tests: Fix test for printing NULL on FreeBSD

diff --git a/src/libstrongswan/tests/suites/test_printf.c b/src/libstrongswan/tests/suites/test_printf.c
index 7d38c60df9d6c82b5d341d21fc596d69e82aba8c..9e40d1fc076c538aa21d7471ac88bbb6398f3721 100644 (file)
--- a/src/libstrongswan/tests/suites/test_printf.c
+++ b/src/libstrongswan/tests/suites/test_printf.c
@@ -43,13 +43,23 @@ static void verify(char *expected, char *format, ...)
 #endif /* HAVE_FMEMOPEN */
 }
 
+START_TEST(test_printf_null)
+{
+       char buf[16];
+
+       /* on FreeBSD "(null)" gets printed even when a precision of 0 is used.
+        * because printing of "(null)" for NULL is not standardized we don't verify
+        * the output and just make sure there is no crash */
+       snprintf(buf, sizeof(buf), "%s", NULL);
+}
+END_TEST
+
 START_TEST(test_printf_strings)
 {
        verify("a bc def", "%s %s %s", "a", "bc", "def");
+       verify("", "%.0s", "asdfg");
        verify("asd", "%.3s", "asdfg");
        verify("asdf", "%.*s", (int)4, "asdfg");
-       verify("", "%.0s", NULL);
-       verify("", "%.*s", (int)0, NULL);
        verify("  asdf", "%6s", "asdf");
        verify("  asdf", "%+6s", "asdf");
        verify("asdf  ", "%-6s", "asdf");
@@ -186,6 +196,7 @@ Suite *printf_suite_create()
        s = suite_create("printf");
 
        tc = tcase_create("strings");
+       tcase_add_test(tc, test_printf_null);
        tcase_add_test(tc, test_printf_strings);
        suite_add_tcase(s, tc);