hmac: Added a unit test for the HMAC hash generation

Closes #4973

2 files changed, 69 insertions, 1 deletions

diff --git a/tests/unit/Makefile.inc b/tests/unit/Makefile.inc
index b8da0c20c..4fe80d5db 100644
--- a/tests/unit/Makefile.inc
+++ b/tests/unit/Makefile.inc
@@ -32,7 +32,7 @@ UNITPROGS = unit1300 unit1301 unit1302 unit1303 unit1304 unit1305 unit1307 \
  unit1330 unit1394 unit1395 unit1396 unit1397 unit1398 \
  unit1399 \
  unit1600 unit1601 unit1602 unit1603 unit1604 unit1605 unit1606 unit1607 \
- unit1608 unit1609 unit1610 unit1611 \
+ unit1608 unit1609 unit1610 unit1611 unit1612 \
  unit1620 unit1621 \
  unit1650 unit1651 unit1652 unit1653 unit1654 unit1655
 
@@ -126,6 +126,9 @@ unit1610_CPPFLAGS = $(AM_CPPFLAGS)
 unit1611_SOURCES = unit1611.c $(UNITFILES)
 unit1611_CPPFLAGS = $(AM_CPPFLAGS)
 
+unit1612_SOURCES = unit1611.c $(UNITFILES)
+unit1612_CPPFLAGS = $(AM_CPPFLAGS)
+
 unit1620_SOURCES = unit1620.c $(UNITFILES)
 unit1620_CPPFLAGS = $(AM_CPPFLAGS)
 
diff --git a/tests/unit/unit1612.c b/tests/unit/unit1612.c
new file mode 100644
index 000000000..be45397fb
--- /dev/null
+++ b/tests/unit/unit1612.c
@@ -0,0 +1,65 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "curlcheck.h"
+
+#include "curl_hmac.h"
+
+static CURLcode unit_setup(void)
+{
+  return CURLE_OK;
+}
+
+static void unit_stop(void)
+{
+
+}
+
+UNITTEST_START
+
+#ifndef CURL_DISABLE_CRYPTO_AUTH
+  const char password[] = "Pa55worD";
+  const char string1[] = "1";
+  const char string2[] = "hello-you-fool";
+  unsigned char output[HMAC_MD5_LENGTH];
+  unsigned char *testp = output;
+
+  Curl_hmacit(Curl_HMAC_MD5,
+              (const unsigned char *) password, strlen(password),
+              (const unsigned char *) string1, strlen(string1)
+              output);
+
+  verify_memory(testp,
+                "\xd1\x29\x75\x43\x58\xdc\xab\x78\xdf\xcd\x7f\x2b\x29\x31\x13"
+                "\x37", HMAC_MD5_LENGTH);
+
+  Curl_hmacit(Curl_HMAC_MD5,
+              (const unsigned char *) password, strlen(password),
+              (const unsigned char *) string2, strlen(string2),
+              output);
+
+  verify_memory(testp,
+                "\x75\xf1\xa7\xb9\xf5\x40\xe5\xa4\x98\x83\x9f\x64\x5a\x27\x6d"
+                "\xd0", HMAC_MD5_LENGTH);
+#endif
+
+
+UNITTEST_STOP