Issue #15204: Silence and check the 'U' mode deprecation warnings in tests.
Changed deprecation message in the fileinput module.
diff --git a/Lib/test/test_fileinput.py b/Lib/test/test_fileinput.py
index c5e57d4..db6082c 100644
--- a/Lib/test/test_fileinput.py
+++ b/Lib/test/test_fileinput.py
@@ -22,7 +22,7 @@
from io import StringIO
from fileinput import FileInput, hook_encoded
-from test.support import verbose, TESTFN, run_unittest
+from test.support import verbose, TESTFN, run_unittest, check_warnings
from test.support import unlink as safe_unlink
@@ -224,8 +224,10 @@
try:
# try opening in universal newline mode
t1 = writeTmp(1, [b"A\nB\r\nC\rD"], mode="wb")
- fi = FileInput(files=t1, mode="U")
- lines = list(fi)
+ with check_warnings(('', DeprecationWarning)):
+ fi = FileInput(files=t1, mode="U")
+ with check_warnings(('', DeprecationWarning)):
+ lines = list(fi)
self.assertEqual(lines, ["A\n", "B\n", "C\n", "D"])
finally:
remove_tempfiles(t1)