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import strawberry
def test_defining_interface():
@strawberry.interface
class Node:
id: strawberry.ID
definition = Node.__strawberry_definition__
assert definition.name == "Node"
assert len(definition.fields) == 1
assert definition.fields[0].python_name == "id"
assert definition.fields[0].graphql_name is None
assert definition.fields[0].type == strawberry.ID
assert definition.is_interface
def test_implementing_interfaces():
@strawberry.interface
class Node:
id: strawberry.ID
@strawberry.type
class User(Node):
name: str
definition = User.__strawberry_definition__
assert definition.name == "User"
assert len(definition.fields) == 2
assert definition.fields[0].python_name == "id"
assert definition.fields[0].graphql_name is None
assert definition.fields[0].type == strawberry.ID
assert definition.fields[1].python_name == "name"
assert definition.fields[1].graphql_name is None
assert definition.fields[1].type is str
assert definition.is_interface is False
assert definition.interfaces == [Node.__strawberry_definition__]
def test_implementing_interface_twice():
@strawberry.interface
class Node:
id: strawberry.ID
@strawberry.type
class User(Node):
name: str
@strawberry.type
class Person(Node):
name: str
definition = User.__strawberry_definition__
assert definition.name == "User"
assert len(definition.fields) == 2
assert definition.fields[0].python_name == "id"
assert definition.fields[0].graphql_name is None
assert definition.fields[0].type == strawberry.ID
assert definition.fields[1].python_name == "name"
assert definition.fields[1].graphql_name is None
assert definition.fields[1].type is str
assert definition.is_interface is False
assert definition.interfaces == [Node.__strawberry_definition__]
definition = Person.__strawberry_definition__
assert definition.name == "Person"
assert len(definition.fields) == 2
assert definition.fields[0].python_name == "id"
assert definition.fields[0].graphql_name is None
assert definition.fields[0].type == strawberry.ID
assert definition.fields[1].python_name == "name"
assert definition.fields[1].graphql_name is None
assert definition.fields[1].type is str
assert definition.is_interface is False
assert definition.interfaces == [Node.__strawberry_definition__]
def test_interfaces_can_implement_other_interfaces():
@strawberry.interface
class Node:
id: strawberry.ID
@strawberry.interface
class UserNodeInterface(Node):
id: strawberry.ID
name: str
@strawberry.type
class Person(UserNodeInterface):
id: strawberry.ID
name: str
assert UserNodeInterface.__strawberry_definition__.is_interface is True
assert UserNodeInterface.__strawberry_definition__.interfaces == [
Node.__strawberry_definition__
]
definition = Person.__strawberry_definition__
assert definition.is_interface is False
assert definition.interfaces == [
UserNodeInterface.__strawberry_definition__,
Node.__strawberry_definition__,
]
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