spec test example

gistfile1.txt

//import {math} from './math.js';

// 6 Assume that there is a `math.js` file that performs various mathematical operations on pairs of integers. Design a Jasmine suite with the following unit tests.
// - A spec for the addition(+) operation. (test.add(num1, num2))
// - A spec for the subtraction(-) operation. (test.subtract(num1, num2))
// - A spec for the multiplication(*) operation. (test.multiply(num1,num2))
// - A spec for the division(/) operation. (test.divide(num1, num2))
// - A spec to throw an error if an operation tries to divide by zero.

//add the associated specs under each comment
//the functions are implemented by calling the object test and then the method (test.add(num1,num2))

//Spec for addition operation
//Spec for subtraction operation
//Spec for multiplication operation
//Spec for division operation
//Spec for throwing an error if there is a divide by zero

describe("math", () => {
let test;

beforeEach( () => {
test = new math();
});

describe('testing basic math operations', () => {
  it("should sum two numbers", () => {
    expect(test.add(2, 2)).toEqual(4);
  });

  it("should give result of subracting one number from another", () => {
    expect(test.subtract(10, 5)).toEqual(5);
  });

  it("should give result of multiplying two numbers", () => {
    expect(test.multiply(5, 5)).toEqual(25);
  });

  it("should give result of division", () => {
    expect(test.divide(10, 5)).toEqual(2);
    expect(test.divide(5, 0)).toThrowError();
  })
});
});