Expect Any And Anything And Array Containing

// expect.anything() => Anything But Undefined + Null

test("Expect Anything", () => {
  let x = "A";
  expect("Osama").toEqual(expect.anything());
  expect(1).toEqual(expect.anything());
  expect([1, 2, 3, 4]).toEqual(expect.anything());
  expect(x).toEqual(expect.anything());
});

// expect.any(Constructor)

test("Expect Any Constructor", () => {
  expect("Osama").toEqual(expect.any(String));
});

// expect.arrayContaining(array)

test("Expect Array To Be Found In The Main Array", () => {
  const myArray = [1, 2, 3, 4, 5, 6];
  expect(myArray).toEqual(expect.arrayContaining([5, 3, 4, 6]));
});