Opal-RSpec Changelog

1.0.0 - 2022-11-24

Drop support for anything below Opal v1.6.alpha1
Update to the latest RSpec versions
Vendor-in diff-lcs
Rework the async logic to use the await feature of Opal
- If you use async features, it's crucial to use a # await: *await* magic comment (this will cause any call to a method containing an await word to be compiled with an await ES8 keyword)
- Both let and subject that return a promise (ie. are async) must be referenced with an .await method
- In around blocks, you must call example.run_await instead of just example.run
- Only PromiseV2 is supported (PromiseV1 may work, but you should migrate your application to use PromiseV2 nevertheless, in Opal 2.0 it will become the default)
Drop a requirement of opal-sprockets
- Sprockets support is still provided, but you need to manually require "opal/rspec/sprockets"

Support for Opal 0.8/0.9 removed
Opal 0.10 support
Arity checking enabled by default
Dropped support for PhantomJS < 2.0
Removed Kernel#caller monkey patch so test file/line metadata is only available if supplied via test metadata or for failures. Should improve performance since an exception isn't thrown for every test to gather the data

By default, any subject, it example block, before(:each), after(:each), and around that returns a promise will be executed asynchronously. Async is NOT yet supported for context level hooks. Async approach from < 0.4.3 will still work.
Update to RSpec 3.1 (core is 3.1.7, expectations/support 3.1.2, mocks 3.1.3)
Opal 0.9 compatibility
A lot more aspects of RSpec should work now as 20+ Opal pull requests were completed from opal-rspec work
Remove copy of source from opal-rspec git repo (and just rely on git submodule fetch)
Rake task improvements:
- supports passing a test pattern (include and exclude) and FileLists besides 'spec/**/*_spec.rb
- colors, formatter, and additional requires can be supplied from the command line via the SPEC_OPTS environment variable
Formatters:
- Fixed issues with RSpec's BaseTextFormatter and made ProgressFormatter the default when run via the Rake task
- Fix redundant messages with expectation fails
- Browser formatter now works w/ progress bar and has a 'Dump to console' link that will put a clickable stack trace for a failed example in the browser console
- JSON formatter supported
Fixed issues with constants/example group naming
Basic nodejs runner support
A lot more matchers enabled

PhantomJS 2.0 compatibility (also still compatible with 1.9.8). Thanks to @aost. Closes out https://github.com/opal/opal-rspec/issues/42