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from pytest import raises
from graphene import ObjectType, String
from ..module_loading import import_string, lazy_import
def test_import_string():
MyString = import_string("graphene.String")
assert MyString == String
MyObjectTypeMeta = import_string("graphene.ObjectType", "__doc__")
assert MyObjectTypeMeta == ObjectType.__doc__
def test_import_string_module():
with raises(Exception) as exc_info:
import_string("graphenea")
assert str(exc_info.value) == "graphenea doesn't look like a module path"
def test_import_string_class():
with raises(Exception) as exc_info:
import_string("graphene.Stringa")
assert (
str(exc_info.value)
== 'Module "graphene" does not define a "Stringa" attribute/class'
)
def test_import_string_attributes():
with raises(Exception) as exc_info:
import_string("graphene.String", "length")
assert (
str(exc_info.value)
== 'Module "graphene" does not define a "length" attribute inside attribute/class '
'"String"'
)
with raises(Exception) as exc_info:
import_string("graphene.ObjectType", "__class__.length")
assert (
str(exc_info.value)
== 'Module "graphene" does not define a "__class__.length" attribute inside '
'attribute/class "ObjectType"'
)
with raises(Exception) as exc_info:
import_string("graphene.ObjectType", "__classa__.__base__")
assert (
str(exc_info.value)
== 'Module "graphene" does not define a "__classa__" attribute inside attribute/class '
'"ObjectType"'
)
def test_lazy_import():
f = lazy_import("graphene.String")
MyString = f()
assert MyString == String
f = lazy_import("graphene.ObjectType", "__doc__")
MyObjectTypeMeta = f()
assert MyObjectTypeMeta == ObjectType.__doc__
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