@push.rocks/smartexpect/ts/namespaces/date.ts

A testing library to manage expectations in code, offering both synchronous and asynchronous assertion methods.

import { Assertion } from '../smartexpect.classes.assertion.js';
import type { TExecutionType } from '../types.js';

/**
 * Namespace for date-specific matchers
 */
export class DateMatchers<M extends TExecutionType> {
  constructor(private assertion: Assertion<Date, M>) {}

  toBeDate() {
    return this.assertion.customAssertion(
      (v) => v instanceof Date,
      `Expected value to be a Date instance`
    );
  }

  toBeBeforeDate(date: Date) {
    return this.assertion.customAssertion(
      (v) => v instanceof Date && (v as Date).getTime() < date.getTime(),
      `Expected date to be before ${date.toISOString()}`
    );
  }

  toBeAfterDate(date: Date) {
    return this.assertion.customAssertion(
      (v) => v instanceof Date && (v as Date).getTime() > date.getTime(),
      `Expected date to be after ${date.toISOString()}`
    );
  }
}