Invoke build command in typing file test

Co-authored-by: Daniel Naylor <daniel@ggim.me>

Author: 2 people

setuptools/tests/test_build_py.py

@@ -421,6 +421,7 @@ def test_type_files_included_by_default(self, tmpdir_cwd, pyproject, example):
         jaraco.path.build(structure)
 
         build_py = get_finalized_build_py()
+        build_py.run_command("build")
         outputs = get_outputs(build_py)
         assert expected_type_files <= outputs