Stubbing a class method with Sinon.js

Question

I am trying to stub a method using sinon.js but I get the following error:

Uncaught TypeError: Attempted to wrap undefined property sample_pressure as function

Answer 1

The top answer is deprecated. You should now use:

sinon.stub(YourClass.prototype, 'myMethod').callsFake(() => {
    return {}
})

Or for static methods:

sinon.stub(YourClass, 'myStaticMethod').callsFake(() => {
    return {}
})

Or for simple cases just use returns:

sinon.stub(YourClass.prototype, 'myMethod').returns({})

sinon.stub(YourClass, 'myStaticMethod').returns({})

Or if you want to stub a method for an instance:

const yourClassInstance = new YourClass();
sinon.stub(yourClassInstance, 'myMethod').returns({})