import { removeDuplicates } from "./index"; describe("removeDuplicates", () => { it("should multiply all numbers of 2 arrays", () => { // Arrange const arr = [1, 2, 2, 2, 3, 3, 4]; // Act const result = removeDuplicates(arr); // Assert expect(result).toStrictEqual([1, 2, 3, 4]); }); });