Added test drivers.

[pdclib] / functions / string / strxfrm.c

diff --git a/functions/string/strxfrm.c b/functions/string/strxfrm.c
index 5849a0cb80ea52a44883c0ed1d7837125f97340a..650cfbf2ed3c48fccbbc84945e64e5a7d72a56a7 100644 (file)
--- a/functions/string/strxfrm.c
+++ b/functions/string/strxfrm.c
@@ -26,4 +26,24 @@ size_t strxfrm( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, si
     return len;
 }
 
-#warning Test driver missing.
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    char s[] = "xxxxxxxxxxx";
+    BEGIN_TESTS;
+    TESTCASE( strxfrm( NULL, "123456789012", 0 ) == 12 );
+    TESTCASE( strxfrm( s, "123456789012", 12 ) == 12 );
+    /*
+    The following test case is true in *this* implementation, but doesn't have to.
+    TESTCASE( s[0] == 'x' );
+    */
+    TESTCASE( strxfrm( s, "1234567890", 11 ) == 10 );
+    TESTCASE( s[0] == '1' );
+    TESTCASE( s[9] == '0' );
+    TESTCASE( s[10] == '\0' );
+    return TEST_RESULTS;
+}
+#endif
+