Add tests

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

1 files changed, 31 insertions, 0 deletions

diff --git a/memmem.c b/memmem.c
index c7e331a..0046e19 100644
--- a/memmem.c
+++ b/memmem.c
@@ -21,3 +21,34 @@ libsimple_memmem(const void *hay_, size_t hayn, const void *sub_, size_t subn)
 
 	return NULL;
 }
+
+
+#ifdef TEST
+#include <assert.h>
+
+int
+main(void)
+{
+	assert(!strcmp(libsimple_memmem("test", 4, "test", 4), "test"));
+	assert(!strcmp(libsimple_memmem("", 0, "", 0), ""));
+	assert(!strcmp(libsimple_memmem("test", 4, "", 0), "test"));
+	assert(!libsimple_memmem("", 0, "test", 4));
+	assert(!libsimple_memmem("t", 1, "test", 4));
+	assert(!strcmp(libsimple_memmem("test", 4, "t", 1), "test"));
+	assert(!strcmp(libsimple_memmem("test", 4, "e", 1), "est"));
+	assert(!strcmp(libsimple_memmem("test", 4, "s", 1), "st"));
+	assert(!libsimple_memmem("test", 4, "x", 1));
+	assert(!strcmp(libsimple_memmem("test", 4, "te", 2), "test"));
+	assert(!strcmp(libsimple_memmem("test", 4, "es", 2), "est"));
+	assert(!strcmp(libsimple_memmem("test", 4, "st", 2), "st"));
+	assert(!strcmp(libsimple_memmem("test", 5, "t", 2), "t"));
+	assert(!libsimple_memmem("test", 4, "xx", 2));
+	assert(!strcmp(libsimple_memmem("abc", 3, "c", 1), "c"));
+	assert(!strcmp(libsimple_memmem("abc", 3, "bc", 2), "bc"));
+	assert(!strcmp(libsimple_memmem("abc", 3, "abc", 3), "abc"));
+	assert(!libsimple_memmem("abc", 3, "abc", 4));
+	assert(!strcmp(libsimple_memmem("abcabc", 6, "bc", 2), "bcabc"));
+	return 0;
+}
+
+#endif