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fonts: stop injecting STEALTHFOX_FONTLIST/SYSTEMUI env (binary self-contained)

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The patched binary is always bundle-only and needs no external font config, so
the wrapper no longer injects any font env in _build_env (sync + async). No
external font customization channel remains. Test updated.
This commit is contained in:
feder-cr 2026-07-06 03:09:35 +02:00
parent d3462cca47
commit 029b678964
3 changed files with 12 additions and 30 deletions
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14
tests/test_launcher_helpers.py
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@ -207,18 +207,18 @@ def test_build_env_caller_env_override_wins(monkeypatch):
@pytest.mark.unit
def test_build_env_injects_font_list_and_system_ui():
# The binary reads these at the gfxPlatformFontList constructor (process
# start); Playwright delivers firefox_user_prefs over juggler AFTER start, so
# the env var is the only at-construction channel. Without it host fonts leak
# on Linux/macOS (the wrapper's pref-only delivery was a cross-OS gap).
def test_build_env_never_injects_font_env():
# The patched binary is self-contained for fonts (always bundle-only; the
# exposed set IS the bundle, system-ui + generics baked in C++). The wrapper
# must NOT inject any STEALTHFOX_FONTLIST/SYSTEMUI env — even if legacy font
# prefs are passed — so there is no external font customization channel.
ip = InvisiblePlaywright(seed=42)
env = ip._build_env({
"zoom.stealth.font.fontlist": "arial,calibri,segoe ui",
"zoom.stealth.font.system_ui": "Segoe UI",
})
assert env["STEALTHFOX_FONTLIST"] == "arial,calibri,segoe ui"
assert env["STEALTHFOX_SYSTEMUI"] == "Segoe UI"
assert "STEALTHFOX_FONTLIST" not in env
assert "STEALTHFOX_SYSTEMUI" not in env
@pytest.mark.unit