The network controller method `setProviderType` is now async, and the
async operation `_setProviderConfig` called at the end of the method is
now awaited.
Because the only async operation was the last step, this should have no
impact upon the flow of execution. The only functional change is that
now any callers have the option of waiting until the network switch
operation has completed.
One such change was made, in the `switch-ethereum-chain` middleware. As
a result, an error thrown while the network is switching will now
be thrown in this middleware and returned to the dapp as an internal
error.
Relates to https://github.com/MetaMask/metamask-extension/issues/18587
Internal network controller methods and fields are now private fields,
using the JavaScript `#` syntax rather than the `private` TypeScript
keyword or a leading underscore.
The one reference to a private field was in the preferences controller
unit tests. Fortunately it was being used to create a test fixture that
was unused. The unnecessary test fixtures have been removed from that
test suite.
Fixes https://github.com/MetaMask/metamask-extension/issues/18588
* Remove the network controller `previousProviderStore`
The `previousProvider` network controller state has been replaced with
a private internal property. This was only used internally, it did not
need to be part of state.
This relates to https://github.com/MetaMask/metamask-extension/issues/18303
* Remove redundant tests
This helps us more easily compare the unit tests for NetworkController
in this repo and the NetworkController in the `core` repo.
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: legobeat <109787230+legobeat@users.noreply.github.com>
