[Vue] Suppress unit test warnings

[addy-pathania]

Clear unit test warning on console for sitecore-jss-vue package by mocking warn.

Description / Motivation

Testing Details

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

[illiakovalenko]

I would suggest you to check how to add an additional pre-setup script (jest provides configuration) and mock warn in a one place. And I think that we don't need to fully disable warn, let's disable only specific message which is impossible to fix

[illiakovalenko]

@sc-addypathania Could you, please, mock only specific message that you would like to hide?

[addy-pathania]

@sc-addypathania Could you, please, mock only specific message that you would like to hide?

@illiakovalenko What if there are multiple different warning messages?
Please check the latest commit, if that's what you're referring to.

[illiakovalenko]

@sc-addypathania Did you investigate these warnings? May be some unit tests should be adjusted or it's expected to be in some test cases?