mirror of https://github.com/python/cpython
64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
# As a test suite for the os module, this is woefully inadequate, but this
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# does add tests for a few functions which have been determined to be more
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# more portable than they had been thought to be.
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import os
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import unittest
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import warnings
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from test_support import TESTFN, run_unittest
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class TemporaryFileTests(unittest.TestCase):
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def setUp(self):
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self.files = []
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os.mkdir(TESTFN)
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def tearDown(self):
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for name in self.files:
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os.unlink(name)
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os.rmdir(TESTFN)
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def check_tempfile(self, name):
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# make sure it doesn't already exist:
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self.failIf(os.path.exists(name),
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"file already exists for temporary file")
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# make sure we can create the file
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open(name, "w")
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self.files.append(name)
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def test_tempnam(self):
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if not hasattr(os, "tempnam"):
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return
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warnings.filterwarnings("ignore", "tempnam", RuntimeWarning,
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"test_os")
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self.check_tempfile(os.tempnam())
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name = os.tempnam(TESTFN)
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self.check_tempfile(name)
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name = os.tempnam(TESTFN, "pfx")
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self.assert_(os.path.basename(name)[:3] == "pfx")
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self.check_tempfile(name)
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def test_tmpfile(self):
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if not hasattr(os, "tmpfile"):
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return
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fp = os.tmpfile()
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fp.write("foobar")
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fp.seek(0,0)
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s = fp.read()
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fp.close()
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self.assert_(s == "foobar")
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def test_tmpnam(self):
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if not hasattr(os, "tmpnam"):
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return
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warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning,
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"test_os")
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self.check_tempfile(os.tmpnam())
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run_unittest(TemporaryFileTests)
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