CODEWITHSUNDEEP
javascriptjasminejasmine2.0
tallpaul
tallpaul

Reputation: 1513

How to spyOn a global function and return a value in Jasmine

How can I spy on MyFunction and return 2 in Jasmine 2.0?

I have the following code that errors on the first line inside shouldPass with:

Error: function MyFunction(){ return 1; }() method does not exist

It appears to be using the entire function as the function name

MyFile.js:

MyFunctionToTest = function(){
    return MyFunction() + 1;
}

function MyFunction(){ return 1; }

MyFileSpec.js:

describe("myTest", function(){
    it("shouldPass", function(){
        spyOn("MyFile", MyFunction).and.returnValue(2);

        expect(MyFunctionToTest()).toEqual(3)
    })
})

Upvotes: 6

Views: 14095

Answers (1)

Seth Flowers
Seth Flowers

Reputation: 9190

You are trying to spy on an anonymous/global function. You can probably just redefine it with a spy.

MyFunction = jasmine.createSpy().and.returnValue(2);

Upvotes: 5

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