}
    assert jsonable_encoder(model, include={"foo"}) == {"foo": "foo"}
    assert jsonable_encoder(model, exclude={"bla"}) == {"foo": "foo", "bar": "bar"}
    assert jsonable_encoder(model, include={}) == {}
    assert jsonable_encoder(model, exclude={}) == {
        "foo": "foo",
        "bar": "bar",
        "bla": "bla",
    }


def test_custom_encoders():
    class safe_datetime(datetime):
        pass

package dns

import "testing"

func TestDNSJoin(t *testing.T) {
	tests := []struct {
		in  []string
		out string
	}{
		{[]string{"bla", "bliep", "example", "org"}, "bla.bliep.example.org."},
		{[]string{"example", "."}, "example."},
		{[]string{"example", "org."}, "example.org."}, // technically we should not be called like this.
		{[]string{"."}, "."},
	}