300 lines
10 KiB
Python
300 lines
10 KiB
Python
#!/usr/bin/env python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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import heapq
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import os
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import unittest
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import sys
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import time
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from nose import config
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from nose import result
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from nose import core
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class _AnsiColorizer(object):
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"""
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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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"""
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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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self.stream = stream
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def supported(cls, stream=sys.stdout):
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"""
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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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"""
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if not stream.isatty():
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return False # auto color only on TTYs
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try:
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import curses
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except ImportError:
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return False
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else:
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try:
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try:
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return curses.tigetnum("colors") > 2
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except curses.error:
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curses.setupterm()
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return curses.tigetnum("colors") > 2
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except:
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raise
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# guess false in case of error
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return False
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supported = classmethod(supported)
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def write(self, text, color):
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"""
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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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"""
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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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"""
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See _AnsiColorizer docstring.
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"""
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def __init__(self, stream):
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from win32console import GetStdHandle, STD_OUT_HANDLE, \
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FOREGROUND_RED, FOREGROUND_BLUE, FOREGROUND_GREEN, \
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FOREGROUND_INTENSITY
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red, green, blue, bold = (FOREGROUND_RED, FOREGROUND_GREEN,
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FOREGROUND_BLUE, FOREGROUND_INTENSITY)
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self.stream = stream
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self.screenBuffer = GetStdHandle(STD_OUT_HANDLE)
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self._colors = {
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'normal': red | green | blue,
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'red': red | bold,
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'green': green | bold,
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'blue': blue | 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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}
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def supported(cls, stream=sys.stdout):
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try:
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import win32console
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screenBuffer = win32console.GetStdHandle(
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win32console.STD_OUT_HANDLE)
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except ImportError:
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return False
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import pywintypes
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try:
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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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return False
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else:
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return True
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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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"""
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See _AnsiColorizer docstring.
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"""
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def __init__(self, stream):
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self.stream = stream
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def supported(cls, stream=sys.stdout):
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return True
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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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return 'red'
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elif elapsed_time > 0.25:
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return 'yellow'
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else:
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return 'green'
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class KongTestResult(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, tfukushima): reset stdout for the terminal check
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stdout = sys.__stdout__
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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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break
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sys.stdout = stdout
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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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# be outputted.
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self.start_time = time.time()
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def getDescription(self, test):
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return str(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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else:
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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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if self.showAll:
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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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elif self.dots:
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self.stream.write(short_result)
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self.stream.flush()
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# NOTE(vish, tfukushima): 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, tfukushima): 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, tfukushima): copied from unittest 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 errorClasses.
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If the exception is a registered class, the error will be added
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to the list for that class, not errors.
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"""
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self._handleElapsedTime(test)
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stream = getattr(self, 'stream', None)
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ec, ev, tb = err
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try:
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exc_info = self._exc_info_to_string(err, test)
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except TypeError:
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# This is for compatibility with Python 2.3.
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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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if isfail:
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test.passwd = False
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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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if self.showAll:
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message = [label]
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detail = result._exception_detail(err[1])
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if detail:
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message.append(detail)
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stream.writeln(": ".join(message))
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elif self.dots:
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stream.write(label[:1])
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return
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self.errors.append((test, exc_info))
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test.passed = False
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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 self.showAll:
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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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self.stream.write(
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' %s' % str(test.test._testMethodName).ljust(60))
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self.stream.flush()
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class KongTestRunner(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 KongTestResult(self.stream,
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self.descriptions,
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self.verbosity,
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self.config,
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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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if slow_tests:
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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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def run(self, 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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return result_
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if __name__ == '__main__':
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show_elapsed = True
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argv = []
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for x in sys.argv:
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if x.startswith('test_'):
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argv.append('nova.tests.%s' % x)
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elif x.startswith('--hide-elapsed'):
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show_elapsed = False
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else:
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argv.append(x)
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c = config.Config(stream=sys.stdout,
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env=os.environ,
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verbosity=3,
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plugins=core.DefaultPluginManager())
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runner = KongTestRunner(stream=c.stream,
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verbosity=c.verbosity,
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config=c,
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show_elapsed=show_elapsed)
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sys.exit(not core.run(config=c, testRunner=runner, argv=argv))
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