Unit testing is a method by which individual units of source code are tested to determine if they are fit for use. A unit is the smallest testable part of an application.

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Developing Unit Tests While Refactoring Legacy Code?

I have a big code library that I need to refactor in order for it to fit more nicely together (one big problem is there aren't clear enough boundaries between each component). Since there will be ...
13
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5answers
469 views

Should I unit test small projects?

I develop small projects, and the testing is usually a functional test when I verify if the service is working as I were the user. Is this ok with small projects of 2-3 people? How do you think unit ...
12
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6answers
767 views

In agile (Scrum) practices, where do I start with making Q&A (testing) more efficient if the team is transitioning from waterfall to agile?

My team has recently transitioned from the traditional waterfall method to practicing Scrum. Being the QA lead, really the only tester on a small team, how can I get the process more aligned with ...
12
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3answers
726 views

What's the recommended practice for separating unit tests from integration tests for automated testing?

On a project I've been working on, we've been steadily increasing the code coverage through tests. Some of these tests were done as integration tests, and some as unit tests. The integration tests can ...
11
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4answers
199 views

If I didn't use TDD but want to transition to agile, should I go back and create those unit tests?

In an transitioning agile environment, if there was no Test Driven Development (no unit tests created), should you create unit tests to catch up on technical debt? And to what extent? Should they ...
11
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4answers
1k views

Documenting Unit Tests

We follow a BDD approach to development, we have our testers creating scenarios from a specification, and these are then given to our developers before any work is started. However, we find that some ...
9
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3answers
829 views

Writing test cases before implementation?

So currently at my company it is common practice to write test case high level steps before implementation. Myself and others find this to be a somewhat wasted effort. I often end up blowing away much ...
7
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4answers
975 views

What is really tested in an integration test?

what is really the difference between a component/unit test and an integration test? Suppose you do very fine unit testing with stubs and drivers and test each component as far as you can with unit ...
5
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5answers
178 views

Writing tests to learn the code

My team is bringing on two new people - an intern and a full time. The intern has one semester to go, and the full time is fresh out of uni. After a two week training period, the plan management has ...
5
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6answers
758 views

Database code unit testing tips

I am working on developing a big 3-tier application. Database has a lot of code (stored procedures, functions, triggers...). I am looking for a valid approaches how to implement unit testing for the ...
5
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3answers
412 views

How to avoid redundant tests

We are building an application using a completely test-driven approach. As developers, we are very familiar with unit tests but haven't been exposed to integrated / functional / acceptance tests. ...
5
votes
1answer
138 views

How do I reasonably unit test calendrical calculations?

I've written some code that performs some action, depending on the day of the year and the year. There are an infinite number of years, hence an infinite number of days? What's a good way to unit ...
5
votes
1answer
289 views

What are the tiers of testing that should be done on a large scale distributed system?

Let's say you have a large distributed system in the cloud that's got dozens of developers working on it and actively adding code to. Your job is to make sure all of the quality gates are used and the ...
4
votes
3answers
2k views

What are the test cases or test scenarios for palindrome

In the interview, the employer asked me to write test cases or test scenarios to check the Palindrome of the word. I said one with positive test case and another with negative test cases. But employer ...
4
votes
4answers
261 views

Where to focus testing? On integration level or unit level?

Consider a modern web application that serves JSON through a REST API to a rich Javascript-based application with one or more single-page apps within it. Our own application is written using Angular ...
4
votes
4answers
998 views

UI and Business Logic Testing, Am I Doing it Right? Should I Unit Test Anything Else?

Alright, so this is what I have right now. buttonMultiply_Click(object sender, EventArgs e){ Calculator c = new Calculator(); textBoxLog.Text = "Calculation underway..."; int value1 = ...
4
votes
2answers
148 views

Testing programs that handle huge datasets

I'm writing a script that parses many thousands of lines from a server log and collates the data. I'm wondering how to go about creating unit-tests for such a program, to make sure it gathers the data ...
4
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2answers
109 views

Is this a good simplification of fake object types?

