w3bdesign / exercism

import { isPangram } from "./pangram";

describe("Pangram()", () => {

  test("empty sentence", () => {

    expect(isPangram("")).toBe(false);

  });

  test("recognizes a perfect lower case pangram", () => {

    expect(isPangram("abcdefghijklmnopqrstuvwxyz")).toBe(true);

  });

  test("pangram with only lower case", () => {

    expect(isPangram("the quick brown fox jumps over the lazy dog")).toBe(true);

  });

  test("missing character 'x'", () => {

    expect(

      isPangram("a quick movement of the enemy will jeopardize five gunboats")

    ).toBe(false);

  });

  test("another missing character, e.g. 'h'", () => {

    expect(isPangram("five boxing wizards jump quickly at it")).toBe(false);

  });

  test("pangram with underscores", () => {

    expect(isPangram("the_quick_brown_fox_jumps_over_the_lazy_dog")).toBe(true);

  });

  test("pangram with numbers", () => {

    expect(isPangram("the 1 quick brown fox jumps over the 2 lazy dogs")).toBe(

      true

    );

  });

  test("missing letters replaced by numbers", () => {

    expect(isPangram("7h3 qu1ck brown fox jumps ov3r 7h3 lazy dog")).toBe(

      false

    );

  });

  test("pangram with mixed case and punctuation", () => {

    expect(isPangram('"Five quacking Zephyrs jolt my wax bed."')).toBe(true);

  });

  test("upper and lower case versions of the same character should not be counted separately", () => {

    expect(isPangram("the quick brown fox jumps over with lazy FX")).toBe(

      false

    );

  });

});