start adding tests

test/test_main.cpp

@@ -1,2 +1,22 @@
-#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#define DOCTEST_CONFIG_IMPLEMENT
 #include <doctest/doctest.h>
+
+#include <Common.h>
+
+int main(int argc, char** argv) {
+    doctest::Context context;
+
+    Application::InitializeConsole();
+
+    context.applyCommandLine(argc, argv);
+
+    int res = context.run(); // run
+
+    if (context.shouldExit()) // important - query flags (and --exit) rely on the user doing this
+        return res; // propagate the result of the tests
+
+    int client_stuff_return_code = 0;
+    // your program - if the testing framework is integrated in your production code
+
+    return res + client_stuff_return_code; // the result from doctest is propagated here as well
+}