47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
"""Tests for the CJK-aware composer cursor offset."""
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import pytest
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from textual.app import App, ComposeResult
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from deerflow.tui.widgets.composer import ComposerInput
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class _Harness(App):
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def compose(self) -> ComposeResult:
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yield ComposerInput(id="c")
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@pytest.mark.asyncio
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async def test_cursor_offset_after_cjk_has_no_off_by_one():
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app = _Harness()
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async with app.run_test() as pilot:
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await pilot.pause()
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comp = app.query_one("#c", ComposerInput)
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comp.value = "总结一下" # 4 wide chars = 8 cells
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comp.cursor_position = len(comp.value)
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# Stock Input would report 9 here (unconditional +1); the fix reports 8,
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# so the hardware/IME cursor sits exactly after the last character.
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assert comp._cursor_offset == 8
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@pytest.mark.asyncio
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async def test_cursor_offset_mid_text_is_unchanged():
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app = _Harness()
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async with app.run_test() as pilot:
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await pilot.pause()
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comp = app.query_one("#c", ComposerInput)
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comp.value = "总结一下"
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comp.cursor_position = 3 # not at end -> 3 wide chars = 6 cells
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assert comp._cursor_offset == 6
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@pytest.mark.asyncio
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async def test_cursor_offset_ascii_end_is_exact():
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app = _Harness()
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async with app.run_test() as pilot:
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await pilot.pause()
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comp = app.query_one("#c", ComposerInput)
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comp.value = "abcd"
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comp.cursor_position = 4
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assert comp._cursor_offset == 4
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