Jasmine: mocking Bower library

I am trying to create a mock for testing a service that depends on another one managed by bower. The code for the Jasmine test is the following (full example at plunker):

describe('jsonrpc', function() {
    'use strict';

    var uuidMock, $httpBackend, jsonrpc;

    beforeEach(module('jsonrpc', function ($provide) {
        uuidMock = {};
        uuidMock.generate = function () { return 0; };
        $provide.value('uuid', uuidMock);
    }));

    beforeEach(inject(function(_jsonrpc_, _$httpBackend_) {
        jsonrpc = _jsonrpc_;
        $httpBackend = _$httpBackend_;
    }));

    it('should have created $httpBackend', function() {
        expect($httpBackend.get).toBeDefined();
    });

});

The 'jsonrpc' service provider is defined as follows:

angular.module('jsonrpc', ['uuid']).provider('jsonrpc', function() {
    'use strict';

    var defaults = this.defaults = {};
    defaults.basePath = '/rpc';

    this.$get = ['$http', 'uuid4', function($http, uuid4) {
        function jsonrpc(options, config) {

        ... (etc) ...

When I try to mock the dependency of the 'jsonrpc' module on the 'uuid' module, I get the following error:

$injector:modulerr http://ift.tt/1vSE4nV

What am I doing wrong when it comes to mock up that dependency?