shivaam commented on code in PR #64748: URL: https://github.com/apache/airflow/pull/64748#discussion_r3068062793
########## airflow-core/src/airflow/ui/src/context/colorMode/useMonacoTheme.test.ts: ########## @@ -0,0 +1,132 @@ +/*! + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 type { Monaco } from "@monaco-editor/react"; +import { renderHook } from "@testing-library/react"; +import { beforeEach, describe, expect, it, vi } from "vitest"; + +// `useColorMode` is the only dependency of the hook we want to test. We mock +// it with a mutable return so individual tests can drive light/dark behaviour. +const colorModeMock = vi.fn<() => { colorMode: "dark" | "light" | undefined }>(); + +vi.mock("./useColorMode", () => ({ + useColorMode: () => colorModeMock(), +})); + +// The hook registers Monaco themes exactly once via a module-level flag. We +// reset modules between tests so each test starts with a fresh flag state. +const loadHook = async () => { + const module = await import("./useMonacoTheme"); + + return module.useMonacoTheme; +}; + +const createFakeMonaco = () => { + const defineTheme = vi.fn(); + + return { defineTheme, monaco: { editor: { defineTheme } } as unknown as Monaco }; +}; + +// happy-dom does not implement Canvas2D rendering, so the hook's `getContext` +// call would return null and short-circuit before registering themes. We stub +// it with the minimal surface the hook needs: the draw/clear methods and a +// `getImageData` that returns arbitrary RGB bytes (the exact hex values are +// irrelevant to these tests — we only care that theme registration happens). +const stubCanvasContext = () => { + const fakeContext = { + clearRect: vi.fn(), + fillRect: vi.fn(), + fillStyle: "", + getImageData: vi.fn(() => ({ data: new Uint8ClampedArray([0, 0, 0, 255]) })), + }; + + vi.spyOn(HTMLCanvasElement.prototype, "getContext").mockReturnValue( + fakeContext as unknown as CanvasRenderingContext2D, + ); Review Comment: resolved as we removed culori -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
