Rely on tree builder in test_dir_util. Ref #232.

distutils/tests/test_dir_util.py

@@ -4,6 +4,10 @@
 import stat
 import unittest.mock as mock
 
+import jaraco.path
+import path
+import pytest
+
 from distutils import dir_util, errors
 from distutils.dir_util import (
     mkpath,
@@ -14,7 +18,6 @@
 )
 
 from distutils.tests import support
-import pytest
 
 
 @pytest.fixture(autouse=True)
@@ -71,9 +74,8 @@ def test_copy_tree_verbosity(self, caplog):
         remove_tree(self.root_target, verbose=0)
 
         mkpath(self.target, verbose=0)
-        a_file = os.path.join(self.target, 'ok.txt')
-        with open(a_file, 'w') as f:
-            f.write('some content')
+        a_file = path.Path(self.target) / 'ok.txt'
+        jaraco.path.build({'ok.txt': 'some content'}, self.target)
 
         wanted = [f'copying {a_file} -> {self.target2}']
         copy_tree(self.target, self.target2, verbose=1)
@@ -85,11 +87,7 @@ def test_copy_tree_verbosity(self, caplog):
     def test_copy_tree_skips_nfs_temp_files(self):
         mkpath(self.target, verbose=0)
 
-        a_file = os.path.join(self.target, 'ok.txt')
-        nfs_file = os.path.join(self.target, '.nfs123abc')
-        for f in a_file, nfs_file:
-            with open(f, 'w') as fh:
-                fh.write('some content')
+        jaraco.path.build({'ok.txt': 'some content', '.nfs123abc': ''}, self.target)
 
         copy_tree(self.target, self.target2)
         assert os.listdir(self.target2) == ['ok.txt']