CODEWITHSUNDEEP
javascriptangulartypescriptjasminekarma-jasmine
Janani Sridhar
Janani Sridhar

Reputation: 44

How to write simple jasmine and karma test for angular project for addition of object to an object array

I have created a normal employee project in angular and need to test the addproduct function. How should I write a test case for this. I don't use service it is a simple push functionality. Any help on this will be helpful

public products = [{
     name:"Moto G5",
     quantity:2
  },
  {
     name:"Racold Geyser",
     quantity:3 
  }];

  addproduct(name: string,quantity:number) {

      var details = {name:name,quantity:quantity};
      this.products.push(details);

  }

Upvotes: 1

Views: 861

Answers (2)

Janani Sridhar
Janani Sridhar

Reputation: 44

@shashank Vivek thanks for your answer. The below code worked for me in testing the add product method to test whether we are able to add the product to the already existing array of objects.

it('should be created', () => {
  component.products.length = 2;
  component.addproduct("test",1);  
  expect(component.products.length).toBe(3);
  expect(component.products[2].name).toBe("test");
});

Upvotes: 1

Shashank Vivek
Shashank Vivek

Reputation: 17504

To test such functions, you should try below block:


it('should be created', () => {
  component.products.length = 2;
  component.addproduct("test",1);  
  expect(component.products.length).toBe(3);
  expect(component.products[2].name).toBe("test");
});

Since you are new to Angular testing, I would strongly recommend you to read this article which has some more links in the last paragraph.

It would surely help you to understand testing in a very easy yet standard way.

Happy Testing !

Upvotes: 1

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