test/testutil.c test registry functions.

These help standardize the structure of main() and result reporting.

Reviewed-by: Tim Hudson <tjh@openssl.org>

.gitignore

@@ -29,6 +29,7 @@
 !/test/igetest.c
 !/test/r160test.c
 !/test/fips_algvs.c
+!/test/testutil.c
 
 /test/*.ss
 /test/*.srl

test/testutil.c

@@ -0,0 +1,107 @@
+/* test/testutil.c */
+/*
+ * Utilities for writing OpenSSL unit tests.
+ *
+ * More information:
+ * http://wiki.openssl.org/index.php/How_To_Write_Unit_Tests_For_OpenSSL
+ *
+ * Author: Mike Bland (mbland@acm.org)
+ * Date:   2014-07-15
+ * ====================================================================
+ * Copyright (c) 2014 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include "testutil.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/* Declares the structures needed to register each test case function.
+ */
+typedef struct test_info
+	{
+	const char* test_case_name;
+	int (*test_fn)();
+	} TEST_INFO;
+
+static TEST_INFO all_tests[1024];
+static int num_tests = 0;
+
+void add_test(const char* test_case_name, int (*test_fn)())
+	{
+	all_tests[num_tests].test_case_name = test_case_name;
+	all_tests[num_tests].test_fn = test_fn;
+	++num_tests;
+	}
+
+int run_tests(const char* test_prog_name)
+	{
+	int num_failed = 0;
+	int i = 0;
+
+	printf("%s: %d test case%s\n", test_prog_name, num_tests,
+		num_tests == 1 ? "" : "s");
+	for (i = 0; i != num_tests; ++i)
+		{
+		if (all_tests[i].test_fn())
+			{
+			printf("** %s failed **\n--------\n",
+				all_tests[i].test_case_name);
+			++num_failed;
+			}
+		}
+
+	if (num_failed != 0)
+		{
+		printf("%s: %d test%s failed (out of %d)\n", test_prog_name,
+			num_failed, num_failed != 1 ? "s" : "", num_tests);
+		return EXIT_FAILURE;
+		}
+	printf("  All tests passed.\n");
+	return EXIT_SUCCESS;
+	}

test/testutil.h

@@ -113,4 +113,12 @@
 #define TEST_CASE_NAME __func__
 #endif /* __STDC_VERSION__ */
 
+/* In main(), call ADD_TEST to register each test case function, then call
+ * run_tests() to execute all tests and report the results. The result
+ * returned from run_tests() should be used as the return value for main().
+ */
+#define ADD_TEST(test_function) add_test(#test_function, test_function)
+void add_test(const char* test_case_name, int (*test_fn)());
+int run_tests(const char* test_prog_name);
+
 #endif /* HEADER_TESTUTIL_H */