add tests form crypt class @TODO: add assertion on length

+#include <mcrypt.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include "runtest.h"
+#include "token/cclass.h"
+#include "token/crypt.h"
+
+
+#define DATA        "testdata to be encrypted"
+#define PASSWORD    "1234"
+
+
+const char testname[] = "cryptTest";
+struct CRYPT * crypt  = NULL;
+
+
+static
+void
+__setUp()
+{
+    crypt = new(CRYPT, MCRYPT_RIJNDAEL_256, MCRYPT_CFB);
+}
+void (* const setUp)() = __setUp;
+
+static
+void
+__tearDown()
+{
+    delete(&crypt);
+}
+void (* const tearDown)() = __tearDown;
+
+static
+int
+testEncryptDecryptCycle()
+{
+    size_t length = strlen(DATA);;
+    void * encrypted = crypt_encrypt(crypt, DATA, PASSWORD, &length);
+    void * decrypted = crypt_decrypt(crypt, encrypted, PASSWORD, &length);
+
+    ASSERT_NOT_NULL(encrypted);
+    ASSERT_NOT_NULL(decrypted);
+    ASSERT_MEM_EQUAL(DATA, decrypted, length);
+
+    free(encrypted);
+    free(decrypted);
+
+    return TEST_OK;
+}
+
+static
+int
+testCryptDifference()
+{
+    size_t length1, length2;
+    void * encrypted1, * encrypted2;
+
+    length1 = length2 = strlen(DATA);
+
+    encrypted1 = crypt_encrypt(crypt, DATA, PASSWORD, &length1);
+    encrypted2 = crypt_encrypt(crypt, DATA, PASSWORD, &length2);
+
+    ASSERT_EQUAL(length1, length2);
+    ASSERT_NOT_NULL(encrypted1);
+    ASSERT_NOT_NULL(encrypted2);
+    ASSERT_MEM_NOT_EQUAL(encrypted1, encrypted2, length1);
+
+    free(encrypted1);
+    free(encrypted2);
+
+    return TEST_OK;
+}
+
+const testfunc tests[] = {
+    testEncryptDecryptCycle,
+    testCryptDifference
+};
+const size_t count = FUNCS_COUNT(tests);
+
+// vim: set et ts=4 sw=4: