Install pytest while running mypy

To avoid mypy warnings, since we run mypy over the tests,
and the tests import from pytest.

Author: Cito

tests/conftest.py

@@ -1,6 +1,6 @@
 # pytest configuration
 
-import pytest  # type: ignore
+import pytest
 
 
 def pytest_addoption(parser):

tests/error/test_format_error.py

@@ -1,6 +1,6 @@
 from typing import List, Union
 
-from pytest import raises  # type: ignore
+from pytest import raises
 
 from graphql.error import GraphQLError, format_error
 from graphql.language import Node, Source

tests/execution/test_abstract_async.py

@@ -1,6 +1,6 @@
 from typing import NamedTuple
 
-from pytest import mark  # type: ignore
+from pytest import mark
 
 from graphql import graphql
 from graphql.type import (

tests/execution/test_execution_result.py

@@ -1,4 +1,4 @@
-from pytest import raises  # type: ignore
+from pytest import raises
 
 from graphql.error import GraphQLError
 from graphql.execution import ExecutionResult

tests/execution/test_executor.py

@@ -1,7 +1,7 @@
 import asyncio
 from typing import cast, Any, Awaitable, Optional
 
-from pytest import raises, mark  # type: ignore
+from pytest import mark, raises
 
 from graphql.error import GraphQLError
 from graphql.execution import execute, execute_sync

tests/execution/test_lists.py

@@ -1,6 +1,6 @@
 from typing import Any
 
-from pytest import mark  # type: ignore
+from pytest import mark
 
 from graphql.execution import execute, execute_sync, ExecutionResult
 from graphql.language import parse

tests/execution/test_middleware.py

@@ -1,6 +1,6 @@
 from typing import Awaitable
 
-from pytest import mark, raises  # type: ignore
+from pytest import mark, raises
 
 from graphql.execution import MiddlewareManager, execute
 from graphql.language.parser import parse

tests/execution/test_mutations.py

@@ -1,7 +1,7 @@
 import asyncio
 from typing import Awaitable
 
-from pytest import mark  # type: ignore
+from pytest import mark
 
 from graphql.execution import execute, execute_sync
 from graphql.language import parse

tests/execution/test_nonnull.py

@@ -1,7 +1,7 @@
 import re
 from typing import Any, Awaitable, cast
 
-from pytest import mark  # type: ignore
+from pytest import mark
 
 from graphql.execution import execute, execute_sync, ExecutionResult
 from graphql.language import parse

tests/execution/test_parallel.py

@@ -1,7 +1,7 @@
 import asyncio
 from typing import Awaitable
 
-from pytest import mark  # type: ignore
+from pytest import mark
 
 from graphql.execution import execute
 from graphql.language import parse