/usr/lib/python2.7/dist-packages/werkzeug/testsuite/contrib/iterio.py is in python-werkzeug 0.9.4+dfsg-1.1ubuntu2.1.
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"""
werkzeug.testsuite.iterio
~~~~~~~~~~~~~~~~~~~~~~~~~
Tests the iterio object.
:copyright: (c) 2013 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
"""
import unittest
from functools import partial
from werkzeug.testsuite import WerkzeugTestCase
from werkzeug.contrib.iterio import IterIO, greenlet
class IterOTestSuite(WerkzeugTestCase):
def test_basic_native(self):
io = IterIO(["Hello", "World", "1", "2", "3"])
self.assert_equal(io.tell(), 0)
self.assert_equal(io.read(2), "He")
self.assert_equal(io.tell(), 2)
self.assert_equal(io.read(3), "llo")
self.assert_equal(io.tell(), 5)
io.seek(0)
self.assert_equal(io.read(5), "Hello")
self.assert_equal(io.tell(), 5)
self.assert_equal(io._buf, "Hello")
self.assert_equal(io.read(), "World123")
self.assert_equal(io.tell(), 13)
io.close()
assert io.closed
io = IterIO(["Hello\n", "World!"])
self.assert_equal(io.readline(), 'Hello\n')
self.assert_equal(io._buf, 'Hello\n')
self.assert_equal(io.read(), 'World!')
self.assert_equal(io._buf, 'Hello\nWorld!')
self.assert_equal(io.tell(), 12)
io.seek(0)
self.assert_equal(io.readlines(), ['Hello\n', 'World!'])
io = IterIO(["foo\n", "bar"])
io.seek(-4, 2)
self.assert_equal(io.read(4), '\nbar')
self.assert_raises(IOError, io.seek, 2, 100)
io.close()
self.assert_raises(ValueError, io.read)
def test_basic_bytes(self):
io = IterIO([b"Hello", b"World", b"1", b"2", b"3"])
self.assert_equal(io.tell(), 0)
self.assert_equal(io.read(2), b"He")
self.assert_equal(io.tell(), 2)
self.assert_equal(io.read(3), b"llo")
self.assert_equal(io.tell(), 5)
io.seek(0)
self.assert_equal(io.read(5), b"Hello")
self.assert_equal(io.tell(), 5)
self.assert_equal(io._buf, b"Hello")
self.assert_equal(io.read(), b"World123")
self.assert_equal(io.tell(), 13)
io.close()
assert io.closed
io = IterIO([b"Hello\n", b"World!"])
self.assert_equal(io.readline(), b'Hello\n')
self.assert_equal(io._buf, b'Hello\n')
self.assert_equal(io.read(), b'World!')
self.assert_equal(io._buf, b'Hello\nWorld!')
self.assert_equal(io.tell(), 12)
io.seek(0)
self.assert_equal(io.readlines(), [b'Hello\n', b'World!'])
io = IterIO([b"foo\n", b"bar"])
io.seek(-4, 2)
self.assert_equal(io.read(4), b'\nbar')
self.assert_raises(IOError, io.seek, 2, 100)
io.close()
self.assert_raises(ValueError, io.read)
def test_basic_unicode(self):
io = IterIO([u"Hello", u"World", u"1", u"2", u"3"])
self.assert_equal(io.tell(), 0)
self.assert_equal(io.read(2), u"He")
self.assert_equal(io.tell(), 2)
self.assert_equal(io.read(3), u"llo")
self.assert_equal(io.tell(), 5)
io.seek(0)
self.assert_equal(io.read(5), u"Hello")
self.assert_equal(io.tell(), 5)
self.assert_equal(io._buf, u"Hello")
self.assert_equal(io.read(), u"World123")
self.assert_equal(io.tell(), 13)
io.close()
assert io.closed
io = IterIO([u"Hello\n", u"World!"])
self.assert_equal(io.readline(), u'Hello\n')
self.assert_equal(io._buf, u'Hello\n')
self.assert_equal(io.read(), u'World!')
self.assert_equal(io._buf, u'Hello\nWorld!')
self.assert_equal(io.tell(), 12)
io.seek(0)
self.assert_equal(io.readlines(), [u'Hello\n', u'World!'])
io = IterIO([u"foo\n", u"bar"])
io.seek(-4, 2)
self.assert_equal(io.read(4), u'\nbar')
self.assert_raises(IOError, io.seek, 2, 100)
io.close()
self.assert_raises(ValueError, io.read)
def test_sentinel_cases(self):
io = IterIO([])
self.assert_strict_equal(io.read(), '')
io = IterIO([], b'')
self.assert_strict_equal(io.read(), b'')
io = IterIO([], u'')
self.assert_strict_equal(io.read(), u'')
io = IterIO([])
self.assert_strict_equal(io.read(), '')
io = IterIO([b''])
self.assert_strict_equal(io.read(), b'')
io = IterIO([u''])
self.assert_strict_equal(io.read(), u'')
io = IterIO([])
self.assert_strict_equal(io.readline(), '')
io = IterIO([], b'')
self.assert_strict_equal(io.readline(), b'')
io = IterIO([], u'')
self.assert_strict_equal(io.readline(), u'')
io = IterIO([])
self.assert_strict_equal(io.readline(), '')
io = IterIO([b''])
self.assert_strict_equal(io.readline(), b'')
io = IterIO([u''])
self.assert_strict_equal(io.readline(), u'')
class IterITestSuite(WerkzeugTestCase):
def test_basic(self):
def producer(out):
out.write('1\n')
out.write('2\n')
out.flush()
out.write('3\n')
iterable = IterIO(producer)
self.assert_equal(next(iterable), '1\n2\n')
self.assert_equal(next(iterable), '3\n')
self.assert_raises(StopIteration, next, iterable)
def test_sentinel_cases(self):
def producer_dummy_flush(out):
out.flush()
iterable = IterIO(producer_dummy_flush)
self.assert_strict_equal(next(iterable), '')
def producer_empty(out):
pass
iterable = IterIO(producer_empty)
self.assert_raises(StopIteration, next, iterable)
iterable = IterIO(producer_dummy_flush, b'')
self.assert_strict_equal(next(iterable), b'')
iterable = IterIO(producer_dummy_flush, u'')
self.assert_strict_equal(next(iterable), u'')
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(IterOTestSuite))
if greenlet is not None:
suite.addTest(unittest.makeSuite(IterITestSuite))
return suite
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