val <K, T : Map<out K, *>> Expect<T>.keys: Expect<Set<K>>
Creates an Expect for the property Map.keys of the subject of the assertion, so that further fluent calls are assertions about it.
Return
The newly created Expect for the feature.
fun <K, V, T : Map<out K, V>> Expect<T>.keys(assertionCreator: Expect<Set<K>>.() -> Unit): Expect<T>
Expects that the property Map.keys of the subject of the assertion holds all assertions the given assertionCreator creates for it and returns this assertion container.
AssertionError - Might throw an AssertionError if the assertion made is not correct.
Return
This assertion container to support a fluent API.