Version: 5.4

Arrow

This page lists all current matchers in the Kotest arrow matchers extension library.

To use this library you need to add io.kotest.extensions:kotest-assertions-arrow to your build.

note

In the case io.arrow-kt:arrow-core:arrow-version is not in your classpath, please add it. To prevent Unresolved Reference errors.

Option
`option.shouldBeSome()`	Asserts that the option is of type Some and returns value
`option.shouldBeSome(v)`	Asserts that the option is of type Some with value v
`option.shouldBeNone()`	Asserts that the option is of type None

Either
`either.shouldBeRight()`	Asserts that the either is of type Right and returns the Right value
`either.shouldBeRight(v)`	Asserts that the either is of type Right with specified value v
`either.shouldBeLeft()`	Asserts that the either is of type Left and returns the Left value
`either.shouldBeLeft(v)`	Asserts that the either is of type Left with specific value v

NonEmptyList
`nel.shouldContain(e)`	Asserts that the NonEmptyList contains the given element e
`nel.shouldContainAll(e1,e2,...,en)`	Asserts that the NonEmptyList contains all the given elements e1,e2,...,en
`nel.shouldContainNull()`	Asserts that the NonEmptyList contains at least one null
`nel.shouldContainNoNulls()`	Asserts that the NonEmptyList contains no nulls
`nel.shouldContainOnlyNulls()`	Asserts that the NonEmptyList contains only nulls or is empty
`nel.shouldHaveDuplicates()`	Asserts that the NonEmptyList has at least one duplicate
`nel.shouldBeSingleElement(e)`	Asserts that the NonEmptyList has a single element which is e
`nel.shouldBeSorted()`	Asserts that the NonEmptyList is sorted

Validated
`validated.shouldBeValid()`	Asserts that the validated is of type Valid and returns the Valid value
`validated.shouldBeValid(v)`	Asserts that the validated is of type Valid with specific value v
`validated.shouldBeInvalid()`	Asserts that the validated is of type Invalid and returns the Invalid value