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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Colorizer Code is borrowed from Twisted:
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# Copyright (c) 2001-2010 Twisted Matrix Laboratories.
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""Unittest runner for Nova.
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python nova/testing/runner.py
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To run a single test module:
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python nova/testing/runner.py test_compute
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python nova/testing/runner.py api.test_wsgi
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python nova/testing/runner.py
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test_compute:ComputeTestCase.test_run_terminate
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from nose import config
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from nose import result
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gettext.install('nova', unicode=1)
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reldir = os.path.join(os.path.dirname(__file__), '..', '..')
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absdir = os.path.abspath(reldir)
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sys.path.insert(0, absdir)
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from nova import flags
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from nova import log as logging
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from nova.openstack.common import cfg
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class _AnsiColorizer(object):
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A colorizer is an object that loosely wraps around a stream, allowing
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callers to write text to the stream in a particular color.
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Colorizer classes must implement C{supported()} and C{write(text, color)}.
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_colors = dict(black=30, red=31, green=32, yellow=33,
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blue=34, magenta=35, cyan=36, white=37)
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def __init__(self, stream):
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def supported(cls, stream=sys.stdout):
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A class method that returns True if the current platform supports
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coloring terminal output using this method. Returns False otherwise.
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if not stream.isatty():
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return False # auto color only on TTYs
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return curses.tigetnum("colors") > 2
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return curses.tigetnum("colors") > 2
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supported = classmethod(supported)
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def write(self, text, color):
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Write the given text to the stream in the given color.
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@param text: Text to be written to the stream.
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@param color: A string label for a color. e.g. 'red', 'white'.
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color = self._colors[color]
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self.stream.write('\x1b[%s;1m%s\x1b[0m' % (color, text))
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class _Win32Colorizer(object):
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See _AnsiColorizer docstring.
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def __init__(self, stream):
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import win32console as win
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red, green, blue, bold = (win.FOREGROUND_RED, win.FOREGROUND_GREEN,
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win.FOREGROUND_BLUE, win.FOREGROUND_INTENSITY)
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self.screenBuffer = win.GetStdHandle(win.STD_OUT_HANDLE)
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'normal': red | green | blue,
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'green': green | bold,
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'yellow': red | green | bold,
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'magenta': red | blue | bold,
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'cyan': green | blue | bold,
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'white': red | green | blue | bold
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def supported(cls, stream=sys.stdout):
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screenBuffer = win32console.GetStdHandle(
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win32console.STD_OUT_HANDLE)
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screenBuffer.SetConsoleTextAttribute(
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win32console.FOREGROUND_RED |
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win32console.FOREGROUND_GREEN |
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win32console.FOREGROUND_BLUE)
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except pywintypes.error:
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supported = classmethod(supported)
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def write(self, text, color):
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color = self._colors[color]
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self.screenBuffer.SetConsoleTextAttribute(color)
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self.stream.write(text)
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self.screenBuffer.SetConsoleTextAttribute(self._colors['normal'])
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class _NullColorizer(object):
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See _AnsiColorizer docstring.
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def __init__(self, stream):
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def supported(cls, stream=sys.stdout):
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supported = classmethod(supported)
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def write(self, text, color):
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self.stream.write(text)
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def get_elapsed_time_color(elapsed_time):
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if elapsed_time > 1.0:
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elif elapsed_time > 0.25:
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class NovaTestResult(result.TextTestResult):
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def __init__(self, *args, **kw):
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self.show_elapsed = kw.pop('show_elapsed')
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result.TextTestResult.__init__(self, *args, **kw)
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self.num_slow_tests = 5
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self.slow_tests = [] # this is a fixed-sized heap
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self._last_case = None
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self.colorizer = None
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# NOTE(vish): reset stdout for the terminal check
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sys.stdout = sys.__stdout__
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for colorizer in [_Win32Colorizer, _AnsiColorizer, _NullColorizer]:
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if colorizer.supported():
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self.colorizer = colorizer(self.stream)
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# NOTE(lorinh): Initialize start_time in case a sqlalchemy-migrate
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# error results in it failing to be initialized later. Otherwise,
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# _handleElapsedTime will fail, causing the wrong error message to
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self.start_time = time.time()
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def getDescription(self, test):
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def _handleElapsedTime(self, test):
