Assert not null or specific object type for further assertions on an object

Say:

val obj: Person? = ....
obj shouldNotBeNullAnd {
    it.name shouldBe "b"
    it.age shouldNotBe 43
}

This should and assert that Person is not null, and provide the ability to check the non-null result. This could also probably be done with Kotlin Contracts, just by doing a null assertion before other assertions. The difference between this and result!! should { } is that the previous is an actual assertion and the latter is a runtime failure.

Something similar could possibly done for shouldBeInstanceOf to make assertions on the already casted instance.

[LeoColman]

@dave08 As this discussion won’t be including Kotlin Contracts for now, please submit a feature request to add a lambda parameter to shouldBeInstanceOf for us to discuss it better.

For now I’ll be closing this, as this feature was implemented and merged in the 3.3 branch.

[LeoColman]

shouldBeInstanceOf<Foo> is already reified. It’s a currently unsupported feature 😕