val <K, T : Pair<K, *>> Expect<T>.first: Expect<K> (source)
Creates an Expect for the property Pair.first of the subject of the assertion, so that further fluent calls are assertions about it.
Return
The newly created Expect.
infix fun <K, V, T : Pair<K, V>> Expect<T>.first(assertionCreator: Expect<K>.() -> Unit): Expect<T> (source)
Expects that the property Pair.first 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.