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Add regression tests for VS16 after zero-width chars in split_graphemes #4007

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Merged
willmcgugan merged 2 commits into from
Feb 19, 2026
Merged

Add regression tests for VS16 after zero-width chars in split_graphemes #4007

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Copilot Feb 19, 2026
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Add regression tests for VS16 after zero-width chars in split_graphemes
Copilot Feb 19, 2026
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10 changes: 10 additions & 0 deletions tests/test_cells.py
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Original file line number Diff line number Diff line change
Expand Up @@ -209,6 +209,16 @@ def test_is_single_cell_widths() -> None:
[(0, 2, 0)],
0,
), # Two ZWJs should have zero width
(
"\x1b\ufe0f",
[(0, 2, 0)],
0,
), # VS16 after escape (zero-width, doesn't set last_measured_character) should have zero width
(
"\u200d\ufe0f",
[(0, 2, 0)],
0,
), # VS16 after ZWJ (zero-width, doesn't set last_measured_character) should have zero width
],
)
def test_split_graphemes(
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