Adds the magic `frozen_string_literal: true` comment to every file and
enables a Rubocop rule to make sure that it's always going to be there
going forward as well.
See here for more background [1], but the basic idea is that unlike many
other languages, static strings in code are mutable by default. This has
since been acknowledged as not a particularly good idea, and the
intention is to rectify the mistake when Ruby 3 comes out, where all
string literals will be frozen. The `frozen_string_literal` magic
comment was introduced in Ruby 2.3 as a way of easing the transition,
and allows libraries and projects to freeze their literals in advance.
I don't think this is breaking in any way: it's possible that users
might've been pulling out one of are literals somehow and mutating it,
but that would probably not have been useful for anything and would
certainly not be recommended, so I'm quite comfortable pushing this
change through as a minor version.
As discussed in #641.
[1] https://stackoverflow.com/a/37799399
Moves away from Committee and towards stripe-mock, an external
self-contained executable API stub server based on OpenAPI [1]. The
motivation here is that instead of making stripe-ruby a special
snowflake, we can use a single well-tested and feature-rich mock
implementation to drive every API's test suite.
[1] https://github.com/stripe/stripe-mock
The Transfer object used to represent all movements of funds in Stripe. It
split in three resources:
- Transfer: this describes the movement of funds between Stripe accounts
and is specific to Stripe Connect.
- Payout: this describes the movement of funds from a Stripe account to a
bank account, debit card or any future payout method.
- RecipientTransfer: this describes the movement of funds from a Stripe
account to a Recipient's card or Bank Account. This is here for legacy
reasons and can only be accessed from an expanded BalanceTransaction.
This change is behind an API version so old API versions would still use
the Transfer object for everything while new API version would see the
split.
This applies beyond the new object as some properties/methods are removed
from Transfer and other properties are renamed on other objects.
