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unit-testingjasminesinon

Mock Third party library (Razorpay) in Angular Unit tests?

I am trying to test a function in one of my component which consists following two lines:

this.rzp1 = new Razorpay(orderDetails);
this.rzp1.open();

I am trying to understand how to mock Razorpay in my test cases for this function.

This is how I am declaring Razorpay in my component:

export declare var Razorpay: any;

I have already tried various methods like:

var stub = sinon.createStubInstance(MyConstructor)

Any leads will be helpful.

Solution

  • Why not use jasmine's built in spy facility instead of relying on another library (sinon)?

    In your before each block, you can do something like this:

    beforeEach(() => {
  jasmine.spyOnAllFunctions(Razorypay.prototype);
  Razorypay.prototype.open.and.returnValue('foo');
});

    You can find more information about spyOnAllFuntions in the documentation.