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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Colorizer Code is borrowed from Twisted:
# Copyright (c) 2001-2010 Twisted Matrix Laboratories.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""Unittest runner for Nova.
To run all tests
python run_tests.py
To run a single test:
python run_tests.py test_compute:ComputeTestCase.test_run_terminate
To run a single test module:
python run_tests.py test_compute
or
python run_tests.py api.test_wsgi
"""
import gettext
import heapq
import os
import unittest
import sys
import time
gettext.install('nova', unicode=1)
from nose import config
from nose import core
from nose import result
from nova import log as logging
class _AnsiColorizer(object):
"""
A colorizer is an object that loosely wraps around a stream, allowing
callers to write text to the stream in a particular color.
Colorizer classes must implement C{supported()} and C{write(text, color)}.
"""
_colors = dict(black=30, red=31, green=32, yellow=33,
blue=34, magenta=35, cyan=36, white=37)
def __init__(self, stream):
self.stream = stream
def supported(cls, stream=sys.stdout):
"""
A class method that returns True if the current platform supports
coloring terminal output using this method. Returns False otherwise.
"""
if not stream.isatty():
return False # auto color only on TTYs
try:
import curses
except ImportError:
return False
else:
try:
try:
return curses.tigetnum("colors") > 2
except curses.error:
curses.setupterm()
return curses.tigetnum("colors") > 2
except:
raise
# guess false in case of error
return False
supported = classmethod(supported)
def write(self, text, color):
"""
Write the given text to the stream in the given color.
@param text: Text to be written to the stream.
@param color: A string label for a color. e.g. 'red', 'white'.
"""
color = self._colors[color]
self.stream.write('\x1b[%s;1m%s\x1b[0m' % (color, text))
class _Win32Colorizer(object):
"""
See _AnsiColorizer docstring.
"""
def __init__(self, stream):
from win32console import GetStdHandle, STD_OUT_HANDLE, \
FOREGROUND_RED, FOREGROUND_BLUE, FOREGROUND_GREEN, \
FOREGROUND_INTENSITY
red, green, blue, bold = (FOREGROUND_RED, FOREGROUND_GREEN,
FOREGROUND_BLUE, FOREGROUND_INTENSITY)
self.stream = stream
self.screenBuffer = GetStdHandle(STD_OUT_HANDLE)
self._colors = {
'normal': red | green | blue,
'red': red | bold,
'green': green | bold,
'blue': blue | bold,
'yellow': red | green | bold,
'magenta': red | blue | bold,
'cyan': green | blue | bold,
'white': red | green | blue | bold
}
def supported(cls, stream=sys.stdout):
try:
import win32console
screenBuffer = win32console.GetStdHandle(
win32console.STD_OUT_HANDLE)
except ImportError:
return False
import pywintypes
try:
screenBuffer.SetConsoleTextAttribute(
win32console.FOREGROUND_RED |
win32console.FOREGROUND_GREEN |
win32console.FOREGROUND_BLUE)
except pywintypes.error:
return False
else:
return True
supported = classmethod(supported)
def write(self, text, color):
color = self._colors[color]
self.screenBuffer.SetConsoleTextAttribute(color)
self.stream.write(text)
self.screenBuffer.SetConsoleTextAttribute(self._colors['normal'])
class _NullColorizer(object):
"""
See _AnsiColorizer docstring.
"""
def __init__(self, stream):
self.stream = stream
def supported(cls, stream=sys.stdout):
return True
supported = classmethod(supported)
def write(self, text, color):
self.stream.write(text)
def get_elapsed_time_color(elapsed_time):
if elapsed_time > 1.0:
return 'cyan'
elif elapsed_time > 0.25:
return 'yellow'
else:
return 'green'
class NovaTestResult(result.TextTestResult):
def __init__(self, *args, **kw):
self.show_elapsed = kw.pop('show_elapsed')
result.TextTestResult.__init__(self, *args, **kw)
self.num_slow_tests = 5
self.slow_tests = [] # this is a fixed-sized heap
self._last_case = None
self.colorizer = None
# NOTE(vish): reset stdout for the terminal check
stdout = sys.stdout
sys.stdout = sys.__stdout__
for colorizer in [_Win32Colorizer, _AnsiColorizer, _NullColorizer]:
if colorizer.supported():
self.colorizer = colorizer(self.stream)
