Tagged Questions

4
votes
5answers
262 views

How can I test parts of my application against the output of third party application?

I have a fairly new C# application, approximately 6 months old, that we are now trying to incorporate testing into. (Should have been done from the start but I can't change the past) Parts of this ...
1
vote
0answers
52 views

Testcase runner for parametrized testcases

Let me explain my situation. I'm planning a kind of test case runner for doing testcases on external devices, which are microcontroller based. Lets consider the devices: Device 1 Device 2 There ...
8
votes
4answers
367 views

In Unit Testing, why would I create a Repository twice?

The other day I was reading a little about Unit Testing and I saw some examples where people create a repository interface (i.e. IExampleRepository) and then create the real repository (public class ...
0
votes
0answers
203 views

How to write unit tests without mocking data

My design doesn't allow me to mock the data so I am using sqlite as test database that has minimum data to run the unit tests. Below is the pseudo code //Method to be tested public IList<Funds> ...
2
votes
5answers
359 views

Understanding unit tests/TDD for ASP.NET webforms [closed]

I'm the lead programmer at a small software firm (currently 4 developers including myself), we develop bespoke ASP.NET WebForms applications for businesses. I joined there in 2010 just after ...
12
votes
3answers
382 views

Is there any real value in unit testing a controller in ASP.NET MVC?

I hope this question gives some interesting answers because it's one that's bugged me for a while. Is there any real value in unit testing a controller in ASP.NET MVC? What I mean by that is, most ...
12
votes
3answers
478 views

Brittle unit tests due to need for excessive mocking

I've been struggling with an increasingly annoying problem regarding our unit tests that we are implementing in my team. We are attempting to add unit tests into legacy code that wasn't well designed ...
8
votes
1answer
272 views

Unit testing on visualization (3D graphics) frameworks

This is a follow up to this question. There I was asking how to do unit testing when you have a library of scientific algorithms. I have a similar problem now but with a different project. I'm ...
9
votes
3answers
445 views

Best way to unit test methods that call other methods inside same class

I was recently discussing with some friends which of the following 2 methods is best to stub return results or calls to methods inside same class from methods inside same class. This is a very ...
5
votes
1answer
159 views

Unit testing for a scientific computing library

I've had a bit of experience with unit testing before, in what I call (not pejoratively) the classic software engineering project: an MVC, with a user GUI, a database, business logic in the middle ...
5
votes
2answers
484 views

Event Driven Programming: A sequence of unfortunate events

I have a very basic game loop whose primary purpose is to check for updates & changes to a list. I have contemplated using event driven programming to replace the game loop/list idea with an ...
5
votes
2answers
253 views

Helper static methods in TDD

I am creating an application which will be testable(unit + integration). In this application I have a FileHelper static class, public static class FileHelper { public static void ...
25
votes
11answers
2k views

How do we make unit tests run fast?

We have reached the point in our project where we have almost a thousand tests and people have stopped bothering with running them before doing a check in because it takes so long. At best they run ...
7
votes
4answers
502 views

Is it useful to unit test methods where the only logic is guards?

Say I have a method like this: public void OrderNewWidget(Widget widget) { if ((widget.PartNumber > 0) && (widget.PartAvailable)) { ...
8
votes
4answers
564 views

Unit testing and Test Driven Development questions

I'm working on an ASP.NET MVC website which performs relatively complex calculations as one of its functions. This functionality was developed some time ago (before I started working on the ...
1
vote
2answers
225 views

Any pre-rolled System.IO abstraction libraries out there for Unit Testing?

To test methods that use the file system we need to basically put System.IO behind a set of interfaces that we can then mock, I do this with a DiskIO class and interface. As my DiskIO code gets ...
1
vote
3answers
457 views

Writing Unit Tests for a Class That Starts External EXE

I wrote a C# class that is used to start a list of EXEs (not one of mine - third party EXEs I have to run) and keep them running (will check occasionally to make sure it is still running, and start ...
3
votes
4answers
218 views

Do large test methods indicate a code smell?

I have a particular method called TranslateValues() (Cyclomatic-Complexity of 5) which I would like to test. The test requires a substantial number of mock objects which take up most of the method; ...
3
votes
3answers
846 views

How to make Unit Tests to make sure stored procedure is deleting row from the database?

I'm new to unit testing and I need some help with the following. I have created a small project to help me learn how to make Unit Tests. The functionality for one of the forms in my application ...
1
vote
2answers
640 views

Is this method of writing Unit Tests correct?

