Add suppression context manager

Author: CharlieZhao95

Lib/test/test_eof.py

@@ -1,6 +1,7 @@
 """test script for a few new invalid token catches"""
 
 import sys
+import warnings
 from test import support
 from test.support import os_helper
 from test.support import script_helper
@@ -38,12 +39,14 @@ def test_EOFS_with_file(self):
 
     def test_eof_with_line_continuation(self):
         expect = "unexpected EOF while parsing (<string>, line 1)"
-        try:
-            compile('"\\Xhh" \\', '<string>', 'exec')
-        except SyntaxError as msg:
-            self.assertEqual(str(msg), expect)
-        else:
-            raise support.TestFailed
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore", SyntaxWarning)
+            try:
+                compile('"\\Xhh" \\', '<string>', 'exec')
+            except SyntaxError as msg:
+                self.assertEqual(str(msg), expect)
+            else:
+                raise support.TestFailed
 
     def test_line_continuation_EOF(self):
         """A continuation at the end of input must be an error; bpo2180."""