break
sys.stdout = stdout
# NOTE(lorinh): Initialize start_time in case a sqlalchemy-migrate
# error results in it failing to be initialized later. Otherwise,
# _handleElapsedTime will fail, causing the wrong error message to
# be outputted.
self.start_time = time.time()
def getDescription(self, test):
return str(test)
def _handleElapsedTime(self, test):
self.elapsed_time = time.time() - self.start_time
item = (self.elapsed_time, test)
# Record only the n-slowest tests using heap
if len(self.slow_tests) >= self.num_slow_tests:
heapq.heappushpop(self.slow_tests, item)
else:
heapq.heappush(self.slow_tests, item)
def _writeElapsedTime(self, test):
color = get_elapsed_time_color(self.elapsed_time)
self.colorizer.write(" %.2f" % self.elapsed_time, color)
def _writeResult(self, test, long_result, color, short_result, success):
if self.showAll:
self.colorizer.write(long_result, color)
if self.show_elapsed and success:
self._writeElapsedTime(test)
self.stream.writeln()
elif self.dots:
self.stream.write(short_result)
self.stream.flush()
# NOTE(vish): copied from unittest with edit to add color
def addSuccess(self, test):
unittest.TestResult.addSuccess(self, test)
self._handleElapsedTime(test)
self._writeResult(test, 'OK', 'green', '.', True)
# NOTE(vish): copied from unittest with edit to add color
def addFailure(self, test, err):
unittest.TestResult.addFailure(self, test, err)
self._handleElapsedTime(test)
self._writeResult(test, 'FAIL', 'red', 'F', False)
# NOTE(vish): copied from nose with edit to add color
def addError(self, test, err):
"""Overrides normal addError to add support for
errorClasses. If the exception is a registered class, the
error will be added to the list for that class, not errors.
"""
self._handleElapsedTime(test)
stream = getattr(self, 'stream', None)
ec, ev, tb = err
try:
exc_info = self._exc_info_to_string(err, test)
except TypeError:
# 2.3 compat
exc_info = self._exc_info_to_string(err)
for cls, (storage, label, isfail) in self.errorClasses.items():
if result.isclass(ec) and issubclass(ec, cls):
if isfail:
test.passed = False
storage.append((test, exc_info))
# Might get patched into a streamless result
if stream is not None:
if self.showAll:
message = [label]
detail = result._exception_detail(err[1])
if detail:
message.append(detail)
stream.writeln(": ".join(message))
elif self.dots:
stream.write(label[:1])
return
self.errors.append((test, exc_info))
test.passed = False
if stream is not None:
self._writeResult(test, 'ERROR', 'red', 'E', False)
def startTest(self, test):
unittest.TestResult.startTest(self, test)
self.start_time = time.time()
current_case = test.test.__class__.__name__
if self.showAll:
if current_case != self._last_case:
self.stream.writeln(current_case)
self._last_case = current_case
self.stream.write(
' %s' % str(test.test._testMethodName).ljust(60))
self.stream.flush()
class NovaTestRunner(core.TextTestRunner):
def __init__(self, *args, **kwargs):
self.show_elapsed = kwargs.pop('show_elapsed')
core.TextTestRunner.__init__(self, *args, **kwargs)
def _makeResult(self):
return NovaTestResult(self.stream,
self.descriptions,
self.verbosity,
self.config,
show_elapsed=self.show_elapsed)
def _writeSlowTests(self, result_):
# Pare out 'fast' tests
slow_tests = [item for item in result_.slow_tests
if get_elapsed_time_color(item[0]) != 'green']
if slow_tests:
slow_total_time = sum(item[0] for item in slow_tests)
self.stream.writeln("Slowest %i tests took %.2f secs:"
% (len(slow_tests), slow_total_time))
for elapsed_time, test in sorted(slow_tests, reverse=True):
time_str = "%.2f" % elapsed_time
self.stream.writeln(" %s %s" % (time_str.ljust(10), test))
def run(self, test):
result_ = core.TextTestRunner.run(self, test)
if self.show_elapsed:
self._writeSlowTests(result_)
return result_
if __name__ == '__main__':
logging.setup()
# If any argument looks like a test name but doesn't have "nova.tests" in
# front of it, automatically add that so we don't have to type as much
show_elapsed = True
argv = []
test_fixture = os.getenv("UNITTEST_FIXTURE", "reddwarf")
for x in sys.argv:
if x.startswith('test_'):
argv.append('%s.tests.%s' % (test_fixture, x))
elif x.startswith('--hide-elapsed'):
show_elapsed = False
else:
argv.append(x)
testdir = os.path.abspath(os.path.join(test_fixture, "tests"))
c = config.Config(stream=sys.stdout,
env=os.environ,
verbosity=3,
workingDir=testdir,
plugins=core.DefaultPluginManager())
runner = NovaTestRunner(stream=c.stream,
verbosity=c.verbosity,
config=c,
show_elapsed=show_elapsed)
sys.exit(not core.run(config=c, testRunner=runner, argv=argv))
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