--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test.c	Wed Dec 03 03:04:39 2025 -0500
@@ -0,0 +1,40 @@
+#include "printf.h"
+
+#include <locale.h>
+#include <stdlib.h> /* malloc */
+#include <limits.h>
+#include <stdint.h>
+#include <float.h>
+
+int test_fprintf(void);
+int test_asprintf(void);
+int test_snprintf(void);
+
+int main(void)
+{
+	/* :p */
+	setlocale(LC_ALL, "C.UTF-8");
+
+	if (test_asprintf() != 0) {
+		fprintf(stderr, "asprintf test failed!\n");
+		return 1;
+	}
+
+	if (test_snprintf() != 0) {
+		fprintf(stderr, "snprintf test failed!\n");
+		return 1;
+	}
+
+	if (test_fprintf() != 0) {
+		fprintf(stderr, "fprintf test failed!\n");
+		return 1;
+	}
+
+	/* print this too... */
+	my_printf(
+#include "test.h"
+		);
+
+	printf("All tests succeeded.\n");
+	return 0;
+}
\ No newline at end of file