@shopify/jest-dom-mocks/build/esm/user-timing.mjs

Jest mocking utilities for working with the DOM

import { set } from './utilities.mjs';

class Performance {
  constructor() {
    this.isUsingMockUserTiming = false;
  }
  mock(timing = {}) {
    if (this.isUsingMockUserTiming) {
      throw new Error('You tried to mock window.performance.timing when it was already mocked.');
    }
    this.originalUserTiming = window.performance.timing;
    const mockTiming = {
      navigationStart: 0,
      unloadEventStart: 0,
      unloadEventEnd: 0,
      redirectStart: 0,
      redirectEnd: 0,
      fetchStart: 0,
      domainLookupStart: 0,
      domainLookupEnd: 0,
      connectStart: 0,
      connectEnd: 0,
      secureConnectionStart: 0,
      requestStart: 0,
      responseStart: 0,
      responseEnd: 0,
      domLoading: 0,
      domInteractive: 0,
      domContentLoadedEventStart: 0,
      domContentLoadedEventEnd: 0,
      domComplete: 0,
      loadEventStart: 0,
      loadEventEnd: 0,
      ...timing
    };
    set(window.performance, 'timing', mockTiming);
    this.isUsingMockUserTiming = true;
  }
  restore() {
    if (!this.isUsingMockUserTiming) {
      throw new Error('You tried to restore window.performance.timing when it was already restored.');
    }
    set(window.performance, 'timing', this.originalUserTiming);
    this.isUsingMockUserTiming = false;
  }
  isMocked() {
    return this.isUsingMockUserTiming;
  }
}

export { Performance as default };