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import pytest
from prompt_toolkit.input.vt100_parser import Vt100Parser
from prompt_toolkit.keys import Keys
class _ProcessorMock:
def __init__(self):
self.keys = []
def feed_key(self, key_press):
self.keys.append(key_press)
@pytest.fixture
def processor():
return _ProcessorMock()
@pytest.fixture
def stream(processor):
return Vt100Parser(processor.feed_key)
def test_control_keys(processor, stream):
stream.feed("\x01\x02\x10")
assert len(processor.keys) == 3
assert processor.keys[0].key == Keys.ControlA
assert processor.keys[1].key == Keys.ControlB
assert processor.keys[2].key == Keys.ControlP
assert processor.keys[0].data == "\x01"
assert processor.keys[1].data == "\x02"
assert processor.keys[2].data == "\x10"
def test_arrows(processor, stream):
stream.feed("\x1b[A\x1b[B\x1b[C\x1b[D")
assert len(processor.keys) == 4
assert processor.keys[0].key == Keys.Up
assert processor.keys[1].key == Keys.Down
assert processor.keys[2].key == Keys.Right
assert processor.keys[3].key == Keys.Left
assert processor.keys[0].data == "\x1b[A"
assert processor.keys[1].data == "\x1b[B"
assert processor.keys[2].data == "\x1b[C"
assert processor.keys[3].data == "\x1b[D"
def test_escape(processor, stream):
stream.feed("\x1bhello")
assert len(processor.keys) == 1 + len("hello")
assert processor.keys[0].key == Keys.Escape
assert processor.keys[1].key == "h"
assert processor.keys[0].data == "\x1b"
assert processor.keys[1].data == "h"
def test_special_double_keys(processor, stream):
stream.feed("\x1b[1;3D") # Should both send escape and left.
assert len(processor.keys) == 2
assert processor.keys[0].key == Keys.Escape
assert processor.keys[1].key == Keys.Left
assert processor.keys[0].data == "\x1b[1;3D"
assert processor.keys[1].data == ""
def test_flush_1(processor, stream):
# Send left key in two parts without flush.
stream.feed("\x1b")
stream.feed("[D")
assert len(processor.keys) == 1
assert processor.keys[0].key == Keys.Left
assert processor.keys[0].data == "\x1b[D"
def test_flush_2(processor, stream):
# Send left key with a 'Flush' in between.
# The flush should make sure that we process everything before as-is,
# with makes the first part just an escape character instead.
stream.feed("\x1b")
stream.flush()
stream.feed("[D")
assert len(processor.keys) == 3
assert processor.keys[0].key == Keys.Escape
assert processor.keys[1].key == "["
assert processor.keys[2].key == "D"
assert processor.keys[0].data == "\x1b"
assert processor.keys[1].data == "["
assert processor.keys[2].data == "D"
def test_meta_arrows(processor, stream):
stream.feed("\x1b\x1b[D")
assert len(processor.keys) == 2
assert processor.keys[0].key == Keys.Escape
assert processor.keys[1].key == Keys.Left
def test_control_square_close(processor, stream):
stream.feed("\x1dC")
assert len(processor.keys) == 2
assert processor.keys[0].key == Keys.ControlSquareClose
assert processor.keys[1].key == "C"
def test_invalid(processor, stream):
# Invalid sequence that has at two characters in common with other
# sequences.
stream.feed("\x1b[*")
assert len(processor.keys) == 3
assert processor.keys[0].key == Keys.Escape
assert processor.keys[1].key == "["
assert processor.keys[2].key == "*"
def test_cpr_response(processor, stream):
stream.feed("a\x1b[40;10Rb")
assert len(processor.keys) == 3
assert processor.keys[0].key == "a"
assert processor.keys[1].key == Keys.CPRResponse
assert processor.keys[2].key == "b"
def test_cpr_response_2(processor, stream):
# Make sure that the newline is not included in the CPR response.
stream.feed("\x1b[40;1R\n")
assert len(processor.keys) == 2
assert processor.keys[0].key == Keys.CPRResponse
assert processor.keys[1].key == Keys.ControlJ
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