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kotlinlang

The `assertFalse` function in Kotlin test requires a non null boolean. What is the most idiomatic way to handle a nullable boolean?

`assertFalse(condition ?: true)` is one. We could also invert it and say `assertTrue(condition == false)` but honestly I wish I could just pass a nullable boolean. I'm not sure why we couldn't.

I would prefer the latter of the two. Maybe its because I use hamkrest where its just `assertThat(condition, equalTo(false))`

You can define own assertFalse that concider null as false, if it make sense for your usecase.
But it shouldn't be default behavior
Also official style guide recommends to use == instead of ?: for nullable booleans