class TestNailgunStreamReader(unittest.TestCase):
def setUp(self):
self.in_fd = FakeFile()
self.mock_socket = mock.Mock()
self.reader = NailgunStreamReader(in_fd=self.in_fd,
sock=self.mock_socket)
def test_stop(self):
self.assertFalse(self.reader.is_stopped)
self.reader.stop()
self.assertTrue(self.reader.is_stopped)
self.reader.run()
def test_startable(self):
self.assertTrue(inspect.ismethod(self.reader.start))
@mock.patch('select.select')
def test_run_stop_on_error(self, mock_select):
mock_select.return_value = ([], [], [self.in_fd])
self.reader.run()
self.assertTrue(self.reader.is_stopped)
self.assertEquals(mock_select.call_count, 1)
@mock.patch('os.read')
@mock.patch('select.select')
@mock.patch.object(NailgunProtocol, 'write_chunk')
def test_run_read_write(self, mock_writer, mock_select, mock_read):
mock_select.side_effect = [([self.in_fd], [], []),
([self.in_fd], [], [])]
mock_read.side_effect = [
b'A' * 300,
b'' # Simulate EOF.
]
# Exercise NailgunStreamReader.running() and .run() simultaneously.
with self.reader.running():
while not self.reader.is_stopped:
time.sleep(0.01)
self.assertTrue(self.reader.is_stopped)
mock_read.assert_called_with(-1, io.DEFAULT_BUFFER_SIZE)
self.assertEquals(mock_read.call_count, 2)
self.mock_socket.shutdown.assert_called_once_with(socket.SHUT_WR)
mock_writer.assert_has_calls([
mock.call(mock.ANY, ChunkType.STDIN, b'A' * 300),
mock.call(mock.ANY, ChunkType.STDIN_EOF)
])
def _nailgunned_stdio(self, sock):
"""Redirects stdio to the connected socket speaking the nailgun protocol."""
# Determine output tty capabilities from the environment.
_, stdout_isatty, stderr_isatty = NailgunProtocol.isatty_from_env(self._env)
# Construct a StreamReader for stdin.
stdin_reader = NailgunStreamReader(sys.stdin, sock)
# Construct StreamWriters for stdout, stderr.
streams = (
NailgunStreamWriter(sock, ChunkType.STDOUT, isatty=stdout_isatty),
NailgunStreamWriter(sock, ChunkType.STDERR, isatty=stderr_isatty),
stdin_reader
)
# Launch the stdin StreamReader and redirect stdio.
with stdin_reader.running(), stdio_as(*streams):
yield
class TestNailgunStreamReader(unittest.TestCase):
def setUp(self):
self.in_fd = FakeFile()
self.mock_socket = mock.Mock()
self.reader = NailgunStreamReader(in_fd=self.in_fd, sock=self.mock_socket)
def test_stop(self):
self.assertFalse(self.reader.is_stopped)
self.reader.stop()
self.assertTrue(self.reader.is_stopped)
self.reader.run()
def test_startable(self):
self.assertTrue(inspect.ismethod(self.reader.start))
@mock.patch("select.select")
def test_run_stop_on_error(self, mock_select):
mock_select.return_value = ([], [], [self.in_fd])
self.reader.run()
self.assertTrue(self.reader.is_stopped)
self.assertEquals(mock_select.call_count, 1)
@mock.patch("os.read")
@mock.patch("select.select")
@mock.patch.object(NailgunProtocol, "write_chunk")
def test_run_read_write(self, mock_writer, mock_select, mock_read):
mock_select.side_effect = [([self.in_fd], [], []), ([self.in_fd], [], [])]
mock_read.side_effect = [b"A" * 300, b""] # Simulate EOF.
# Exercise NailgunStreamReader.running() and .run() simultaneously.
with self.reader.running():
while not self.reader.is_stopped:
time.sleep(0.01)
self.assertTrue(self.reader.is_stopped)
mock_read.assert_called_with(-1, io.DEFAULT_BUFFER_SIZE)
self.assertEquals(mock_read.call_count, 2)
self.mock_socket.shutdown.assert_called_once_with(socket.SHUT_WR)
mock_writer.assert_has_calls(
[mock.call(mock.ANY, ChunkType.STDIN, b"A" * 300), mock.call(mock.ANY, ChunkType.STDIN_EOF)]
)
def _nailgunned_stdio(self, sock):
"""Redirects stdio to the connected socket speaking the nailgun protocol."""
# Determine output tty capabilities from the environment.
_, stdout_isatty, stderr_isatty = NailgunProtocol.isatty_from_env(
self._env)
# Construct a StreamReader for stdin.
stdin_reader = NailgunStreamReader(sys.stdin, sock)
# Construct StreamWriters for stdout, stderr.
streams = (NailgunStreamWriter(sock,
ChunkType.STDOUT,
isatty=stdout_isatty),
NailgunStreamWriter(sock,
ChunkType.STDERR,
isatty=stderr_isatty), stdin_reader)
# Launch the stdin StreamReader and redirect stdio.
with stdin_reader.running(), stdio_as(*streams):
yield
