style: apply black via pre-commit run -a

test/test_subdir_package.py

@@ -12,7 +12,9 @@ subdir_package_project.files['src/spam/spam.c'] = jinja2.Template(SPAM_C_TEMPLAT
 subdir_package_project.template_context['spam_c_top_level_add'] = ''
 subdir_package_project.template_context['spam_c_function_add'] = ''
 
-subdir_package_project.files['src/spam/setup.py'] = r'''
+subdir_package_project.files[
+    'src/spam/setup.py'
+] = r'''
 from setuptools import Extension, setup
 
 setup(
@@ -22,11 +24,15 @@ setup(
 )
 '''
 
-subdir_package_project.files['src/spam/test/run_tests.py'] = r'''
+subdir_package_project.files[
+    'src/spam/test/run_tests.py'
+] = r'''
 print('run_tests.py executed!')
 '''
 
-subdir_package_project.files['bin/before_build.py'] = r'''
+subdir_package_project.files[
+    'bin/before_build.py'
+] = r'''
 print('before_build.py executed!')
 '''
 
@@ -37,16 +43,19 @@ def test(capfd, tmp_path):
 
     package_dir = Path('src', 'spam')
     # build the wheels
-    actual_wheels = utils.cibuildwheel_run(project_dir, package_dir=package_dir, add_env={
-        'CIBW_BEFORE_BUILD': 'python {project}/bin/before_build.py',
-        'CIBW_TEST_COMMAND': 'python {package}/test/run_tests.py',
-        # this shouldn't depend on the version of python, so build only CPython 3.6
-        'CIBW_BUILD': 'cp36-*',
-    })
+    actual_wheels = utils.cibuildwheel_run(
+        project_dir,
+        package_dir=package_dir,
+        add_env={
+            'CIBW_BEFORE_BUILD': 'python {project}/bin/before_build.py',
+            'CIBW_TEST_COMMAND': 'python {package}/test/run_tests.py',
+            # this shouldn't depend on the version of python, so build only CPython 3.6
+            'CIBW_BUILD': 'cp36-*',
+        },
+    )
 
     # check that the expected wheels are produced
-    expected_wheels = [w for w in utils.expected_wheels('spam', '0.1.0')
-                       if 'cp36' in w]
+    expected_wheels = [w for w in utils.expected_wheels('spam', '0.1.0') if 'cp36' in w]
     assert set(actual_wheels) == set(expected_wheels)
 
     captured = capfd.readouterr()