diff options
Diffstat (limited to 'keystone-moon/tools/colorizer.py')
-rwxr-xr-x | keystone-moon/tools/colorizer.py | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/keystone-moon/tools/colorizer.py b/keystone-moon/tools/colorizer.py new file mode 100755 index 00000000..a16c620c --- /dev/null +++ b/keystone-moon/tools/colorizer.py @@ -0,0 +1,333 @@ +#!/usr/bin/env python + +# Copyright (c) 2013, Nebula, Inc. +# 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. + +"""Display a subunit stream through a colorized unittest test runner.""" + +import heapq +import sys +import unittest + +import six +import subunit +import testtools + + +class _AnsiColorizer(object): + """Colorizer allows callers to write text in a particular color. + + 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): + """Check is the current platform supports coloring terminal output. + + 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 Exception: + # 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): + import win32console + red, green, blue, bold = (win32console.FOREGROUND_RED, + win32console.FOREGROUND_GREEN, + win32console.FOREGROUND_BLUE, + win32console.FOREGROUND_INTENSITY) + self.stream = stream + self.screenBuffer = win32console.GetStdHandle( + win32console.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 'red' + elif elapsed_time > 0.25: + return 'yellow' + else: + return 'green' + + +class OpenStackTestResult(testtools.TestResult): + def __init__(self, stream, descriptions, verbosity): + super(OpenStackTestResult, self).__init__() + self.stream = stream + self.showAll = verbosity > 1 + self.num_slow_tests = 10 + self.slow_tests = [] # this is a fixed-sized heap + 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 + self.start_time = None + self.last_time = {} + self.results = {} + self.last_written = None + + def _writeElapsedTime(self, elapsed): + color = get_elapsed_time_color(elapsed) + self.colorizer.write(" %.2f" % elapsed, color) + + def _addResult(self, test, *args): + try: + name = test.id() + except AttributeError: + name = 'Unknown.unknown' + test_class, test_name = name.rsplit('.', 1) + + elapsed = (self._now() - self.start_time).total_seconds() + item = (elapsed, test_class, test_name) + if len(self.slow_tests) >= self.num_slow_tests: + heapq.heappushpop(self.slow_tests, item) + else: + heapq.heappush(self.slow_tests, item) + + self.results.setdefault(test_class, []) + self.results[test_class].append((test_name, elapsed) + args) + self.last_time[test_class] = self._now() + self.writeTests() + + def _writeResult(self, test_name, elapsed, long_result, color, + short_result, success): + if self.showAll: + self.stream.write(' %s' % str(test_name).ljust(66)) + self.colorizer.write(long_result, color) + if success: + self._writeElapsedTime(elapsed) + self.stream.writeln() + else: + self.colorizer.write(short_result, color) + + def addSuccess(self, test): + super(OpenStackTestResult, self).addSuccess(test) + self._addResult(test, 'OK', 'green', '.', True) + + def addFailure(self, test, err): + if test.id() == 'process-returncode': + return + super(OpenStackTestResult, self).addFailure(test, err) + self._addResult(test, 'FAIL', 'red', 'F', False) + + def addError(self, test, err): + super(OpenStackTestResult, self).addFailure(test, err) + self._addResult(test, 'ERROR', 'red', 'E', False) + + def addSkip(self, test, reason=None, details=None): + super(OpenStackTestResult, self).addSkip(test, reason, details) + self._addResult(test, 'SKIP', 'blue', 'S', True) + + def startTest(self, test): + self.start_time = self._now() + super(OpenStackTestResult, self).startTest(test) + + def writeTestCase(self, cls): + if not self.results.get(cls): + return + if cls != self.last_written: + self.colorizer.write(cls, 'white') + self.stream.writeln() + for result in self.results[cls]: + self._writeResult(*result) + del self.results[cls] + self.stream.flush() + self.last_written = cls + + def writeTests(self): + time = self.last_time.get(self.last_written, self._now()) + if not self.last_written or (self._now() - time).total_seconds() > 2.0: + diff = 3.0 + while diff > 2.0: + classes = self.results.keys() + oldest = min(classes, key=lambda x: self.last_time[x]) + diff = (self._now() - self.last_time[oldest]).total_seconds() + self.writeTestCase(oldest) + else: + self.writeTestCase(self.last_written) + + def done(self): + self.stopTestRun() + + def stopTestRun(self): + for cls in list(six.iterkeys(self.results)): + self.writeTestCase(cls) + self.stream.writeln() + self.writeSlowTests() + + def writeSlowTests(self): + # Pare out 'fast' tests + slow_tests = [item for item in self.slow_tests + if get_elapsed_time_color(item[0]) != 'green'] + if slow_tests: + slow_total_time = sum(item[0] for item in slow_tests) + slow = ("Slowest %i tests took %.2f secs:" + % (len(slow_tests), slow_total_time)) + self.colorizer.write(slow, 'yellow') + self.stream.writeln() + last_cls = None + # sort by name + for elapsed, cls, name in sorted(slow_tests, + key=lambda x: x[1] + x[2]): + if cls != last_cls: + self.colorizer.write(cls, 'white') + self.stream.writeln() + last_cls = cls + self.stream.write(' %s' % str(name).ljust(68)) + self._writeElapsedTime(elapsed) + self.stream.writeln() + + def printErrors(self): + if self.showAll: + self.stream.writeln() + self.printErrorList('ERROR', self.errors) + self.printErrorList('FAIL', self.failures) + + def printErrorList(self, flavor, errors): + for test, err in errors: + self.colorizer.write("=" * 70, 'red') + self.stream.writeln() + self.colorizer.write(flavor, 'red') + self.stream.writeln(": %s" % test.id()) + self.colorizer.write("-" * 70, 'red') + self.stream.writeln() + self.stream.writeln("%s" % err) + + +test = subunit.ProtocolTestCase(sys.stdin, passthrough=None) + +if sys.version_info[0:2] <= (2, 6): + runner = unittest.TextTestRunner(verbosity=2) +else: + runner = unittest.TextTestRunner(verbosity=2, + resultclass=OpenStackTestResult) + +if runner.run(test).wasSuccessful(): + exit_code = 0 +else: + exit_code = 1 +sys.exit(exit_code) |