Merge branch 'bw/protocol-v2'
[git] / t / t6600-test-reach.sh
1 #!/bin/sh
2
3 test_description='basic commit reachability tests'
4
5 . ./test-lib.sh
6
7 # Construct a grid-like commit graph with points (x,y)
8 # with 1 <= x <= 10, 1 <= y <= 10, where (x,y) has
9 # parents (x-1, y) and (x, y-1), keeping in mind that
10 # we drop a parent if a coordinate is nonpositive.
11 #
12 #             (10,10)
13 #            /       \
14 #         (10,9)    (9,10)
15 #        /     \   /      \
16 #    (10,8)    (9,9)      (8,10)
17 #   /     \    /   \      /    \
18 #         ( continued...)
19 #   \     /    \   /      \    /
20 #    (3,1)     (2,2)      (1,3)
21 #        \     /    \     /
22 #         (2,1)      (2,1)
23 #              \    /
24 #              (1,1)
25 #
26 # We use branch 'commit-x-y' to refer to (x,y).
27 # This grid allows interesting reachability and
28 # non-reachability queries: (x,y) can reach (x',y')
29 # if and only if x' <= x and y' <= y.
30 test_expect_success 'setup' '
31         for i in $(test_seq 1 10)
32         do
33                 test_commit "1-$i" &&
34                 git branch -f commit-1-$i
35         done &&
36         for j in $(test_seq 1 9)
37         do
38                 git reset --hard commit-$j-1 &&
39                 x=$(($j + 1)) &&
40                 test_commit "$x-1" &&
41                 git branch -f commit-$x-1 &&
42
43                 for i in $(test_seq 2 10)
44                 do
45                         git merge commit-$j-$i -m "$x-$i" &&
46                         git branch -f commit-$x-$i
47                 done
48         done &&
49         git commit-graph write --reachable &&
50         mv .git/objects/info/commit-graph commit-graph-full &&
51         git show-ref -s commit-5-5 | git commit-graph write --stdin-commits &&
52         mv .git/objects/info/commit-graph commit-graph-half &&
53         git config core.commitGraph true
54 '
55
56 test_three_modes () {
57         test_when_finished rm -rf .git/objects/info/commit-graph &&
58         test-tool reach $1 <input >actual &&
59         test_cmp expect actual &&
60         cp commit-graph-full .git/objects/info/commit-graph &&
61         test-tool reach $1 <input >actual &&
62         test_cmp expect actual &&
63         cp commit-graph-half .git/objects/info/commit-graph &&
64         test-tool reach $1 <input >actual &&
65         test_cmp expect actual
66 }
67
68 test_expect_success 'ref_newer:miss' '
69         cat >input <<-\EOF &&
70         A:commit-5-7
71         B:commit-4-9
72         EOF
73         echo "ref_newer(A,B):0" >expect &&
74         test_three_modes ref_newer
75 '
76
77 test_expect_success 'ref_newer:hit' '
78         cat >input <<-\EOF &&
79         A:commit-5-7
80         B:commit-2-3
81         EOF
82         echo "ref_newer(A,B):1" >expect &&
83         test_three_modes ref_newer
84 '
85
86 test_expect_success 'in_merge_bases:hit' '
87         cat >input <<-\EOF &&
88         A:commit-5-7
89         B:commit-8-8
90         EOF
91         echo "in_merge_bases(A,B):1" >expect &&
92         test_three_modes in_merge_bases
93 '
94
95 test_expect_success 'in_merge_bases:miss' '
96         cat >input <<-\EOF &&
97         A:commit-6-8
98         B:commit-5-9
99         EOF
100         echo "in_merge_bases(A,B):0" >expect &&
101         test_three_modes in_merge_bases
102 '
103
104 test_expect_success 'is_descendant_of:hit' '
105         cat >input <<-\EOF &&
106         A:commit-5-7
107         X:commit-4-8
108         X:commit-6-6
109         X:commit-1-1
110         EOF
111         echo "is_descendant_of(A,X):1" >expect &&
112         test_three_modes is_descendant_of
