Method equals

packages/expect/src/__tests__/customEqualityTesters.test.ts:25–33

(other: Volume)

  }

  equals(other: Volume): boolean {
    if (this.unit === other.unit) {
      return this.amount === other.amount;
    } else if (this.unit === 'L' && other.unit === 'mL') {
      return this.amount * 1000 === other.amount;
    } else {
      return this.amount === other.amount * 1000;
    }
  }
}

function createVolume(amount: number, unit: 'L' | 'mL' = 'L') {