Function TestReflectMapper

internal/reflectx/reflect_test.go:27–401

(t *testing.T)

}

func TestReflectMapper(t *testing.T) {
	t.Run("TopLevelField", func(t *testing.T) {
		type A struct {
			F0 int
			F1 int
			F2 int
		}

		f := A{1, 2, 3}
		fv := reflect.ValueOf(f)

		m := NewMapperFunc("", func(s string) string { return s })

		{
			v := m.FieldByName(fv, "F0")
			assert.Equal(t, f.F0, v.Interface().(int))
		}

		{
			v := m.FieldByName(fv, "F2")
			assert.Equal(t, f.F2, v.Interface().(int))
		}
	})

	t.Run("NestedFields", func(t *testing.T) {
		type A struct {
			F0 int
			F1 int
			F2 int
		}

		type B struct {
			A // nested

			F3 int
			F4 int
		}

		type C struct {
			F5 int

			B `db:"B"`
		}

		c := C{1, B{A{2, 3, 4}, 5, 6}}
		cv := reflect.ValueOf(c)

		m := NewMapperFunc("db", func(s string) string { return s })

		assert.Equal(t, 1, m.FieldByName(cv, "F5").Interface().(int))
		assert.Equal(t, 2, m.FieldByName(cv, "B.F0").Interface().(int))
		assert.Equal(t, 3, m.FieldByName(cv, "B.F1").Interface().(int))
		assert.Equal(t, 4, m.FieldByName(cv, "B.F2").Interface().(int))
		assert.Equal(t, 5, m.FieldByName(cv, "B.F3").Interface().(int))
		assert.Equal(t, 6, m.FieldByName(cv, "B.F4").Interface().(int))

		assert.False(t, m.FieldByName(cv, "D").IsValid())