engine.js

    HMDAEngine.isChildFI = function(respondentID) {
        var url = HMDAEngine.getAPIURL() + '/isChildFI/' + HMDAEngine.getRuleYear() + '/' + respondentID;
        var response = request('GET', url);
        var body = JSON.parse(response.getBody('utf8'));
        return body.result;
    };

engineSpec.js

    describe('isChildFI', function() {
        it('should return true when API response result is true', function(done) {
            var respondentID = '1';
            var path = '/isChildFI/'+engine.getRuleYear()+'/'+respondentID;
            var handler = mockAPI.get(path).reply(200, JSON.stringify({ result: true }));
            expect(engine.isChildFI(respondentID)).to.be.true();
            handler.done();
            done();
        });
    });