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const NS_PER_SEC = 1e9;
const NS_PER_MS = 1e6;
const IS_DEBUGGING = process.execArgv.join(' ').includes('--inspect-brk');
let testTimeoutNS;
export const setTestTimeout = newTimeoutMS => {
const newTimeoutNS = newTimeoutMS * NS_PER_MS;
// never accept a smaller timeout than the default
if (newTimeoutNS < testTimeoutNS) {
return;
}
testTimeoutNS = newTimeoutNS;
jest.setTimeout(newTimeoutMS);
};
// Allows slow tests to set their own timeout.
// Useful for tests with jQuery, which is very slow in big DOMs.
let temporaryTimeoutNS = null;
export const setTestTimeoutOnce = newTimeoutMS => {
const newTimeoutNS = newTimeoutMS * NS_PER_MS;
// never accept a smaller timeout than the default
if (newTimeoutNS < testTimeoutNS) {
return;
}
temporaryTimeoutNS = newTimeoutNS;
};
export const initializeTestTimeout = defaultTimeoutMS => {
setTestTimeout(defaultTimeoutMS);
let testStartTime;
// https://github.com/facebook/jest/issues/6947
beforeEach(() => {
testStartTime = process.hrtime();
});
afterEach(() => {
let timeoutNS = testTimeoutNS;
if (Number.isFinite(temporaryTimeoutNS)) {
timeoutNS = temporaryTimeoutNS;
temporaryTimeoutNS = null;
}
const [seconds, remainingNs] = process.hrtime(testStartTime);
const elapsedNS = seconds * NS_PER_SEC + remainingNs;
// Disable the timeout error when debugging. It is meaningless because
// debugging always takes longer than the test timeout.
if (elapsedNS > timeoutNS && !IS_DEBUGGING) {
throw new Error(
`Test took too long (${elapsedNS / NS_PER_MS}ms > ${timeoutNS / NS_PER_MS}ms)!`,
);
}
});
};
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