Function assertSpan

packages/effect/test/Array.test.ts:188–196

(
        input: Iterable<number>,
        expectedInit: ReadonlyArray<number>,
        expectedRest: ReadonlyArray<number>
      )

    it("span", () => {
      const f = Arr.span<number>((n) => n % 2 === 1)
      const assertSpan = (
        input: Iterable<number>,
        expectedInit: ReadonlyArray<number>,
        expectedRest: ReadonlyArray<number>
      ) => {
        const [init, rest] = f(input)
        deepStrictEqual(init, expectedInit)
        deepStrictEqual(rest, expectedRest)
      }
      assertSpan([1, 3, 2, 4, 5], [1, 3], [2, 4, 5])
      assertSpan(Arr.empty(), Arr.empty(), Arr.empty())
      assertSpan([1, 3], [1, 3], Arr.empty())