type of in jest testing code example
Example: different types of unit testing in jest
describe('in the math global object', () => {
describe('the random function', () => {
it('should return a number', () => {
expect(typeof Math.random()).toEqual('number');
})
it('should return a number between 0 and 1', () => {
const randomNumber = Math.random();
expect(randomNumber).toBeGreaterThanOrEqual(0);
expect(randomNumber).toBeLessThan(1);
})
});
describe('the round function', () => {
it('should return a rounded value of 4.5 being 5', () => {
expect(Math.round(4.5)).toBe(5);
})
});
})