One more test

configure.ac

@@ -14,6 +14,7 @@ AC_SUBST(ISODATE)
 
 LX_CFLAGS=${CFLAGS-NONE}
 AC_PROG_CC_C99
+AM_PROG_CC_C_O
 AC_USE_SYSTEM_EXTENSIONS
 CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
 

test/Makefile.am

@@ -1,10 +1,11 @@
 
 AM_CPPFLAGS = \
-	-I. \
-	-I$(top_srcdir)/src/libsodium/include
+	-I$(top_srcdir)/src/libsodium/include \
+	-I$(top_srcdir)/src/libsodium/include/sodium
 
 TESTS_TARGETS = \
-	test-randombytes
+	test-randombytes \
+	auth
 
 check_PROGRAMS = $(TESTS_TARGETS)
 
@@ -15,4 +16,7 @@ TESTS_LDADD = $(top_srcdir)/src/libsodium/libsodium.la
 test_randombytes_SOURCES  = test-randombytes.c
 test_randombytes_LDADD    = $(TESTS_LDADD)
 
+auth_SOURCES              = auth.c cmptest.h
+auth_LDADD                = $(TESTS_LDADD)
+
 verify: check

test/auth.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "crypto_auth_hmacsha512256.h"
+
+#define TEST_NAME "auth"
+#include "cmptest.h"
+
+/* "Test Case 2" from RFC 4231 */
+unsigned char key[32] = "Jefe";
+unsigned char c[28] = "what do ya want for nothing?";
+
+unsigned char a[32];
+
+main()
+{
+  int i;
+  crypto_auth_hmacsha512256(a,c,sizeof c,key);
+  for (i = 0;i < 32;++i) {
+    printf(",0x%02x",(unsigned int) a[i]);
+    if (i % 8 == 7) printf("\n");
+  }
+  return 0;
+}

test/auth.out

@@ -0,0 +1,4 @@
+,0x16,0x4b,0x7a,0x7b,0xfc,0xf8,0x19,0xe2
+,0xe3,0x95,0xfb,0xe7,0x3b,0x56,0xe0,0xa3
+,0x87,0xbd,0x64,0x22,0x2e,0x83,0x1f,0xd6
+,0x10,0x27,0x0c,0xd7,0xea,0x25,0x05,0x54

test/cmptest.h

@@ -0,0 +1,40 @@
+
+#ifndef __CMPTEST_H__
+#define __CMPTEST_H__
+
+#include <stdio.h>
+
+#define TEST_NAME_RES TEST_NAME ".res"
+#define TEST_NAME_OUT TEST_NAME ".out"
+
+FILE *fp_res;
+int   xmain(void);
+
+int main(void)
+{
+    FILE *fp_out;
+    int   c;
+
+    if ((fp_res = fopen(TEST_NAME_RES, "w+")) == NULL) {
+        perror("fopen(" TEST_NAME_RES ")");
+        return 99;
+    }
+    xmain();
+    rewind(fp_res);
+    if ((fp_out = fopen(TEST_NAME_OUT, "r")) == NULL) {
+        perror("fopen(" TEST_NAME_OUT ")");        
+        return 99;
+    }
+    do {
+        if ((c = fgetc(fp_res)) != fgetc(fp_out)) {
+            return 99;
+        }
+    } while (c != EOF);
+
+    return 0;
+}
+
+#define printf(...) fprintf(fp_res, __VA_ARGS__)
+#define main xmain
+
+#endif