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selftests/bpf: Extract insert_test from parse_test_list

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Split the logic to insert new tests into test filter sets out from
parse_test_list.

Fix the subtest insertion logic to reuse an existing top-level test
filter, which prevents the creation of duplicate top-level test filters
each with a single subtest.

Signed-off-by: Stephen Veiss <sveiss@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20230427225333.3506052-2-sveiss@meta.com
This commit is contained in:
Stephen Veiss 2023-04-27 15:53:32 -07:00 committed by Andrii Nakryiko
parent c39028b333
commit 0a5c0de8b6
2 changed files with 117 additions and 74 deletions
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13
tools/testing/selftests/bpf/prog_tests/arg_parsing.c
View file

@ -96,6 +96,19 @@ static void test_parse_test_list(void)
goto error;
ASSERT_OK(strcmp("*bpf_cookie*", set.tests[0].name), "test name");
ASSERT_OK(strcmp("*trace*", set.tests[0].subtests[0]), "subtest name");
free_test_filter_set(&set);
ASSERT_OK(parse_test_list("t/subtest1,t/subtest2", &set, true),
"parsing");
if (!ASSERT_EQ(set.cnt, 1, "count of test filters"))
goto error;
if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
goto error;
if (!ASSERT_EQ(set.tests[0].subtest_cnt, 2, "subtest filters count"))
goto error;
ASSERT_OK(strcmp("t", set.tests[0].name), "test name");
ASSERT_OK(strcmp("subtest1", set.tests[0].subtests[0]), "subtest name");
ASSERT_OK(strcmp("subtest2", set.tests[0].subtests[1]), "subtest name");
error:
free_test_filter_set(&set);
}

178
tools/testing/selftests/bpf/testing_helpers.c
View file

@ -70,92 +70,122 @@ int parse_num_list(const char *s, bool **num_set, int *num_set_len)
return 0;
}
static int do_insert_test(struct test_filter_set *set,
char *test_str,
char *subtest_str)
{
struct test_filter *tmp, *test;
char **ctmp;
int i;
for (i = 0; i < set->cnt; i++) {
test = &set->tests[i];
if (strcmp(test_str, test->name) == 0) {
free(test_str);
goto subtest;
}
}
tmp = realloc(set->tests, sizeof(*test) * (set->cnt + 1));
if (!tmp)
return -ENOMEM;
set->tests = tmp;
test = &set->tests[set->cnt];
test->name = test_str;
test->subtests = NULL;
test->subtest_cnt = 0;
set->cnt++;
subtest:
if (!subtest_str)
return 0;
for (i = 0; i < test->subtest_cnt; i++) {
if (strcmp(subtest_str, test->subtests[i]) == 0) {
free(subtest_str);
return 0;
}
}
ctmp = realloc(test->subtests,
sizeof(*test->subtests) * (test->subtest_cnt + 1));
if (!ctmp)
return -ENOMEM;
test->subtests = ctmp;
test->subtests[test->subtest_cnt] = subtest_str;
test->subtest_cnt++;
return 0;
}
static int insert_test(struct test_filter_set *set,
char *test_spec,
bool is_glob_pattern)
{
char *pattern, *subtest_str, *ext_test_str, *ext_subtest_str = NULL;
int glob_chars = 0;
if (is_glob_pattern) {
pattern = "%s";
} else {
pattern = "*%s*";
glob_chars = 2;
}
subtest_str = strchr(test_spec, '/');
if (subtest_str) {
*subtest_str = '\0';
subtest_str += 1;
}
ext_test_str = malloc(strlen(test_spec) + glob_chars + 1);
if (!ext_test_str)
goto err;
sprintf(ext_test_str, pattern, test_spec);
if (subtest_str) {
ext_subtest_str = malloc(strlen(subtest_str) + glob_chars + 1);
if (!ext_subtest_str)
goto err;
sprintf(ext_subtest_str, pattern, subtest_str);
}
return do_insert_test(set, ext_test_str, ext_subtest_str);
err:
free(ext_test_str);
free(ext_subtest_str);
return -ENOMEM;
}
int parse_test_list(const char *s,
struct test_filter_set *set,
bool is_glob_pattern)
{
char *input, *state = NULL, *next;
struct test_filter *tmp, *tests = NULL;
int i, j, cnt = 0;
char *input, *state = NULL, *test_spec;
int err = 0;
input = strdup(s);
if (!input)
return -ENOMEM;
while ((next = strtok_r(state ? NULL : input, ",", &state))) {
char *subtest_str = strchr(next, '/');
char *pattern = NULL;
int glob_chars = 0;
tmp = realloc(tests, sizeof(*tests) * (cnt + 1));
if (!tmp)
goto err;
tests = tmp;
tests[cnt].subtest_cnt = 0;
tests[cnt].subtests = NULL;
if (is_glob_pattern) {
pattern = "%s";
} else {
pattern = "*%s*";
glob_chars = 2;
}
if (subtest_str) {
char **tmp_subtests = NULL;
int subtest_cnt = tests[cnt].subtest_cnt;
*subtest_str = '\0';
subtest_str += 1;
tmp_subtests = realloc(tests[cnt].subtests,
sizeof(*tmp_subtests) *
(subtest_cnt + 1));
if (!tmp_subtests)
goto err;
tests[cnt].subtests = tmp_subtests;
tests[cnt].subtests[subtest_cnt] =
malloc(strlen(subtest_str) + glob_chars + 1);
if (!tests[cnt].subtests[subtest_cnt])
goto err;
sprintf(tests[cnt].subtests[subtest_cnt],
pattern,
subtest_str);
tests[cnt].subtest_cnt++;
}
tests[cnt].name = malloc(strlen(next) + glob_chars + 1);
if (!tests[cnt].name)
goto err;
sprintf(tests[cnt].name, pattern, next);
cnt++;
while ((test_spec = strtok_r(state ? NULL : input, ",", &state))) {
err = insert_test(set, test_spec, is_glob_pattern);
if (err)
break;
}
tmp = realloc(set->tests, sizeof(*tests) * (cnt + set->cnt));
if (!tmp)
goto err;
memcpy(tmp + set->cnt, tests, sizeof(*tests) * cnt);
set->tests = tmp;
set->cnt += cnt;
free(tests);
free(input);
return 0;
err:
for (i = 0; i < cnt; i++) {
for (j = 0; j < tests[i].subtest_cnt; j++)
free(tests[i].subtests[j]);
free(tests[i].name);
}
free(tests);
free(input);
return -ENOMEM;
return err;
}
__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info)