Add tests

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 15 insertions, 0 deletions

diff --git a/memrchr.c b/memrchr.c
index 6beec6d..454ad4c 100644
--- a/memrchr.c
+++ b/memrchr.c
@@ -10,3 +10,18 @@ libsimple_memrchr(const void *s_, int c, size_t n_)
 	while (n-- && (int)s[n] != c);
 	return n < 0 ? NULL : &s[n];
 }
+
+
+#ifdef TEST
+#include <assert.h>
+
+int
+main(void)
+{
+	assert(!strcmp(libsimple_memrchr("1234512345", '3', sizeof("1234512345") - 1), "345"));
+	assert(!strcmp(libsimple_memrchr("1234512345", '5', sizeof("1234512345") - 1), "5"));
+	assert(!libsimple_memrchr("1234512345", 'x', sizeof("1234512345") - 1));
+	return 0;
+}
+
+#endif