fun <T> AssertionContainer<T>.createDescriptiveAssertion(description: Translatable, representation: Any?, test: (T) -> Boolean): Assertion (source)
Creates a DescriptiveAssertion based on the given description, representation and test.
Notice, if you want to use text (a String which is treated as raw string in reporting) as representation, then wrap it into a Text and pass it instead.
description - The description of the assertion, e.g. to Be