Function assertLeft

packages/effect/test/util.ts:136–142

(
  either: Either.Either<R, L>,
  expected: L,
  ..._: Array<never>
)

// ----------------------------

export function assertLeft<R, L>(
  either: Either.Either<R, L>,
  expected: L,
  ..._: Array<never>
): asserts either is Either.Left<L, never> {
  deepStrictEqual(either, Either.left(expected))
}

export function assertRight<R, L>(
  either: Either.Either<R, L>,