Rewrite access check in create_archive with EAFP1899-create_archive_fix

Signed-off-by: Joffrey F <joffrey@docker.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/tests/unit/utils_test.py b/tests/unit/utils_test.py
index 1f9daf6..3139a97 100644
--- a/tests/unit/utils_test.py
+++ b/tests/unit/utils_test.py
@@ -933,7 +933,10 @@ class TarTest(unittest.TestCase):
             tar_data = tarfile.open(fileobj=archive)
             assert sorted(tar_data.getnames()) == ['bar', 'foo']
 
-    @pytest.mark.skipif(IS_WINDOWS_PLATFORM, reason='No chmod on Windows')
+    @pytest.mark.skipif(
+        IS_WINDOWS_PLATFORM or os.geteuid() == 0,
+        reason='root user always has access ; no chmod on Windows'
+    )
     def test_tar_with_inaccessible_file(self):
         base = tempfile.mkdtemp()
         full_path = os.path.join(base, 'foo')
@@ -944,8 +947,9 @@ class TarTest(unittest.TestCase):
         with pytest.raises(IOError) as ei:
             tar(base)
 
-        assert 'Can not access file in context: {}'.format(full_path) in \
+        assert 'Can not read file in context: {}'.format(full_path) in (
             ei.exconly()
+        )
 
     @pytest.mark.skipif(IS_WINDOWS_PLATFORM, reason='No symlinks on Windows')
     def test_tar_with_file_symlinks(self):