The network controller has some tests, but they are incomplete and don't
follow our latest best practices for writing unit tests.
This commit greatly increases the amount of test coverage for the API
that we want to retain in NetworkController, in particular the seemingly
myriad paths that the code takes starting from `initializeProvider`,
`resetConnection`, `setRpcTarget`, `setProviderType`,
`rollbackToPreviousProvider`, and `lookupNetwork`.
There were a couple of pieces of logic I noted which don't seem to have
any effect due to being redundant or unreachable, but they also don't
make our lives more difficult, either, so I opted to leave them in.
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: Zachary Belford <belfordz66@gmail.com>
Add tests for the `block-tracker-inspector` middleware — which makes
sure that the block tracker never has a reference to the latest block
which is less than a block number that shows up in an RPC method's
response — and the Infura middleware — which takes care of sending the
request to Infura, and will retry the request up to 5 times if Infura
sends back a certain type of error.
Note that the `retry-on-empty` middleware is not tested because it
currently has a [bug][1] which is making it ineffective.
[1]: https://github.com/MetaMask/eth-json-rpc-middleware/issues/139
* Swaps: Show a network name dynamically in a tooltip
* Replace “Ethereum” with “$1”, change “Test” to “Testnet”
* Replace 이더리움 with $1
* Translate network names, use ‘Ethereum’ by default if a translation is not available yet
* Reorder messages to resolve ESLint issues
* Add a snapshot test for the FeeCard component, increase Jest threshold
* Enable snapshot testing into external .snap files in ESLint
* Add the “networkNameEthereum” key in ko/messages.json, remove default “Ethereum” value
* Throw an error if chain ID is not supported by the Swaps feature
* Use string literals when calling the `t` fn,
* Watch Jest tests silently (no React warnings in terminal, only errors)
* Add @testing-library/jest-dom, import it before running Jest tests
* Add snapshot testing of Swaps’ React components for happy paths, increase minimum threshold for Jest
* Add the test/jest folder for Jest setup and shared functions, use it in Swaps Jest tests
* Fix ESLint issues, update linting config
* Enable ESLint for .snap files (Jest snapshots), throw an error if a snapshot is bigger than 50 lines
* Don’t run lint:fix for .snap files
* Move `createProps` outside of `describe` blocks, move store creation inside tests
* Use translations instead of keys, update a rendering function to load translations
* Make sure all Jest snapshots are shorter than 50 lines (default limit)
* Add / update props for Swaps tests
* Fix React warnings when running tests for Swaps
