Function left

packages/effect/test/Schema/SchemaTest.ts:299–307

* Verifies that the either is a `Left` with the expected value.

(either: Either.Either<R, L>, left: L)

       * Verifies that the either is a `Left` with the expected value.
       */
      left<R, const L>(either: Either.Either<R, L>, left: L) {
        if (Either.isLeft(either)) {
          deepStrictEqual(either.left, left)
        } else {
          // eslint-disable-next-line no-console
          console.log(either.right)
          fail(`expected a Left, got a Right: ${either.right}`)
        }
      },

      /**
       * Verifies that the either is a left with the expected value.