Braintree Blue: Partial capture

[aenand]

Braintree blue can support partial captures for certain
types of transactions. This commit adds logic to handle partial capture
logic if the partial_capture field is passed down.

Test Summary
Local:
5269 tests, 76156 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
746 files inspected, no offenses detected
Unit:
92 tests, 204 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
Remote:
98 tests, 530 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed

[tatsianaclifton]

It looks good, but I think we should add remote tests for partial capture.

[aenand]

@tatsianaclifton I didn't add a remote test for partial capture because the Braintree docs mentioned it is only available for Paypal and Venmo transactions and I don't think those auths are added in AM yet. Are they in AM?

https://developer.paypal.com/braintree/docs/reference/request/transaction/submit-for-partial-settlement

[tatsianaclifton]

@tatsianaclifton I didn't add a remote test for partial capture because the Braintree docs mentioned it is only available for Paypal and Venmo transactions and I don't think those auths are added in AM yet. Are they in AM?

https://developer.paypal.com/braintree/docs/reference/request/transaction/submit-for-partial-settlement

PayPal and Venmo should work for purchase and since purchase just calls authorization I would assume nothing needs to be modified for authorization to accept PayPal and Venmo. However, I don't see any remote tests added to that, not sure what the reason. Maybe Braintree sandbox doesn't allow testing for that.

[aenand]

@tatsianaclifton good to know! I'll look into that later and see if it works

[molbrown]

I think all you would need is a Venmo/ Paypal nonce? Those are available here for testing: https://developer.paypal.com/braintree/docs/reference/general/testing#nonces-representing-alternative-payment-methods

[aenand]

@tatsianaclifton @molbrown thanks for those resources! I was able to add a successful partial capture remote test.

[tatsianaclifton]

LGTM