Unit testing is a method by which individual units of source code are tested to determine if they are fit for use.
-6
votes
1answer
69 views
How do I make my desktop application Testable? [closed]
When it comes to desktop apps (strong focus on GUI functionality) is TDD a good approach or it makes the project more complicated and too costly? If yes, what are good patterns? Are there approaches ...
0
votes
2answers
88 views
Building automated unit tests for tools which don't have an xUnit implementation
Preamble
I have been bitten by the bug of automated unit testing. I feel the benefits and the confidence in a code base it can deliver.
I am also feel I have a reasonable intuition as to what parts ...
3
votes
1answer
86 views
Unit testing in Django
I'm really struggling to write effective unit tests for a large Django project. I have reasonably good test coverage, but I've come to realize that the tests I've been writing are definitely ...
1
vote
2answers
69 views
Mock up class object
For example I have class ItemDownloader which has method downloadItem. This method creates instance of another class - Download to perform actual downloading.
Question is: I want to test ...
4
votes
3answers
197 views
How to invoke anonymous functions in testing?
Below is Java code.
I need to cover the below function. I searched for many websites, but I still have no ideas. Is there any methods to cover the override anonymous classes?
public static void ...
8
votes
1answer
172 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
176 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
109 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 ...
49
votes
5answers
2k views
Is there a reason that tests aren't written inline with the code that they test?
I've been reading a bit about Literate Programming recently, and it got me thinking... Well-written tests, especially BDD-style specs can do a better job at explaining what code does than prose does, ...
2
votes
2answers
129 views
JavaScript…what to unit test
I would like to hear other people's opinion on what to unit test in JavaScript. I've been thinking about it and experimenting and let me present what seems to me the right thing. First of all, in ...
0
votes
2answers
105 views
Is there an accepted name for a fake object injected via a preprocessor seam?
I am dealing with some old, sloppy C++ code in which there is a structure with a lot of data members and functions. I want to test a class that I have implemented which uses the struct, but this ...
10
votes
1answer
696 views
Should I write a test to prove that deleting code fixes a bug?
Occasionally I'll run into the situation where fixing a bug requires that I delete a section of code. The TDD purist would (I assume) advocate writing a failing test, deleting the code, then watching ...
2
votes
2answers
119 views
Should I split out synchronization from my class and what's it called?
When thinking about testability and modular code, I recently thought about whether I should split out the synchronization part of a class from the actual behavior part.
By example:
The app "needs" ...
6
votes
6answers
463 views
How do you unit test an encoder?
I have something like this:
public byte[] EncodeMyObject(MyObject obj)
I've been unit testing like this:
byte[] expectedResults = new byte[3]{ 0x01, 0x02, 0xFF };
Assert.IsEqual(expectedResults, ...
5
votes
2answers
166 views
How to do unit tests on a method that takes the elapsed time into account?
I'm currently in the middle of refactoring an important method in a legacy-system. There were almost zero test until I've started working on it, and I've added quite a lot to ensure the correct work ...
4
votes
2answers
316 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 ...
7
votes
3answers
330 views
Relative value of manual vs automated testing
The organisation I work for has recently employed a testing officer to run manual tests, but when I asked about being given time as a developer to write unit tests the response was that the manual ...
7
votes
1answer
105 views
Should I refactor my unit tests when I extract a class out of the System Under Test?
I wrote this class that does a few things (perhaps this is a violation of the Single Responsibility Principle). I realize now that some other part of the project needs a piece of that logic and the ...
4
votes
2answers
151 views
When to write Unit Tests : Is there any or list of terms to take right decision [closed]
To write Unit Tests we have to write extra bits of code.
For several projects we do Unit Tests and for several projects we do not.
As a Team Leader I face trouble to make the right decision.
Is ...
5
votes
2answers
190 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 ...
5
votes
2answers
281 views
Write tests for unit tests in TDD?
In an answer to another question, I suggested creating a randomized value for input to a specific method. In my experience this has been useful for making tests more readable and it lets you skip the ...
2
votes
1answer
97 views
JUnit Testing in Multithread Application
This is a problem me and my team faces in almost all of the projects. Testing certain parts of the application with JUnit is not easy and you need to start early and to stick to it, but that's not the ...
4
votes
4answers
244 views
Is path coverage stronger than condition coverage?
I have encountered (even in literature) two contradicting opinions related to path vs condition coverage (not branch or edge!). Some say Path coverage is stronger than the condition coverage, some say ...
121
votes
23answers
5k views
Why does automated testing keep failing in my company?
We have tried to introduce developer automated testing several times at my company. Our QA team uses Selenium to automate UI tests, but I always wanted to introduce unit tests and integration tests. ...
25
votes
6answers
1k views
How should you TDD a Yahtzee game?
Let's say you're writing a Yahtzee game TDD style. You want to test the part of the code that determines whether or not a set of five die rolls is a full house. As far as I know, when doing TDD, you ...
2
votes
3answers
140 views
Test driven development when implementing a flexible length list
According to the commonly used TDD strategy, to implement something, you write a test that fail the code first, write the simplest code, refactor, and then repeat. I am trying to imagine this scenario ...
7
votes
2answers
153 views
How do I know if I have enough unit test coverage to remove an integration test?
I'm working on a legacy system (by that I mean it was written without tests). We've tried to test some of the system by writing integration tests that test functionality from the outside.
