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index.js
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index.js
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'use strict';
var sinon = require('sinon'),
events = require('events'),
Module = require('module'),
_ = require('underscore'),
realMongoose = require('mongoose');
var mongoose = {};
module.exports = mongoose;
// do something a bit like proxyquire, but this ensures there is only ever
// one instance of mongoose, which is good for npm link.
var originalLoad = Module._load;
Module._load = function (path, module){
return (path==="mongoose") ? mongoose : originalLoad(path, module);
};
// Mongoose-mock emits events
// when Models or Documents are created.
// This allows for the mock injector to get notifications
// about use of the mock and get a chance to access
// the mocked models and document produced.
events.EventEmitter.call(mongoose);
mongoose.__proto__ = events.EventEmitter.prototype; // jshint ignore:line
function stubWithNoThrowYeilds(sandbox){
// sinon.yeilds throws an error if no callback, but we dont want that...
var callbackArguments = [];
var returns = null;
var stub = sandbox.spy(function(){
for(var i=0; i< arguments.length; i++)if (typeof arguments[i] === "function") {
return arguments[i].apply(null, callbackArguments);
}
return returns;
});
stub.yields = function(){
callbackArguments = Array.prototype.slice.call(arguments, 0);
}
stub.returns = r => returns = r;
return stub;
}
// ## Schema
var Schema = function (schemaOptions) {
var subDocumentProperties = {};
_.each(schemaOptions, function(val, key) {
if (_.isArray(val) && val[0] && val[0]._mongooseMock_isSchema) {
subDocumentProperties[key] = true;
}
});
function Model(properties) {
var self = this;
if (properties) {
Object.keys(properties).forEach(function (key) {
self[key] = properties[key];
});
}
Object.keys(subDocumentProperties).forEach(function(key) {
if (!self[key]) {
self[key] = [];
}
var val = self[key]
self[key].id = function(id) {
var match;
if (this.forEach) {
match = _.find(this, function(item) {
return item._id && item._id.equals && item._id.equals(id);
});
}
return match;
};
});
this.save = stubWithNoThrowYeilds(Model._sandbox);
this.increment = stubWithNoThrowYeilds(Model._sandbox);
this.remove = stubWithNoThrowYeilds(Model._sandbox);
this.save.returns(Promise.resolve(this));
this.increment.returns(Promise.resolve(this));
this.remove.returns(Promise.resolve(this));
this.toObject = this.toJSON = () => {
var ret = Object.assign({}, this);
delete ret.save;
delete ret.increment;
delete ret.remove;
delete ret.toObject;
delete ret.toJSON;
return ret;
}
mongoose.emit('document', this);
}
Model.statics = {};
Model.methods = {};
Model.options = {};
Model.discriminator = createModelFromSchema;
Model._mongooseMock_isSchema = true;
Model.useSandbox = function(sb){
Model._sandbox = sb;
Model.static = Model._sandbox.stub();
Model.method = Model._sandbox.stub();
Model.pre = Model._sandbox.stub();
Model.path = Model._sandbox.stub();
Model.post = Model._sandbox.stub();
Model.add = Model._sandbox.stub();
Model.plugin = Model._sandbox.spy(()=>null);
Model.path.returns({
validate: Model._sandbox.stub(),
discriminator: Model._sandbox.stub()
});
Model.then = x => Promise.resolve(x(Model.then.resolves()));
Model.then.resolves = x => "you need to set mockModel.then.resolves = x => 'bla' ";
Model.virtual = function () {
function SetterGetter() {
var _set = Model._sandbox.stub();
var _get = Model._sandbox.stub();
var _ret = { set: _set, get: _set };
_set.returns(_ret);
_get.returns(_ret);
return _ret;
}
return new SetterGetter();
};
[
'aggregate',
'allowDiskUse',
'clone',
'count',
'create',
'distinct',
'ensureIndexes',
'exec',
'find',
'findById',
'findByIdAndRemove',
'findByIdAndUpdate',
'findOne',
'findOneAndRemove',
'findOneAndUpdate',
'geoNear',
'geoSearch',
'index',
'limit',
'lean',
'on',
'mapReduce',
'populate',
'remove',
'select',
'set',
'sort',
'update',
'where',
'insertMany'
].forEach(function (fn) {
var stub = stubWithNoThrowYeilds(Model._sandbox);
stub.yields(null, null)
stub.returns(Model);
Model[fn] = stub;
});
Model.update.yields(null, {n: 1});
Model.collection = {};
[
'find',
'update',
'insert',
'remove'
].forEach(function (fn) {
var stub = stubWithNoThrowYeilds(Model._sandbox);
stub.yields(null, null)
stub.returns(Model.collection);
Model.collection[fn] = stub;
});
}
Model.useSandbox(sinon);
mongoose.emit('model', Model);
return Model;
};
// compiled models are stored in models_
// and may be retrieved by name.
var models_ = {};
function createModelFromSchema(name, Type) {
if (!Type) {
return models_[name];
}
if (Type.statics) {
Object.keys(Type.statics).forEach(function (key) {
Type[key] = Type.statics[key];
});
}
if (Type.methods) {
Object.keys(Type.methods).forEach(function (key) {
Type.prototype[key] = Type.methods[key];
});
}
models_[name] = Type;
return models_[name];
}
Schema.Types = { ObjectId: realMongoose.Schema.Types.ObjectId }; // Defining mongoose types as dummies.
mongoose.Schema = Schema;
mongoose.Types = { ObjectId: realMongoose.Types.ObjectId };
mongoose.model = createModelFromSchema;
mongoose.getModelsList = function() {return Object.keys(models_)};
mongoose.set = sinon.stub();
mongoose.connect = sinon.stub();
mongoose.connection = {
once: sinon.spy(),
on: sinon.spy(),
useDb: (name) => mongoose
};