added field class

test/CMakeLists.txt

@@ -38,7 +38,8 @@ add_executable(tests
   DummyConnection.cpp
   EntityQueryBuilderTest.cpp
   models/author.hpp
-  models/book.hpp)
+  models/book.hpp
+  FieldTest.cpp)
 
 target_link_libraries(tests PRIVATE
   Catch2::Catch2WithMain

test/FieldTest.cpp

@@ -0,0 +1,38 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include "matador/sql/field.hpp"
+
+using namespace matador::sql;
+
+TEST_CASE("Field test", "[field]") {
+  field f("name");
+
+  REQUIRE(f.name() == "name");
+  REQUIRE(f.is_null());
+  REQUIRE(!f.is_integer());
+  REQUIRE(!f.is_floating_point());
+  REQUIRE(!f.is_blob());
+  REQUIRE(!f.is_bool());
+  REQUIRE(!f.is_string());
+
+  f = 7UL;
+  REQUIRE(!f.is_null());
+  REQUIRE(f.is_integer());
+  REQUIRE(!f.is_floating_point());
+  REQUIRE(!f.is_blob());
+  REQUIRE(!f.is_bool());
+  REQUIRE(!f.is_string());
+
+  auto int_val = f.as<int>();
+  REQUIRE(int_val.has_value());
+  REQUIRE(int_val.value() == 7);
+  auto float_val = f.as<float>();
+  REQUIRE(float_val.has_value());
+  REQUIRE(float_val.value() == 7.0);
+  auto str_val = f.as<std::string>();
+  REQUIRE(str_val.has_value());
+  REQUIRE(str_val.value() == "7");
+  auto bool_val = f.as<bool>();
+  REQUIRE(bool_val.has_value());
+  REQUIRE(bool_val.value());
+}