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Goals

Create a Realm RN test to reproduce the following seg fault:

https://gist.github.com/ashwinphatak/11660cd0111d3d72210ffdcfc86c4e81

<!--- What are you trying to achieve? -->

Expected Results

<!--- What did you expect to happen? -->
Realm API should throw a JS exception on invalid usage.

Actual Results

<!--- What happened instead? -->
<!--- e.g. the stack trace of a crash -->

App crashes when

1) During create, a relationship object is left undefined OR
2) A linked object is deleted

(1) OR (2) are not sufficient to cause the issue. We also need to setup a listener on the relevant collection. The crash seems to happen while propagating a change event to the listener callback.

Steps to Reproduce

So far I've only be able to reproduce this in a private app. One of the goals here is to create a failing test case for Realm RN.

Code Sample

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App code in which the crash can be reproduced consistently has been shared on RealmJS Slack channel.

Version of Realm and Tooling

• Realm JS SDK Version: 1.13.0
• Node or React Native: RN
• Client OS & Version: Ubuntu 16.04 LTS
• Which debugger for React Native: None