summaryrefslogtreecommitdiff
path: root/tests/libgit2/diff/index.c
blob: 6b91f8883b44dd0bc5dd310c3ebc3e982750e897 (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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
#include "clar_libgit2.h"
#include "diff_helpers.h"

static git_repository *g_repo = NULL;

void test_diff_index__initialize(void)
{
	g_repo = cl_git_sandbox_init("status");
}

void test_diff_index__cleanup(void)
{
	cl_git_sandbox_cleanup();
}

void test_diff_index__0(void)
{
	/* grabbed a couple of commit oids from the history of the attr repo */
	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
	const char *b_commit = "0017bd4ab1ec3"; /* the start */
	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
	git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
	git_diff *diff = NULL;
	diff_expects exp;

	cl_assert(a);
	cl_assert(b);

	opts.context_lines = 1;
	opts.interhunk_lines = 1;

	memset(&exp, 0, sizeof(exp));

	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, a, NULL, &opts));

	cl_git_pass(git_diff_foreach(
		diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));

	/* to generate these values:
	 * - cd to tests/resources/status,
	 * - mv .gitted .git
	 * - git diff --name-status --cached 26a125ee1bf
	 * - git diff -U1 --cached 26a125ee1bf
	 * - mv .git .gitted
	 */
	cl_assert_equal_i(8, exp.files);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_ADDED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);

	cl_assert_equal_i(8, exp.hunks);

	cl_assert_equal_i(11, exp.lines);
	cl_assert_equal_i(3, exp.line_ctxt);
	cl_assert_equal_i(6, exp.line_adds);
	cl_assert_equal_i(2, exp.line_dels);

	git_diff_free(diff);
	diff = NULL;
	memset(&exp, 0, sizeof(exp));

	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, b, NULL, &opts));

	cl_git_pass(git_diff_foreach(
		diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));

	/* to generate these values:
	 * - cd to tests/resources/status,
	 * - mv .gitted .git
	 * - git diff --name-status --cached 0017bd4ab1ec3
	 * - git diff -U1 --cached 0017bd4ab1ec3
	 * - mv .git .gitted
	 */
	cl_assert_equal_i(12, exp.files);
	cl_assert_equal_i(7, exp.file_status[GIT_DELTA_ADDED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);

	cl_assert_equal_i(12, exp.hunks);

	cl_assert_equal_i(16, exp.lines);
	cl_assert_equal_i(3, exp.line_ctxt);
	cl_assert_equal_i(11, exp.line_adds);
	cl_assert_equal_i(2, exp.line_dels);

	git_diff_free(diff);
	diff = NULL;

	git_tree_free(a);
	git_tree_free(b);
}

static int diff_stop_after_2_files(
	const git_diff_delta *delta,
	float progress,
	void *payload)
{
	diff_expects *e = payload;

	GIT_UNUSED(progress);
	GIT_UNUSED(delta);

	e->files++;

	return (e->files == 2);
}

void test_diff_index__1(void)
{
	/* grabbed a couple of commit oids from the history of the attr repo */
	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
	const char *b_commit = "0017bd4ab1ec3"; /* the start */
	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
	git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
	git_diff *diff = NULL;
	diff_expects exp;

	cl_assert(a);
	cl_assert(b);

	opts.context_lines = 1;
	opts.interhunk_lines = 1;

	memset(&exp, 0, sizeof(exp));

	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, a, NULL, &opts));

	cl_assert_equal_i(1, git_diff_foreach(
		diff, diff_stop_after_2_files, NULL, NULL, NULL, &exp) );

	cl_assert_equal_i(2, exp.files);

	git_diff_free(diff);
	diff = NULL;

	git_tree_free(a);
	git_tree_free(b);
}

void test_diff_index__checks_options_version(void)
{
	const char *a_commit = "26a125ee1bf";
	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
	git_diff *diff = NULL;
	const git_error *err;

	opts.version = 0;
	cl_git_fail(git_diff_tree_to_index(&diff, g_repo, a, NULL, &opts));
	err = git_error_last();
	cl_assert_equal_i(GIT_ERROR_INVALID, err->klass);
	cl_assert_equal_p(diff, NULL);

	git_error_clear();
	opts.version = 1024;
	cl_git_fail(git_diff_tree_to_index(&diff, g_repo, a, NULL, &opts));
	err = git_error_last();
	cl_assert_equal_i(GIT_ERROR_INVALID, err->klass);
	cl_assert_equal_p(diff, NULL);

