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import unittest
import cStringIO
from test import test_support
class TestUnicodeInput(unittest.TestCase):
def test_differences_handling_unicode(self):
# Test for the "feature" described on #1089.
#
# Basically, StringIO returns unicode objects if you feed it unicode,
# but cStringIO don't. This should change in future versions of
# CPython and Jython.
self.assertEqual(u'foo', cStringIO.StringIO(u'foo').read())
self.assertEqual('foo', cStringIO.StringIO(u'foo').read())
def test_unicode_encode_error(self):
# See issue #2527
uc = u'\u4e2d\u6587'
self.assertRaises(UnicodeEncodeError, lambda: cStringIO.StringIO(uc))
class TestWrite(unittest.TestCase):
def test_write_seek_write(self):
f = cStringIO.StringIO()
f.write('hello')
f.seek(2)
f.write('hi')
self.assertEquals(f.getvalue(), 'hehio')
#XXX: this should get pushed to CPython's test_StringIO
def test_write_past_end(self):
f = cStringIO.StringIO()
f.write("abcdef")
f.seek(10)
f.write("uvwxyz")
self.assertEqual(f.getvalue(), 'abcdef\x00\x00\x00\x00uvwxyz')
def test_write_seek_back_then_write(self):
# http://bugs.jython.org/issue2324
s = "abcdef"
for i in xrange(len(s)):
f = cStringIO.StringIO()
f.write(s)
f.seek(i)
f.write("x" * 47)
self.assertEqual(f.getvalue(), s[:i] + ("x" * 47))
class TestGetValueAfterClose(unittest.TestCase):
# This test, or something like it, should be really be pushed upstream
def test_getvalue_after_close(self):
f = cStringIO.StringIO('hello')
f.getvalue()
f.close()
try:
f.getvalue()
except ValueError:
pass
else:
self.fail("cStringIO.StringIO: getvalue() after close() should have raised ValueError")
def test_main():
test_support.run_unittest(TestUnicodeInput)
test_support.run_unittest(TestWrite)
test_support.run_unittest(TestGetValueAfterClose)
if __name__ == '__main__':
test_main()
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