113 '
114
115 test_expect_success 'is_descendant_of:miss' '
116         cat >input <<-\EOF &&
117         A:commit-6-8
118         X:commit-5-9
119         X:commit-4-10
120         X:commit-7-6
121         EOF
122         echo "is_descendant_of(A,X):0" >expect &&
123         test_three_modes is_descendant_of
124 '
125
126 test_expect_success 'get_merge_bases_many' '
127         cat >input <<-\EOF &&
128         A:commit-5-7
129         X:commit-4-8
130         X:commit-6-6
131         X:commit-8-3
132         EOF
133         {
134                 echo "get_merge_bases_many(A,X):" &&
135                 git rev-parse commit-5-6 \
136                               commit-4-7 | sort
137         } >expect &&
138         test_three_modes get_merge_bases_many
139 '
140
141 test_expect_success 'reduce_heads' '
142         cat >input <<-\EOF &&
143         X:commit-1-10
144         X:commit-2-8
145         X:commit-3-6
146         X:commit-4-4
147         X:commit-1-7
148         X:commit-2-5
149         X:commit-3-3
150         X:commit-5-1
151         EOF
152         {
153                 echo "reduce_heads(X):" &&
154                 git rev-parse commit-5-1 \
155                               commit-4-4 \
156                               commit-3-6 \
157                               commit-2-8 \
158                               commit-1-10 | sort
159         } >expect &&
160         test_three_modes reduce_heads
161 '
162
163 test_expect_success 'can_all_from_reach:hit' '
164         cat >input <<-\EOF &&
165         X:commit-2-10
166         X:commit-3-9
167         X:commit-4-8
168         X:commit-5-7
169         X:commit-6-6
170         X:commit-7-5
171         X:commit-8-4
172         X:commit-9-3
173         Y:commit-1-9
174         Y:commit-2-8
175         Y:commit-3-7
176         Y:commit-4-6
177         Y:commit-5-5
178         Y:commit-6-4
179         Y:commit-7-3
180         Y:commit-8-1
181         EOF
182         echo "can_all_from_reach(X,Y):1" >expect &&
183         test_three_modes can_all_from_reach
184 '
185
186 test_expect_success 'can_all_from_reach:miss' '
187         cat >input <<-\EOF &&
188         X:commit-2-10
189         X:commit-3-9
190         X:commit-4-8
191         X:commit-5-7
192         X:commit-6-6
193         X:commit-7-5
194         X:commit-8-4
195         X:commit-9-3
196         Y:commit-1-9
197         Y:commit-2-8
198         Y:commit-3-7
199         Y:commit-4-6
200         Y:commit-5-5
201         Y:commit-6-4
202         Y:commit-8-5
203         EOF
204         echo "can_all_from_reach(X,Y):0" >expect &&
205         test_three_modes can_all_from_reach
206 '
207
208 test_expect_success 'commit_contains:hit' '
209         cat >input <<-\EOF &&
210         A:commit-7-7
211         X:commit-2-10
212         X:commit-3-9
213         X:commit-4-8
214         X:commit-5-7
215         X:commit-6-6
216         X:commit-7-5
217         X:commit-8-4
218         X:commit-9-3
219         EOF
220         echo "commit_contains(_,A,X,_):1" >expect &&
221         test_three_modes commit_contains &&
222         test_three_modes commit_contains --tag
223 '
224
225 test_expect_success 'commit_contains:miss' '
226         cat >input <<-\EOF &&
227         A:commit-6-5
228         X:commit-2-10
229         X:commit-3-9
230         X:commit-4-8
231         X:commit-5-7
232         X:commit-6-6
233         X:commit-7-5
234         X:commit-8-4
235         X:commit-9-3
236         EOF
237         echo "commit_contains(_,A,X,_):0" >expect &&
238         test_three_modes commit_contains &&
239         test_three_modes commit_contains --tag
240 '
241
242 test_done