tests: support -h/--help for the tests

Including listing the tests available in that binary

diff --git a/tests/weston-test-runner.c b/tests/weston-test-runner.c
index 7cc1cbe..fefb93b 100644 (file)
--- a/tests/weston-test-runner.c
+++ b/tests/weston-test-runner.c
@@ -53,6 +53,16 @@ run_test(const struct weston_test *t)
        exit(EXIT_SUCCESS);
 }
 
+static void
+list_tests(void)
+{
+       const struct weston_test *t;
+
+       fprintf(stderr, "Available test names:\n");
+       for (t = &__start_test_section; t < &__stop_test_section; t++)
+               fprintf(stderr, "       %s\n", t->name);
+}
+
 int main(int argc, char *argv[])
 {
        const struct weston_test *t;
@@ -61,6 +71,14 @@ int main(int argc, char *argv[])
        siginfo_t info;
 
        if (argc == 2) {
+               const char *testname = argv[1];
+               if (strcmp(testname, "--help") == 0 ||
+                   strcmp(testname, "-h") == 0) {
+                       fprintf(stderr, "Usage: %s [test-name]\n", program_invocation_short_name);
+                       list_tests();
+                       exit(EXIT_SUCCESS);
+               }
+
                t = find_test(argv[1]);
                if (t == NULL) {
                        fprintf(stderr, "unknown test: \"%s\"\n", argv[1]);