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ai-ag2026
c65ae46983
Keep explicit bottom pins stable across late layout growth and make clicking the already-active sidebar session a no-op before loadSession mutates state. Update scroll regression tests for the delayed settle path.
52 lines
2.1 KiB
Python
52 lines
2.1 KiB
Python
"""Regression tests for #1784: sidebar scroll remains independent while streaming."""
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[1]
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UI_JS = (ROOT / "static" / "ui.js").read_text(encoding="utf-8")
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STYLE_CSS = (ROOT / "static" / "style.css").read_text(encoding="utf-8")
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def _extract_fn(src: str, name: str) -> str:
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marker = f"function {name}"
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start = src.find(marker)
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assert start >= 0, f"{name} not found"
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brace = src.find("{", start)
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assert brace >= 0, f"{name} body not found"
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depth = 0
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for i in range(brace, len(src)):
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ch = src[i]
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if ch == "{":
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depth += 1
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elif ch == "}":
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depth -= 1
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if depth == 0:
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return src[start : i + 1]
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raise AssertionError(f"{name} body did not close")
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def test_sidebar_wheel_intent_is_recorded_passively():
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"""A sidebar wheel gesture must not be swallowed or ignored during streaming."""
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assert "_recordNonMessageScrollIntent" in UI_JS
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assert "document.addEventListener('wheel',_recordNonMessageScrollIntent" in UI_JS
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assert "{capture:true,passive:true}" in UI_JS
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assert "!el.contains(target)" in UI_JS
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assert "_lastNonMessageScrollIntentMs=performance.now()" in UI_JS
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def test_scroll_if_pinned_skips_during_recent_non_message_scroll():
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"""Token rendering must not force-scroll #messages while the sidebar is being scrolled."""
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fn = _extract_fn(UI_JS, "scrollIfPinned")
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assert "_recentNonMessageScrollIntent()" in fn
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guard_index = fn.find("_recentNonMessageScrollIntent()")
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settle_index = fn.find("_settleMessageScrollToBottom(false)")
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assert guard_index >= 0 and settle_index >= 0 and guard_index < settle_index
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settle = _extract_fn(UI_JS, "_settleMessageScrollToBottom")
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assert "_setMessageScrollToBottom();" in settle
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assert "_recentNonMessageScrollIntent()" in settle
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def test_session_list_has_its_own_scroll_boundary():
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"""The session list is its own scroll surface, not chained to the chat/body scroller."""
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assert ".session-list{flex:1;overflow-y:auto;padding:0 8px 8px;min-height:0;overscroll-behavior-y:contain;touch-action:pan-y;}" in STYLE_CSS
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