I have created a small C# project to help me learn how to write good unit tests. I know that one important rule of unit testing is to test the smallest 'unit' of code possible so that if it fails you ...
0
votes
2answers
519 views

Should I use a seperate class per test?

Taking the following simple method, how would you suggest I write a unit test for it (I am using MSTest however concepts are similar in other tools). public void MyMethod(MyObject myObj, bool ...
4
votes
2answers
329 views

How and what should I be (unit) testing for in this method?

I am relatively new to unit testing and have a query about what/how I should be testing a certain method. For the following (psudo-c#) method I have created (not a real-life example) what would you ...
0
votes
1answer
136 views

Are there any open source libraries that have file integration tests

I am writing integration tests to ensure files are getting created and written to etc but this seems like something lots of people must have done previously. Are there any libraries that have a bunch ...
0
votes
1answer
1k views

Implementing a ILogger interface to log data

I have a need to write data to file in one of my classes. Obviously I will pass an interface into my class to decouple it. I was thinking this interface will be used for testing and also in other ...
1
vote
3answers
978 views

How to Console.WriteLine from [TestMethod]?

I am trying to show some information from a [TestMethod] method. Usually we use NUnit and a line with Console.WriteLine runs fine and we can see it in 'output' window, but on this project we must to ...
2
votes
1answer
111 views

Testing chainable method calls return type and value

Is it worth testing the return type and value of a method call that is designed for chaining? It is conceivable that a fellow programmer could accidentally change the return type to void and remove ...
9
votes
4answers
1k views

Should unit test expected results be hardcoded?

Should the expected results of a unit test be hardcoded, or can they be dependant on initialised variables? Do hardcoded or calculated results increase the risk of introducing errors in the unit ...
7
votes
5answers
1k views

Would you rather make private stuff internal/public for tests, or use some kind of hack like PrivateObject?

I am quite a beginner in code testing, and was an assert whore before. One thing worrying me in unit testing is that is often requires you to make public (or at least internal) fields that would have ...
4
votes
4answers
621 views

Ease the pains of unit testing C# when you are the only person on the team unit testing

I have ran into this a few times where you get put on a project and you want to do unit testing of some type, but the project isn't setup right to allow for this and you might not have buy-in from ...
1
vote
1answer
91 views

Interested in Feedback on QA System Design

I'm in the beginning phases of creating a QA system and I want to make sure that the design decisions that I'm making now make sense and won't bite me in the butt later on. If you have even the ...
1
vote
3answers
287 views

Making Separate Assemblies For Different Types Of Tests For The Same Component?

I was told by a few members here that splitting up my unit tests into different assemblies for different components is the best way to structure unit tests. Now, I have a few questions about that ...
6
votes
3answers
220 views

Long-Term Strategy For Implementing a QA System?

I have been given the task of implementing some QA testing into a massive existing system. We're going to start out with system-level tests and might add unit tests if it is deemed necessary. I ...
3
votes
6answers
2k views

C# Unit Testing In A Single Project

Alright, so I'm doing my first "real" C# project. I'm chugging along, enjoying myself, nice little language I've got here, fairly easy to use, la ti da. Then I get to the point that I realize ...
6
votes
3answers
513 views

How can I reduce the amount of time it takes to fully regression test an application ready for release?

An app I work on is being developed with a modified version of scrum. If you are not familiar with scrum, it's just an alternative approach to a more traditional watefall model, where a series of ...
11
votes
6answers
2k views

Convert from Procedural to Object Oriented Code

I have been reading Working Effectively with Legacy Code and Clean Code with the goal of learning strategies on how to begin cleaning up the existing code-base of a large ASP.NET webforms application. ...
5
votes
2answers
541 views

How would you TDD the functionality of getting the corresponding process of a running windows service?

Purpose Over the last year or more I've been learning unit testing via books I've read recently like The Art of Unit Testing, Working Effectively with Legacy Code, and others. I've also been using ...
7
votes
1answer
501 views

How would I unit test database logic?

I am still having a issue getting over a small issue when it comes to TDD. I need a method that will get a certain record set of filtered data from the data layer (linq2SQL). Please note that i am ...
4
votes
2answers
732 views

What is the best practice for refactoring a static method in order to make it more testable?

Let's say you have a static method that looks something like this: public static bool Foo() { var bar = new Bar(); //do some stuff here } This method as it stands can be a real headache to ...
28
votes
8answers
9k views

Is static universally “evil” for unit testing and if so why does resharper recommend it?

I have found that there are only 3 ways to unit test (mock/stub) dependencies that are static in C#.NET: Moles TypeMock JustMock Given that two of these are not free and one has not hit release ...