column, placeholder and column_value generator progress

test/orm/query/GeneratorTests.cpp

@@ -0,0 +1,51 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include "matador/query/generator.hpp"
+
+#include "matador/sql/column.hpp"
+
+#include "../../models/airplane.hpp"
+#include "../../models/flight.hpp"
+
+using namespace matador::utils;
+using namespace matador::query;
+using namespace matador::sql;
+using namespace matador::test;
+
+TEST_CASE("Test placeholder generator", "[generator][placeholder]") {
+  REQUIRE(generator::placeholders<airplane>() == std::vector{_, _, _});
+}
+
+TEST_CASE("Test column value generator", "[generator][column_value]") {
+  SECTION("Test column value generator for simple table") {
+    const airplane a380{1, "Airbus", "A380"};
+    const auto pairs = generator::column_value_pairs(a380);
+    const std::vector<internal::column_value_pair> expected_result{
+   { "id", 1U },
+    { "brand", std::string{"Airbus"} },
+   { "model", std::string{"A380"} }
+    };
+    REQUIRE(pairs.size() == 3);
+    REQUIRE(pairs == expected_result);
+  }
+
+  SECTION("Test column value generator for table with foreign key") {
+
+  }
+}
+
+TEST_CASE("Test column generator", "[generator][column]") {
+    SECTION("Test column generator for simple table") {
+        const std::vector expected_columns {
+            column("id"),
+            column("brand"),
+            column("model"),
+        };
+        const auto result = generator::columns<airplane>();
+        REQUIRE(result.size() == expected_columns.size());
+        auto it = result.begin();
+        for (const auto& c : expected_columns) {
+            REQUIRE(c.equals( *it++));
+        }
+    }
+}