bug: Ionic Angular schematic fails if test target options is missing an assets property

[brandonroberts]

Prequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Ionic Framework Version

• v4.x
• v5.x
• v6.x

Current Behavior

After creating an Nx workspace, running the ng add @ionic/angular command to setup Ionic for the default project fails. This is due to the test target options requiring an assets property. This property is not present in a new Nx workspace due to it using Jest instead of Karma.

Expected Behavior

The schematic completes successfully for projects not using Karma, or not using an assets property in the test target options.

Steps to Reproduce

1. Create a new Nx workspace

npx create-nx-workspace@latest nxionic --preset angular
cd nxionic

2. Run schematic to add Ionic

ng add @ionic/angular

3. Note the error

✔ Package successfully installed.
"ionicNgAdd" schema is using the keyword "id" which its support is deprecated. Use "$id" for schema ID.
Cannot read property 'push' of undefined

Code Reproduction URL

https://github.com/brandonroberts/nx-ionic-ng-add

Ionic Info

No response

Additional Information

I'll put in a PR to fix

[liamdebeasi]

Thanks for the issue. Can you reproduce this in a starter app and provide a link to the repo? I do not see this on my end.

[brandonroberts]

Yep, I added it to the issue

After cloning and installing the dependencies, when I run ng add @ionic/angular@latest or ng add @ionic/angular@next I get the error.