While running a test
ember-source: 2.12.0
ember-data: 2.12.0
ember-cli: 2.12.0


Is it possible to create a demo showing the error? Either in ember-twiddle.com or a ember-cli app repo would work...
Yeah I should have done that before putting this up :( I haven't been able to reproduce that error with a new app, but will keep debugging and playing around this weekend and open again/comment if I come to any solutions.
Ran into this cryptic issue ~when trying to do store.createRecord() in a component integration test.~
~Managed to work around it by using store.push() instead.~
This issue is caused by console.log! :scream:
Testem's sendMessageToIframe intercepts console.log and tries to JSON.stringify(decycle(message, this.eventMaxDepth)), message is a JSON-like object that contains an array of arguments originally passed to console.log.
Some arguments cause decycle to crash, you can see it in the trace of the top comment.
~This may be related: https://github.com/testem/testem/issues/962~
It's not related.
Started a new issue: https://github.com/testem/testem/issues/1105.
Most helpful comment
This issue is caused by
console.log! :scream:Testem's
sendMessageToIframeinterceptsconsole.logand tries toJSON.stringify(decycle(message, this.eventMaxDepth)),messageis a JSON-like object that contains an array of arguments originally passed toconsole.log.Some arguments cause
decycleto crash, you can see it in the trace of the top comment.