import pytest

from fenrirscreenreader.screenDriver.ptyDriver import Terminal


class DummyProcessInput:
    def __init__(self):
        self.data = []

    def write(self, data):
        self.data.append(data)


@pytest.mark.unit
def test_csi_sequences_with_intermediate_characters_do_not_render_final_byte():
    terminal = Terminal(10, 3, DummyProcessInput())

    terminal.feed(b"\x1b[2026$p\x1b[2048$pX")
    screen = terminal.get_screen_content()

    assert screen["text"].splitlines()[0] == "X         "
    assert "p" not in screen["text"]