callback for postal code complete

[ccen-stripe]

Summary

Introduce CardInputListener#onPostalCodeComplete
Note: Since there is no matching standard for Global, any non empty global postal is considered valid.

Motivation

https://jira.corp.stripe.com/browse/RUN_MOBILESDK-549

Testing

• Added tests
• Modified tests
• Manually verified

Screenshots

Before	After
before screenshot	after screenshot

[github-actions]

Diffuse output:

[michelleb-stripe]

Would it be wrong to say a Global zip code is complete when it is not blank? This might give a more consistent feel across US and Global zip codes?

[ccen-stripe]

Would it be wrong to say a Global zip code is complete when it is not blank? This might give a more consistent feel across US and Global zip codes?

There is no algorithm to tell if a global zip is complete or not, atm we only have the algorithm to tell if it's valid for US, GB and CA. This listener is used in CardWidget, which doesn't have access to country information other than US.

[michelleb-stripe]

Would it be wrong to say a Global zip code is complete when it is not blank? This might give a more consistent feel across US and Global zip codes?

There is no algorithm to tell if a global zip is complete or not, atm we only have the algorithm to tell if it's valid for US, GB and CA. This listener is used in CardWidget, which doesn't have access to country information other than US.

I think a Global zip code is complete as long as it has text in it. A blank global zip code is not valid if it is indicated to be required.

[ccen-stripe]

Would it be wrong to say a Global zip code is complete when it is not blank? This might give a more consistent feel across US and Global zip codes?

There is no algorithm to tell if a global zip is complete or not, atm we only have the algorithm to tell if it's valid for US, GB and CA. This listener is used in CardWidget, which doesn't have access to country information other than US.

I think a Global zip code is complete as long as it has text in it. A blank global zip code is not valid if it is indicated to be required.

hmm this would end up passing valid callback each time text changed - "1" , "12" and "123" will all return true to user three times in a row - not sure how useful it is. Also in our codebase we have a formal PostalCodeValidator, which doesn't have an algorithm for "if it's global, always return true for any unempty text"

[ccen-stripe]

Would it be wrong to say a Global zip code is complete when it is not blank? This might give a more consistent feel across US and Global zip codes?

There is no algorithm to tell if a global zip is complete or not, atm we only have the algorithm to tell if it's valid for US, GB and CA. This listener is used in CardWidget, which doesn't have access to country information other than US.

I think a Global zip code is complete as long as it has text in it. A blank global zip code is not valid if it is indicated to be required.

hmm this would end up passing valid callback each time text changed - "1" , "12" and "123" will all return true to user three times in a row - not sure how useful it is. Also in our codebase we have a formal PostalCodeValidator, which doesn't have an algorithm for "if it's global, always return true for any unempty text"

@michelleb-stripe just realized we already have a similar change on CardInputWidget for validCallback, since it's already there, it makes sense to keep the logic in sync. Will update the callback accordingly