summaryrefslogtreecommitdiff
path: root/tests/libgit2/core/errors.c
blob: 386ecdc5f4d32e57693739fa224c47a5b9fd7251 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
#include "clar_libgit2.h"

void test_core_errors__public_api(void)
{
	char *str_in_error;

	git_error_clear();
	cl_assert(git_error_last() == NULL);

	git_error_set_oom();

	cl_assert(git_error_last() != NULL);
	cl_assert(git_error_last()->klass == GIT_ERROR_NOMEMORY);
	str_in_error = strstr(git_error_last()->message, "memory");
	cl_assert(str_in_error != NULL);

	git_error_clear();

	git_error_set_str(GIT_ERROR_REPOSITORY, "This is a test");

	cl_assert(git_error_last() != NULL);
	str_in_error = strstr(git_error_last()->message, "This is a test");
	cl_assert(str_in_error != NULL);

	git_error_clear();
	cl_assert(git_error_last() == NULL);
}

#include "common.h"
#include "util.h"
#include "posix.h"

void test_core_errors__new_school(void)
{
	char *str_in_error;

	git_error_clear();
	cl_assert(git_error_last() == NULL);

	git_error_set_oom(); /* internal fn */

	cl_assert(git_error_last() != NULL);
	cl_assert(git_error_last()->klass == GIT_ERROR_NOMEMORY);
	str_in_error = strstr(git_error_last()->message, "memory");
	cl_assert(str_in_error != NULL);

	git_error_clear();

	git_error_set(GIT_ERROR_REPOSITORY, "This is a test"); /* internal fn */

	cl_assert(git_error_last() != NULL);
	str_in_error = strstr(git_error_last()->message, "This is a test");
	cl_assert(str_in_error != NULL);

	git_error_clear();
	cl_assert(git_error_last() == NULL);

	do {
		struct stat st;
		memset(&st, 0, sizeof(st));
		cl_assert(p_lstat("this_file_does_not_exist", &st) < 0);
		GIT_UNUSED(st);
	} while (false);
	git_error_set(GIT_ERROR_OS, "stat failed"); /* internal fn */

	cl_assert(git_error_last() != NULL);
	str_in_error = strstr(git_error_last()->message, "stat failed");
	cl_assert(str_in_error != NULL);
	cl_assert(git__prefixcmp(str_in_error, "stat failed: ") == 0);
	cl_assert(strlen(str_in_error) > strlen("stat failed: "));

#ifdef GIT_WIN32
	git_error_clear();

	/* The MSDN docs use this to generate a sample error */
	cl_assert(GetProcessId(NULL) == 0);
	git_error_set(GIT_ERROR_OS, "GetProcessId failed"); /* internal fn */

	cl_assert(git_error_last() != NULL);
	str_in_error = strstr(git_error_last()->message, "GetProcessId failed");
	cl_assert(str_in_error != NULL);
	cl_assert(git__prefixcmp(str_in_error, "GetProcessId failed: ") == 0);
	cl_assert(strlen(str_in_error) > strlen("GetProcessId failed: "));
#endif

	git_error_clear();
}

void test_core_errors__restore(void)
{
	git_error_state err_state = {0};

	git_error_clear();
	cl_assert(git_error_last() == NULL);

	cl_assert_equal_i(0, git_error_state_capture(&err_state, 0));

	memset(&err_state, 0x0, sizeof(git_error_state));

	git_error_set(42, "Foo: %s", "bar");
	cl_assert_equal_i(-1, git_error_state_capture(&err_state, -1));

	cl_assert(git_error_last() == NULL);

	git_error_set(99, "Bar: %s", "foo");

	git_error_state_restore(&err_state);

	cl_assert_equal_i(42, git_error_last()->klass);
	cl_assert_equal_s("Foo: bar", git_error_last()->message);
}

void test_core_errors__free_state(void)
{
	git_error_state err_state = {0};

	git_error_clear();

