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• PHP: Simulate multiple MySQL connections to same database

  - by Varun

  An insert query is constantly getting logged in my MySQL slow query log. I want to see how much time the INSERT query is taking with 100 simultaneous insert operations(to the same table). So I need to simulate the follwoing. 500 different simultaneous connections from PHP to the same database on a mysql server, all of which are inserting a row(simultaneously) to the same table. DO I need to use any load testing tool? Or Can I simply write a PHP script to do this? Any thoughts?

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• Write Unit test for sorting

  - by user175084

  I need to write a unit test for a method where I arrange data according to another default list. This is the method. internal AData[] GetDataArrayInInitialSortOrder(ABData aBData) { Dictionary<string,AData > aMap = aBData.ADataArray.ToDictionary(v => v.GroupName, v => v); List<AData> newDataList = new List<AData>(); foreach (AData aData in _viewModel.ADList) newDataList.Add(aMap[aData.GroupName]); return newDataList.ToArray(); } Please help I am new in unit testing and this is not easy for me. Any sample or links are appreciated Thanks

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• Please clarify how create/update happens against child entities of an aggregate root

  - by christian

  After much reading and thinking as I begin to get my head wrapped around DDD, I am a bit confused about the best practices for dealing with complex hierarchies under an aggregate root. I think this is a FAQ but after reading countless examples and discussions, no one is quite talking about the issue I'm seeing. If I am aligned with the DDD thinking, entities below the aggregate root should be immutable. This is the crux of my trouble, so if that isn't correct, that is why I'm lost. Here is a fabricated example...hope it holds enough water to discuss. Consider an automobile insurance policy (I'm not in insurance, but this matches the language I hear when on the phone w/ my insurance company). Policy is clearly an entity. Within the policy, let's say we have Auto. Auto, for the sake of this example, only exists within a policy (maybe you could transfer an Auto to another policy, so this is potential for an aggregate as well, which changes Policy...but assume it simpler than that for now). Since an Auto cannot exist without a Policy, I think it should be an Entity but not a root. So Policy in this case is an aggregate root. Now, to create a Policy, let's assume it has to have at least one auto. This is where I get frustrated. Assume Auto is fairly complex, including many fields and maybe a child for where it is garaged (a Location). If I understand correctly, a "create Policy" constructor/factory would have to take as input an Auto or be restricted via a builder to not be created without this Auto. And the Auto's creation, since it is an entity, can't be done beforehand (because it is immutable? maybe this is just an incorrect interpretation). So you don't get to say new Auto and then setX, setY, add(Z). If Auto is more than somewhat trivial, you end up having to build a huge hierarchy of builders and such to try to manage creating an Auto within the context of the Policy. One more twist to this is later, after the Policy is created and one wishes to add another Auto...or update an existing Auto. Clearly, the Policy controls this...fine...but Policy.addAuto() won't quite fly because one can't just pass in a new Auto (right!?). Examples say things like Policy.addAuto(VIN, make, model, etc.) but are all so simple that that looks reasonable. But if this factory method approach falls apart with too many parameters (the entire Auto interface, conceivably) I need a solution. From that point in my thinking, I'm realizing that having a transient reference to an entity is OK. So, maybe it is fine to have a entity created outside of its parent within the aggregate in a transient environment, so maybe it is OK to say something like: auto = AutoFactory.createAuto(); auto.setX auto.setY or if sticking to immutability, AutoBuilder.new().setX().setY().build() and then have it get sorted out when you say Policy.addAuto(auto) This insurance example gets more interesting if you add Events, such as an Accident with its PolicyReports or RepairEstimates...some value objects but most entities that are all really meaningless outside the policy...at least for my simple example. The lifecycle of Policy with its growing hierarchy over time seems the fundamental picture I must draw before really starting to dig in...and it is more the factory concept or how the child entities get built/attached to an aggregate root that I haven't seen a solid example of. I think I'm close. Hope this is clear and not just a repeat FAQ that has answers all over the place.

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• Visual Studio 2010 Not Recognizing Unit Test

  - by jmease

  In an existing solution I added a new Test Project. In my Test Project .cs file I have a class decorated with the [TestClass] attribute and a method decorated with the [TestMethod] attribute. I have verified that in Configuration Manager the build check box is checked for the Test Project (as my google search has revealed was the problem for others with this issue). I have set Test Project as my start up project for the solution. When I try to start the test I get "Can not start test project because the project does not contain any tests". I am really new to unit testing. What am I missing?

