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TypeScript
123456789101112131415161718192021222324import { describe, expect, test } from "bun:test"import { renderLatexToString } from "./render"
describe("parser rendering regressions", () => { test.each([ [String.raw`\|v\|`, "║v║"], [String.raw`\left\|v\right\|`, "║v║"], [String.raw`\left|v\right|`, "│v│"], [String.raw`\left(A\rightarrow B\right)`, "(A → B)"], [String.raw`\left\lbrace x\right\rbrace`, "{x}"], [String.raw`\operatorname{arg\,max} x`, "arg max x"], [String.raw`\textrm{if }x`, "if x"], [String.raw`\displaylines{x=1\\y=2}`, "x = 1\n\ny = 2"], ])("renders supported syntax without leaking or losing tokens: %s", (source, expected) => { expect(renderLatexToString(source, { strict: true })).toBe(expected) })
test("renders empty aligned cells like explicitly empty groups", () => { expect(renderLatexToString(String.raw`\begin{aligned}&=x\\&=y\end{aligned}`, { strict: true })).toBe( renderLatexToString(String.raw`\begin{aligned}{}&=x\\{}&=y\end{aligned}`, { strict: true }), ) })})