Unit testing with Jest and React Testing Library

example.test.js

beforeAll(() => {
   console.log("This statement will get executed before all the test cases");
});

afterAll(() => {
   console.log("This statement will get executed after all the test cases");
});

describe("test suite", () => {
   beforeEach(() => {
      console.log("This statement will get executed before each test case");
   });
   
   afterEach(() => {
      console.log("This statement will get executed after each test case");
   });
   
   it("first test", () => {
      expect(1).toBe(1);
   });

   // alternative to it
   test("second test", () => {
      expect(1).not.toBe(2);
   });
});