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from graphql.language import parse
from graphql.utilities import get_operation_ast
def describe_get_operation_ast():
def gets_an_operation_from_a_simple_document():
doc = parse("{ field }")
assert get_operation_ast(doc) == doc.definitions[0]
def gets_an_operation_from_a_document_with_named_op_mutation():
doc = parse("mutation Test { field }")
assert get_operation_ast(doc) == doc.definitions[0]
def gets_an_operation_from_a_document_with_named_op_subscription():
doc = parse("subscription Test { field }")
assert get_operation_ast(doc) == doc.definitions[0]
def does_not_get_missing_operation():
doc = parse("type Foo { field: String }")
assert get_operation_ast(doc) is None
def does_not_get_ambiguous_unnamed_operation():
doc = parse(
"""
{ field }
mutation Test { field }
subscription TestSub { field }
"""
)
assert get_operation_ast(doc) is None
def does_not_get_ambiguous_named_operation():
doc = parse(
"""
query TestQ { field }
mutation TestM { field }
subscription TestS { field }
"""
)
assert get_operation_ast(doc) is None
def does_not_get_misnamed_operation():
doc = parse(
"""
query TestQ { field }
mutation TestM { field }
subscription TestS { field }
"""
)
assert get_operation_ast(doc, "Unknown") is None
def gets_named_operation():
doc = parse(
"""
query TestQ { field }
mutation TestM { field }
subscription TestS { field }
"""
)
assert get_operation_ast(doc, "TestQ") == doc.definitions[0]
assert get_operation_ast(doc, "TestM") == doc.definitions[1]
assert get_operation_ast(doc, "TestS") == doc.definitions[2]
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