707315facd
- Added `jest.environment.js` to create a custom Jest environment that filters out harmless XMLHttpRequest errors from jsdom's VirtualConsole. - Updated `jest.config.js` to use the custom environment, reducing noisy test outputs.
55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
/**
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* Custom Jest environment that suppresses jsdom VirtualConsole XMLHttpRequest errors
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*
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* These errors occur when jsdom tries to make network requests during tests
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* (e.g., XMLHttpRequest to localhost:8000) and they fail. They're harmless
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* noise that clutters test output.
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*/
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// This file is executed by Jest in a CommonJS context; using require() here is intentional.
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// eslint-disable-next-line @typescript-eslint/no-require-imports
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const JSDOMEnvironment = require('jest-environment-jsdom').default;
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class CustomJSDOMEnvironment extends JSDOMEnvironment {
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constructor(config, context) {
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// Customize virtualConsole options to suppress specific errors
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const customConfig = {
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...config,
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projectConfig: {
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...config.projectConfig,
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testEnvironmentOptions: {
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...config.projectConfig?.testEnvironmentOptions,
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// Custom error handling via virtualConsole.sendTo
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},
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},
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};
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super(customConfig, context);
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}
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async setup() {
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await super.setup();
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// After setup, intercept console.error to filter XMLHttpRequest noise
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// This is called by jsdom's VirtualConsole when errors occur
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const originalConsoleError = this.global.console.error;
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this.global.console.error = (...args) => {
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const message = args[0]?.toString() || '';
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const errorType = args[0]?.type || '';
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// Filter out XMLHttpRequest/AggregateError noise from jsdom
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if (
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message.includes('AggregateError') ||
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message.includes('XMLHttpRequest') ||
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errorType === 'XMLHttpRequest'
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) {
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return;
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}
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originalConsoleError.apply(this.global.console, args);
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};
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}
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}
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module.exports = CustomJSDOMEnvironment;
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