Verifying the behavior of a software system against the expected behavior of that system.

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28
votes
9answers
3k views

What are the disadvantages of writing code before writing unit tests?

I have always seen the recommendation that we should first write unit tests and then start writing code. But I feel that going the other way is much more comfortable (for me) - write code and then the ...
22
votes
11answers
3k views

Why it is necessary to to test my iPhone app on actual iPhone device

I developed one application for iPhone and now I want it on App Store. So many my iOS geek friends told me to test it on actual device i.e. on iPhone. So I wonder that why it is necessary to to test ...
16
votes
10answers
1k views

At what point would you drop some of your principles of software development for the sake of more money?

I'd like to throw this question out there to interestingly see where the medium is. I'm going to admit that in my last 12 months, I picked up TDD and a lot of the Agile values in software development....
12
votes
5answers
496 views

Which format is best for the first prototype not on paper? [closed]

Console app (my favorite), quick & sloppy form, MS Paint (for GUI); what works best most of the time for your standard application? why?
11
votes
3answers
954 views

What should be tested in Javascript?

At work, we've just started on a heavily Javascript based application (actually using Coffeescript, but still), of which I've been implementing an automated test system using JsTestDriver and fabric. ...
10
votes
11answers
2k views

Turn away a bug if no reproducible test case exists? [duplicate]

If the customer has problems which are not reproducible because of complexity of actions they took and can't remember step by step, then coders are missing a test case. Indeed, this issue is ...
8
votes
3answers
862 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 ...
2
votes
5answers
220 views

Verification of requirements question

Doing a lot of reading about V&V, I would need to clarify the following. A lot of definitions (less formal ones found in books) define verification like that: Verification: The software should ...
9
votes
6answers
2k views

What is the role of QA in a BDD-driven project?

If running a project using BDD with 100% coverage of user stories with automated acceptance tests, what would be the role of a tester / quality assurance person? I guess I am imagining that ...
8
votes
7answers
512 views

How to keep the trunk stable when tests take a long time?

We have three sets of test suites: A "small" suite, taking only a couple of hours to run A "medium" suite that takes multiple hours, usually ran every night (nightly) A "large" suite that takes a ...
7
votes
5answers
2k views

Is a functional spec a part of the System requirement spec?

I wonder, sources like wikipedia or templates I found shows that Functional spec is a part of System requirement documents. I always thought that SRD is just overall decsription of the system, with ...
7
votes
3answers
6k views

Who should be responsible to write test cases? [duplicate]

Should tests in some project be written by the actual person that does the coding (usually senior in our team) or it can be done by junior coders with less experience?
6
votes
5answers
899 views

Viability of a Development Team with no *dedicated* Tester role [closed]

I've been thinking a lot lately about how to build a lean development team. Ultimately, I'd like to open up my own little software house with a small number of like-minded people. The goal won't be ...
5
votes
2answers
436 views

Can I start with a passing unit test?

Uncle Bob's rules for TDD are specified here. You are not allowed to write any production code unless it is to make a failing unit test pass. You are not allowed to write any more of a unit test ...
5
votes
1answer
564 views

Unit testing of “workflow” methods

We are currently developing a public API for our app. The methods on this public API are mostly putting together functionality in different corners of the system. An example would be: (names have been ...
2
votes
2answers
709 views

Unit Tests work but there are still bugs?

Brief History I am new to Automated Unit Testing and Mocking objects world; previously we used to do Unit Testing (including Integration Testing and we mistakenly referred that as Unit Testing) ...
2
votes
1answer
236 views

Rethinking testing strategy

Working on Plone projects our team tries to achieve full test coverage at least for important products. The kind of tests we write are unit tests, functional tests and integration tests. (Also stress-...
17
votes
9answers
537 views

Should programmers help testers in designing tests?

How much should programmers help testers in designing tests? I don't think they should help at all. My worry is that if they help testers in designing tests for their own code, they'll 'infect' ...
6
votes
2answers
519 views

Writing functional tests for a legacy project

I am trying to add a couple of tests to a legacy C project. The project basically consists of a command line tool that prints something to stdout every time an event happens. Now, since writing unit ...
5
votes
5answers
6k 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 ...
1
vote
2answers
3k views

How to unit test Visual Basic 6 legacy code? [closed]

I am doing legacy software programming in Visual Basic 6.0. How do I unit test it?
130
votes
45answers
40k views

Does giving a developer a slower development machine result in faster/more efficient code? [closed]

Suppose I give my developers a screaming fast machine. WPF-based VS2010 loads very quickly. The developer then creates a WPF or WPF/e application that runs fine on his box, but much slower in the ...
41
votes
7answers
8k views

Is it sufficient to use acceptance and integration tests instead of unit test?

Short introduction to this question. I have used now TDD and lately BDD for over one year now. I use techniques like mocking to make writing my tests more efficiently. Lately I have started a ...
34
votes
5answers
8k views

Is there a point to unit tests that stub and mock everything public?

When doing unit tests the "proper" way, i.e. stubbing every public call and return preset values or mocks, I feel like I'm not actually testing anything. I'm literally looking at my code and creating ...
86
votes
12answers
11k views

Is testable code better code?

