| 1 | // Run: tsx src/__tests__/code-block-copy-position.test.tsx |
| 2 | |
| 3 | import { readFileSync } from "node:fs"; |
| 4 | import { fileURLToPath } from "node:url"; |
| 5 | import { JSDOM } from "jsdom"; |
| 6 | import { createElement } from "react"; |
| 7 | import { renderToStaticMarkup } from "react-dom/server"; |
| 8 | import HljsCode from "../components/editors/HljsCode"; |
| 9 | import { LocaleProvider } from "../lib/i18n"; |
| 10 | |
| 11 | let passed = 0; |
| 12 | let failed = 0; |
| 13 | |
| 14 | function ok(value: unknown, label: string) { |
| 15 | if (value) { |
| 16 | process.stdout.write(` PASS ${label}\n`); |
| 17 | passed += 1; |
| 18 | } else { |
| 19 | process.stdout.write(` FAIL ${label}\n`); |
| 20 | failed += 1; |
| 21 | } |
| 22 | } |
| 23 | |
| 24 | function notOk(value: unknown, label: string) { |
| 25 | ok(!value, label); |
| 26 | } |
| 27 | |
| 28 | function renderCodeBlock() { |
| 29 | return renderToStaticMarkup( |
| 30 | createElement( |
| 31 | LocaleProvider, |
| 32 | null, |
| 33 | createElement(HljsCode, { |
| 34 | value: "const veryLongLine = 'x'.repeat(240);", |
| 35 | language: "ts", |
| 36 | maxHeight: 120, |
| 37 | }), |
| 38 | ), |
| 39 | ); |
| 40 | } |
| 41 | |
| 42 | function selectorPresent(css: string, selector: string): boolean { |
| 43 | return css.includes(selector); |
| 44 | } |
| 45 | |
| 46 | console.log("\ncode block copy position"); |
| 47 | |
| 48 | const markup = renderCodeBlock(); |
| 49 | const dom = new JSDOM(markup); |
| 50 | const document = dom.window.document; |
| 51 | const wrap = document.querySelector(".code-block__wrap"); |
| 52 | const pre = document.querySelector("pre.code.hljs"); |
| 53 | const copy = document.querySelector(".code-block__copy"); |
| 54 | |
| 55 | ok(wrap, "HljsCode renders a positioned copy wrapper"); |
| 56 | ok(pre, "HljsCode renders the highlighted pre"); |
| 57 | ok(copy, "HljsCode renders the copy button"); |
| 58 | ok(pre?.parentElement === wrap, "scrollable pre is inside the wrapper"); |
| 59 | ok(copy?.parentElement === wrap, "copy button is a wrapper child"); |
| 60 | notOk(pre?.contains(copy ?? null), "copy button is outside the scrollable pre"); |
| 61 | ok(copy?.previousElementSibling === pre, "copy button follows pre as a sibling"); |
| 62 | |
| 63 | const stylesPath = fileURLToPath(new URL("../styles.css", import.meta.url)); |
| 64 | const css = readFileSync(stylesPath, "utf8"); |
| 65 | |
| 66 | ok(selectorPresent(css, ".code-block__wrap:hover .code-block__copy"), "hover reveal targets the wrapper"); |
| 67 | notOk(selectorPresent(css, ".code:hover .code-block__copy"), "hover reveal no longer depends on pre descendants"); |
| 68 | ok( |
| 69 | selectorPresent(css, ".app--creation .msg--assistant .md .code:not([data-lang]) + .code-block__copy"), |
| 70 | "creation unlabelled code button styles target sibling copy buttons", |
| 71 | ); |
| 72 | notOk( |
| 73 | selectorPresent(css, ".app--creation .msg--assistant .md .code:not([data-lang]) .code-block__copy"), |
| 74 | "creation unlabelled code styles do not target descendants inside pre", |
| 75 | ); |
| 76 | ok( |
| 77 | selectorPresent(css, '.app--creation .msg--assistant .md .code[data-lang="bash"] + .code-block__copy'), |
| 78 | "creation shell code button styles target sibling copy buttons", |
| 79 | ); |
| 80 | notOk( |
| 81 | selectorPresent(css, '.app--creation .msg--assistant .md .code[data-lang="bash"] .code-block__copy'), |
| 82 | "creation shell code styles do not target descendants inside pre", |
| 83 | ); |
| 84 | |
| 85 | console.log(`\n${passed} passed, ${failed} failed`); |
| 86 | if (failed > 0) process.exit(1); |
| 87 |