Samraaj BathandClaude Fable 5
b445b62a69
- Keep basis/h/min-h [0%] literal (0% content-sizes on an indefinite axis; 0px is definite zero) and fold grow + zero-basis into flex-1 - a flex:1 1 0% child no longer collapses to height 0 in auto-height columns - Width centering accepts per-viewport caps (max-width: min(Npx, fluid)) with symmetric gaps -> mx-auto + banded max-w instead of literal banded margins that drift off-centre between captured widths; non-painted viewports no longer poison the inference - letter-spacing keeps sub-0.1px precision (no zero snap); style gate normalizes Chromium's letter-spacing "normal" <-> 0px serialization - Videos pause + seek to frame 0 before every source AND clone screenshot, removing playback-time nondeterminism from perceptual evidence 278 tests pass (19 new), typecheck clean. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
39 lines
1.8 KiB
TypeScript
39 lines
1.8 KiB
TypeScript
import { describe, it } from "node:test";
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import assert from "node:assert/strict";
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import { letterSpacingEquivalent } from "../src/validate/gates.js";
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// Chromium serializes a computed `letter-spacing: 0` back as the keyword `normal`. The emitter, after
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// snapping a sub-0.1px authored tracking to 0, ships `letter-spacing: 0px` — which the CLONE then
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// reports as `normal` too, but a source that authored an explicit near-zero px can land on either
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// spelling. Gate 4 must treat `normal` and `0px` as equal, or every such node fails on spelling alone.
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describe("gate4 letterSpacing normal ↔ 0px normalization", () => {
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it("treats `normal` and `0px` as equivalent", () => {
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assert.ok(letterSpacingEquivalent("normal", "0px"));
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assert.ok(letterSpacingEquivalent("0px", "normal"));
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});
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it("treats `normal` and `normal` as equivalent", () => {
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assert.ok(letterSpacingEquivalent("normal", "normal"));
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});
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it("treats a sub-2px authored tracking vs `normal` as equivalent (within ±2px)", () => {
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// source computed `-0.08px`, clone serialized `normal` — a 0.08px delta, well within tolerance.
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assert.ok(letterSpacingEquivalent("-0.08px", "normal"));
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assert.ok(letterSpacingEquivalent("normal", "-0.0375px"));
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});
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it("still equates two close real px values (−0.24px vs −0.2px)", () => {
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assert.ok(letterSpacingEquivalent("-0.24px", "-0.2px"));
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});
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it("still FAILS a genuine tracking difference beyond ±2px", () => {
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assert.ok(!letterSpacingEquivalent("4px", "normal"));
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assert.ok(!letterSpacingEquivalent("normal", "-3px"));
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assert.ok(!letterSpacingEquivalent("6px", "2px"));
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});
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it("passes when the source did not constrain the property (undefined)", () => {
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assert.ok(letterSpacingEquivalent(undefined, "0px"));
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});
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});
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