CODEWITHSUNDEEP
javascriptangularjsunit-testingmockingjasmine
Sagie
Sagie

Reputation: 1074

How to test angular service with dependencies using jasmine?

I have service that looks like that:

angular.module('app').service('MyService' , function (dependency1, dependency2, dependency3 ...) {
    function funcToTest() {
        // Do something
    }
}

How could I inject a specific dependency to the service? For example, I want to inject only dependency2 to my service and I don't care about the other dependencies.

Upvotes: 2

Views: 3059

Answers (2)

tanmay
tanmay

Reputation: 7911

Unlike unit-testing Angular controllers, we have no way of directly passing dependencies. This is where $provide service comes to rescue!

Here's a sample example:

beforeEach(module('myApp', function ($provide) {

    mockDependecy2 = {
        mockFunction: function() {}
    };

    $provide.value('dependency2', mockDependecy2);
}));

Then, you can write your specs normally:

beforeEach(inject(function(_MyService_, ...) {
    ...
    MyService = _MyService_;
}));

describe("...", function() {
    it("...", function() {
        MyService.funcToTest();
        // write expect statements here
    })
})

As seen in the example, you can (optionally) enclose them with underscores which are ignored by the injector when the reference name is resolved.

Upvotes: 2

Shahzad
Shahzad

Reputation: 1703

This will automatically inject dependency2 in your service wherever it is used

var dependency2;

beforeEach(function () {
    inject(function (dependency2){
        dependency2 = dependency2;
    });
}

Upvotes: 0

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