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• Returning different data types C#

  - by user1810659

  i have create a class library (DLL) with many different methods. and the return different types of data(string string[] double double[]). Therefore i have created one class i called CustomDataType for all the methods containing different data types so each method in the Library can return object of the custom class and this way be able to return multiple data types I have done it like this: public class CustomDataType { public double Value; public string Timestamp; public string Description; public string Unit; // special for GetparamterInfo public string OpcItemUrl; public string Source; public double Gain; public double Offset; public string ParameterName; public int ParameterID; public double[] arrayOfValue; public string[] arrayOfTimestamp; // public string[] arrayOfParameterName; public string[] arrayOfUnit; public string[] arrayOfDescription; public int[] arrayOfParameterID; public string[] arrayOfItemUrl; public string[] arrayOfSource; public string[] arrayOfModBusRegister; public string[] arrayOfGain; public string[] arrayOfOffset; } The Library contains methods like these: public CustomDataType GetDeviceParameters(string deviceName) { ...................... code getDeviceParametersObj.arrayOfParameterName; return getDeviceParametersObj; } public CustomDataType GetMaxMin(string parameterName, string period, string maxMin) { .....................................code getMaxMingObj.Value = (double)reader["MaxMinValue"]; getMaxMingObj.Timestamp = reader["MeasurementDateTime"].ToString(); getMaxMingObj.Unit = reader["Unit"].ToString(); getMaxMingObj.Description = reader["Description"].ToString(); return getMaxMingObj; } public CustomDataType GetSelectedMaxMinData(string[] parameterName, string period, string mode) {................................code selectedMaxMinObj.arrayOfValue = MaxMinvalueList.ToArray(); selectedMaxMinObj.arrayOfTimestamp = MaxMintimeStampList.ToArray(); selectedMaxMinObj.arrayOfDescription = MaxMindescriptionList.ToArray(); selectedMaxMinObj.arrayOfUnit = MaxMinunitList.ToArray(); return selectedMaxMinObj; } As illustrated thi different methods returns different data types,and it works fine for me but when i import the DLL and want to use the methods Visual studio shwos all the data types in the CustomDataType class as suggestion for all the methods even though the return different data.This is illusrtated in the picture below. As we can see from the picture with the suggestion of all the different return data the user can get confused and choose wrong return data for some of the methods. So my question is how can i improve this. so Visual studio suggest just the belonging return data type for each method.

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• NHibernate Queries with Values Produced by Business Logic

  - by Lewis

  I have an NH query which returns a Product with a BasePrice. Depending on various other factors, such as Manufacturer price markup, I use a PricingService on the C# side of things to produce a "final" price. The issue is that I now need to query against this final value - i.e., I need to run a query that selects Products within a particular "final" price range. I'm thinking that my approach to this is all wrong, but I really didn't want to put the logic of the final price calculation in a SQL function or something like that, so any suggestions would be appreciated.

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• How value objects are saving and loading?

  - by yeraycaballero

  Since there isn't respositories for value objects. How can I load all value objects? Suppose we are modeling a blog application and we have this classes: Post (Entity) Comment (Value object) Tag (Value object) PostsRespository (Respository) I Know that when I save a new post, its tags are saving with it in the same table. But how could I load all tags of all posts. Has PostsRespository got a method to load all tags? I usually do it, but I want to know others opinions

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• Are multiple asserts bad in a unit test? Even if chaining?

  - by Michael Haren

  Is there anything wrong with checking so many things in this unit test?: ActualModel = ActualResult.AssertViewRendered() // check 1 .ForView("Index") // check 2 .WithViewData<List<Page>>(); // check 3 CollectionAssert.AreEqual(Expected, ActualModel); // check 4 The primary goals of this test are to verify the right view is returned (check 2) and it contains the right data (check 4). Would I gain anything by splitting this into multiple tests? I'm all about doing things right, but I'm not going to split things up if it doesn't have practical value. I'm pretty new to unit testing, so be gentle.

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• How can I know when SQL Full Text Index Population is finished?

  - by GarethOwen

  We are writing unit tests for our ASP.NET application that run against a test SQL Server database. That is, the ClassInitialize method creates a new database with test data, and the ClassCleanup deletes the database. We do this by running .bat scripts from code. The classes under test are given a connection string that connects to the unit test database rather than a production database. Our problem is, that the database contains a full text index, which needs to be fully populated with the test data in order for our tests to run as expected. As far as I can tell, the fulltext index is always populated in the background. I would like to be able to either: Create the full text index, fully populated, with a synchronous (transact-SQL?) statement, or Find out when the fulltext population is finished, is there a callback option, or can I ask repeatedly? My current solution is to force a delay at the end the class initialize method - 5 seconds seems to work - because I can't find anything in the documentation.

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• How to test Guice Singleton?

