graphene-django/graphene_django/tests/test_command.py
Kien Dang 38709d8396
Correct schema write test (#1416)
<Mock>.called_once() just returns a Mock, so assert <Mock>.called_once()
always passes. We want <Mock>.assert_called_once().
2023-05-27 16:53:22 +03:00

58 lines
1.6 KiB
Python

from textwrap import dedent
from django.core import management
from io import StringIO
from unittest.mock import mock_open, patch
from graphene import ObjectType, Schema, String
@patch("graphene_django.management.commands.graphql_schema.Command.save_json_file")
def test_generate_json_file_on_call_graphql_schema(savefile_mock):
out = StringIO()
management.call_command("graphql_schema", schema="", stdout=out)
assert "Successfully dumped GraphQL schema to schema.json" in out.getvalue()
@patch("json.dump")
def test_json_files_are_canonical(dump_mock):
open_mock = mock_open()
with patch("graphene_django.management.commands.graphql_schema.open", open_mock):
management.call_command("graphql_schema", schema="")
open_mock.assert_called_once()
dump_mock.assert_called_once()
assert dump_mock.call_args[1][
"sort_keys"
], "json.mock() should be used to sort the output"
assert (
dump_mock.call_args[1]["indent"] > 0
), "output should be pretty-printed by default"
def test_generate_graphql_file_on_call_graphql_schema():
class Query(ObjectType):
hi = String()
mock_schema = Schema(query=Query)
open_mock = mock_open()
with patch("graphene_django.management.commands.graphql_schema.open", open_mock):
management.call_command(
"graphql_schema", schema=mock_schema, out="schema.graphql"
)
open_mock.assert_called_once()
handle = open_mock()
handle.write.assert_called_once()
schema_output = handle.write.call_args[0][0]
assert schema_output == dedent(
"""\
type Query {
hi: String
}"""
)