With every unit testing text I get my hands on comes a little different terminology and more or less different definitions of various fake object types. I find that a lot of this differentiation is ...
4
votes
3answers
164 views

How would you call on-device unit tests ?

In the embedded world some (unit) tests have minimal value when they run as standalone test, like unit tests should. We have many tests that run on the embedded device, as part of the embedded ...
4
votes
1answer
66 views

Are there some well known nasty pitfalls to try to avoid at all costs when starting with unit testing on a partly legacy (web) application?

I am participating on the development of the web application which has several years of history behind it and there never was enough value and effort put on refactoring, so considerable part of the ...
4
votes
1answer
1k views

xcodebuild does not run any unit tests when launched from console

My first question here so please bear with me. It may be off topic, if so - close the question. I have setup Jenkins with git and Xcode plugins so that I would be able to build an iOS project on CI ...
4
votes
1answer
266 views

PHP: code instrumentation library to capture/record new unit test cases?

I have a library that seems to work as intended. I would like to add some instrumentation to the library to capture (some) current input and the result and save that as a test case. Is there a library ...
4
votes
1answer
291 views

Selenium tests aren´t launched anymore

I used to be able to launch all my Selenium2 WebDriver tests in Ruby on Rails via rake test:units. But recently, my test case(s) won't be found anymore. I dont get any notification or error message. ...
4
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2answers
291 views

Differences between Standard for Software Component Testing (BCS, SIGIST, 2001) and BS 7925-2:1998

What (if any) are the differences between The Standard for Software Component Testing (from the British Computing Society SIGIST and available for free) and BS 7925-2 (which is available to purchase ...
3
votes
4answers
239 views

How would I unit test these functions?

I have the following functions : Get(ds,filename) - gets a file from a data source ds. Put(ds,filename) - puts a file into a data source ds. List(ds) - lists all files in data source ds. ...
3
votes
1answer
112 views

Are there common techniques for testing the conformance of an implementation to a general contract?

Say you have defined some abstract interface and you specify a general contract for that interface to which all implementations must adhere. Are there common techniques that can facilitate testing the ...
3
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3answers
210 views

What kind of testing is ApprovalTests.com doing and are there other similar frameworks?

I came across the ApprovalTests.com framework today and am curious how it would be classified. I am familiar with concepts of Unit Tests, functional tests, and user acceptance testing, but this seems ...
3
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2answers
218 views

Is NUnit a viable choice for a starting long term project these days?

I currently participate on the decision to pick a unit testing framework for a bigger long term project. NUnit, being an ubiquitous unit testing tool, would make it a natural choice for me, but not so ...
3
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2answers
387 views

Creating a dummy database for automated functionality testing

I have a continuous integration build server (using Team City). When people check code in, I'd like to run a set of tests which run through a set of functional cases such as: Using an administrator ...
3
votes
1answer
240 views

What is tested by IcuTest?

In the current "Automated Software Testing" magazine there is a short article about IcuTest. It is written that with "Test Generator" you can automatically create GUI unit tests: ICUTest is a ...
3
votes
1answer
112 views

xUnit tests patterns for testing threaded applications

Are there either any xUnit (or otherwise) design patterns or anti-patterns for testing threaded code?
3
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0answers
159 views

Jenkins stops getting my unit test output from xcodebuild

I've got Jenkins set up to build my application test target and execute tests in the iOS simulator like this answer says. When I execute the build in Jenkins, the iOS simulator launches and runs all ...
2
votes
2answers
670 views

NUnit: Global error method/event for handling exceptions

I'm looking for a way to catch exceptions globally in my NUnit project class library. So if one of my unit tests throws an exception, I can catch it in one spot. I don't want to surround each of my ...
2
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4answers
550 views

Good resource on how to write dot net unit test cases?

