1 files changed, 11 insertions, 2 deletions
diff --git a/tests/main.c b/tests/main.c
index 7b791cd..ff68df3 100644
--- a/tests/main.c
+++ b/tests/main.c
@@ -2,6 +2,8 @@
 
 #include <stdarg.h>
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 
 static bool any_failure = false;
 
@@ -15,12 +17,19 @@ void test_fail(const char *fmt, ...) {
 	fprintf(stderr, "\n");
 }
 
-int main(void) {
-	const char *test_dir = "../tests";
+int main(int argc, char **argv) {
+	if (argc > 2 || (argc == 2 && strcmp(argv[1], "--help") == 0)) {
+		printf("usage: tests [TEST DIRECTORY]\n");
+		return EXIT_FAILURE;
+	}
+	const char *test_dir = argc == 2 ? argv[1] : "../tests";
 	test_parsing(test_dir);
+	test_errors(test_dir);
 	if (any_failure) {
 		fprintf(stderr, "\x1b[1m\x1b[91mSome tests failed.\x1b[0m\n");
+		return EXIT_FAILURE;
 	} else {
 		printf("\x1b[1m\x1b[92mAll tests OK\x1b[0m\n");
+		return 0;
 	}
 }