Merged revisions 79464,79471,79623,79626,79630,79632,79643,79648-79649,79679,79685,79711,79761,79774,79777,79792-79794,79877,79898-79900 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79464 | michael.foord | 2010-03-27 07:55:19 -0500 (Sat, 27 Mar 2010) | 1 line

  A fix for running unittest tests on platforms without the audioop module (e.g. jython and IronPython)
........
  r79471 | michael.foord | 2010-03-27 14:10:11 -0500 (Sat, 27 Mar 2010) | 4 lines

  Addition of delta keyword argument to unittest.TestCase.assertAlmostEquals and assertNotAlmostEquals

  This allows the comparison of objects by specifying a maximum difference; this includes the comparing of non-numeric objects that don't support rounding.
........
  r79623 | michael.foord | 2010-04-02 16:42:47 -0500 (Fri, 02 Apr 2010) | 1 line

  Addition of -b command line option to unittest for buffering stdout and stderr during test runs.
........
  r79626 | michael.foord | 2010-04-02 17:08:29 -0500 (Fri, 02 Apr 2010) | 1 line

  TestResult stores original sys.stdout and tests no longer use sys.__stdout__ (etc) in tests for unittest -b command line option
........
  r79630 | michael.foord | 2010-04-02 17:30:56 -0500 (Fri, 02 Apr 2010) | 1 line

  unittest tests no longer replace the sys.stdout put in place by regrtest
........
  r79632 | michael.foord | 2010-04-02 17:55:59 -0500 (Fri, 02 Apr 2010) | 1 line

  Issue #8038: Addition of unittest.TestCase.assertNotRegexpMatches
........
  r79643 | michael.foord | 2010-04-02 20:15:21 -0500 (Fri, 02 Apr 2010) | 1 line

  Support dotted module names for test discovery paths in unittest. Issue 8038.
........
  r79648 | michael.foord | 2010-04-02 21:21:39 -0500 (Fri, 02 Apr 2010) | 1 line

  Cross platform unittest.TestResult newline handling when buffering stdout / stderr.
........
  r79649 | michael.foord | 2010-04-02 21:33:55 -0500 (Fri, 02 Apr 2010) | 1 line

  Another attempt at a fix for unittest.test.test_result for windows line endings
........
  r79679 | michael.foord | 2010-04-03 09:52:18 -0500 (Sat, 03 Apr 2010) | 1 line

  Adding -b command line option to the unittest usage message.
........
  r79685 | michael.foord | 2010-04-03 10:20:00 -0500 (Sat, 03 Apr 2010) | 1 line

  Minor tweak to unittest command line usage message
........
  r79711 | michael.foord | 2010-04-03 12:03:11 -0500 (Sat, 03 Apr 2010) | 1 line

  Documenting new features in unittest
........
  r79761 | michael.foord | 2010-04-04 17:41:54 -0500 (Sun, 04 Apr 2010) | 1 line

  unittest documentation formatting changes
........
  r79774 | michael.foord | 2010-04-04 18:28:44 -0500 (Sun, 04 Apr 2010) | 1 line

  Adding documentation for new unittest.main() parameters
........
  r79777 | michael.foord | 2010-04-04 19:39:50 -0500 (Sun, 04 Apr 2010) | 1 line

  Document signal handling functions in unittest.rst
........
  r79792 | michael.foord | 2010-04-05 05:26:26 -0500 (Mon, 05 Apr 2010) | 1 line

  Documentation fixes for unittest
........
  r79793 | michael.foord | 2010-04-05 05:28:27 -0500 (Mon, 05 Apr 2010) | 1 line

  Furterh documentation fix for unittest.rst
........
  r79794 | michael.foord | 2010-04-05 05:30:14 -0500 (Mon, 05 Apr 2010) | 1 line

  Further documentation fix for unittest.rst
........
  r79877 | michael.foord | 2010-04-06 18:18:16 -0500 (Tue, 06 Apr 2010) | 1 line

  Fix module directory finding logic for dotted paths in unittest test discovery.
........
  r79898 | michael.foord | 2010-04-07 18:04:22 -0500 (Wed, 07 Apr 2010) | 1 line

  unittest.result.TestResult does not create its buffers until they're used. It uses StringIO not cStringIO. Issue 8333.
........
  r79899 | michael.foord | 2010-04-07 19:04:24 -0500 (Wed, 07 Apr 2010) | 1 line

  Switch regrtest to use StringIO instead of cStringIO for test_multiprocessing on Windows. Issue 8333.
........
  r79900 | michael.foord | 2010-04-07 23:33:20 -0500 (Wed, 07 Apr 2010) | 1 line

  Correction of unittest documentation typos and omissions
........

