added test and stub

unittests/param_test.cpp

@@ -0,0 +1,34 @@
+#include <systemlib/visibility.h>
+#include <systemlib/param/param.h>
+
+#include "gtest/gtest.h"
+
+//#PARAM_DEFINE_INT32(TEST_A, 5);
+
+struct param_info_s test = {
+	"test",
+	PARAM_TYPE_INT32,
+	.val.i = 2
+};
+
+
+
+extern param_info_s *__param_start, *__param_end;
+const struct param_info_s	*ib = __param_start;
+const struct param_info_s	*il = __param_end;
+
+TEST(ParamTest, ResetAll) {
+	printf("diff: %i\n", (unsigned)(il - ib));
+	printf("start: %i\n", __param_start);
+	printf("end: %i\n", __param_end);
+	
+	param_t testparam = param_find("test");
+	ASSERT_NE(PARAM_INVALID, testparam) << "param_find failed";
+
+	int32_t value;
+	int result = param_get(testparam, &value);
+	ASSERT_EQ(0, result) << "param_get failed";
+	ASSERT_EQ(2, value) << "wrong param value";
+
+	ASSERT_TRUE(false) << "fail";
+}