Tagless components issue on beta and canary

[mike183]

A TypeError is triggered when attempting to use a tagless component, although it only seems to occur when the component has no JS file. Creating a JS file for the component makes the issue disappear.

The issue seems to have been introduced in this PR: #12503

Error:
Uncaught TypeError: Cannot read property 'lookup' of undefined

Twiddle showing error (No JS file):
https://ember-twiddle.com/aeb614b5b753fd9f562c

Twiddle with no error (Includes JS file):
https://ember-twiddle.com/33793eecdd0026d524a1

[tim-evans]

Found this as well. It seems that the owner property on the RenderEnv isn't being set for tests.

[tim-evans]

I've tracked it down to 9845a9a. Tests pass before this commit and fail afterwards. It may be that https://github.com/switchfly/ember-test-helpers/tree/master/lib/ember-test-helpers needs an update to handle this. (I'm not sure).

[tim-evans]

See #12555 for the checklist of this feature.

[rwjblue]

It seems that the owner property on the RenderEnv isn't being set for tests.

Yes, ember-test-helpers definitely needs a few tweaks to work with canary, but the `owner` issue should not affect the beta branch (which is also demonstrating the issue).

[tim-evans]

Super! Anything I can do to help with this @rwjblue ?

[tim-evans]

The following configuration should fix this:

package.json

  "ember-cli-qunit": "0.3.14"

bower.json

  "ember": "ember#canary",
  "ember-data": "ember-data#canary"

[rwjblue]

Ok, closing for now.