unit-tests: Separate test runner to a library, reusable by other tests

Other users may make use of the noinst libtest.la helper library to implement
unit tests. For libstrongswan, tests.[ch] provide the configuration for test
runner to perform unit tests in a simple manner.

src/libstrongswan/tests/tests.c

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include <test_runner.h>
+
+/* declare test suite constructors */
+#define TEST_SUITE(x) test_suite_t* x();
+#define TEST_SUITE_DEPEND(x, ...) TEST_SUITE(x)
+#include "tests.h"
+#undef TEST_SUITE
+#undef TEST_SUITE_DEPEND
+
+static test_configuration_t tests[] = {
+#define TEST_SUITE(x) \
+	{ .suite = x, },
+#define TEST_SUITE_DEPEND(x, type, args) \
+	{ .suite = x, .feature = PLUGIN_DEPENDS(type, args) },
+#include "tests.h"
+	{ .suite = NULL, }
+};
+
+static char *plugindirs[] = {
+	PLUGINDIR,
+	NULL,
+};
+
+int main(int argc, char *argv[])
+{
+	return test_runner_run(tests, plugindirs, PLUGINS);
+}