1 files changed, 62 insertions, 2 deletions

diff --git a/Lib/unittest/result.py b/Lib/unittest/result.py
index ec80e8e..92b1f91 100644
--- a/Lib/unittest/result.py
+++ b/Lib/unittest/result.py
@@ -1,5 +1,8 @@
 """Test result object"""
 
+import os
+import io
+import sys
 import traceback
 
 from . import util
@@ -15,6 +18,10 @@ def failfast(method):
         return method(self, *args, **kw)
     return inner
 
+STDOUT_LINE = '\nStdout:\n%s'
+STDERR_LINE = '\nStderr:\n%s'
+
+
 class TestResult(object):
     """Holder for test result information.
 
@@ -37,6 +44,12 @@ class TestResult(object):
         self.expectedFailures = []
         self.unexpectedSuccesses = []
         self.shouldStop = False
+        self.buffer = False
+        self._stdout_buffer = None
+        self._stderr_buffer = None
+        self._original_stdout = sys.stdout
+        self._original_stderr = sys.stderr
+        self._mirrorOutput = False
 
     def printErrors(self):
         "Called by TestRunner after test run"
@@ -44,6 +57,13 @@ class TestResult(object):
     def startTest(self, test):
         "Called when the given test is about to be run"
         self.testsRun += 1
+        self._mirrorOutput = False
+        if self.buffer:
+            if self._stderr_buffer is None:
+                self._stderr_buffer = io.StringIO()
+                self._stdout_buffer = io.StringIO()
+            sys.stdout = self._stdout_buffer
+            sys.stderr = self._stderr_buffer
 
     def startTestRun(self):
         """Called once before any tests are executed.
@@ -53,6 +73,26 @@ class TestResult(object):
 
     def stopTest(self, test):
         """Called when the given test has been run"""
+        if self.buffer:
+            if self._mirrorOutput:
+                output = sys.stdout.getvalue()
+                error = sys.stderr.getvalue()
+                if output:
+                    if not output.endswith('\n'):
+                        output += '\n'
+                    self._original_stdout.write(STDOUT_LINE % output)
+                if error:
+                    if not error.endswith('\n'):
+                        error += '\n'
+                    self._original_stderr.write(STDERR_LINE % error)
+
+            sys.stdout = self._original_stdout
+            sys.stderr = self._original_stderr
+            self._stdout_buffer.seek(0)
+            self._stdout_buffer.truncate()
+            self._stderr_buffer.seek(0)
+            self._stderr_buffer.truncate()
+        self._mirrorOutput = False
 
     def stopTestRun(self):
         """Called once after all tests are executed.
@@ -66,12 +106,14 @@ class TestResult(object):
         returned by sys.exc_info().
         """
         self.errors.append((test, self._exc_info_to_string(err, test)))
+        self._mirrorOutput = True
 
     @failfast
     def addFailure(self, test, err):
         """Called when an error has occurred. 'err' is a tuple of values as
         returned by sys.exc_info()."""
         self.failures.append((test, self._exc_info_to_string(err, test)))
+        self._mirrorOutput = True
 
     def addSuccess(self, test):
         "Called when a test has completed successfully"
@@ -105,11 +147,29 @@ class TestResult(object):
         # Skip test runner traceback levels
         while tb and self._is_relevant_tb_level(tb):
             tb = tb.tb_next
+
         if exctype is test.failureException:
             # Skip assert*() traceback levels
             length = self._count_relevant_tb_levels(tb)
-            return ''.join(traceback.format_exception(exctype, value, tb, length))
-        return ''.join(traceback.format_exception(exctype, value, tb))
+            msgLines = traceback.format_exception(exctype, value, tb, length)
+        else:
+            chain = exctype is not None
+            msgLines = traceback.format_exception(exctype, value, tb,
+                                                  chain=chain)
+
+        if self.buffer:
+            output = sys.stdout.getvalue()
+            error = sys.stderr.getvalue()
+            if output:
+                if not output.endswith('\n'):
+                    output += '\n'
+                msgLines.append(STDOUT_LINE % output)
+            if error:
+                if not error.endswith('\n'):
+                    error += '\n'
+                msgLines.append(STDERR_LINE % error)
+        return ''.join(msgLines)
+
 
     def _is_relevant_tb_level(self, tb):
         return '__unittest' in tb.tb_frame.f_globals