26 lines
666 B
TypeScript
26 lines
666 B
TypeScript
import { expect } from 'chai';
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export async function expectDeprecationMessages (func: () => any, ...expected: string[]) {
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const messages: string[] = [];
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const originalWarn = console.warn;
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console.warn = (message) => {
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messages.push(message);
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};
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const warningListener = (error: Error) => {
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messages.push(error.message);
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};
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process.on('warning', warningListener);
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try {
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return await func();
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} finally {
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// process.emitWarning seems to need us to wait a tick
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await new Promise(process.nextTick);
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console.warn = originalWarn;
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process.off('warning', warningListener);
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expect(messages).to.deep.equal(expected);
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}
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}
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