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frontend/app/src/FontPreload.test.tsx
45 строк
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Ken McGrady
Update copyright header to 2026 (#13491)
02 янв 2026, 16:21
Не верифицирован
02 янв 2026, 16:21
374540a
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/** * Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022-2026) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import fs from "fs" import path from "path" // Current hash for our preloaded font asset: const SOURCE_SANS_REGULAR_HASH = "BsWL4Kly" // Render a copy of index.html file to test const HTML = fs.readFileSync(path.resolve(__dirname, "../index.html"), "utf8") document.documentElement.innerHTML = HTML.toString() it("index.html preloads expected font with expected hash", () => { const preloadedFonts = document.querySelectorAll<HTMLLinkElement>( "link[rel='preload']" ) // With variable font, we only preload one font // instead of 3 separate font weight files expect(preloadedFonts.length).toBe(1) // Get the preloaded font's href const fontElement = preloadedFonts.item(0) const fontHref = fontElement.href // 4 parts in full name split by "." // <font>-<weight>.otf.<fontHash>.woff2 const fontFullName = fontHref.split("/").pop() const fontHash = fontFullName ? fontFullName.split(".")[2] : "" expect(fontHash).toBe(SOURCE_SANS_REGULAR_HASH) })