Module-Structuring-and-Testing-Data/Sprint-3/2-practice-tdd/get-ordinal-number.test.js at dcb6554fca0a0b3608ea966eab0e643a1fb5ff68 · CodeYourFuture/Module-Structuring-and-Testing-Data · GitHub

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const getOrdinalNumber = require("./get-ordinal-number");

test("should append 'st' for numbers ending with 1, except those ending with 11", () => {
  expect(getOrdinalNumber(1)).toEqual("1st");
  expect(getOrdinalNumber(21)).toEqual("21st");
  expect(getOrdinalNumber(131)).toEqual("131st");
});

test("should append 'nd' for numbers ending with 2, except those ending with 12", () => {
  expect(getOrdinalNumber(2)).toEqual("2nd");
  expect(getOrdinalNumber(22)).toEqual("22nd");
  expect(getOrdinalNumber(132)).toEqual("132nd");
});

test("should append 'rd' for numbers ending with 3, except those ending with 13", () => {
  expect(getOrdinalNumber(3)).toEqual("3rd");
  expect(getOrdinalNumber(23)).toEqual("23rd");
  expect(getOrdinalNumber(133)).toEqual("133rd");
});

test("should append 'th' for numbers ending with 11, 12, and 13", () => {
  expect(getOrdinalNumber(11)).toEqual("11th");
  expect(getOrdinalNumber(12)).toEqual("12th");
  expect(getOrdinalNumber(13)).toEqual("13th");
  expect(getOrdinalNumber(111)).toEqual("111th");
  expect(getOrdinalNumber(112)).toEqual("112th");
  expect(getOrdinalNumber(113)).toEqual("113th");
});

test("should append 'th' for all other numbers", () => {
  expect(getOrdinalNumber(4)).toEqual("4th");
  expect(getOrdinalNumber(10)).toEqual("10th");
  expect(getOrdinalNumber(20)).toEqual("20th");
  expect(getOrdinalNumber(24)).toEqual("24th");
});