ADD: Adds files for initial build of the library.

tests/test_test.cpp

@@ -0,0 +1,40 @@
+/*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at https://mozilla.org/MPL/2.0/.
+*/
+
+/**
+* @file
+* @copyright 2022 MPLv2
+*/
+
+/**
+* @defgroup tests
+*/
+
+
+#define CATCH_CONFIG_MAIN
+
+#include <catch2/catch.hpp>
+
+/**
+* @brief brief test description
+* @ingroup group
+*/
+SCENARIO("A test scenario","[keywords]")
+{
+  GIVEN("Preliminaries")
+  {
+    int i = 40;
+    WHEN("doing something")
+    {
+      i = i + 2;
+
+      THEN("expecting something to happen")
+      {
+        REQUIRE(i == 42 );
+      } // THEN
+    } // WHEN
+  } // GIVEN
+} // SCENARIO