bindToComponentInputs unit test case failing

[ashutoshpaul]

Is there a way i can write test case using bindToComponentInputs in Angular? It would be helpful to answer with a basic example.
Lets say I have a route: /items/34/properties

I am fetching the id: 34 using @Input({ transform: numberAttribute }) id!: number in PropertiesComponent.

In properties.component.spec.ts file
Test cases written with the help of spectator. When i add a debugger in the ts component:

Expected result:
while running test case i should get id = 34

Actual result
while running test case id = undefined

Also, unit tests were running successfully when route.params.subscribe(...) was used.