A method to create test-specific temporary directories

util.py

# Copyright (c) 2009 Inoi oy

# 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
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# Software is furnished to do so, subject to the following
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# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.

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# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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def mkdir(*a, **kw):
    try:
        os.mkdir(*a, **kw)
    except OSError, e:
        if e.errno == errno.EEXIST:
            pass
        else:
            raise

def find_test_name():
    try:
        from nose.case import Test
        from nose.suite import ContextSuite
        import types
        def get_nose_name(its_self):
            if isinstance(its_self, Test):
                file_, module, class_ = its_self.address()
                name = '%s:%s' % (module, class_)
                return name
            elif isinstance(its_self, ContextSuite):
                if isinstance(its_self.context, types.ModuleType):
                    return its_self.context.__name__
    except ImportError:
        # older nose
        from nose.case import FunctionTestCase, MethodTestCase
        from nose.suite import TestModule
        from nose.util import test_address
        def get_nose_name(its_self):
            if isinstance(its_self, (FunctionTestCase, MethodTestCase)):
                file_, module, class_ = test_address(its_self)
                name = '%s:%s' % (module, class_)
                return name
            elif isinstance(its_self, TestModule):
                return its_self.moduleName

    i = 0
    while True:
        i += 1
        frame = sys._getframe(i)
        # kludge, hunt callers upwards until we find our nose
        if (frame.f_code.co_varnames
            and frame.f_code.co_varnames[0] == 'self'):
            its_self = frame.f_locals['self']
            name = get_nose_name(its_self)
            if name is not None:
                return name

def maketemp():
    tmp = os.path.join(os.path.dirname(__file__), 'tmp')
    mkdir(tmp)

    name = find_test_name()
    tmp = os.path.join(tmp, name)
    try:
        shutil.rmtree(tmp)
    except OSError, e:
        if e.errno == errno.ENOENT:
            pass
        else:
            raise
    os.mkdir(tmp)
    return tmp