Issue #12400: runtest() truncates the StringIO stream before a new test

85b3a492 · Victor Stinner · 125b2ba4 · 85b3a492
Commit 85b3a492 authored Jun 29, 2011 by Victor Stinner
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Lib/test/regrtest.py Lib/test/regrtest.py +1 -0

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--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -793,6 +793,7 @@ def runtest(test, verbose, quiet,
            if runtest.stringio is None:
                runtest.stringio = io.StringIO()
            stream = runtest.stringio
+            stream.truncate(0)

            orig_stdout = sys.stdout
            orig_stderr = sys.stderr