Plugins often change core behavior, and thereby cause core's tests to fail. In CI, we work around this problem by running core CI without any plugins loaded.
In development, the only option to safely run the core tests is to uninstall all plugins, which is clearly a bad developer experience. This commit aims to improve that experience.
The `qunit_skip_plugins=1` flag would previously prevent the plugin **tests** from running. This commit extends that flag to also affect the plugin's application JS.
When `EMBER_CLI_PLUGIN_ASSETS=1`, plugin application JS will be compiled via Ember CLI. In this mode, the existing `register_asset` API will cause any registered JS files to be made available in `/plugins/{plugin-name}_extra.js`. These 'extra' files will be loaded immediately after the plugin app JS file, so this should not affect functionality.
Plugin compilation in Ember CLI is implemented as an addon, similar to the existing 'admin' addon. We bypass the normal Ember CLI compilation process (which would add the JS to the main app bundle), and reroute the addon Broccoli tree into a separate JS file per-plugin. Previously, Sprockets would add compiled templates directly to `Ember.TEMPLATES`. Under Ember CLI, they are compiled into es6 modules. Some new logic in `discourse-boot.js` takes care of remapping the new module names into the old-style `Ember.TEMPLATES`.
This change has been designed to be a like-for-like replacement of the old plugin compilation system, so we do not expect any breakage. Even so, the environment variable flag will allow us to test this in a range of environments before enabling it by default.
A manual silence implementation is added for the build-time `ember-glimmer.link-to.positional-arguments` deprecation while we work on a better story for plugins.
Previously it would randomize the order only when running tests:
1 .through ember-exam
2. in browser, with no params
Running just core tests, or just plugins, or a single plugin, or with filter, etc. disabled randomization.
Now all those cases are covered.
This reverts commit f43bba8d59.
Adding randomness has introduced a lot of flakiness in our ember-cli tests. We should fix those issues at the source. However, given the upcoming stable release, this randomness has been reverted so that the stable release includes a stable test suite. Having a stable test suite on stable will make backporting future commits much easier.
Previously we were adding `/assets/discourse/tests/core_plugin_tests.js` to the test html all the time. This works in development mode, but fails silently when using testem via the `ember test` CLI, because there is no proxy running.
This commit makes a few changes to fix this, and make it more useful:
- Only renders the plugin `<script>` when in development mode, or when `LOAD_PLUGINS=1` (matching core's behavior)
- Only loads plugin translations based on the same logic
- When running via testem, and the above conditions are met, testem is configured to proxy `core_plugin_tests.js` through to a rails server. (port based on the `UNICORN_PORT` env variable)
- Adds a descriptive error if the plugin `<script>` fails to load. This can happen if the rails server hasn't been started
- Updates the logic for testem browsers. Ember CLI always launches testem in "CI" mode, and we don't really want 3 browsers opening by default. Our CI explicitly specifies the 3 browsers at runtime
This reverts commit 2c7906999a.
The changes break some things in local development (putting JS files
into minified files, not allowing debugger, and others)
This reverts commit ea84a82f77.
This is causing problems with `/theme-qunit` on legacy, non-ember-cli production sites. Reverting while we work on a fix
This is quite complex as it means that in production we have to build
Ember CLI test files and allow them to be used by our Rails application.
There is a fair bit of glue we can remove in the future once we move to
Ember CLI completely.
