Jean-Pierre MartineauandClaude Fable 5.1
c9f5a71ce7
Apache-2.0 does not require per-file headers, but a file lifted out of the tree carried no marking at all. One comment line, first (or right after a shebang), on every .py under meshterm/, tests/, packaging/ and scripts/, plus the extensionless SPI bridge; tests/test_spdx.py keeps a new file from landing without one. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
76 lines
3.4 KiB
Python
76 lines
3.4 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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"""Session width tests: reclaiming the terminal's final column.
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Some terminals (and prompt_toolkit's size probe on them) report the window one column
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narrower than it really is, so the frame's right border lands one short and the true last
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column sits unused. The session can report one extra column to close that gap. The wrapping
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output is pure and the resolver is a small branch, so both are assertable without a terminal.
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The default comes from the active :class:`~meshterm.platforms.Platform` (on, desktop; off,
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PicoCalc — reclaiming a phantom column on its exact-width console would tear the frame), and
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``MESHTERM_FULL_WIDTH`` remains an explicit override on top of that default either way.
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"""
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from __future__ import annotations
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from types import SimpleNamespace
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from prompt_toolkit.data_structures import Size
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from meshterm.platforms import PICOCALC, REGULAR, set_platform
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from meshterm.ui.tui.session import TuiSession, _WidthExtendedOutput
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def test_width_extended_output_reports_one_more_column() -> None:
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"""get_size() gains a column; every other attribute forwards to the wrapped output."""
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inner = SimpleNamespace(
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get_size=lambda: Size(rows=24, columns=80),
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write=lambda s: f"wrote:{s}",
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encoding="utf-8",
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)
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out = _WidthExtendedOutput(inner)
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assert out.get_size() == Size(rows=24, columns=81) # the reclaimed column
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assert out.write("x") == "wrote:x" # forwarded method
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assert out.encoding == "utf-8" # forwarded attribute
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def test_session_leaves_a_supplied_output_untouched() -> None:
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"""A test-supplied output is never wrapped — headless sizes stay exactly as set."""
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dummy = SimpleNamespace(get_size=lambda: Size(rows=10, columns=40))
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session = TuiSession(output=dummy)
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assert session._resolve_output() is dummy
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def test_session_wraps_the_real_terminal_on_regular(monkeypatch) -> None:
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"""No supplied output + REGULAR (today's default) → the real terminal is width-extended."""
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fake = SimpleNamespace(get_size=lambda: Size(rows=30, columns=100))
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monkeypatch.setattr("prompt_toolkit.output.defaults.create_output", lambda: fake)
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monkeypatch.delenv("MESHTERM_FULL_WIDTH", raising=False)
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set_platform(REGULAR)
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out = TuiSession()._resolve_output()
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assert isinstance(out, _WidthExtendedOutput)
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assert out.get_size() == Size(rows=30, columns=101)
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def test_session_leaves_the_bare_terminal_on_picocalc(monkeypatch) -> None:
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"""PICOCALC's exact-width console → no reclaim: a phantom column would tear the frame."""
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monkeypatch.delenv("MESHTERM_FULL_WIDTH", raising=False)
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set_platform(PICOCALC)
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assert TuiSession()._resolve_output() is None
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def test_env_override_forces_reclaim_on_despite_picocalc(monkeypatch) -> None:
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"""``MESHTERM_FULL_WIDTH=1`` wins over PICOCALC's off-by-default."""
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fake = SimpleNamespace(get_size=lambda: Size(rows=30, columns=100))
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monkeypatch.setattr("prompt_toolkit.output.defaults.create_output", lambda: fake)
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monkeypatch.setenv("MESHTERM_FULL_WIDTH", "1")
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set_platform(PICOCALC)
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assert isinstance(TuiSession()._resolve_output(), _WidthExtendedOutput)
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def test_env_override_forces_reclaim_off_despite_regular(monkeypatch) -> None:
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"""``MESHTERM_FULL_WIDTH=0`` wins over REGULAR's on-by-default."""
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monkeypatch.setenv("MESHTERM_FULL_WIDTH", "0")
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set_platform(REGULAR)
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assert TuiSession()._resolve_output() is None
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