Add regression test suite.

test/test_authenticate.c

@@ -0,0 +1,29 @@
+#include "test.h"
+
+#include <err.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <nfc/nfc.h>
+
+#include "mifare_classic.h"
+
+DEFINE_TEST(authenticate)
+{
+    int res;
+    MifareClassicTag tag;
+
+    do {
+	res = mifare_classic_test_setup (&tag);
+	assertEqualInt (res, 0);
+
+	MifareClassicKey k = { 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5 };
+	res = mifare_classic_authenticate (tag, 0x00, k, MFC_KEY_A);
+	assertEqualInt (res, 0);
+
+    } while (0);
+
+    mifare_classic_test_teardown (tag);
+}
+