def test_foreign_key_relation(query, user, group):
    result = query("{ users { name group { name } } }")
    assert not result.errors
    assert result.data["users"] == [
        {
            "name": "user",
            "group": {
                "name": "group",
            },
        },
    ]


def test_foreign_key_relation_reversed(query, user, group):
    result = query("{ groups { name users { name } } }")
    assert not result.errors
    assert result.data["groups"] == [
        {
            "name": "group",
            "users": [
                {
                    "name": "user",
                },
            ],
        },
    ]


def test_one_to_one_relation(query, user, tag):
    result = query("{ users { name tag { name } } }")
    assert not result.errors
    assert result.data["users"] == [
        {
            "name": "user",
            "tag": {
                "name": "tag",
            },
        },
    ]


def test_one_to_one_relation_reversed(query, user, tag):
    result = query("{ tags { name user { name } } }")
    assert not result.errors
    assert result.data["tags"] == [
        {
            "name": "tag",
            "user": {
                "name": "user",
            },
        },
    ]


def test_many_to_many_relation(query, group, tag):
    result = query("{ groups { name tags { name } } }")
    assert not result.errors
    assert result.data["groups"] == [
        {
            "name": "group",
            "tags": [
                {
                    "name": "tag",
                },
            ],
        },
    ]


def test_many_to_many_relation_reversed(query, group):
    result = query("{ tags { name groups { name } } }")
    assert not result.errors
    assert result.data["tags"] == [
        {
            "name": "tag",
            "groups": [
                {
                    "name": "group",
                },
            ],
        },
    ]