351 lines
11 KiB
Python
351 lines
11 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""
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Unit test runner, providing new features on top of unittest module:
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- colourized output
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- parallel run (UNIX only)
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- print failures/tracebacks on CTRL+C
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- re-run failed tests only (make test-failed)
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Invocation examples:
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- make test
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- make test-failed
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Parallel:
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- make test-parallel
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- make test-process ARGS=--parallel
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"""
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from __future__ import print_function
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import atexit
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import optparse
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import os
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import sys
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import textwrap
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import time
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import unittest
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try:
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import ctypes
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except ImportError:
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ctypes = None
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try:
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import concurrencytest # pip install concurrencytest
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except ImportError:
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concurrencytest = None
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import psutil
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from psutil._common import hilite
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from psutil._common import print_color
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from psutil._common import term_supports_colors
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from psutil._compat import super
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from psutil.tests import CI_TESTING
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from psutil.tests import import_module_by_path
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from psutil.tests import print_sysinfo
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from psutil.tests import reap_children
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from psutil.tests import safe_rmpath
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VERBOSITY = 2
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FAILED_TESTS_FNAME = '.failed-tests.txt'
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NWORKERS = psutil.cpu_count() or 1
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USE_COLORS = not CI_TESTING and term_supports_colors()
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HERE = os.path.abspath(os.path.dirname(__file__))
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loadTestsFromTestCase = unittest.defaultTestLoader.loadTestsFromTestCase
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def cprint(msg, color, bold=False, file=None):
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if file is None:
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file = sys.stderr if color == 'red' else sys.stdout
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if USE_COLORS:
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print_color(msg, color, bold=bold, file=file)
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else:
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print(msg, file=file)
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class TestLoader:
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testdir = HERE
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skip_files = ['test_memleaks.py']
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if "WHEELHOUSE_UPLOADER_USERNAME" in os.environ:
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skip_files.extend(['test_osx.py', 'test_linux.py', 'test_posix.py'])
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def _get_testmods(self):
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return [os.path.join(self.testdir, x)
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for x in os.listdir(self.testdir)
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if x.startswith('test_') and x.endswith('.py') and
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x not in self.skip_files]
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def _iter_testmod_classes(self):
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"""Iterate over all test files in this directory and return
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all TestCase classes in them.
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"""
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for path in self._get_testmods():
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mod = import_module_by_path(path)
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for name in dir(mod):
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obj = getattr(mod, name)
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if isinstance(obj, type) and \
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issubclass(obj, unittest.TestCase):
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yield obj
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def all(self):
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suite = unittest.TestSuite()
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for obj in self._iter_testmod_classes():
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test = loadTestsFromTestCase(obj)
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suite.addTest(test)
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return suite
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def last_failed(self):
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# ...from previously failed test run
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suite = unittest.TestSuite()
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if not os.path.isfile(FAILED_TESTS_FNAME):
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return suite
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with open(FAILED_TESTS_FNAME, 'rt') as f:
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names = f.read().split()
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for n in names:
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test = unittest.defaultTestLoader.loadTestsFromName(n)
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suite.addTest(test)
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return suite
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def from_name(self, name):
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if name.endswith('.py'):
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name = os.path.splitext(os.path.basename(name))[0]
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return unittest.defaultTestLoader.loadTestsFromName(name)
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class ColouredResult(unittest.TextTestResult):
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def addSuccess(self, test):
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unittest.TestResult.addSuccess(self, test)
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cprint("OK", "green")
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def addError(self, test, err):
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unittest.TestResult.addError(self, test, err)
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cprint("ERROR", "red", bold=True)
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def addFailure(self, test, err):
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unittest.TestResult.addFailure(self, test, err)
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cprint("FAIL", "red")
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def addSkip(self, test, reason):
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unittest.TestResult.addSkip(self, test, reason)
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cprint("skipped: %s" % reason.strip(), "brown")
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def printErrorList(self, flavour, errors):
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flavour = hilite(flavour, "red", bold=flavour == 'ERROR')
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super().printErrorList(flavour, errors)
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class ColouredTextRunner(unittest.TextTestRunner):
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"""
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A coloured text runner which also prints failed tests on KeyboardInterrupt
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and save failed tests in a file so that they can be re-run.
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"""
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resultclass = ColouredResult if USE_COLORS else unittest.TextTestResult
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.failed_tnames = set()
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def _makeResult(self):
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# Store result instance so that it can be accessed on
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# KeyboardInterrupt.
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self.result = super()._makeResult()
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return self.result
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def _write_last_failed(self):
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if self.failed_tnames:
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with open(FAILED_TESTS_FNAME, 'wt') as f:
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for tname in self.failed_tnames:
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f.write(tname + '\n')
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def _save_result(self, result):
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if not result.wasSuccessful():
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for t in result.errors + result.failures:
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tname = t[0].id()
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self.failed_tnames.add(tname)
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def _run(self, suite):
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try:
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result = super().run(suite)
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except (KeyboardInterrupt, SystemExit):
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result = self.runner.result
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result.printErrors()
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raise sys.exit(1)
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else:
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self._save_result(result)
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return result
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def _exit(self, success):
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if success:
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cprint("SUCCESS", "green", bold=True)
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safe_rmpath(FAILED_TESTS_FNAME)
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sys.exit(0)
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else:
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cprint("FAILED", "red", bold=True)
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self._write_last_failed()
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sys.exit(1)
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def run(self, suite):
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result = self._run(suite)
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self._exit(result.wasSuccessful())
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class ParallelRunner(ColouredTextRunner):
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@staticmethod
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def _parallelize(suite):
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def fdopen(fd, mode, *kwds):
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stream = orig_fdopen(fd, mode)
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atexit.register(stream.close)
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return stream
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# Monkey patch concurrencytest lib bug (fdopen() stream not closed).