  - by 01

  Guice Singletons are weird for me First I thought that IService ser = Guice.createInjector().getInstance(IService.class); System.out.println("ser=" + ser); ser = Guice.createInjector().getInstance(IService.class); System.out.println("ser=" + ser); will work as singleton, but it returns ser=Service2@1975b59 ser=Service2@1f934ad its ok, it doesnt have to be easy. Injector injector = Guice.createInjector(); IService ser = injector.getInstance(IService.class); System.out.println("ser=" + ser); ser = injector.getInstance(IService.class); System.out.println("ser=" + ser); works as singleton ser=Service2@1975b59 ser=Service2@1975b59 So i need to have static field with Injector(Singleton for Singletons) how do i pass to it Module for testing?

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• Django shell command to change a value in json data

  - by crozzfire

  I am a django newbie and i was playing around in django's manage.py shell. Here is something i am trying in the shell: >>> data [{'primary_program': False, 'id': 3684}, {'primary_program': True, 'id': 3685}] >>> data[0] {'primary_program': False, 'id': 3684} >>> data[1] {'primary_program': True, 'id': 3685} >>> data[0].values() [False, 3684] >>> data[1].values() [True, 3685] >>> How should i give a command here to update the value of primary_program in data[1] to False and keep the rest of the json the same?

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• Guidelines for solution source code organisation(OO/DDD)

  - by fearofawhackplanet

  I'm starting on my first business project (.NET) and am trying to follow DDD principles. Are there any guidelines or common patterns for orgaining source code and namespaces? For example, do your domain objects go in a namespace MyProject.Domain or whatever? Would you separate the concrete implementations and the interfaces? In different namespaces? Different folders? Different solutions? I know a lot of this is subjective and dependent on project size, but a few pointers or suggestions to get started on a relatively small but extensible n-tier project would be useful.

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• How to use condition in a TestGen4Web script for a child popup window?

  - by GotoError

  I have TestGen4Web script for automating testing on a web-based user interface that has a popup window (hey i didn't write that ui..). In order to write a complete test script that branches the flow based on the some presence of some content in the popup window, I need to write a simple if condition that does something like if document.getElementById("xyz").value - that will run on the popup window and not the parent window. Any ideas on how to accomplish this? currently, the condition fails because it runs on the parent window. Also, how to extract some text from the dom and spit it out to a file at the end of the test?

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• DDD: Where to create entity objects?

  - by ciscoheat

  I have three entities that must interact: User, SupportTicketand PhoneConversation. When someone calls in requesting help, the User should have a SupportTicket assigned to him, with a PhoneConversation assigned to the Ticked describing the call. My question is: In what entity should I put the method CreatePhoneSupportTicket() that creates a new SupportTicket and a PhoneConversation, relates them to each other and finally relates the SupportTicket to the User? I'm guessing it can't be on the user because that would violate the SRP (the user does a few more things). But the method itself does more than one thing, it should create both a SupportTicket and a PhoneConversation. Is this a situation when a Service is a better solution then putting methods on entities? Thanks for your help!

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• How to instantiate a Singleton multiple times?

  - by Sebi

  I need a singleton in my code. I implemented it in Java and it works well. The reason I did it, is to ensure that in a mulitple environment, there is only one instance of this class. But now I want to test my Singleton object locally with a Unit test. For this reason I need to simulate another instance of this Singleton (the object that would be from another device). So is there a possiblity to instantiate a Singleton a second time for testing purpose or do I have to mock it? I'm not sure, but I think it could be possible by using a different class loader?

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• When to update audit fields? DDD

  - by user676767

  I have a Meeting Object: Meeting{id, name, time, CreatedBy, UpdatedBy} and a MeetingAssignee{id, MeetingID, EmployeeId, CreatedBy, UpdatedBy) Meeting, as Aggregate root, has a method AssignEmployee. I was about to pass in the current user to the Meeting object as I call AssignEmployee, so that it can update its audit fields accordingly. But this doesn't seem right - is it? Obviously I can keep the audit fields public and change them later - perhaps at service level? What is everyone's else preferred method for updating these fields? Please note: We are not using Nhibernate, but a custom ORM which does not have anything automatic in place. Thanks.

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• Junit test that creates other tests

  - by Benju

  Normally I would have one junit test that shows up in my integration server of choice as one test that passes or fails (in this case I use teamcity). What I need for this specific test is the ability to loop through a directory structure testing that our data files can all be parsed without throwing an exception. Because we have 30,000+ files that that 1-5 seconds each to parse this test will be run in its own suite. The problem is that I need a way to have one piece of code run as one junit test per file so that if 12 files out of 30,000 files fail I can see which 12 failed not just that one failed, threw a runtimeexception and stopped the test. I realize that this is not a true "unit" test way of doing things but this simulation is very important to make sure that our content providers are kept in check and do not check in invalid files. Any suggestions?

