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
|
#!/bin/sh
test_description="merges with unrelated index changes"
. ./test-lib.sh
# Testcase for some simple merges
# A
# o-------o B
# \
# \-----o C
# \
# \---o D
# \
# \-o E
# \
# o F
# Commit A: some file a
# Commit B: adds file b, modifies end of a
# Commit C: adds file c
# Commit D: adds file d, modifies beginning of a
# Commit E: renames a->subdir/a, adds subdir/e
# Commit F: empty commit
test_expect_success 'setup trivial merges' '
test_seq 1 10 >a &&
git add a &&
test_tick && git commit -m A &&
git branch A &&
git branch B &&
git branch C &&
git branch D &&
git branch E &&
git branch F &&
git checkout B &&
echo b >b &&
echo 11 >>a &&
git add a b &&
test_tick && git commit -m B &&
git checkout C &&
echo c >c &&
git add c &&
test_tick && git commit -m C &&
git checkout D &&
test_seq 2 10 >a &&
echo d >d &&
git add a d &&
test_tick && git commit -m D &&
git checkout E &&
mkdir subdir &&
git mv a subdir/a &&
echo e >subdir/e &&
git add subdir &&
test_tick && git commit -m E &&
git checkout F &&
test_tick && git commit --allow-empty -m F
'
test_expect_success 'ff update' '
git reset --hard &&
git checkout A^0 &&
touch random_file && git add random_file &&
git merge E^0 &&
test_must_fail git rev-parse HEAD:random_file &&
test "$(git diff --name-only --cached E)" = "random_file"
'
test_expect_success 'ff update, important file modified' '
git reset --hard &&
git checkout A^0 &&
mkdir subdir &&
touch subdir/e &&
git add subdir/e &&
test_must_fail git merge E^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'resolve, trivial' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s resolve C^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'resolve, non-trivial' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s resolve D^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'recursive' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s recursive C^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'recursive, when merge branch matches merge base' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s recursive F^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'merge-recursive, when index==head but head!=HEAD' '
git reset --hard &&
git checkout C^0 &&
# Make index match B
git diff C B -- | git apply --cached &&
# Merge B & F, with B as "head"
git merge-recursive A -- B F > out &&
test_i18ngrep "Already up to date" out
'
test_expect_success 'recursive, when file has staged changes not matching HEAD nor what a merge would give' '
git reset --hard &&
git checkout B^0 &&
mkdir subdir &&
test_seq 1 10 >subdir/a &&
git add subdir/a &&
# We have staged changes; merge should error out
test_must_fail git merge -s recursive E^0 2>err &&
test_i18ngrep "changes to the following files would be overwritten" err
'
test_expect_success 'recursive, when file has staged changes matching what a merge would give' '
git reset --hard &&
git checkout B^0 &&
mkdir subdir &&
test_seq 1 11 >subdir/a &&
git add subdir/a &&
# We have staged changes; merge should error out
test_must_fail git merge -s recursive E^0 2>err &&
test_i18ngrep "changes to the following files would be overwritten" err
'
test_expect_success 'octopus, unrelated file touched' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge C^0 D^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'octopus, related file removed' '
git reset --hard &&
git checkout B^0 &&
git rm b &&
test_must_fail git merge C^0 D^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'octopus, related file modified' '
git reset --hard &&
git checkout B^0 &&
echo 12 >>a && git add a &&
test_must_fail git merge C^0 D^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'ours' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s ours C^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'subtree' '
git reset --hard &&
git checkout B^0 &&
touch random_file && git add random_file &&
test_must_fail git merge -s subtree E^0 &&
test_path_is_missing .git/MERGE_HEAD
'
test_done
|
