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authorBrendan Higgins <brendanhiggins@google.com>2020-08-04 23:47:44 +0300
committerShuah Khan <skhan@linuxfoundation.org>2020-10-09 23:37:49 +0300
commit45dcbb6f5ef78b0a9c1b91bea2f6f227642a65aa (patch)
tree3b1166347c5ae73bf8f4b7101651a1bb633474db /lib/kunit
parent8c0d884986ba22f1020be9c02e41c030890ee8f2 (diff)
downloadlinux-45dcbb6f5ef78b0a9c1b91bea2f6f227642a65aa.tar.xz
kunit: test: add test plan to KUnit TAP format
TAP 14 allows an optional test plan to be emitted before the start of the start of testing[1]; this is valuable because it makes it possible for a test harness to detect whether the number of tests run matches the number of tests expected to be run, ensuring that no tests silently failed. Link[1]: https://github.com/isaacs/testanything.github.io/blob/tap14/tap-version-14-specification.md#the-plan Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'lib/kunit')
-rw-r--r--lib/kunit/executor.c17
-rw-r--r--lib/kunit/test.c11
2 files changed, 17 insertions, 11 deletions
diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index 4aab7f70a88c..a95742a4ece7 100644
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -11,10 +11,27 @@ extern struct kunit_suite * const * const __kunit_suites_end[];
#if IS_BUILTIN(CONFIG_KUNIT)
+static void kunit_print_tap_header(void)
+{
+ struct kunit_suite * const * const *suites, * const *subsuite;
+ int num_of_suites = 0;
+
+ for (suites = __kunit_suites_start;
+ suites < __kunit_suites_end;
+ suites++)
+ for (subsuite = *suites; *subsuite != NULL; subsuite++)
+ num_of_suites++;
+
+ pr_info("TAP version 14\n");
+ pr_info("1..%d\n", num_of_suites);
+}
+
int kunit_run_all_tests(void)
{
struct kunit_suite * const * const *suites;
+ kunit_print_tap_header();
+
for (suites = __kunit_suites_start;
suites < __kunit_suites_end;
suites++)
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 3fd89f91937f..de07876b6601 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -20,16 +20,6 @@ static void kunit_set_failure(struct kunit *test)
WRITE_ONCE(test->success, false);
}
-static void kunit_print_tap_version(void)
-{
- static bool kunit_has_printed_tap_version;
-
- if (!kunit_has_printed_tap_version) {
- pr_info("TAP version 14\n");
- kunit_has_printed_tap_version = true;
- }
-}
-
/*
* Append formatted message to log, size of which is limited to
* KUNIT_LOG_SIZE bytes (including null terminating byte).
@@ -69,7 +59,6 @@ EXPORT_SYMBOL_GPL(kunit_suite_num_test_cases);
static void kunit_print_subtest_start(struct kunit_suite *suite)
{
- kunit_print_tap_version();
kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT "# Subtest: %s",
suite->name);
kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT "1..%zd",