Example of a simple service mock.

gistfile1.txt

    // MOCK SERVICES
    beforeEach(mock.module('app-name', function ($provide) {

        getContentData = require('../data/getContentData.json');
        getVersionsData = require('../data/getVersionsData.json');
        newPost = require('../data/newPost.json');
        fullPost = require('../data/fullPost.json');

        $provide.value('ContentSvc', {
            find: function(filter, options, cb) {
                return cb(error, getContentData);
            },
            findOne: function(id, cb) {
                return cb(error, getContentData[0]);
            },
            findVersions: function(filter, cb) {
                return cb(error, getVersionsData);
            },
            saveArticle: function(content, cb) {
                return cb(error);
            },
            addComment: function(article_id, comment, cb) {
                return cb(error);
            },
            deleteComment: function(article_id, comment, cb) {
                return cb(error);
            }
        });
    }));

The "error" you see is being set in the expect block so I could test with and without errors being generated.