What happened to beta.13, beta.14, and beta.15? All unfortunately suffered
from problems that made it either impossible or unwise to upgrade to those
versions.
This command builds the app with a different directory for
`.meteor/local`, including built packages and the app database. This
allows running `meteor test-app` and `meteor test` in parallel
for a given app, with DB isolation.
Also, we've changed how test driver packages work (as used for
`meteor test-packages`, like "test-in-browser"). Instead of automatically
running tests when they load, they export a `runTests` function that
you should call when you're ready to run tests.
When running `meteor test-app` or `meteor test-packages` a new additional
last line of code is added that calls `Meteor.startup(...runTests()...)`
TODO:
* Implement `testOnly` packages. The current pattern of reading a global
from `package.js` won't work for published packages, which are stored
as metadata, not code.
* Let you choose a test driver package as an argument to `meteor test-app`
* Demonstrate that a Mocha test and driver package are possible to write.
* Expose Meteor.isTest, Meteor.isIntegrationTest, Meteor.isUnitTest
* Implement `meteor test-app --unit` which only loads test files
* `meteor test-app` should load ALL *.tests?.* files, including ones
inside imports/ directories
