63 lines
2.3 KiB
TypeScript
63 lines
2.3 KiB
TypeScript
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import test from "node:test";
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import assert from "node:assert/strict";
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import {
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normalizeNoteMathSource,
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NOTE_MATH_KATEX_OPTIONS,
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renderNoteMathFormula,
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} from "./noteMathRenderer.ts";
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test("note math renderer uses accessible, untrusted KaTeX output", () => {
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assert.equal(NOTE_MATH_KATEX_OPTIONS.displayMode, true);
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assert.equal(NOTE_MATH_KATEX_OPTIONS.output, "htmlAndMathml");
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assert.equal(NOTE_MATH_KATEX_OPTIONS.throwOnError, false);
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assert.equal(NOTE_MATH_KATEX_OPTIONS.trust, false);
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const html = renderNoteMathFormula(String.raw`E = mc^2`);
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assert.match(html, /class="katex-display"/);
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assert.match(html, /class="katex-mathml"/);
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assert.match(html, /<msup>/);
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});
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test("note math renderer handles prime shorthand and matrices", () => {
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const primes = renderNoteMathFormula(String.raw`f'(x) + x''`);
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assert.match(primes, /<msup>/);
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assert.match(primes, /′/);
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const matrix = renderNoteMathFormula(String.raw`\begin{pmatrix} a & b \\ c & d \end{pmatrix}^{-1}`);
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assert.match(matrix, /<mtable(?:\s|>)/);
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assert.match(matrix, /<msup>/);
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});
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test("note math renderer supports common LaTeX constructs without custom parsing", () => {
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const html = renderNoteMathFormula(
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String.raw`\sum_{i=1}^n \frac{\alpha_i}{\sqrt[3]{x_i}} \times \left\lVert v \right\rVert`,
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);
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assert.match(html, /∑/);
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assert.match(html, /<mfrac>/);
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assert.match(html, /<mroot>/);
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assert.match(html, /α/);
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assert.match(html, /∥/);
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});
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test("note math renderer accepts balanced outer display delimiters only", () => {
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assert.equal(normalizeNoteMathSource(" $$ x^2 $$ "), "x^2");
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assert.equal(normalizeNoteMathSource(String.raw`\[ x^2 \]`), "x^2");
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assert.equal(normalizeNoteMathSource("$$ x^2"), "$$ x^2");
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assert.equal(normalizeNoteMathSource("x^2 $$"), "x^2 $$");
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});
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test("note math renderer shows invalid input without throwing", () => {
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const html = renderNoteMathFormula(String.raw`\frac{`);
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assert.match(html, /class="katex-error"/);
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assert.match(html, /\\frac/);
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});
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test("note math renderer blocks untrusted links and external images", () => {
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const link = renderNoteMathFormula(String.raw`\href{javascript:alert(1)}{click}`);
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assert.doesNotMatch(link, /href=/i);
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const image = renderNoteMathFormula(String.raw`\includegraphics{https://example.com/x.png}`);
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assert.doesNotMatch(image, /<img/i);
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});
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