| from ...types import ObjectType, Schema, String, NonNull | |
| class Query(ObjectType): | |
| hello = String(input=NonNull(String)) | |
| def resolve_hello(self, info, input): | |
| if input == "nothing": | |
| return None | |
| return f"Hello {input}!" | |
| schema = Schema(query=Query) | |
| def test_required_input_provided(): | |
| """ | |
| Test that a required argument works when provided. | |
| """ | |
| input_value = "Potato" | |
| result = schema.execute('{ hello(input: "%s") }' % input_value) | |
| assert not result.errors | |
| assert result.data == {"hello": "Hello Potato!"} | |
| def test_required_input_missing(): | |
| """ | |
| Test that a required argument raised an error if not provided. | |
| """ | |
| result = schema.execute("{ hello }") | |
| assert result.errors | |
| assert len(result.errors) == 1 | |
| assert ( | |
| result.errors[0].message | |
| == "Field 'hello' argument 'input' of type 'String!' is required, but it was not provided." | |
| ) | |