unsloth/tests/studio/test_studio_text_descender_clipping.py
Michael Han 9db639f708
Stabilize Studio regression tests (#7192)
* Stabilize Studio regression tests

Rebuild on current main. Restore the set-membership sidebar account-block matcher
(#6647, which fixed the same order-sensitive regex, was reverted on main, so the
guard is failing on main again) and keep the watchdog replacement-race fix, whose
blocked-watchdog stub now waits without a timeout so a superseded watchdog stays
alive until cleanup regardless of scheduler load.

* Tighten the blocked-watchdog stub comment

---------

Co-authored-by: Daniel Han <unslothshared@gmail.com>
2026-07-18 05:54:00 -07:00

62 lines
2.3 KiB
Python

"""Regression guard: Studio text spans must not pair `leading-none` with
`truncate`, which clips glyph descenders (g, p, q, y, j) in visible labels.
"""
from __future__ import annotations
import re
from pathlib import Path
WORKDIR = Path(__file__).resolve().parents[2]
MODEL_SELECTOR = (
WORKDIR / "studio" / "frontend" / "src" / "components" / "assistant-ui" / "model-selector.tsx"
)
APP_SIDEBAR = WORKDIR / "studio" / "frontend" / "src" / "components" / "app-sidebar.tsx"
def _read(path: Path) -> str:
assert path.exists(), f"missing source file: {path}"
return path.read_text()
def test_model_selector_trigger_label_uses_leading_tight():
src = _read(MODEL_SELECTOR)
pattern = re.compile(
r'<span\s+className="[^"]*\bmin-w-0\b[^"]*\bflex-1\b[^"]*\btruncate\b[^"]*\bfont-heading\b[^"]*\btext-\[16px\][^"]*"',
)
matches = pattern.findall(src)
assert matches, "could not find ModelSelectorTrigger model-name span"
for cls in matches:
assert "leading-tight" in cls, f"expected leading-tight, got: {cls}"
assert "leading-none" not in cls, f"leading-none must not coexist with truncate here: {cls}"
def test_sidebar_account_block_uses_leading_tight():
src = _read(APP_SIDEBAR)
class_names = re.findall(r'<div\s+className="([^"]+)"', src)
required = {
"flex",
"flex-1",
"flex-col",
"group-data-[collapsible=icon]:hidden",
}
matches = [classes for classes in class_names if required <= set(classes.split())]
assert matches, "could not find sidebar account-block parent div"
for classes in matches:
leading_classes = [cls for cls in classes.split() if cls.startswith("leading-")]
assert leading_classes, f"no leading-* class on sidebar account-block parent: {classes}"
for cls in leading_classes:
assert (
cls == "leading-tight"
), f"sidebar account-block must use leading-tight, got: {cls}"
def test_no_truncate_plus_leading_none_in_changed_files():
for path in (MODEL_SELECTOR, APP_SIDEBAR):
src = _read(path)
for line in src.splitlines():
if "truncate" in line and "leading-none" in line:
raise AssertionError(
f"{path.name}: same line uses truncate + leading-none, descenders will clip: {line.strip()}"
)