summaryrefslogtreecommitdiff
path: root/tests/core/structinit.c
blob: d24da874da59f08d167e0dec38693dbe75dade19 (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
#include "clar_libgit2.h"
#include <git2/sys/commit_graph.h>
#include <git2/sys/config.h>
#include <git2/sys/filter.h>
#include <git2/sys/odb_backend.h>
#include <git2/sys/refdb_backend.h>
#include <git2/sys/transport.h>

#define STRINGIFY(s) #s

/* Checks two conditions for the specified structure:
 *     1. That the initializers for the latest version produces the same
 *        in-memory representation.
 *     2. That the function-based initializer supports all versions from 1...n,
 *        where n is the latest version (often represented by GIT_*_VERSION).
 *
 * Parameters:
 *     structname: The name of the structure to test, e.g. git_blame_options.
 *     structver: The latest version of the specified structure.
 *     macroinit: The macro that initializes the latest version of the structure.
 *     funcinitname: The function that initializes the structure. Must have the
 *                   signature "int (structname* instance, int version)".
 */
#define CHECK_MACRO_FUNC_INIT_EQUAL(structname, structver, macroinit, funcinitname) \
do { \
	structname structname##_macro_latest = macroinit; \
	structname structname##_func_latest; \
	int structname##_curr_ver = structver - 1; \
	memset(&structname##_func_latest, 0, sizeof(structname##_func_latest)); \
	cl_git_pass(funcinitname(&structname##_func_latest, structver)); \
	options_cmp(&structname##_macro_latest, &structname##_func_latest, \
		sizeof(structname), STRINGIFY(structname)); \
	\
	while (structname##_curr_ver > 0) \
	{ \
		structname macro; \
		cl_git_pass(funcinitname(&macro, structname##_curr_ver)); \
		structname##_curr_ver--; \
	}\
} while(0)

static void options_cmp(void *one, void *two, size_t size, const char *name)
{
	size_t i;

	for (i = 0; i < size; i++) {
		if (((char *)one)[i] != ((char *)two)[i]) {
			char desc[1024];

			p_snprintf(desc, 1024, "Difference in %s at byte %" PRIuZ ": macro=%u / func=%u",
				name, i, ((char *)one)[i], ((char *)two)[i]);
			clar__fail(__FILE__, __func__, __LINE__,
				"Difference between macro and function options initializer",
				desc, 0);
			return;
		}
	}
}

void test_core_structinit__compare(void)
{
	/* These tests assume that they can memcmp() two structures that were
	 * initialized with the same static initializer.  Eg,
	 * git_blame_options = GIT_BLAME_OPTIONS_INIT;
	 *
	 * This assumption fails when there is padding between structure members,
	 * which is not guaranteed to be initialized to anything sane at all.
	 *
	 * Assume most compilers, in a debug build, will clear that memory for
	 * us or set it to sentinal markers.  Etc.
	 */
#if !defined(DEBUG) && !defined(_DEBUG)
	clar__skip();
#endif

	/* apply */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_apply_options, GIT_APPLY_OPTIONS_VERSION, \
		GIT_APPLY_OPTIONS_INIT, git_apply_options_init);

	/* blame */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_blame_options, GIT_BLAME_OPTIONS_VERSION, \
		GIT_BLAME_OPTIONS_INIT, git_blame_options_init);

	/* blob_filter_options */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_blob_filter_options, GIT_BLOB_FILTER_OPTIONS_VERSION, \
		GIT_BLOB_FILTER_OPTIONS_INIT, git_blob_filter_options_init);

	/* checkout */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_checkout_options, GIT_CHECKOUT_OPTIONS_VERSION, \
		GIT_CHECKOUT_OPTIONS_INIT, git_checkout_options_init);

	/* clone */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_clone_options, GIT_CLONE_OPTIONS_VERSION, \
		GIT_CLONE_OPTIONS_INIT, git_clone_options_init);