	git_tree_free(a);
}

static void do_conflicted_diff(diff_expects *exp, unsigned long flags)
{
	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
	git_index_entry ancestor = {{0}}, ours = {{0}}, theirs = {{0}};
	git_diff *diff = NULL;
	git_index *index;

	cl_assert(a);

	opts.context_lines = 1;
	opts.interhunk_lines = 1;
	opts.flags |= flags;

	memset(exp, 0, sizeof(diff_expects));

	cl_git_pass(git_repository_index(&index, g_repo));

	ancestor.path = ours.path = theirs.path = "staged_changes";
	ancestor.mode = ours.mode = theirs.mode = GIT_FILEMODE_BLOB;

	git_oid_fromstr(&ancestor.id, "d427e0b2e138501a3d15cc376077a3631e15bd46", GIT_OID_SHA1);
	git_oid_fromstr(&ours.id, "ee3fa1b8c00aff7fe02065fdb50864bb0d932ccf", GIT_OID_SHA1);
	git_oid_fromstr(&theirs.id, "2bd0a343aeef7a2cf0d158478966a6e587ff3863", GIT_OID_SHA1);

	cl_git_pass(git_index_conflict_add(index, &ancestor, &ours, &theirs));
	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, a, index, &opts));

	cl_git_pass(git_diff_foreach(
		diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, exp));

	git_diff_free(diff);
	git_tree_free(a);
	git_index_free(index);
}

void test_diff_index__reports_conflicts(void)
{
	diff_expects exp;

	do_conflicted_diff(&exp, 0);

	cl_assert_equal_i(8, exp.files);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_ADDED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
	cl_assert_equal_i(1, exp.file_status[GIT_DELTA_CONFLICTED]);

	cl_assert_equal_i(7, exp.hunks);

	cl_assert_equal_i(9, exp.lines);
	cl_assert_equal_i(2, exp.line_ctxt);
	cl_assert_equal_i(5, exp.line_adds);
	cl_assert_equal_i(2, exp.line_dels);
}

void test_diff_index__reports_conflicts_when_reversed(void)
{
	diff_expects exp;

	do_conflicted_diff(&exp, GIT_DIFF_REVERSE);

	cl_assert_equal_i(8, exp.files);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_ADDED]);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_DELETED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
	cl_assert_equal_i(1, exp.file_status[GIT_DELTA_CONFLICTED]);

	cl_assert_equal_i(7, exp.hunks);

	cl_assert_equal_i(9, exp.lines);
	cl_assert_equal_i(2, exp.line_ctxt);
	cl_assert_equal_i(2, exp.line_adds);
	cl_assert_equal_i(5, exp.line_dels);
}

void test_diff_index__not_in_head_conflicted(void)
{
	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
	git_index_entry theirs = {{0}};
	git_index *index;
	git_diff *diff;
	const git_diff_delta *delta;

	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);

	cl_git_pass(git_repository_index(&index, g_repo));
	cl_git_pass(git_index_read_tree(index, a));

	theirs.path = "file_not_in_head";
	theirs.mode = GIT_FILEMODE_BLOB;
	git_oid_fromstr(&theirs.id, "2bd0a343aeef7a2cf0d158478966a6e587ff3863", GIT_OID_SHA1);
	cl_git_pass(git_index_conflict_add(index, NULL, NULL, &theirs));

	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, a, index, NULL));

	cl_assert_equal_i(git_diff_num_deltas(diff), 1);
	delta = git_diff_get_delta(diff, 0);
	cl_assert_equal_i(delta->status, GIT_DELTA_CONFLICTED);

	git_diff_free(diff);
	git_index_free(index);
	git_tree_free(a);
}

void test_diff_index__to_index(void)
{
	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
	git_tree *old_tree;
	git_index *old_index;
	git_index *new_index;
	git_diff *diff;
	diff_expects exp;

	cl_git_pass(git_index_new(&old_index));
	old_tree = resolve_commit_oid_to_tree(g_repo, a_commit);
	cl_git_pass(git_index_read_tree(old_index, old_tree));

	cl_git_pass(git_repository_index(&new_index, g_repo));

	cl_git_pass(git_diff_index_to_index(&diff, g_repo, old_index, new_index, NULL));

	memset(&exp, 0, sizeof(diff_expects));
	cl_git_pass(git_diff_foreach(
		diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
	cl_assert_equal_i(8, exp.files);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_ADDED]);
	cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
	cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);
	cl_assert_equal_i(0, exp.file_status[GIT_DELTA_CONFLICTED]);

	git_diff_free(diff);
	git_index_free(new_index);
	git_index_free(old_index);
	git_tree_free(old_tree);
}