added more tests

test/models/supplier.hpp

@@ -0,0 +1,24 @@
+#ifndef QUERY_SUPPLIER_HPP
+#define QUERY_SUPPLIER_HPP
+
+#include "matador/utils/access.hpp"
+
+#include <string>
+
+namespace matador::test {
+
+struct supplier {
+    unsigned int id{};
+    std::string name;
+
+    template<class Operator>
+    void process(Operator &op) {
+        namespace field = matador::access;
+        using namespace matador::utils;
+        field::primary_key(op, "id", id);
+        field::attribute(op, "name", name, 255);
+    }
+};
+
+}
+#endif //QUERY_SUPPLIER_HPP