def test_simple(self):
p = Pipe()
# default constructor
self.assertTrue(isinstance(p, io.RawIOBase))
self.assertFalse(p.closed)
try:
p.fileno()
self.fail("fileno should raise IOError")
except IOError:
pass
self.assertFalse(p.isatty())
self.assertTrue(p.readable())
self.assertFalse(p.seekable())
self.assertTrue(p.writable())
# now for our custom attributes
self.assertTrue(p.readblocking())
self.assertTrue(p.writeblocking())
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE)
self.assertFalse(p.canread())
# now try a quick read and write test
data = b"The quick brown fox jumped over the lazy dog"
wlen = p.write(data)
self.assertTrue(wlen == len(data))
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE - len(data))
self.assertTrue(p.canread())
self.assertTrue(p.read(3) == data[:3])
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE - len(data) + 3)
self.assertTrue(p.canread())
# now deal with EOF conditions
p.write_eof()
try:
p.write(b"extra")
self.fail("write past EOF")
except IOError:
pass
try:
p.canwrite()
self.fail("canwrite called past EOF")
except IOError:
pass
self.assertTrue(p.canread(), "But can still read")
self.assertFalse(p.closed)
self.assertTrue(p.readall() == data[3:])
self.assertTrue(p.canread(), "Can still read")
self.assertTrue(p.read(3) == b'')
self.assertTrue(len(p.read()) == 0)
self.assertTrue(len(p.readall()) == 0)
p.close()
self.assertTrue(p.closed)
try:
p.canread()
self.fail("canread called on closed pipe")
except IOError:
pass
def test_simple(self):
p = Pipe()
# default constructor
self.assertTrue(isinstance(p, io.RawIOBase))
self.assertFalse(p.closed)
try:
p.fileno()
self.fail("fileno should raise IOError")
except IOError:
pass
self.assertFalse(p.isatty())
self.assertTrue(p.readable())
self.assertFalse(p.seekable())
self.assertTrue(p.writable())
# now for our custom attributes
self.assertTrue(p.readblocking())
self.assertTrue(p.writeblocking())
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE)
self.assertFalse(p.canread())
# now try a quick read and write test
data = b"The quick brown fox jumped over the lazy dog"
wlen = p.write(data)
self.assertTrue(wlen == len(data))
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE - len(data))
self.assertTrue(p.canread())
self.assertTrue(p.read(3) == data[:3])
self.assertTrue(p.canwrite() == io.DEFAULT_BUFFER_SIZE - len(data) + 3)
self.assertTrue(p.canread())
# now deal with EOF conditions
p.write_eof()
try:
p.write(b"extra")
self.fail("write past EOF")
except IOError:
pass
try:
p.canwrite()
self.fail("canwrite called past EOF")
except IOError:
pass
self.assertTrue(p.canread(), "But can still read")
self.assertFalse(p.closed)
self.assertTrue(p.readall() == data[3:])
self.assertTrue(p.canread(), "Can still read")
self.assertTrue(p.read(3) == b'')
self.assertTrue(len(p.read()) == 0)
self.assertTrue(len(p.readall()) == 0)
p.close()
self.assertTrue(p.closed)
try:
p.canread()
self.fail("canread called on closed pipe")
except IOError:
pass
def test_readall(self):
p = Pipe(timeout=1, bsize=10, rblocking=False)
p.write(b"123")
# readall should block and timeout
try:
data = p.readall()
self.fail("blocked readall returned: %s" % data)
except IOError as e:
self.assertTrue(io_timedout(e))
def test_readall(self):
p = Pipe(timeout=1, bsize=10, rblocking=False)
p.write(b"123")
# readall should block and timeout
try:
data = p.readall()
self.fail("blocked readall returned: %s" % data)
except IOError as e:
self.assertTrue(io_timedout(e))
