Unit testing is a method by which individual units of source code are tested to determine if they are fit for use.

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Using Spring in Java Project

I've got a question about a correct usage of Spring. I know that some people use the DI "aggressively" so that they always use spring and completely eliminate the usage of word "new" in the ...
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Testing $stateChangeStart

I'm trying to figure out how to test my $rootScope.$on.$stateChangeStart event. Authentication service already has unit tests to check it's functionality, but I'm really trying to do is set up a test ...
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0answers
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How to think about a schedule that pulls from a database as objects

I am working on a personal project using Python. I have been using version control to the best of my abilities and if you would like to check it out and run the app https://github.com/CodeAmend/old-...
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2answers
249 views

Respectable design pattern for making node modules flexible/testable?

I am looking to get some input from some more experienced testers than what I am. :) I am trying to make my node modules testable, allowing for dependency spying/stubbing/mocking without the need to ...
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1answer
48 views

Automated test for code that takes a bunch of input data and outputs a bunch of data - should it be split up?

I'm about to write a program and test(s) for it. This question is about how to structure the top-most level integration test. At the top level, the main program takes a chunk of data, and outputs ...
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11answers
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Is static universally “evil” for unit testing and if so why does resharper recommend it? [closed]

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 1....
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6answers
5k 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 ...
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4answers
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How can CI be used for interpreted languages?

I have never used a Continuous Integration system (CI) before. I primarily code in MATLAB, Python or PHP. Neither of these have a build step and I do not see how a CI could be used for my work. A ...
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7answers
421 views

Is it appropriate to not follow the O/C principle if you have unit test coverage?

I find it more convenient to 'modify'existing classes rather than extending them. Thus, I violate the open closed principle of 'not modifying the compiled and tested source code, instead extending the ...
7
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1answer
204 views

How should the code for a program outputting to command line be tested/designed?

Imagine a program similar to this in Python: import subprocess class Example(): _cmd_args = (['ls', '-a', '/usr/bin/'], ['ls', '-al', '/usr/local/bin/']) _default_args = 0 def init(...
3
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2answers
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Verbosity of unit testing in untyped languages

I'm asking myself how verbose I should be when unit testing projects written in untyped languages like Javascript. Let's take an example for a strongly typed language (C#) public bool Foo(MyClass ...
7
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2answers
168 views

Is there any value in asserting values prior to acting in unit tests?

Here's a silly psuedo-object to illustrate the point: public class Testing { public object MyUnderlyingObject = new object { Property = 44 }; public MyPropertyWrapper { get ...
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0answers
127 views

What to unit-test when loading a dll?

I wrote a wrapper class that is using a dll. I have a LoadLibrary() function and have wrapped all the functions the dll exports (to match my error codes). I am not too familiar with unit testing. I ...
10
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4answers
1k views

When should I use mock objects?

I've read a lot of things about TDD but I still have doubts. For example, I have these class diagrams: It's a simple example, just to learn about TDD and mock objects. Which test should I write ...
3
votes
3answers
277 views

Unit Testing and 3rd party packages. Do I mock or not?

I'm just getting used to unit testing and on my new project I decided to adopt a TDD approach. My code below is to test the UserServices class which is responsible for creating a user, deleting a ...
16
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7answers
5k views

Coding and testing in the same sprint

How is testing handled within the same sprint as coding, if all or most of the coding is not done until the end of the sprint? (I'm referring to the "soup-to-nuts" development and testing of a single ...
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3answers
116 views

Unit Testing Module-Internal Functions

I'm writing a simple whitebox unit testing suite for a project I'm working on in C. The project is broken into modules (each has a .c file with an associated .h file), and all modules are compiled ...
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0answers
55 views

Where do you put your profiling code?

I just developed an algorithm and additional to the usual unit tests I wrote a profiling "test" that I was using to measure and optimize its performance. It is structured similar to a test (arrange: ...
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2answers
219 views

Should a Junior programmer add TDD tests to mvc project

I'm a junior programmer near to my 6 month probation, following my initial career changing 3 month assignment in which I added TDD tests and wondering whether I should add tests to my current work. ...
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0answers
94 views

Running unit tests for an Azure solution built by TeamCity

We have a solution containing a Web Role and Worker Role. This is built by TeamCity and deployed by Octopus Deploy to a Microsoft Azure environment. The solution contains unit test assemblies (MSTest) ...
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9answers
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What's the point of running unit tests on a CI server?

Why would you run unit tests on a CI server? Surely, by the time something gets committed to master, a developer has already run all the unit tests before and fixed any errors that might've occurred ...
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3answers
190 views

What is the most elemental workflow for TDD?

Gradle is such an interesting build tool that it prompted me to look at Spock and JUnit -- which I've never done before. What is the basic workflow with TDD? My approach has been to do frequent ...
2
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2answers
221 views

What is it called when you test a microservice by mocking the dependencies?

I've a RESTFul microservice written in Grails. This microservice has it's own DB. It also depends on two other microservices. A typical workflow of the service is: Receives a GET request from a ...
4
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1answer
97 views

When does it make sense to include test code in coverage?

Many coverage tools evaluate an entire project, including unit test code itself. In VS 2013, the Analyze Code Coverage/All Tests option includes test code in its report. OpenCover does so as well I ...
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2answers
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How do you evaluate automated testing for a particular product/project?

