Function createSampler

packages/benchpress/test/sampler_spec.ts:24–64

({
    driver,
    metric,
    reporter,
    validator,
    prepare,
    execute,
  }: {
    driver?: any;
    metric?: Metric;
    reporter?: Reporter;
    validator?: Validator;
    prepare?: any;
    execute?: any;
  } = {})

  const EMPTY_EXECUTE = () => {};

  function createSampler({
    driver,
    metric,
    reporter,
    validator,
    prepare,
    execute,
  }: {
    driver?: any;
    metric?: Metric;
    reporter?: Reporter;
    validator?: Validator;
    prepare?: any;
    execute?: any;
  } = {}) {
    let time = 1000;
    if (!metric) {
      metric = new MockMetric([]);
    }
    if (!reporter) {
      reporter = new MockReporter([]);
    }
    if (driver == null) {
      driver = new MockDriverAdapter([]);
    }
    const providers = [
      Options.DEFAULT_PROVIDERS,
      Sampler.PROVIDERS,
      {provide: Metric, useValue: metric},
      {provide: Reporter, useValue: reporter},
      {provide: WebDriverAdapter, useValue: driver},
      {provide: Options.EXECUTE, useValue: execute},
      {provide: Validator, useValue: validator},
      {provide: Options.NOW, useValue: () => new Date(time++)},
    ];
    if (prepare != null) {
      providers.push({provide: Options.PREPARE, useValue: prepare});
    }

    sampler = Injector.create({providers}).get(Sampler);
  }

  it('should call the prepare and execute callbacks using WebDriverAdapter.waitFor', (done) => {
    const log: any[] = [];