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• How to prevent unit test from using util from test project?

  - by calucier

  I am using eclipse and I have two projects, project1 and project1-test. Below is the example layout of my projects: project1 -src --my.package ----MyClass.java --my.package.util ----util.java project1-test -src --my.package ----MyClassTest.java --my.package.util ----util.java MyClass.java makes a static call to the util.java in project1. MyClassTests.java is testing MyClass.java. When the test class runs, it fails and complains that MyClass.java is referencing a method in util.java that doesn't exist. Under project1, the method being referenced exists in util.java but under project1-test, the method doesn't. When I run MyClassTests.java, the util.java that is being referenced from MyClass.java is from project1-test when it should be project1. Is there some way to make MyClass.java not reference util.java from project1-test when running MyClassTest.java?

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• How can I get a property as an Entity in Action of Asp.Net Mvc ?

  - by Felipe

  Hi all, i'd like to know how can I get a property like an entity, for example: My Model: public class Product { public int Id { get; set; } public string Name { get; set; } public Category Category { get; set; } } View: Name: <%=Html.TextBoxFor(x => x.Name) %> Category: <%= Html.DropDownList("Category", IEnumerable<SelectListItem>)ViewData["Categories"]) %> Controller: public ActionResult Save(Product product) { /// produtct.Category ??? } and how is the category property ? It's fill by the view ? ASP.Net MVC know how to fill this object by ID ? Thanks!

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• Flex list-controls - maintain remote data

  - by artemb

  Hello. I have a TileList which represents some remote data. I also have a form which allows me to change the data. And the data may be changed by someone else too. What is the best way to maintain data in the list in an up-to-date state? The simplest option I see is the following: Select an item in the list Edit it in the form Save it. The form submits the data to the server When the server reports success the list re-fetches it's data The very bad thing about this workflow is that the list loses selection (a tree would also loose the nodes' expanded/collapsed state). I would really love to find out another option which would enable the list to maintain it's selection state. Any guesses on how it may be done?

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• Test massive website

  - by Ant

  My company has just migrated all the code for our website to 3 identical servers on an off-site location. Now it is our job to test them. However, the amount of websites/functionality that we have to test is exorbitant, and multiply that times 3! To check every single link and every single function is a daunting task. We are in the process of manually doing that right now. My question to you guys/girls is this... Is there a way to automate the testing so we don't have to waste our time clicking, waiting, and checking the response, times 3? ;-) Let me know if you need any other info. Thanks!

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• Best way to test class methods without running __init__

  - by KenFar

  I've got a simple class that gets most of its arguments via init, which also runs a variety of private methods that do most of the work. Output is available either through access to object variables or public methods. Here's the problem - I'd like my unittest framework to directly call the private methods called by init with different data - without going through init. What's the best way to do this? So far, I've been refactoring these classes so that init does less and data is passed in separately. This makes testing easy, but I think the usability of the class suffers a little.

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• is it a good idea to write tests for environments other than development?

  - by jcollum

  Let's say I have a (fairly typical) set of environments: PROD, UAT, QA, DEV. Is it a good idea to run your tests across all environments? Here's what I'm thinking of. I have a proc in SQL that my code depends on, I'll call it proc_getActiveCustomers. If that proc isn't present my app will go south real fast. So I write a test that checks for the existence of this proc in the database. Nothing new here. But when I then deploy my app to the QA environment, would I also want to have a test that checks that environment for the existence of proc_getActiveCustomers? I think this is a good idea but I've never heard much about testing in environments outside of development. Makes me wonder if there's some downside I'm not aware of. The direction that I'm going is to have a list of environments in code and then passing that environment into my unit test.

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• How do I set up gaeunit 2.0a with my Django app?

  - by J. Frankenstein

  I am trying to set up Google App Engine unit testing for my web application. I downloaded the file from here. I followed the instructions in the readmen by copying the directory gaeunit into the directory with the rest of my apps and registering 'gaeunit' in settings.py. This didn't seem sufficient to actually get things going. I also stuck url('^test(.*)', include('gaeunit.urls')) into my urls.py file. When I go to the url http://localhost:8000/test, I get the following error: [Errno 2] No such file or directory: '../../gaeunit/test' Any suggestions? I'm not sure what I've done wrong. Thanks!

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• Save data from array in variable

  - by marcin_poland

  SOLVED! I`m trying save data from array in variable. I have in controller: $data = array('upload_data' => $this->upload->data()); and I know that in this array are data about uploading file. One with this date is "file_name", and I want to save this value in controller at variable. I try with: $image_name= $data['file_name']; But this not working. I use CodeIginter 2.1.3 framework. Good solution is: $data['upload_data']['file_name']; Thanks for help!

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