PIMOB-2093: Injected prefilled billing-form address in paymentformconfig

[chintan-soni-cko]

Issue

PIMOB-2093

Proposed changes

1. added capabilities of billing form address in prefilldata from payment form config
2. Added unit tests for it

Test Steps

If there's any functionality change, please list a step by step guide of how to verify the changes, and/or upload a screen recording for any visible changes.

1. Add billing form address in prefill data from payment form config. Refer main activity from sample app
2. verify address summary should update. (attached video)
3. Click on edit address summary and change the fields from the billing form, then Address summary should updated accordingly

Checklist

billling_recording_20230821_094805.webm

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• Reviewers assigned
• I have performed a self-review of my code and manual testing
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if applicable)

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you choose the solution you did and what alternatives you considered, etc...

[fabio-insolia-cko]

Nice addition of quality test here
Good job!

[jheng-hao-lin-cko]

Well done on all the extensive test cases 🔥 🔥 🔥

[jheng-hao-lin-cko]

nit: we can make a companion object containing a lazy instance so the manager can just take the INSTANCE, for example:

internal class BillingFormAddressToBillingAddressMapper : Mapper<BillingFormAddress?, BillingAddress> {

    override fun map(from: BillingFormAddress?) =
        BillingAddress(
        name = from?.name, phone = from?.phone, address = from?.address ?: BillingAddress().address
    )

    internal companion object {
        internal val INSTANCE by lazy { BillingFormAddressToBillingAddressMapper() }
    }
}

// then in the PaymentModule we can do this 
fun paymentStateManager(
    supportedCardSchemes: List<CardScheme>,
    prefillData: PrefillData?
): PaymentStateManager =
    PaymentFormStateManager(supportedCardSchemes, prefillData, BillingFormAddressToBillingAddressMapper.INSTANCE)