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test-reach: test is_descendant_of

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The is_descendant_of method takes a single commit as its first parameter
and a list of commits as its second parameter. Extend the input of the
'test-tool reach' command to take multiple lines of the form
"X:<committish>" to construct a list of commits. Pass these to
is_descendant_of and create tests that check each result.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2018-07-20 16:33:18 +00:00 committed by Junio C Hamano
parent 5cd52de326
commit 6255232ec1
2 changed files with 30 additions and 0 deletions
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8
t/helper/test-reach.c
View file

@ -10,6 +10,7 @@ int cmd__reach(int ac, const char **av)
{
struct object_id oid_A, oid_B;
struct commit *A, *B;
struct commit_list *X;
struct strbuf buf = STRBUF_INIT;
struct repository *r = the_repository;
@ -19,6 +20,7 @@ int cmd__reach(int ac, const char **av)
exit(1);
A = B = NULL;
X = NULL;
while (strbuf_getline(&buf, stdin) != EOF) {
struct object_id oid;
@ -54,6 +56,10 @@ int cmd__reach(int ac, const char **av)
B = c;
break;
case 'X':
commit_list_insert(c, &X);
break;
default:
die("unexpected start of line: %c", buf.buf[0]);
}
@ -64,6 +70,8 @@ int cmd__reach(int ac, const char **av)
printf("%s(A,B):%d\n", av[1], ref_newer(&oid_A, &oid_B));
else if (!strcmp(av[1], "in_merge_bases"))
printf("%s(A,B):%d\n", av[1], in_merge_bases(A, B));
else if (!strcmp(av[1], "is_descendant_of"))
printf("%s(A,X):%d\n", av[1], is_descendant_of(A, X));
exit(0);
}

22
t/t6600-test-reach.sh
View file

@ -101,4 +101,26 @@ test_expect_success 'in_merge_bases:miss' '
test_three_modes in_merge_bases
'
test_expect_success 'is_descendant_of:hit' '
cat >input <<-\EOF &&
A:commit-5-7
X:commit-4-8
X:commit-6-6
X:commit-1-1
EOF
echo "is_descendant_of(A,X):1" >expect &&
test_three_modes is_descendant_of
'
test_expect_success 'is_descendant_of:miss' '
cat >input <<-\EOF &&
A:commit-6-8
X:commit-5-9
X:commit-4-10
X:commit-7-6
EOF
echo "is_descendant_of(A,X):0" >expect &&
test_three_modes is_descendant_of
'
test_done