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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."
)
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