index.spec.ts

import meanMedianMode from ".";

describe("Mean, median, mode:", () => {
  test("should return { mean: 3.25, median: 3.5, mode: [1, 4] }", () => {
    const numArray = [1, 2, 3, 4, 5, 4, 6, 1];
    const expected = {
      mean: 3.25,
      median: 3.5,
      mode: [1, 4],
    };

    expect(meanMedianMode(numArray)).toEqual(expected);
  });

  test("should return { mean: 2.625, median: 2.5, mode: [0] }", () => {
    const numArray = [0, 1, 2, 3, 0, 4, 5, 6];
    const expected = {
      mean: 2.625,
      median: 2.5,
      mode: [0],
    };

    expect(meanMedianMode(numArray)).toEqual(expected);
  });

  test("should return { mean: 2.875, median: 3, mode: [1, 3, 4] }", () => {
    const numArray = [3, 5, 4, 4, 1, 1, 2, 3];
    const expected = {
      mean: 2.875,
      median: 3,
      mode: [1, 3, 4],
    };

    expect(meanMedianMode(numArray)).toEqual(expected);
  });
});