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121 lines
4.4 KiB
Python
121 lines
4.4 KiB
Python
"""Code coverage measurement for Python.
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Ned Batchelder
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http://nedbatchelder.com/code/coverage
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"""
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from coverage.version import __version__, __url__
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from coverage.control import coverage, process_startup
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from coverage.data import CoverageData
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from coverage.cmdline import main, CoverageScript
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from coverage.misc import CoverageException
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# Module-level functions. The original API to this module was based on
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# functions defined directly in the module, with a singleton of the coverage()
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# class. That design hampered programmability, so the current api uses
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# explicitly-created coverage objects. But for backward compatibility, here we
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# define the top-level functions to create the singleton when they are first
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# called.
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# Singleton object for use with module-level functions. The singleton is
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# created as needed when one of the module-level functions is called.
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_the_coverage = None
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def _singleton_method(name):
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"""Return a function to the `name` method on a singleton `coverage` object.
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The singleton object is created the first time one of these functions is
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called.
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"""
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# Disable pylint msg W0612, because a bunch of variables look unused, but
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# they're accessed via locals().
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# pylint: disable=W0612
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def wrapper(*args, **kwargs):
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"""Singleton wrapper around a coverage method."""
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global _the_coverage
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if not _the_coverage:
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_the_coverage = coverage(auto_data=True)
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return getattr(_the_coverage, name)(*args, **kwargs)
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import inspect
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meth = getattr(coverage, name)
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args, varargs, kw, defaults = inspect.getargspec(meth)
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argspec = inspect.formatargspec(args[1:], varargs, kw, defaults)
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docstring = meth.__doc__
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wrapper.__doc__ = ("""\
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A first-use-singleton wrapper around coverage.%(name)s.
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This wrapper is provided for backward compatibility with legacy code.
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New code should use coverage.%(name)s directly.
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%(name)s%(argspec)s:
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%(docstring)s
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""" % locals()
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)
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return wrapper
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# Define the module-level functions.
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use_cache = _singleton_method('use_cache')
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start = _singleton_method('start')
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stop = _singleton_method('stop')
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erase = _singleton_method('erase')
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exclude = _singleton_method('exclude')
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analysis = _singleton_method('analysis')
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analysis2 = _singleton_method('analysis2')
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report = _singleton_method('report')
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annotate = _singleton_method('annotate')
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# On Windows, we encode and decode deep enough that something goes wrong and
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# the encodings.utf_8 module is loaded and then unloaded, I don't know why.
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# Adding a reference here prevents it from being unloaded. Yuk.
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import encodings.utf_8
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# Because of the "from coverage.control import fooey" lines at the top of the
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# file, there's an entry for coverage.coverage in sys.modules, mapped to None.
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# This makes some inspection tools (like pydoc) unable to find the class
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# coverage.coverage. So remove that entry.
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import sys
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try:
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del sys.modules['coverage.coverage']
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except KeyError:
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pass
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# COPYRIGHT AND LICENSE
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#
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# Copyright 2001 Gareth Rees. All rights reserved.
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# Copyright 2004-2013 Ned Batchelder. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the
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# distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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# DAMAGE.
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