	/* commit_graph_writer */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_commit_graph_writer_options, \
		GIT_COMMIT_GRAPH_WRITER_OPTIONS_VERSION, \
		GIT_COMMIT_GRAPH_WRITER_OPTIONS_INIT, \
		git_commit_graph_writer_options_init);

	/* diff */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_diff_options, GIT_DIFF_OPTIONS_VERSION, \
		GIT_DIFF_OPTIONS_INIT, git_diff_options_init);

	/* diff_find */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_diff_find_options, GIT_DIFF_FIND_OPTIONS_VERSION, \
		GIT_DIFF_FIND_OPTIONS_INIT, git_diff_find_options_init);

	/* filter */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_filter, GIT_FILTER_VERSION, \
		GIT_FILTER_INIT, git_filter_init);

	/* merge_file_input */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_merge_file_input, GIT_MERGE_FILE_INPUT_VERSION, \
		GIT_MERGE_FILE_INPUT_INIT, git_merge_file_input_init);

	/* merge_file */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_merge_file_options, GIT_MERGE_FILE_OPTIONS_VERSION, \
		GIT_MERGE_FILE_OPTIONS_INIT, git_merge_file_options_init);

	/* merge_tree */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_merge_options, GIT_MERGE_OPTIONS_VERSION, \
		GIT_MERGE_OPTIONS_INIT, git_merge_options_init);

	/* push */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_push_options, GIT_PUSH_OPTIONS_VERSION, \
		GIT_PUSH_OPTIONS_INIT, git_push_options_init);

	/* remote */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_remote_callbacks, GIT_REMOTE_CALLBACKS_VERSION, \
		GIT_REMOTE_CALLBACKS_INIT, git_remote_init_callbacks);

	/* repository_init */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_repository_init_options, GIT_REPOSITORY_INIT_OPTIONS_VERSION, \
		GIT_REPOSITORY_INIT_OPTIONS_INIT, git_repository_init_options_init);

	/* revert */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_revert_options, GIT_REVERT_OPTIONS_VERSION, \
		GIT_REVERT_OPTIONS_INIT, git_revert_options_init);

	/* stash apply */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_stash_apply_options, GIT_STASH_APPLY_OPTIONS_VERSION, \
		GIT_STASH_APPLY_OPTIONS_INIT, git_stash_apply_options_init);

	/* status */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_status_options, GIT_STATUS_OPTIONS_VERSION, \
		GIT_STATUS_OPTIONS_INIT, git_status_options_init);

	/* transport */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_transport, GIT_TRANSPORT_VERSION, \
		GIT_TRANSPORT_INIT, git_transport_init);

	/* config_backend */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_config_backend, GIT_CONFIG_BACKEND_VERSION, \
		GIT_CONFIG_BACKEND_INIT, git_config_init_backend);

	/* odb_backend */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_odb_backend, GIT_ODB_BACKEND_VERSION, \
		GIT_ODB_BACKEND_INIT, git_odb_init_backend);

	/* refdb_backend */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_refdb_backend, GIT_REFDB_BACKEND_VERSION, \
		GIT_REFDB_BACKEND_INIT, git_refdb_init_backend);

	/* submodule update */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_submodule_update_options, GIT_SUBMODULE_UPDATE_OPTIONS_VERSION, \
		GIT_SUBMODULE_UPDATE_OPTIONS_INIT, git_submodule_update_options_init);

	/* submodule update */
	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_proxy_options, GIT_PROXY_OPTIONS_VERSION, \
		GIT_PROXY_OPTIONS_INIT, git_proxy_options_init);

	CHECK_MACRO_FUNC_INIT_EQUAL( \
		git_diff_patchid_options, GIT_DIFF_PATCHID_OPTIONS_VERSION, \
		GIT_DIFF_PATCHID_OPTIONS_INIT, git_diff_patchid_options_init);
}