Using arrow functions changes `this` context, which is undesired in tests, e.g. it makes it impossible to setup things like pretender (`this.server`) in `beforeEach` hooks.
Ember guides always use classic functions in examples (e.g. https://guides.emberjs.com/release/testing/test-types/), and that's what it uses in its own test suite, as do various addons and ember apps.
It was also already used in Discourse where `this` was required. Moving forward, it will be needed in more places as we migrate toward ember-cli.
(I might later add a custom rule to eslint-discourse-ember to enforce this)
Adding a video in composer and then continuing to type into it will make the
video element flicker and restart playback on every keystroke, as the preview
is rendered. In certain configurations, this can lead to some performance
problems too.
Onebox already does the same for external videos.
* FEATURE: when we fail to ship topic timings attempt to retry
This change amends it so
1. Topic timings are treated as background requests and subject to more
aggressive rate limits.
2. If we notice an error when we ship timings we back off exponentially
The commit allows 405, 429, 500, 501, 502, 503 and 504 errors to be retried.
500+ errors usually happen when self hosters are rebuilding or some other
weird condition.
405 happens when site is in readonly.
429 happens when user is rate limited.
The retry cadence is hardcoded in AJAX_FAILURE_DELAYS, longest delay is
40 seconds, we may consider enlarging it.
After the last delay passes we give up and do not write timings to the
server.
* Address feedback
- Omit promise, no need to use promises in sendNextConsolidatedTiming
- Correct issue where >= -1 was used and > -1 was intended
- Use objects for consolidated timings instead of Array
- Stop using shift/unshift and instead use push / pop which are faster
* Move consolidated timing initialization to constructor
* Remove TODO and just console.warn if we have an issue
I also took the opportunity with this commit to move some test specific
stuff out of `discourse-loader` which is loaded on the front end of the
application. The test module building now happens in the `test_helper`
bundle.
This is long overdue. We had a lot of (not linted) code to initialize
our test suite as part of the Ruby `test_helper.js` bundle.
This refactor moves that out to a `setup-tests` module, which imports
all the modules properly, rather than using `require`.
It also removes the global `server` variable which some tests were using
for pretender. Those tests are fixed, and in the case of widget tests,
support for a `pretend()` was added, which mimics our acceptance tests.
One problematic test was removed, which overwrites `/posts` - this could
break tons of other tests depending on order.
The prefixing logic is moved into a `prefixProtocol` function in lib:url.
This commit also renames an incorrectly named test and uses https as default instead of http, in 2020 it's reasonable to think we most likely want https and not http. User can still specify http if required.
These are tricky because `module.exports` is used by nodejs files as a
global, which is OK. But we don't want to allow `module` in JS tests
for qunit without importing it first.
We used many global functions to handle tests when they should be
imported like other libraries in our application. This also gets us
closer to the way Ember CLI prefers our tests to be laid out.
This is where they should be as far as ember is concerned. Note this is
a huge commit and we should be really careful everything continues to
work properly.