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self.elapsed_time = time.time() - self.start_time
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item = (self.elapsed_time, test)
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# Record only the n-slowest tests using heap
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if len(self.slow_tests) >= self.num_slow_tests:
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heapq.heappushpop(self.slow_tests, item)
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heapq.heappush(self.slow_tests, item)
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def _writeElapsedTime(self, test):
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color = get_elapsed_time_color(self.elapsed_time)
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self.colorizer.write(" %.2f" % self.elapsed_time, color)
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def _writeResult(self, test, long_result, color, short_result, success):
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self.colorizer.write(long_result, color)
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if self.show_elapsed and success:
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self._writeElapsedTime(test)
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self.stream.writeln()
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self.stream.write(short_result)
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# NOTE(vish): copied from unittest with edit to add color
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def addSuccess(self, test):
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unittest.TestResult.addSuccess(self, test)
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self._handleElapsedTime(test)
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self._writeResult(test, 'OK', 'green', '.', True)
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# NOTE(vish): copied from unittest with edit to add color
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def addFailure(self, test, err):
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unittest.TestResult.addFailure(self, test, err)
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self._handleElapsedTime(test)
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self._writeResult(test, 'FAIL', 'red', 'F', False)
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# NOTE(vish): copied from nose with edit to add color
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def addError(self, test, err):
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"""Overrides normal addError to add support for
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errorClasses. If the exception is a registered class, the
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error will be added to the list for that class, not errors.
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self._handleElapsedTime(test)
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stream = getattr(self, 'stream', None)
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exc_info = self._exc_info_to_string(err, test)
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exc_info = self._exc_info_to_string(err)
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for cls, (storage, label, isfail) in self.errorClasses.items():
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if result.isclass(ec) and issubclass(ec, cls):
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storage.append((test, exc_info))
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# Might get patched into a streamless result
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if stream is not None:
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detail = result._exception_detail(err[1])
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message.append(detail)
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stream.writeln(": ".join(message))
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stream.write(label[:1])
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self.errors.append((test, exc_info))
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if stream is not None:
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self._writeResult(test, 'ERROR', 'red', 'E', False)
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def startTest(self, test):
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unittest.TestResult.startTest(self, test)
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self.start_time = time.time()
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current_case = test.test.__class__.__name__
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if current_case != self._last_case:
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self.stream.writeln(current_case)
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self._last_case = current_case
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' %s' % str(test.test._testMethodName).ljust(60))
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class NovaTestRunner(core.TextTestRunner):
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def __init__(self, *args, **kwargs):
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self.show_elapsed = kwargs.pop('show_elapsed')
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core.TextTestRunner.__init__(self, *args, **kwargs)
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def _makeResult(self):
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return NovaTestResult(self.stream,
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show_elapsed=self.show_elapsed)
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def _writeSlowTests(self, result_):
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# Pare out 'fast' tests
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slow_tests = [item for item in result_.slow_tests
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if get_elapsed_time_color(item[0]) != 'green']
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slow_total_time = sum(item[0] for item in slow_tests)
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self.stream.writeln("Slowest %i tests took %.2f secs:"
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% (len(slow_tests), slow_total_time))
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for elapsed_time, test in sorted(slow_tests, reverse=True):
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time_str = "%.2f" % elapsed_time
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self.stream.writeln(" %s %s" % (time_str.ljust(10), test))
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result_ = core.TextTestRunner.run(self, test)
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if self.show_elapsed:
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self._writeSlowTests(result_)
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# This is a fix to allow the --hide-elapsed flag while accepting
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# arbitrary nosetest flags as well
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argv = [x for x in sys.argv if x != '--hide-elapsed']
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hide_elapsed = argv != sys.argv
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# If any argument looks like a test name but doesn't have "nova.tests" in
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# front of it, automatically add that so we don't have to type as much
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for i, arg in enumerate(argv):
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if arg.startswith('test_'):
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argv[i] = 'nova.tests.%s' % arg
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testdir = os.path.abspath(os.path.join("nova", "tests"))
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c = config.Config(stream=sys.stdout,
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plugins=core.DefaultPluginManager())
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runner = NovaTestRunner(stream=c.stream,
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verbosity=c.verbosity,
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show_elapsed=not hide_elapsed)
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sys.exit(not core.run(config=c, testRunner=runner, argv=argv))
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if __name__ == '__main__':
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eventlet.monkey_patch()
added
removed
nova/testing/runner.py
