disabling boxed test if version xdist newer than 2.5.0

Author: Chedi

tests/test_pytest_cov.py

@@ -1574,7 +1574,7 @@ def test_foo():
 SCRIPT_SIMPLE_RESULT = '4 * 100%'
 
 
-@pytest.mark.skipif('tuple(int(x) for x in xdist.__version__.split(".")) >= (2, 5, 0)',
+@pytest.mark.skipif('tuple(map(int, xdist.__version__.split("."))) >= (2, 5, 0)',
                     reason="--boxed option was removed in version 2.5.0")
 @pytest.mark.skipif('sys.platform == "win32"')
 def test_dist_boxed(testdir):