README.md

failing tests fail, passing tests pass.

AngularJS HttpPromise methods (.success and .error) break the promise chain.

It is advisable to stick with classic Promise methods: .then and .catch.

More details in my blog post about this.

failing.spec.es6

describe("foo", () => {
    var $httpBackend;
    var $http;
    var $q;
    var calledFunction = sinon.spy();

    beforeEach(inject((_$httpBackend_, _$http_, _$q_) => {
        $httpBackend = _$httpBackend_;
        $http = _$http_;
        $q = _$q_;
    }));

    it(`trigger error callback with rejection returned from HttpPromise.success`, () => {
        $http.get("/foo")
            .success(_ => $q.reject())
            .error(calledFunction);

        $httpBackend.expectGET("/foo").respond(200);

        $httpBackend.flush();

        expect(calledFunction).to.have.been.called;
    });

    it(`chain new promise value with returned promise resolution`, () => {
        var value = "a new value";
        $http.get("/foo")
            .success(_ => $q.when(value))
            .success(chainedValue => calledFunction(chainedValue));

        $httpBackend.expectGET("/foo").respond(200, "not a new value");

        $httpBackend.flush();

        expect(calledFunction).to.have.been.calledWith(value);
    });
});

karma.conf.js

module.exports = function (config) {
    config.set({
        frameworks: ["mocha", "chai-sinon"],
        files: [
            "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.0/angular.min.js",
            "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.0/angular-mocks.js",
            "*.spec.es6",
        ],
        browsers: ["PhantomJS"],
        plugins: [
            "karma-mocha",
            "karma-chai-sinon",
            "karma-phantomjs-launcher",
            "karma-babel-preprocessor",
        ],
        preprocessors: {
            "*.spec.es6": ["babel"],
        },
    });
};

package.json

{
  "dependencies": {
    "chai": "^2.3.0",
    "karma": "^0.12.31",
    "karma-babel-preprocessor": "^5.2.1",
    "karma-chai-sinon": "^0.1.4",
    "karma-mocha": "^0.1.10",
    "karma-phantomjs-launcher": "^0.1.4",
    "mocha": "^2.2.4",
    "sinon": "^1.14.1",
    "sinon-chai": "^2.7.0",
    "babel": "^5.4.7"
  }
}

passing.spec.es6

describe("foo", () => {
    var $httpBackend;
    var $http;
    var $q;
    var calledFunction = sinon.spy();

    beforeEach(inject((_$httpBackend_, _$http_, _$q_) => {
        $httpBackend = _$httpBackend_;
        $http = _$http_;
        $q = _$q_;
    }));

    it(`trigger error callback with rejection returned from HttpPromise.success`, () => {
        $http.get("/foo")
            .then(_ => $q.reject())
            .catch(calledFunction);

        $httpBackend.expectGET("/foo").respond(200);

        $httpBackend.flush();

        expect(calledFunction).to.have.been.called;
    });

    it(`chain new promise value with returned promise resolution`, () => {
        var value = "a new value";
        $http.get("/foo")
            .then(_ => $q.when(value))
            .then(chainedValue => calledFunction(chainedValue));

        $httpBackend.expectGET("/foo").respond(200, "not a new value");

        $httpBackend.flush();

        expect(calledFunction).to.have.been.calledWith(value);
    });
});