Central dispatch and worker dispatch share most of their code now by
inheriting from a new shared dispatch class.
Also, the format of passed messages has been altered to make it easier
to understand in a debugger.
The tests run using TinyWorker, which emulates web workers on Node.
There are quite a few quirks in that situation due to the differences
between Node and Webpack as well as the differences between TinyWorker
and real Web Workers.
The tests also exposed a few bugs in the dispatch system, which have now
been fixed. Most notably, if a method called through the dispatch system
throws an exception that exception will now be passed back to the
caller. Previously the exception would escape the dispatch system and
the caller would never hear any response at all.
When importing a project we know the file extension for each asset to be
loaded. This change provides that information to the storage system so
that we can load assets which don't use the default. For example, this
allows loading JPG-format backdrops.
In support of this change, there's a new function on `StringUtil` called
`splitFirst`, which splits a string on the first instance of a separator
character. This change includes unit tests for this new function.
When no Device Manager instance is present this test takes a long time
and can cause timeouts. We'll need to fake the HTTP requests if we want
to do this sort of test reliably.
- Attach the storage module to the VM for tests which load projects or
other assets.
- Move `import_sb2.js` from `test/unit/ into `test/integration` since it
now depends heavily on `scratch-storage`.
- Skip loading costumes when there is no renderer.
* Revert "Merge pull request #486 from rschamp/fix-filter-tests"
This reverts commit ba00db897f, reversing
changes made to 739c5deb63.
* Revert "Show Categories that use custom code to load (variables, procedures) (#483)"
This reverts commit 739c5deb63.
* Revert "Merge pull request #461 from rschamp/filter-toolbox"
This reverts commit 343b5bfe8e, reversing
changes made to 370f2c6a47.
