[PATCH v5 2/5] kselftest: create fixture objects

Jakub Kicinski
2020-03-18T01:02:50Z

Grouping tests by fixture will allow us to parametrize
test runs. Create full objects for fixtures.

Add a "global" fixture for tests without a fixture.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
---
v5:
- pass fixture as argument to __run_test() right away,
previously this change was made in the next patch.
---
tools/testing/selftests/kselftest_harness.h | 51 +++++++++++++++------
1 file changed, 38 insertions(+), 13 deletions(-)

diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index aaf58fffc8f7..2dc9b7a63467 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -169,8 +169,10 @@
#define __TEST_IMPL(test_name, _signal) \
static void test_name(struct __test_metadata *_metadata); \
static struct __test_metadata _##test_name##_object = \
- { .name = "global." #test_name, \
- .fn = &test_name, .termsig = _signal, \
+ { .name = #test_name, \
+ .fn = &test_name, \
+ .fixture = &_fixture_global, \
+ .termsig = _signal, \
.timeout = TEST_TIMEOUT_DEFAULT, }; \
static void __attribute__((constructor)) _register_##test_name(void) \
{ \
@@ -212,10 +214,12 @@
* populated and cleaned up using FIXTURE_SETUP() and FIXTURE_TEARDOWN().
*/
#define FIXTURE(fixture_name) \
+ static struct __fixture_metadata _##fixture_name##_fixture_object = \
+ { .name = #fixture_name, }; \
static void __attribute__((constructor)) \
_register_##fixture_name##_data(void) \
{ \
- __fixture_count++; \
+ __register_fixture(&_##fixture_name##_fixture_object); \
} \
FIXTURE_DATA(fixture_name)

@@ -309,8 +313,9 @@
} \
static struct __test_metadata \
_##fixture_name##_##test_name##_object = { \
- .name = #fixture_name "." #test_name, \
+ .name = #test_name, \
.fn = &wrapper_##fixture_name##_##test_name, \
+ .fixture = &_##fixture_name##_fixture_object, \
.termsig = signal, \
.timeout = tmout, \
}; \
@@ -654,10 +659,33 @@
} \
}

+/* Contains all the information about a fixture. */
+struct __fixture_metadata {
+ const char *name;
+ struct __fixture_metadata *prev, *next;
+} _fixture_global __attribute__((unused)) = {
+ .name = "global",
+ .prev = &_fixture_global,
+};
+
+static struct __fixture_metadata *__fixture_list = &_fixture_global;
+static unsigned int __fixture_count;
+static int __constructor_order;
+
+#define _CONSTRUCTOR_ORDER_FORWARD 1
+#define _CONSTRUCTOR_ORDER_BACKWARD -1
+
+static inline void __register_fixture(struct __fixture_metadata *f)
+{
+ __fixture_count++;
+ __LIST_APPEND(__fixture_list, f);
+}
+
/* Contains all the information for test execution and status checking. */
struct __test_metadata {
const char *name;
void (*fn)(struct __test_metadata *);
+ struct __fixture_metadata *fixture;
int termsig;
int passed;
int trigger; /* extra handler after the evaluation */
@@ -670,11 +698,6 @@ struct __test_metadata {
/* Storage for the (global) tests to be run. */
static struct __test_metadata *__test_list;
static unsigned int __test_count;
-static unsigned int __fixture_count;
-static int __constructor_order;
-
-#define _CONSTRUCTOR_ORDER_FORWARD 1
-#define _CONSTRUCTOR_ORDER_BACKWARD -1

/*
* Since constructors are called in reverse order, reverse the test
@@ -701,14 +724,15 @@ static inline int __bail(int for_realz, bool no_print, __u8 step)
return 0;
}

-void __run_test(struct __test_metadata *t)
+void __run_test(struct __fixture_metadata *f,
+ struct __test_metadata *t)
{
pid_t child_pid;
int status;

t->passed = 1;
t->trigger = 0;
- printf("[ RUN ] %s\n", t->name);
+ printf("[ RUN ] %s.%s\n", f->name, t->name);
alarm(t->timeout);
child_pid = fork();
if (child_pid < 0) {
@@ -757,7 +781,8 @@ void __run_test(struct __test_metadata *t)
status);
}
}
- printf("[ %4s ] %s\n", (t->passed ? "OK" : "FAIL"), t->name);
+ printf("[ %4s ] %s.%s\n", (t->passed ? "OK" : "FAIL"),
+ f->name, t->name);
alarm(0);
}

@@ -774,7 +799,7 @@ static int test_harness_run(int __attribute__((unused)) argc,
__test_count, __fixture_count + 1);
for (t = __test_list; t; t = t->next) {
count++;
- __run_test(t);
+ __run_test(t->fixture, t);
if (t->passed)
pass_count++;
else
--
2.25.1