	git_error_set(42, "Foo: %s", "bar");
	cl_assert_equal_i(-1, git_error_state_capture(&err_state, -1));

	git_error_set(99, "Bar: %s", "foo");

	git_error_state_free(&err_state);

	cl_assert_equal_i(99, git_error_last()->klass);
	cl_assert_equal_s("Bar: foo", git_error_last()->message);

	git_error_state_restore(&err_state);

	cl_assert(git_error_last() == NULL);
}

void test_core_errors__restore_oom(void)
{
	git_error_state err_state = {0};
	const git_error *oom_error = NULL;

	git_error_clear();

	git_error_set_oom(); /* internal fn */
	oom_error = git_error_last();
	cl_assert(oom_error);

	cl_assert_equal_i(-1, git_error_state_capture(&err_state, -1));

	cl_assert(git_error_last() == NULL);
	cl_assert_equal_i(GIT_ERROR_NOMEMORY, err_state.error_msg.klass);
	cl_assert_equal_s("Out of memory", err_state.error_msg.message);

	git_error_state_restore(&err_state);

	cl_assert(git_error_last()->klass == GIT_ERROR_NOMEMORY);
	cl_assert_(git_error_last() == oom_error, "static oom error not restored");

	git_error_clear();
}

static int test_arraysize_multiply(size_t nelem, size_t size)
{
	size_t out;
	GIT_ERROR_CHECK_ALLOC_MULTIPLY(&out, nelem, size);
	return 0;
}

void test_core_errors__integer_overflow_alloc_multiply(void)
{
	cl_git_pass(test_arraysize_multiply(10, 10));
	cl_git_pass(test_arraysize_multiply(1000, 1000));
	cl_git_pass(test_arraysize_multiply(SIZE_MAX/sizeof(void *), sizeof(void *)));
	cl_git_pass(test_arraysize_multiply(0, 10));
	cl_git_pass(test_arraysize_multiply(10, 0));

	cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, sizeof(void *)));
	cl_git_fail(test_arraysize_multiply((SIZE_MAX/sizeof(void *))+1, sizeof(void *)));

	cl_assert_equal_i(GIT_ERROR_NOMEMORY, git_error_last()->klass);
	cl_assert_equal_s("Out of memory", git_error_last()->message);
}

static int test_arraysize_add(size_t one, size_t two)
{
	size_t out;
	GIT_ERROR_CHECK_ALLOC_ADD(&out, one, two);
	return 0;
}

void test_core_errors__integer_overflow_alloc_add(void)
{
	cl_git_pass(test_arraysize_add(10, 10));
	cl_git_pass(test_arraysize_add(1000, 1000));
	cl_git_pass(test_arraysize_add(SIZE_MAX-10, 10));

	cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, 2));
	cl_git_fail(test_arraysize_multiply(SIZE_MAX, SIZE_MAX));

	cl_assert_equal_i(GIT_ERROR_NOMEMORY, git_error_last()->klass);
	cl_assert_equal_s("Out of memory", git_error_last()->message);
}

void test_core_errors__integer_overflow_sets_oom(void)
{
	size_t out;

	git_error_clear();
	cl_assert(!GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX-1, 1));
	cl_assert_equal_p(NULL, git_error_last());

	git_error_clear();
	cl_assert(!GIT_ADD_SIZET_OVERFLOW(&out, 42, 69));
	cl_assert_equal_p(NULL, git_error_last());

	git_error_clear();
	cl_assert(GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX, SIZE_MAX));
	cl_assert_equal_i(GIT_ERROR_NOMEMORY, git_error_last()->klass);
	cl_assert_equal_s("Out of memory", git_error_last()->message);

	git_error_clear();
	cl_assert(GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX, SIZE_MAX));
	cl_assert_equal_i(GIT_ERROR_NOMEMORY, git_error_last()->klass);
	cl_assert_equal_s("Out of memory", git_error_last()->message);
}