I'm attempting to get into the habit of writing unit tests regularly with my code, but I've read that first it's important to write testable code. This question touches on SOLID principles of writing ...
14
votes
8answers
12k views

Whiteboard “testing” during an interview: legitimate way to back up your (whiteboard) code? [closed]

As I get it, having an error (even a typo like or missing ";") in your whiteboard code will often cost you some interview points. Avoiding that will inevitably make one proof-reading code again and ...
47
votes
7answers
11k views

How to deal with static utility classes when designing for testability

We are trying to design our system to be testable and in most parts developed using TDD. Currently we are trying to solve the following problem: In various places it is necessary for us to use static ...
39
votes
14answers
2k views

If you had two projects with the same specification and only one was developed using TDD how could you tell? [closed]

I was asked this question in an interview and it has been bugging me ever since. You have two projects, both with the same specification but only one of these projects was developed using Test ...
23
votes
4answers
26k views

What is the correct way to handle debug output in Java?

As my current Java projects grow bigger and bigger, I feel a likewise growing need to insert debug output in several points of my code. To enable or disable this feature appropriately, depending on ...
9
votes
5answers
6k views

How do you identify “edge” cases on algorithms?

Basically how do you find out which could be your worst or best case and any other "edge" cases you might have BEFORE having them and so, how do you prepare your code for them?
23
votes
5answers
3k views

Do unit tests sometimes break encapsulation? [duplicate]

I very often hear the following: "If you want to test private methods, you'd better put that in another class and expose it." While sometimes that's the case and we have a hiding concept inside our ...
13
votes
7answers
13k views

Is is possible to unit test a web forms site

Is is possible (and sensible) to unit test a web forms site? It seems to me that as so much of it depends on state and user input it wouldn't be fesable. If it's not feasible is there a valid ...
13
votes
4answers
8k views

Writing Acceptance test cases

We are integrating a testing process in our SCRUM process. My new role is to write acceptance tests of our web applications in order to automate them later. I have read a lot about how tests cases ...
25
votes
4answers
1k views

Why it is not recommended to post several defects in the same issue / ticket?

I am not sure if this is the place to ask the following conceptual question (Stackoverflow is definitely not). I saw this question in a multiple choice exam (single answer), similar to the ISTQB ...
9
votes
3answers
2k views

How can you write tests for Selenium (or similar) which don't fail because of minor or cosmetic changes?

I've been spending the last week or so learning selenium and building a series of web tests for a website we're about to launch. it's been great to learn, and I've picked up some xpath and css ...
9
votes
4answers
1k views

In TDD, if I write a test case that passes without modifying production code, what does that mean?

These are Robert C. Martin's rules for TDD: You are not allowed to write any production code unless it is to make a failing unit test pass. You are not allowed to write any more of a unit test than ...
4
votes
3answers
950 views

What is the best use case for selenium?

I've been trying to develop web applications while at the same time creating the testing. I understand unit testing, I can declare a test method and test specific methods in my application. But I don'...
28
votes
11answers
2k views

Do I need to test everything?

I'm going to start my first real project in Ruby on Rails, and I'm forcing myself to write TDD tests. I don't see real advantages in writing tests, but since it seems very important, I'll try. Is it ...
28
votes
4answers
2k views

How to efficiently troubleshoot or test new code when hardware setup to reproduce bugs is difficult or impossible to obtain?

I work at a mid-sized company (150ish employees, ~10 size engineering team), and most of my projects involve interfacing with lab equipment (oscilloscopes, optical spectrum analyzers, etc) for the ...
18
votes
12answers
3k views

What problem does automated user interface testing solve?

We are currently investigating automated user interface testing (we currently do automated unit and integration testing). We've looked at Selenium and Telerik and have settled on the latter as the ...
13
votes
10answers
9k views

Black box or white box testing - which do you do first?

On a very small team, where the black box and white box testing is done by the same person, which should the tester do first?
11
votes
6answers
2k views

We are spending more time implementing functional test than implementing the system itself, is this normal?

Basically, we have three main projects, two of them are web services, and the other is a web application. While I'm satisfied with covering as much as we can of our web services with functional tests (...
6
votes
2answers
1k views

Functional testing and Acceptance testing leading to redundant code

What I know is: A Functional test aims to test a single component (like a WebApp's Controller) from the point of view of the developer. => Did I achieve all the requirements to make it work well? ...
8
votes
1answer
17k views

How can I unit-test my REST web service?

I am new to unit testing, I've one REST web method that just calls DB and populates a DTO. Pseudo code is public object GetCustomer(int id) { CustomerDTO objCust = //get from DB return objCust; } ...
8
votes
3answers
754 views

How come verification does not include actual testing?

Having read a lot about this topic --- such as on this Software Testing Fundamentals site on verification and validation and Software Testing and Quality Assurance: Theory and Practice by Naik and ...
5
votes
1answer
636 views

Is testable code actually more stable?

A google scholar search turns up numerous papers on testability, including models for computing testability, recommendations for how ones code can be more testable, etc. They all come with the ...
10
votes
8answers
1k views

Should developers be involved in testing phases?

we are using a classical V-shaped development process. We then have requirements, architecture, design, implementation, integration tests, system tests and acceptance. Testers are preparing test cases ...
10
votes
3answers
18k views

What is a Developer in Test? [closed]

I was recently talking with a recruiter who wants to put me at a company for a position of Developer in Test. He essentially made it sound like a position where you get to fiddle with new programming ...
9
votes
3answers
1k views

Interview question: how much would you test before you stop? [closed]

This was a question I got in an interview. After asking the coding question, the interviewer asked how I would test the function. I answered with writing unit tests and test cases to try to cover ...
9
votes
8answers
2k views

Copy-and-Pasted Test Code: How Bad is This?

My current job is mostly writing GUI test code for various applications that we work on. However, I find that I tend to copy and paste a lot of code within tests. The reason for this is that the areas ...