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274 lines
11 KiB
Python
274 lines
11 KiB
Python
"""Unittest main program"""
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import sys
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import os
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import types
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from . import loader, runner
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from .signals import installHandler
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__unittest = True
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FAILFAST = " -f, --failfast Stop on first failure\n"
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CATCHBREAK = " -c, --catch Catch control-C and display results\n"
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BUFFEROUTPUT = " -b, --buffer Buffer stdout and stderr during test runs\n"
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USAGE_AS_MAIN = """\
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Usage: %(progName)s [options] [tests]
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Options:
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-h, --help Show this message
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-v, --verbose Verbose output
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-q, --quiet Minimal output
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%(failfast)s%(catchbreak)s%(buffer)s
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Examples:
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%(progName)s test_module - run tests from test_module
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%(progName)s module.TestClass - run tests from module.TestClass
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%(progName)s module.Class.test_method - run specified test method
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[tests] can be a list of any number of test modules, classes and test
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methods.
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Alternative Usage: %(progName)s discover [options]
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Options:
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-v, --verbose Verbose output
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%(failfast)s%(catchbreak)s%(buffer)s -s directory Directory to start discovery ('.' default)
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-p pattern Pattern to match test files ('test*.py' default)
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-t directory Top level directory of project (default to
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start directory)
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For test discovery all test modules must be importable from the top
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level directory of the project.
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"""
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USAGE_FROM_MODULE = """\
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Usage: %(progName)s [options] [test] [...]
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Options:
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-h, --help Show this message
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-v, --verbose Verbose output
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-q, --quiet Minimal output
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%(failfast)s%(catchbreak)s%(buffer)s
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Examples:
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%(progName)s - run default set of tests
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%(progName)s MyTestSuite - run suite 'MyTestSuite'
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%(progName)s MyTestCase.testSomething - run MyTestCase.testSomething
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%(progName)s MyTestCase - run all 'test*' test methods
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in MyTestCase
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"""
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def _convert_name(name):
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# on Linux / Mac OS X 'foo.PY' is not importable, but on
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# Windows it is. Simpler to do a case insensitive match
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# a better check would be to check that the name is a
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# valid Python module name.
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if os.path.isfile(name) and name.lower().endswith('.py'):
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if os.path.isabs(name):
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rel_path = os.path.relpath(name, os.getcwd())
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if os.path.isabs(rel_path) or rel_path.startswith(os.pardir):
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return name
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name = rel_path
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# on Windows both '\' and '/' are used as path
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# separators. Better to replace both than rely on os.path.sep
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return name[:-3].replace('\\', '.').replace('/', '.')
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return name
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def _convert_names(names):
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return [_convert_name(name) for name in names]
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class TestProgram(object):
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"""A command-line program that runs a set of tests; this is primarily
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for making test modules conveniently executable.
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"""
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USAGE = USAGE_FROM_MODULE
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# defaults for testing
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failfast = catchbreak = buffer = progName = warnings = None
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def __init__(self, module='__main__', defaultTest=None, argv=None,
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testRunner=None, testLoader=loader.defaultTestLoader,
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exit=True, verbosity=1, failfast=None, catchbreak=None,
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buffer=None, warnings=None):
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if isinstance(module, str):
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self.module = __import__(module)
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for part in module.split('.')[1:]:
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self.module = getattr(self.module, part)
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else:
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self.module = module
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if argv is None:
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argv = sys.argv
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self.exit = exit
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self.failfast = failfast
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self.catchbreak = catchbreak
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self.verbosity = verbosity
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self.buffer = buffer
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if warnings is None and not sys.warnoptions:
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# even if DreprecationWarnings are ignored by default
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# print them anyway unless other warnings settings are
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# specified by the warnings arg or the -W python flag
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self.warnings = 'default'
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else:
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# here self.warnings is set either to the value passed
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# to the warnings args or to None.
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# If the user didn't pass a value self.warnings will
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# be None. This means that the behavior is unchanged
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# and depends on the values passed to -W.
