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from unittest.mock import patch, MagicMock
from paramiko import Channel, ChannelFile, ChannelStderrFile, ChannelStdinFile
class ChannelFileBase(object):
@patch("paramiko.channel.ChannelFile._set_mode")
def test_defaults_to_unbuffered_reading(self, setmode):
self.klass(Channel(None))
setmode.assert_called_once_with("r", -1)
@patch("paramiko.channel.ChannelFile._set_mode")
def test_can_override_mode_and_bufsize(self, setmode):
self.klass(Channel(None), mode="w", bufsize=25)
setmode.assert_called_once_with("w", 25)
def test_read_recvs_from_channel(self):
chan = MagicMock()
cf = self.klass(chan)
cf.read(100)
chan.recv.assert_called_once_with(100)
def test_write_calls_channel_sendall(self):
chan = MagicMock()
cf = self.klass(chan, mode="w")
cf.write("ohai")
chan.sendall.assert_called_once_with(b"ohai")
class TestChannelFile(ChannelFileBase):
klass = ChannelFile
class TestChannelStderrFile(object):
def test_read_calls_channel_recv_stderr(self):
chan = MagicMock()
cf = ChannelStderrFile(chan)
cf.read(100)
chan.recv_stderr.assert_called_once_with(100)
def test_write_calls_channel_sendall(self):
chan = MagicMock()
cf = ChannelStderrFile(chan, mode="w")
cf.write("ohai")
chan.sendall_stderr.assert_called_once_with(b"ohai")
class TestChannelStdinFile(ChannelFileBase):
klass = ChannelStdinFile
def test_close_calls_channel_shutdown_write(self):
chan = MagicMock()
cf = ChannelStdinFile(chan, mode="wb")
cf.flush = MagicMock()
cf.close()
# Sanity check that we still call BufferedFile.close()
cf.flush.assert_called_once_with()
assert cf._closed is True
# Actual point of test
chan.shutdown_write.assert_called_once_with()
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