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515a74fbf9
This caused pydoc to fail when there was a zip file in sys.path. Patch contributed by Amaury Forgeot d'Arc.
136 lines
4.2 KiB
Python
136 lines
4.2 KiB
Python
from test.support import run_unittest
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import unittest
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import sys
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import imp
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import pkgutil
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import os
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import os.path
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import tempfile
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import shutil
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import zipfile
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class PkgutilTests(unittest.TestCase):
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def setUp(self):
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self.dirname = tempfile.mkdtemp()
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sys.path.insert(0, self.dirname)
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def tearDown(self):
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del sys.path[0]
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shutil.rmtree(self.dirname)
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def test_getdata_filesys(self):
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pkg = 'test_getdata_filesys'
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# Include a LF and a CRLF, to test that binary data is read back
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RESOURCE_DATA = b'Hello, world!\nSecond line\r\nThird line'
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# Make a package with some resources
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package_dir = os.path.join(self.dirname, pkg)
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os.mkdir(package_dir)
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# Empty init.py
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f = open(os.path.join(package_dir, '__init__.py'), "wb")
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f.close()
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# Resource files, res.txt, sub/res.txt
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f = open(os.path.join(package_dir, 'res.txt'), "wb")
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f.write(RESOURCE_DATA)
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f.close()
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os.mkdir(os.path.join(package_dir, 'sub'))
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f = open(os.path.join(package_dir, 'sub', 'res.txt'), "wb")
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f.write(RESOURCE_DATA)
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f.close()
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# Check we can read the resources
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res1 = pkgutil.get_data(pkg, 'res.txt')
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self.assertEqual(res1, RESOURCE_DATA)
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res2 = pkgutil.get_data(pkg, 'sub/res.txt')
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self.assertEqual(res2, RESOURCE_DATA)
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del sys.modules[pkg]
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def test_getdata_zipfile(self):
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zip = 'test_getdata_zipfile.zip'
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pkg = 'test_getdata_zipfile'
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# Include a LF and a CRLF, to test that binary data is read back
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RESOURCE_DATA = b'Hello, world!\nSecond line\r\nThird line'
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# Make a package with some resources
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zip_file = os.path.join(self.dirname, zip)
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z = zipfile.ZipFile(zip_file, 'w')
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# Empty init.py
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z.writestr(pkg + '/__init__.py', "")
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# Resource files, res.txt, sub/res.txt
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z.writestr(pkg + '/res.txt', RESOURCE_DATA)
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z.writestr(pkg + '/sub/res.txt', RESOURCE_DATA)
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z.close()
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# Check we can read the resources
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sys.path.insert(0, zip_file)
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res1 = pkgutil.get_data(pkg, 'res.txt')
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self.assertEqual(res1, RESOURCE_DATA)
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res2 = pkgutil.get_data(pkg, 'sub/res.txt')
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self.assertEqual(res2, RESOURCE_DATA)
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names = []
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for loader, name, ispkg in pkgutil.iter_modules([zip_file]):
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names.append(name)
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self.assertEqual(names, ['test_getdata_zipfile'])
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del sys.path[0]
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del sys.modules[pkg]
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class PkgutilPEP302Tests(unittest.TestCase):
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class MyTestLoader(object):
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def load_module(self, fullname):
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# Create an empty module
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mod = sys.modules.setdefault(fullname, imp.new_module(fullname))
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mod.__file__ = "<%s>" % self.__class__.__name__
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mod.__loader__ = self
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# Make it a package
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mod.__path__ = []
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# Count how many times the module is reloaded
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mod.__dict__['loads'] = mod.__dict__.get('loads',0) + 1
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return mod
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def get_data(self, path):
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return "Hello, world!"
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class MyTestImporter(object):
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def find_module(self, fullname, path=None):
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return PkgutilPEP302Tests.MyTestLoader()
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def setUp(self):
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sys.meta_path.insert(0, self.MyTestImporter())
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def tearDown(self):
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del sys.meta_path[0]
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def test_getdata_pep302(self):
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# Use a dummy importer/loader
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self.assertEqual(pkgutil.get_data('foo', 'dummy'), "Hello, world!")
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del sys.modules['foo']
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def test_alreadyloaded(self):
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# Ensure that get_data works without reloading - the "loads" module
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# variable in the example loader should count how many times a reload
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# occurs.
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import foo
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self.assertEqual(foo.loads, 1)
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self.assertEqual(pkgutil.get_data('foo', 'dummy'), "Hello, world!")
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self.assertEqual(foo.loads, 1)
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del sys.modules['foo']
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def test_main():
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run_unittest(PkgutilTests, PkgutilPEP302Tests)
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# this is necessary if test is run repeated (like when finding leaks)
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import zipimport
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zipimport._zip_directory_cache.clear()
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if __name__ == '__main__':
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test_main()
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