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self.warnings = warnings
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self.defaultTest = defaultTest
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self.testRunner = testRunner
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self.testLoader = testLoader
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self.progName = os.path.basename(argv[0])
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self.parseArgs(argv)
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self.runTests()
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def usageExit(self, msg=None):
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if msg:
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print(msg)
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usage = {'progName': self.progName, 'catchbreak': '', 'failfast': '',
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'buffer': ''}
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if self.failfast != False:
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usage['failfast'] = FAILFAST
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if self.catchbreak != False:
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usage['catchbreak'] = CATCHBREAK
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if self.buffer != False:
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usage['buffer'] = BUFFEROUTPUT
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print(self.USAGE % usage)
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sys.exit(2)
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def parseArgs(self, argv):
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if ((len(argv) > 1 and argv[1].lower() == 'discover') or
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(len(argv) == 1 and self.module is None)):
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self._do_discovery(argv[2:])
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return
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import getopt
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long_opts = ['help', 'verbose', 'quiet', 'failfast', 'catch', 'buffer']
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try:
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options, args = getopt.getopt(argv[1:], 'hHvqfcb', long_opts)
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except getopt.error as msg:
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self.usageExit(msg)
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return
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for opt, value in options:
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if opt in ('-h','-H','--help'):
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self.usageExit()
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if opt in ('-q','--quiet'):
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self.verbosity = 0
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if opt in ('-v','--verbose'):
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self.verbosity = 2
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if opt in ('-f','--failfast'):
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if self.failfast is None:
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self.failfast = True
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# Should this raise an exception if -f is not valid?
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if opt in ('-c','--catch'):
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if self.catchbreak is None:
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self.catchbreak = True
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# Should this raise an exception if -c is not valid?
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if opt in ('-b','--buffer'):
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if self.buffer is None:
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self.buffer = True
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# Should this raise an exception if -b is not valid?
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if len(args) == 0 and self.module is None:
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# this allows "python -m unittest -v" to still work for
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# test discovery. This means -c / -b / -v / -f options will
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# be handled twice, which is harmless but not ideal.
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self._do_discovery(argv[1:])
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return
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if len(args) == 0 and self.defaultTest is None:
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# createTests will load tests from self.module
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self.testNames = None
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elif len(args) > 0:
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self.testNames = _convert_names(args)
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if __name__ == '__main__':
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# to support python -m unittest ...
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self.module = None
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else:
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self.testNames = (self.defaultTest,)
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self.createTests()
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def createTests(self):
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if self.testNames is None:
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self.test = self.testLoader.loadTestsFromModule(self.module)
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else:
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self.test = self.testLoader.loadTestsFromNames(self.testNames,
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self.module)
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def _do_discovery(self, argv, Loader=loader.TestLoader):
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# handle command line args for test discovery
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self.progName = '%s discover' % self.progName
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import optparse
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parser = optparse.OptionParser()
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parser.prog = self.progName
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parser.add_option('-v', '--verbose', dest='verbose', default=False,
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help='Verbose output', action='store_true')
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if self.failfast != False:
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parser.add_option('-f', '--failfast', dest='failfast', default=False,
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help='Stop on first fail or error',
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action='store_true')
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if self.catchbreak != False:
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parser.add_option('-c', '--catch', dest='catchbreak', default=False,
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help='Catch ctrl-C and display results so far',
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action='store_true')
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if self.buffer != False:
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parser.add_option('-b', '--buffer', dest='buffer', default=False,
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help='Buffer stdout and stderr during tests',
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action='store_true')
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parser.add_option('-s', '--start-directory', dest='start', default='.',
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help="Directory to start discovery ('.' default)")
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parser.add_option('-p', '--pattern', dest='pattern', default='test*.py',
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help="Pattern to match tests ('test*.py' default)")
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parser.add_option('-t', '--top-level-directory', dest='top', default=None,
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help='Top level directory of project (defaults to start directory)')
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options, args = parser.parse_args(argv)
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if len(args) > 3:
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self.usageExit()
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for name, value in zip(('start', 'pattern', 'top'), args):
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setattr(options, name, value)
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# only set options from the parsing here
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# if they weren't set explicitly in the constructor
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if self.failfast is None:
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self.failfast = options.failfast
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if self.catchbreak is None:
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self.catchbreak = options.catchbreak
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if self.buffer is None:
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self.buffer = options.buffer
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if options.verbose:
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self.verbosity = 2
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start_dir = options.start
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pattern = options.pattern
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top_level_dir = options.top
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loader = Loader()
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self.test = loader.discover(start_dir, pattern, top_level_dir)
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def runTests(self):
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if self.catchbreak:
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installHandler()
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if self.testRunner is None:
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self.testRunner = runner.TextTestRunner
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if isinstance(self.testRunner, type):
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try:
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testRunner = self.testRunner(verbosity=self.verbosity,
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failfast=self.failfast,
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buffer=self.buffer,
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warnings=self.warnings)
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except TypeError:
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# didn't accept the verbosity, buffer or failfast arguments
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testRunner = self.testRunner()
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else:
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# it is assumed to be a TestRunner instance
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testRunner = self.testRunner
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self.result = testRunner.run(self.test)
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if self.exit:
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sys.exit(not self.result.wasSuccessful())
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main = TestProgram
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