Different snapshot with --coverage

I am currently using jest-preset-angular@7.0.0-alpha.2 and our CI builds started to failing due to different snapshot when using jest with --coverage:

-                   ng-reflect-product-filter="function (product) { return pr"
+                   ng-reflect-product-filter="function (product) {
+            "

This started to happend when I upgraded to version 7 which uses ts-jest. Not sure who is responsible for serializing components. There is similar issue, but I don’t see anything related to istanbul in my snapshot.

[Ludevik]

@thymikee this was just simplest example i could think of. In my real setup i don’t serialize the function to html directly, but it is an @Input to other component and serialization is just side effect. It looks something like this:

@Component({
	selector: 'test',
	template: '<child-component [predicate]="predicate"></child-component>'
})
class TestComponent {
    get predicate(): () => boolean {
        return Predicates.doSomething;
    }
}

Current behaviour doesn’t allow to snapshot test a component which uses some other component with function @Inputs when used together with coverage. There are currently component libraries out there which use functions as inputs.

I’ll try to write the serializer and see how far i can get 😉

[thymikee]

@Ludevik always learning, that’s the attitude! I could’ve at least pushed the tag but forgot about it as I made a release during my time off 😅