7c48bab1f2
Adds co-located unit tests for ten targets (client → vitest *.test.ts(x), server → jest *.spec.ts), plus minimal behavior-preserving extractions/exports where the issue required a pure function to test: - encode-wav: WAV header + PCM16 clamping - editor-ext embed-provider / utils (sanitizeUrl, isInternalFileUrl) / indent (export clampIndent) - label.dto @Matches regex - move-page.dto vs generateJitteredKeyBetween parity (bug locked via test.failing) - new-note-button canCreatePage (extracted to can-create-page.ts) - history-editor diff (extracted pure computeHistoryDiff into history-diff.ts) - notification getTypesForTab + repo contract (direct-tab divergence locked via test.failing) - search buildTsQuery (extracted + sanitizes operator inputs so adversarial queries no longer risk a to_tsquery 500) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
57 lines
2.3 KiB
TypeScript
57 lines
2.3 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import { clampIndent } from "./indent";
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// Unit tests for `clampIndent` (indent.ts) — the pure core of the indent
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// extension. The extension stores an integer `indent` level on paragraphs and
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// headings (default range [0, 8]); `clampIndent` keeps every code path
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// (increment via Tab, outdent via Shift-Tab, and parsing junk `data-indent`
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// attributes from pasted HTML) inside the configured bounds. A regression would
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// let an out-of-range / NaN level reach renderHTML and produce broken padding.
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//
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// NOTE: the "excluded containers stay flat" behaviour (paragraphs inside list
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// items / table cells / code blocks) lives in `updateIndent` /
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// `appendTransaction`, which require a real ProseMirror EditorState and document
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// resolution — it cannot be isolated into a pure function, so it is intentionally
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// out of scope here and is exercised at the extension/editor level.
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const MIN = 0;
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const MAX = 8;
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describe("clampIndent", () => {
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it("leaves in-range values untouched", () => {
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expect(clampIndent(0, MIN, MAX)).toBe(0);
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expect(clampIndent(4, MIN, MAX)).toBe(4);
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expect(clampIndent(8, MIN, MAX)).toBe(8);
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});
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it("clamps increments at the max (8)", () => {
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// Tab at level 8 would compute 9 -> stays at 8.
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expect(clampIndent(8 + 1, MIN, MAX)).toBe(8);
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expect(clampIndent(100, MIN, MAX)).toBe(8);
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});
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it("clamps outdents at the min (0)", () => {
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// Shift-Tab at level 0 would compute -1 -> stays at 0.
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expect(clampIndent(0 - 1, MIN, MAX)).toBe(0);
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expect(clampIndent(-100, MIN, MAX)).toBe(0);
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});
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it("treats non-finite junk (NaN / Infinity) as the min", () => {
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// parseInt('abc', 10) === NaN, which must not propagate to the attribute.
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expect(clampIndent(NaN, MIN, MAX)).toBe(MIN);
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expect(clampIndent(Infinity, MIN, MAX)).toBe(MIN);
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expect(clampIndent(-Infinity, MIN, MAX)).toBe(MIN);
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});
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it("truncates fractional values toward zero before clamping", () => {
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expect(clampIndent(3.9, MIN, MAX)).toBe(3);
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expect(clampIndent(-0.5, MIN, MAX)).toBe(MIN);
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});
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it("clamps junk data-indent values (negative / > max) to the rails", () => {
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// Mirrors parseHTML(parseInt(data-indent, 10)) for adversarial pasted HTML.
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expect(clampIndent(-3, MIN, MAX)).toBe(MIN);
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expect(clampIndent(42, MIN, MAX)).toBe(MAX);
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});
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});
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