adding custom Matchers in Jasmine 2.1.3

[Nathan Sinclair]

Hello,

I've been searching the group for some advice about adding custom matchers in Jasmine 2.1.3, and because i guess the problem may be specific to my situation, here's what i've done.

this is the matcher;

this.addMatchers({
            toBeAGoodInvestment = function () {
                var investment = this.actual;
                return investment.isGood();
            };
        });

for clarification isGood() is a prototype function of the Investment class. it returns good if an investment increases in stockPrice.

the expectation is written like this

expect(investment).toBeAGoodInvestment();

I tried to add the Matcher in the SpecHelper.js file, when I tried running the SpecHelper page, it through up an error saying

expect(...).toBePlaying is not a function in file:///H:/njs236/Desktop/GitHub/rocketreading/spec/PlayerSpec.js (entirely unrelated to the function that I'm trying to implement.

So I removed it from there, and the other Matcher ran as it should.

Then I put it in a beforeEach = function () in the actual spec file. Whenever I do this it removes the set of tests run from SpecHelper.html

I looked at the advice of someone from the group, to put a reference to the Custom Matcher in the spec, but it doesn't show up when you run the page.

If I disable the toBePlaying custom Matcher in SpecHelper.js and don't have the toBeAGoodInvestment function, when I run the page it says

expect(...).toBeAGoodInvestment is not a function in file:///H:/njs236/Desktop/GitHub/rocketreading/spec/InvestmentSpec.js

obviously this is the only situation where any seem to work together (but the tests fail)

if I put it in the InvestmentSpec.js file, it won't display any tests that are given in this file.

Looking forward to hearing your thoughts.

Nathan

[Gregg Van Hove]

The matcher code you've given looks like it is for jasmine 1.3.x. The syntax for adding matchers changed in 2.0. The docs for upgrading are here: http://jasmine.github.io/2.0/upgrading.html

Hope that helps.

-Gregg

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