1 files changed, 16 insertions, 0 deletions
diff --git a/Lib/test/test_unittest/support.py b/Lib/test/test_unittest/support.py
index 5292653..8c97bf5 100644
--- a/Lib/test/test_unittest/support.py
+++ b/Lib/test/test_unittest/support.py
@@ -136,3 +136,19 @@ class ResultWithNoStartTestRunStopTestRun(object):
 
     def wasSuccessful(self):
         return True
+
+
+class BufferedWriter:
+    def __init__(self):
+        self.result = ''
+        self.buffer = ''
+
+    def write(self, arg):
+        self.buffer += arg
+
+    def flush(self):
+        self.result += self.buffer
+        self.buffer = ''
+
+    def getvalue(self):
+        return self.result