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# https://github.com/cgoldberg/concurrencytest/issues/11
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orig_fdopen = os.fdopen
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concurrencytest.os.fdopen = fdopen
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forker = concurrencytest.fork_for_tests(NWORKERS)
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return concurrencytest.ConcurrentTestSuite(suite, forker)
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@staticmethod
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def _split_suite(suite):
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serial = unittest.TestSuite()
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parallel = unittest.TestSuite()
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for test in suite:
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if test.countTestCases() == 0:
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continue
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elif isinstance(test, unittest.TestSuite):
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test_class = test._tests[0].__class__
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elif isinstance(test, unittest.TestCase):
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test_class = test
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else:
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raise TypeError("can't recognize type %r" % test)
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if getattr(test_class, '_serialrun', False):
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serial.addTest(test)
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else:
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parallel.addTest(test)
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return (serial, parallel)
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def run(self, suite):
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ser_suite, par_suite = self._split_suite(suite)
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par_suite = self._parallelize(par_suite)
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# run parallel
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cprint("starting parallel tests using %s workers" % NWORKERS,
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"green", bold=True)
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t = time.time()
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par = self._run(par_suite)
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par_elapsed = time.time() - t
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# At this point we should have N zombies (the workers), which
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# will disappear with wait().
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orphans = psutil.Process().children()
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gone, alive = psutil.wait_procs(orphans, timeout=1)
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if alive:
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cprint("alive processes %s" % alive, "red")
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reap_children()
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# run serial
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t = time.time()
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ser = self._run(ser_suite)
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ser_elapsed = time.time() - t
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# print
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if not par.wasSuccessful() and ser_suite.countTestCases() > 0:
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par.printErrors() # print them again at the bottom
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par_fails, par_errs, par_skips = map(len, (par.failures,
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par.errors,
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par.skipped))
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ser_fails, ser_errs, ser_skips = map(len, (ser.failures,
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ser.errors,
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ser.skipped))
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print(textwrap.dedent("""
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+----------+----------+----------+----------+----------+----------+
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| | total | failures | errors | skipped | time |
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+----------+----------+----------+----------+----------+----------+
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| parallel | %3s | %3s | %3s | %3s | %.2fs |
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+----------+----------+----------+----------+----------+----------+
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| serial | %3s | %3s | %3s | %3s | %.2fs |
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+----------+----------+----------+----------+----------+----------+
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""" % (par.testsRun, par_fails, par_errs, par_skips, par_elapsed,
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ser.testsRun, ser_fails, ser_errs, ser_skips, ser_elapsed)))
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print("Ran %s tests in %.3fs using %s workers" % (
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par.testsRun + ser.testsRun, par_elapsed + ser_elapsed, NWORKERS))
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ok = par.wasSuccessful() and ser.wasSuccessful()
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self._exit(ok)
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def get_runner(parallel=False):
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def warn(msg):
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cprint(msg + " Running serial tests instead.", "red")
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if parallel:
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if psutil.WINDOWS:
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warn("Can't run parallel tests on Windows.")
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elif concurrencytest is None:
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warn("concurrencytest module is not installed.")
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elif NWORKERS == 1:
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warn("Only 1 CPU available.")
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else:
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return ParallelRunner(verbosity=VERBOSITY)
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return ColouredTextRunner(verbosity=VERBOSITY)
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# Used by test_*,py modules.
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def run_from_name(name):
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if CI_TESTING:
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print_sysinfo()
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suite = TestLoader().from_name(name)
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runner = get_runner()
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runner.run(suite)
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def setup():
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psutil._set_debug(True)
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def main():
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setup()
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usage = "python3 -m psutil.tests [opts] [test-name]"
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parser = optparse.OptionParser(usage=usage, description="run unit tests")
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parser.add_option("--last-failed",
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action="store_true", default=False,
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help="only run last failed tests")
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parser.add_option("--parallel",
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action="store_true", default=False,
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help="run tests in parallel")
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opts, args = parser.parse_args()
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if not opts.last_failed:
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safe_rmpath(FAILED_TESTS_FNAME)
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# loader
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loader = TestLoader()
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if args:
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if len(args) > 1:
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parser.print_usage()
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return sys.exit(1)
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else:
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suite = loader.from_name(args[0])
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elif opts.last_failed:
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suite = loader.last_failed()
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else:
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suite = loader.all()
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if CI_TESTING:
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print_sysinfo()
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runner = get_runner(opts.parallel)
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runner.run(suite)
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if __name__ == '__main__':
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main()
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