added tests for backends

backends/postgres/test/Connection.hpp.in

@@ -0,0 +1,10 @@
+#ifndef POSTGRES_CONNECTION_HPP
+#define POSTGRES_CONNECTION_HPP
+
+#define MATADOR_DB_TYPE "Postgres"
+
+namespace matador::test::connection {
+ const char* const dns = "@POSTGRES_CONNECTION_STRING@";
+}
+
+#endif /*POSTGRES_CONNECTION_HPP*/