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generate_assets_test.ts
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generate_assets_test.ts
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import { DOMParser } from "./deps.ts";
import { assert, assertEquals } from "./test_deps.ts";
import { extractReferencedAssets, generateAssets } from "./generate_assets.ts";
Deno.test("extractReferencedAssets - extracts referenced assets in the html document", () => {
const assets = [...extractReferencedAssets(
new DOMParser().parseFromString(
`
<html>
<head>
<title>Test document</title>
<link rel="icon" href="/favicon.ico" />
<link rel="stylesheet" href="css/style.css" />
<script src="js/script.js"></script>
</head>
<body>
<h1></h1>
<img
srcset="images/logo.webp"
src="images/logo.svg" />
</body>
</html>
`,
"text/html",
)!,
)];
assertEquals(assets.length, 3);
assertEquals(assets[0].constructor.name, "ScriptAsset");
assertEquals(assets[1].constructor.name, "CssAsset");
assertEquals(assets[2].constructor.name, "ImageAsset");
});
Deno.test("extractReferencedAssets - references to http(s):// schemes are treated as external reference", () => {
const assets = [...extractReferencedAssets(
new DOMParser().parseFromString(
`
<html>
<head>
<title>Test document</title>
<link rel="stylesheet" href="https://necolas.github.io/normalize.css/8.0.1/normalize.css" />
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<h1></h1>
<img
srcset="https://deno.land/logo.svg"
src="https://deno.land/logo.svg" />
</body>
</html>
`,
"text/html",
)!,
)];
assertEquals(assets.length, 0);
});
Deno.test("generateAssets", async () => {
const [gen] = await generateAssets("examples/with-imports/index.html", {
publicUrl: ".",
});
const assets = [];
for await (const asset of gen) {
assets.push(asset);
}
assertEquals(assets.length, 5);
const [js, css, imgSrc, imgSrcset, html] = assets;
assert(js.name.endsWith(".js"));
assert(css.name.endsWith(".css"));
assert(imgSrc.name.endsWith(".svg"));
assert(imgSrcset.name.endsWith(".webp"));
assertEquals(html.name, "index.html");
const htmlText = await html.text();
assert(htmlText.includes(`"${js.name}"`));
assert(htmlText.includes(`"${css.name}"`));
assert(htmlText.includes(`"${imgSrc.name}"`));
assert(htmlText.includes(`"${imgSrcset.name} 2x,`));
});
Deno.test("generateAssets - publicUrl=/", async () => {
const [gen] = await generateAssets("examples/with-imports/index.html", {
publicUrl: "/",
});
const assets = [];
for await (const asset of gen) {
assets.push(asset);
}
const [js, css, imgSrc, imgSrcset, html] = assets;
const htmlText = await html.text();
assert(htmlText.includes(`"/${js.name}"`));
assert(htmlText.includes(`"/${css.name}"`));
assert(htmlText.includes(`"/${imgSrc.name}"`));
assert(htmlText.includes(`"/${imgSrcset.name} 2x,`));
});