it('should convert immediate payment', () => {
      const paymentIntention = PaymentIntention.deserialize({
        paymentOption: { option: PaymentType.IMMEDIATELY } })

      const result = paymentIntention.toDomainInstance()
      expect(result.paymentOption).to.be.equal('IMMEDIATELY')
      expect(result.paymentDate).to.be.undefined
      expect(result.repaymentPlan).to.be.undefined
    })

 deserialize (input: any): DraftClaimantResponse {
   if (input) {
     this.externalId = input.externalId
     if (input.defendantResponseViewed) {
       this.defendantResponseViewed = input.defendantResponseViewed
     }
     if (input.settleAdmitted) {
       this.settleAdmitted = new SettleAdmitted().deserialize(input.settleAdmitted)
     }
     if (input.acceptPaymentMethod) {
       this.acceptPaymentMethod = new AcceptPaymentMethod().deserialize(input.acceptPaymentMethod)
     }
     if (input.formaliseRepaymentPlan) {
       this.formaliseRepaymentPlan = new FormaliseRepaymentPlan().deserialize(input.formaliseRepaymentPlan)
     }
     if (input.settlementAgreement) {
       this.settlementAgreement = new SettlementAgreement().deserialize(input.settlementAgreement)
     }
     if (input.freeMediation) {
       this.freeMediation = new FreeMediation(input.freeMediation.option)
     }
     if (input.paidAmount) {
       this.paidAmount = new PaidAmount().deserialize(input.paidAmount)
     }
     if (input.partPaymentReceived) {
       this.partPaymentReceived = new PartPaymentReceived().deserialize(input.partPaymentReceived)
     }
     if (input.accepted) {
       this.accepted = new ClaimSettled().deserialize(input.accepted)
     }
     if (input.acceptCourtOffer) {
       this.acceptCourtOffer = new AcceptCourtOffer().deserialize(input.acceptCourtOffer)
     }
     if (input.alternatePaymentMethod) {
       this.alternatePaymentMethod = DraftPaymentIntention.deserialize(input.alternatePaymentMethod)
     }
     if (input.courtOrderAmount) {
       this.courtOrderAmount = input.courtOrderAmount
     }
     if (input.courtDetermination) {
       this.courtDetermination = new CourtDetermination().deserialize(input.courtDetermination)
     }
     if (input.rejectionReason) {
       this.rejectionReason = new RejectionReason().deserialize(input.rejectionReason)
     }
     if (input.intentionToProceed) {
       this.intentionToProceed = new IntentionToProceed().deserialize(input.intentionToProceed)
     }
   }
   return this
 }