I am looking for good resources on how to write good unit test cases in C#/Dot Net. Books, resources on the net or simply good advises. In particular the unit cases should give good code coverage and ...
2
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3answers
136 views

Is my test a perf unit functional smoke test or something else?

Or how I learned to stop worrying and love the bomb. Each test is different. Some are big and talk to databases, others quick and self contained. We all know we'd prefer the fastest and most robust ...
2
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1answer
62 views

Enforcement of quality as a runtime requirement

I come from a background that strongly emphasizes automated testing baked into the build process. You commit, the code is checked out by the build system, compiled, and tests run against it. If it ...
2
votes
3answers
137 views

Do I Need To Create Mock Classes For Every Class?

Let's say I have a system composed of three classes: A,B,C that share certain dependencies. To test A independently, I would need to create mock objects for B and C To test B independently, I would ...
2
votes
2answers
614 views

Why run unit tests on mobile devices?

I know unit test suites exist for Android, Blackberry, Windows Phone, etc. I have some experience in writing unit tests in Java using JUnit, and C++ using CppUnit. Why would one want to write a ...
2
votes
1answer
919 views

Unit Testing The Presenter (in an MVP Context) Using Mock Objects?

Below is some code which is just the simplest MVP project I could make. How can I unit test the presenter using mock objects? Does a mock object mean a completely made up object? In this case, the ...
2
votes
1answer
275 views

Using Scala to build unit tests for Java?

The idea of using Scala to build unit tests for Java code has been thrown around. People are making the claim that Unit tests would be less effort to write because there's less boilerplate. In ...
2
votes
1answer
149 views

I should follow ISO 12207 but how should I verify integration/code without testing?

I am forced to follow ISO 12207 for systematic approach. I have been reading a lot here and found similar questions, yet not the same one and definitely not any suitable answer. According to this ...
2
votes
2answers
135 views

Dynamic whitebox testing and coverage metrics for Java systems?

What coverage measures/metrics are useful for unit testing and for integration testing of Java or other object-oriented systems? Context: We would like to establish a better test process. Our ...
2
votes
1answer
437 views

Philosophy to write Objective-C unit test

I am a really lost about it. I can study how write and run unit test in Objective-C with XCode, but I don't see how useful it is. In resume, you have to write a method that will be called first to ...
2
votes
2answers
411 views

Newbie question: How do I run a JUnit 3 test on Portable Firefox 3.6 in Selenium RC (1.0.3)?

I'm pretty new to selenium, and I'm following the Selenium Simplified book examples. I'm trying to run a simple test that was created in Selenium IDE on Portable Firefox 3.6, and saved as a JUnit 3 ...
2
votes
2answers
316 views

Running automated tests for Unity apps on iOS/Android devices?

I want to run automated tests for a game that I am developing with Unity. It runs on iOS and Android devices. As a first step we would like to Launch the game on device type X If the game loaded on ...
2
votes
1answer
258 views

Unittesting in Borland C++Builder 2006

Which unit testing framework would you use in Borland C++Builder 2006?
1
vote
2answers
62 views

Unit test for method block that will occur daily

I have a method Fetch, GetExchangeRate and method FetchOnDemand. FetchOnDemand checkds if Fetch is not called during one day it calls it. GetExchangeRate calls FetchOnDemand first then does its ...
1
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4answers
185 views

Is unit and component testing sufficient?

If you can test every line of [your product's] code via unit tests, wouldn't unit testing alone (theoretically) be sufficient? Are there other "necessary" benchmarks of proper test coverage other ...
1
vote
1answer
219 views

Unit Testing: Windows Forms using MS Visual Studio 2008

I've created unit tests of my WinForms using MS Visual Studio 2008. None of my tests have been approved. All of them (0/42 tests) resulted into some kind of failure described as follows:- ...
1
vote
1answer
341 views

How to use databases within the python unittest framework?

I have a bunch of unittests written in python in which messages (text) of any kind is used. Instead of 'hardcoding' the text examples used for the tests I would like to use a database of some kind ...