def test_seek_on_buffered_pipe (self):
f = GreenPipe(self.tempdir + "/TestFile", 'w+', 1024)
self.assertEquals(f.tell(), 0)
f.seek(0, 2)
self.assertEquals(f.tell(), 0)
f.write('1234567890')
f.seek(0, 2)
self.assertEquals(f.tell(), 10)
f.seek(0)
value = f.read(1)
self.assertEqual(value, '1')
self.assertEquals(f.tell(), 1)
value = f.read(1)
self.assertEqual(value, '2')
self.assertEquals(f.tell(), 2)
f.seek(0, 1)
self.assertEqual(f.readline(), '34567890')
f.seek(0)
self.assertEqual(f.readline(), '1234567890')
f.seek(0, 2)
self.assertEqual(f.readline(), '')
def test_seek_on_buffered_pipe(self):
f = GreenPipe(self.tempdir + "/TestFile", 'w+', 1024)
self.assertEquals(f.tell(), 0)
f.seek(0, 2)
self.assertEquals(f.tell(), 0)
f.write('1234567890')
f.seek(0, 2)
self.assertEquals(f.tell(), 10)
f.seek(0)
value = f.read(1)
self.assertEqual(value, '1')
self.assertEquals(f.tell(), 1)
value = f.read(1)
self.assertEqual(value, '2')
self.assertEquals(f.tell(), 2)
f.seek(0, 1)
self.assertEqual(f.readline(), '34567890')
f.seek(0)
self.assertEqual(f.readline(), '1234567890')
f.seek(0, 2)
self.assertEqual(f.readline(), '')
def test_pipe_writes_large_messages (self):
r, w = os.pipe()
r = GreenPipe(r)
w = GreenPipe(w, 'w')
large_message = "".join([1024 * chr(i) for i in xrange(65)])
def writer ():
w.write(large_message)
w.close()
gt = spawn(writer)
for i in xrange(65):
buf = r.read(1024)
expected = 1024 * chr(i)
self.assertEquals(buf, expected,
"expected=%r..%r, found=%r..%r iter=%d"
% (expected[:4], expected[-4:], buf[:4], buf[-4:], i))
gt.wait()
def test_pipe_writes_large_messages(self):
r, w = os.pipe()
r = GreenPipe(r)
w = GreenPipe(w, 'w')
large_message = "".join([1024 * chr(i) for i in xrange(65)])
def writer():
w.write(large_message)
w.close()
gt = spawn(writer)
for i in xrange(65):
buf = r.read(1024)
expected = 1024 * chr(i)
self.assertEquals(
buf, expected, "expected=%r..%r, found=%r..%r iter=%d" %
(expected[:4], expected[-4:], buf[:4], buf[-4:], i))
gt.wait()