This ...
3
votes
4answers
196 views
Why do I need unit tests for testing repository methods?
I need to play devils advocate on this question a bit because I cannot defend it well because of lack of experience. Here is the deal, I get conceptually the differences between unit testing and ...
4
votes
2answers
134 views
Unit Test Friendly Domain Driven Design
Many of the readings I've done on DDD, both in books and online, seem to represent code that, often times, is difficult or impossible to unit test. For example, there are numerous samples with static ...
3
votes
3answers
245 views
Is unconditional code considered a branch?
Having simple code like this:
int A=5;
object X=Console.ReadLine()
if(Condition)
DoSomething();
else
DoStuff();
DoSomethingElse();
Some sources say there are actually 4 branches: First ...
2
votes
1answer
105 views
Specifying Query in Unit Test
When writing unit tests, should I specify the query that will be performed for interacting with the database?
I can see both sides of this. On one hand, I want to make sure that the query that I ...
-1
votes
2answers
184 views
What is the “minimum” requirements of a unit test? [closed]
Is there a rule of thumb as to what are the minimum cases to test for a particular unit test?
Say, if we use Jenkins for line coverage, we might write a test case for two items and the code will be ...
8
votes
6answers
271 views
Best practices for unit testing methods that use cache heavily?
I have a number of business logic methods that store and retrieve (with filtering) objects and lists of objects from cache.
Consider
IList<TObject> AllFromCache() { ... }
TObject ...
2
votes
1answer
106 views
Unit Testing Open Source projects that require keys for api calls
What's the recommended method for setting up tests on code that requires a private key to make calls to external web services?
Full on mock objects or is there a way of distributing open source unit ...
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 ...
11
votes
3answers
388 views
Is using unit tests to tell a story a good idea?
So, I have an authentication module I wrote some time ago. Now I'm seeing the errors of my way and writing unit tests for it. While writing unit tests, I have a hard time coming up with good names and ...
1
vote
2answers
72 views
Name for intentionally assertless unit test [closed]
I have a tool that is going to be run as part of commit stage on Continuous Integration server to check whether all unit tests run do have an assert. Its main purpose is to eliminate silly mistakes ...
4
votes
2answers
70 views
Unit testing markup building logic
I'm currently writing a library of helper functions to produce some repetitive markup. I have a reference to the markup the functions should produce, but I'm curious about how I should go about unit ...
5
votes
2answers
181 views
Is it ok to use static (compile-time) assertions in unit tests?
Or more generally: to trigger compiler errors in test projects if something that can be checked at compile time is wrong?
4
votes
7answers
395 views
Should I spend time prettifying unit tests? [closed]
The company I used to work for before we had automated unit tests to test our work. However the coding standards and architecture was not very important for tests. Of course you had to indent code ...
-2
votes
1answer
109 views
For Server Side Java Development, do any processors/hardware stand-out as must-haves for productivity? [closed]
I'm working on a large Java program by myself, and I'm realizing that programming on modern IDE's and running lots of database tests is becoming more and more inefficient. Rather than things getting ...
5
votes
3answers
344 views
How much to test in TDD?
I am newbie to TDD (writing first project following TDD practices).
I have fairly basic interface IProfiler and an implementation Profiler.
interface IProfiler
{
bool IsBusy {get;}
long Elapsed ...
6
votes
3answers
290 views
Should I still use Debug.Assert today?
I recently came across some newly written code that was interspersed with lots of Debug.Assert (C#).
Should we still use this widely despite the usage of TDD, BDD and Unit Testing in general?
3
votes
1answer
116 views
How to structure unit testing of huge libraries?
I am writing unit tests for a library written in Qt/C++.
The library is rather big, with lots of functionalities. I have a separate unitTest folder which I have my UnitTest.cpp in there. Having all ...
4
votes
1answer
158 views
Behavior Driven Development and Unit Testing in Python
We might be interested in starting to incorporate a unit test suite to our project, which is coded in Python (and it uses Redis, PostgreSQL and some third-party libraries, if that bears into the ...
6
votes
2answers
226 views
Unit Testing and Asserting
Assume we have a method that validates an object before saving it to a DB. It returns back KVP something like:
public KeyValuePair<bool, List<FooErrorReason>> ValidateABar(Bar b)
{
...
10
votes
2answers
173 views
How would type errors be detected while creating mocks in a dynamic language?
The problem occurs while doing TDD. After a couple of test pass, the return types of some class/module change. In a statically typed programming language, if a previous mocked object was used in the ...
3
votes
1answer
203 views
TDD and test automation in applications heavily dependent on databases and user input [closed]
Recently I have been reading online about eXtreme programming and agile practices. I wish to adapt them. However most of my code is all in PHP which is the normal CRUD type web applications. Moreover ...
5
votes
3answers
243 views
Testing DatabaseOpenHelper class in Android
I've wrote several unit tests for already existing DatabaseOpenHelper class. I covered creation scenario and migration from old schema to new one. Unfortunately I don't fill that my tests are good. ...
9
votes
5answers
297 views
Is adhering to one assert per test foolish consistency in this case?
I have a class that I'm testing. The class has a function: apply(List<IRule> rules, List<ITarget> targets);
In one test I want to ensure that each target has been passed to one rule, a ...
