);
63 TestFlag(-11, "flag_name=0", 0);
64 TestFlag(-11, "flag_name=42", 42);
65 TestFlag(-11, "flag_name=-42", -42);
66
67 // Unrecognized flags are ignored.
68 TestFlag(-11, "--flag_name=42", -11);
69 TestFlag(-11, "zzzzzzz=42", -11);
70
71 EXPECT_DEATH(TestFlag(-11, "flag_name", 0), "expected '='");
72 EXPECT_DEATH(TestFlag(-11, "flag_name=42U", 0),
73 "Invalid value for int option");
74 }
75
TEST(SanitizerCommon,StrFlags)76 TEST(SanitizerCommon, StrFlags) {
77 TestFlag("zzz", 0, "zzz");
78 TestFlag("zzz", "flag_name=", "");
79 TestFlag("zzz", "flag_name=abc", "abc");
80 TestFlag("", "flag_name=abc", "abc");
81 TestFlag("", "flag_name='abc zxc'", "abc zxc");
82 // TestStrFlag("", "flag_name=\"abc qwe\" asd", "abc qwe");
83 }
84
TestTwoFlags(const char * env,bool expected_flag1,const char * expected_flag2,const char * name1="flag1",const char * name2="flag2")85 static void TestTwoFlags(const char *env, bool expected_flag1,
86 const char *expected_flag2,
87 const char *name1 = "flag1",
88 const char *name2 = "flag2") {
89 bool flag1 = !expected_flag1;
90 const char *flag2 = "";
91
92 FlagParser parser;
93 RegisterFlag(&parser, name1, kFlagDesc, &flag1);
94 RegisterFlag(&parser, name2, kFlagDesc, &flag2);
95
96 parser.ParseString(env);
97
98 EXPECT_EQ(expected_flag1, flag1);
99 EXPECT_EQ(0, internal_strcmp(flag2, expected_flag2));
100 }
101
TEST(SanitizerCommon,MultipleFlags)102 TEST(SanitizerCommon, MultipleFlags) {
103 TestTwoFlags("flag1=1 flag2='zzz'", true, "zzz");
104 TestTwoFlags("flag2='qxx' flag1=0", false, "qxx");
105 TestTwoFlags("flag1=false:flag2='zzz'", false, "zzz");
106 TestTwoFlags("flag2=qxx:flag1=yes", true, "qxx");
107 TestTwoFlags("flag2=qxx\nflag1=yes", true, "qxx");
108 TestTwoFlags("flag2=qxx\r\nflag1=yes", true, "qxx");
109 TestTwoFlags("flag2=qxx\tflag1=yes", true, "qxx");
110 }
111
TEST(SanitizerCommon,CommonSuffixFlags)112 TEST(SanitizerCommon, CommonSuffixFlags) {
113 TestTwoFlags("flag=1 other_flag='zzz'", true, "zzz", "flag", "other_flag");
114 TestTwoFlags("other_flag='zzz' flag=1", true, "zzz", "flag", "other_flag");
115 TestTwoFlags("other_flag=' flag=0 ' flag=1", true, " flag=0 ", "flag",
116 "other_flag");
117 TestTwoFlags("flag=1 other_flag=' flag=0 '", true, " flag=0 ", "flag",
118 "other_flag");
119 }
120
TEST(SanitizerCommon,CommonFlags)121 TEST(SanitizerCommon, CommonFlags) {
122 CommonFlags cf;
123 FlagParser parser;
124 RegisterCommonFlags(&parser, &cf);
125
126 cf.SetDefaults();
127 EXPECT_TRUE(cf.symbolize);
128 EXPECT_STREQ(".", cf.coverage_dir);
129
130 cf.symbolize = false;
131 cf.coverage = true;
132 cf.coverage_direct = true;
133 cf.log_path = "path/one";
134
135 parser.ParseString("symbolize=1:coverage_direct=false log_path='path/two'");
136 EXPECT_TRUE(cf.symbolize);
137 EXPECT_TRUE(cf.coverage);
138 EXPECT_FALSE(cf.coverage_direct);
139 EXPECT_STREQ("path/two", cf.log_path);
140 }
141
142 } // namespace __sanitizer
143