Automated testing is pretty hyped-up in recent years, with particular emphasis on TDD at the "unit" level. The touted advantages include things like: Stabilizing existing code: breaking changes are ...
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8answers
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How do I unit test multi-threaded code? [duplicate]

Are there ways to unit test your multi-threaded code for race conditions and deadlocks? To see if they are performing the way they should be...
2
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1answer
89 views

How far do I, or can I take TDD tests with Service Objects?

In writing PHPSPEC tests for a Zend Framework 2 application, I'm left wondering how far to 'dig'. Consider this very simple case: A DomainService (Domain in the URL sense of the word) should be ...
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2answers
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Differences between Given When Then (GWT) and Arrange Act Assert (AAA)?

In TDD there is Arrange Act Assert (AAA) syntax: [Test] public void Test_ReturnItemForRefund_ReturnsStockOfBlackSweatersAsTwo_WhenOneInStockAndOneIsReturned() { //Arrange ShopStock shopStock =...
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3answers
368 views

When testing is it OK to use a method of the subject to test another method of the subject?

I have two methods in the same helper class one that creates an image (createImage) and one that compares two images (compareImages). Image createImage(Data data); Boolean compareImages(Image from, ...
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3answers
131 views

At what point in a projects life-cycle do you begin writing tests? [duplicate]

I'm not in the field, so I don't have any professional experience from projects following the TDD design. I am trying to adopt this pattern, but I'm confused as to when I start actually writing the ...
15
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4answers
1k views

How to do Test Driven Development

I have just 2+ years of experience in application development. In those two years my approach towards development was as following Analyze requirements Identity Core component/Objects, Required ...
4
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2answers
2k views

How do you unit test \ use TDD methods for ETL's and reporting projects?

ETL projects are projects created using an ETL (Extract - Transform - Load) tool such as SSIS, PowerCenter,etc These typically involve reading data from an external source, loading it to a staging ...
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1answer
239 views

How can you easily unit test deserialization to different versions of an object?

I am using the protobuf-net library for serialization/deserialization of messages. Due to the distributed nature of the application some applications will have an older version of the object that is ...
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8answers
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What is the value of checking in failing unit tests?

While there are ways of keeping unit tests from being executed, what is the value of checking in failing unit tests? I will use a simple example: Case Sensitivity. The current code is case sensitive....
6
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2answers
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How does breaking up a big method into smaller methods improve unit testability when the methods are all private?

I'm presently reading Building Maintainable Software by Joost Visser and some of the maintenance guidelines they recommend include: A) each unit/method should be short (less than 15 lines per method) ...
7
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1answer
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Unit Testing: Assembler code and different architectures

I am currently unit testing some C code and I am faced with a problem: Within the code there are called functions that contain inline assembler code for the SPARC 8 architecture. Since I am doing ...
3
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3answers
147 views

How do you test a selenium framework?

I have a very large selenium test framework I use to test a web application. It it built around a page-object pattern. This week I fixed a bug in a low level piece of the framework, but it broke many ...
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2answers
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Should I write automated unit tests that fail when the code changes?

Generally when writing automated unit tests (eg JUnit, Karma) I aim to: cover all the boundary conditions get a high level of coverage. I heard someone say: coverage and boundary conditions ...
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3answers
427 views

Anonymous namespaces make code untestable

Here is a typical C++ code: foo.hpp #pragma once class Foo { public: void f(); void g(); ... }; foo.cpp #include "foo.hpp" namespace { const int kUpperX = 111; const int ...
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2answers
152 views

how to unit test constant that define an implementation detail?

How do I unit test a constant that define an implementation detail? and should I? For instance let's say I have the following class: class A { private Cache _cache; const int ...
3
votes
2answers
212 views

How unit test service method that use repository method

For service methods that call repository methods to interact with database how could I unit test these service methods? For example, public function updateSlideshow($data){ // do some logic ...
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5answers
531 views

Broken Old/Legacy Unit Tests

I work for a big company and I'm responsible for a large java application with thousands of junit tests. Since I moved to this role, there have been 200-300 broken tests (likely broken for years). ...
3
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6answers
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Should I use a unit testing framework to validate XML documents?

From http://www.w3.org/XML/Schema: [XML Schemas] provide a means for defining the structure, content and semantics of XML documents. I'm using an XML Schema (XSD) to validate several large XML ...
15
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2answers
870 views

Software Testing Techniques or Categories [closed]

What kinds of software testing do you know? I've heard about Test-Driven Development, Unit tests etc, but can't understand their importance and difference. For example, why are we using regression ...
2
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3answers
628 views

Testing front-end app that hits a REST service

A lot of questions about testing here... And I have another one. Forgive me, but I want to make sure I do this right. Let's say I have a front-end application, be it a mobile app, or a single-page ...
16
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3answers
1k views

Shipping test code. Why wouldn't you?

I would like to ship test code alongside a product. Specifically, provide an option so that anyone with a copy of our program can hit a "self-test" button or pass --self-test on the command line and ...
2
votes
2answers
148 views

Having a TestContext to test methods instead of Dependency Injection

I am working on a legacy code base and I need to find a way to write unit tests for this project. The project has a three layer architecture (UI-Biz-DAL as we call them) and DAL is totally ...
81
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10answers
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How should I test randomness?

Consider a method to randomly shuffle elements in an array. How would you write a simple yet robust unit test to make sure that this is working? I've come up with two ideas, both of which have ...
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2answers
177 views

Testing using mocking, must I mock all dependencies too?

I have the following method to test: public List<MarkId> getMarkIdList(ICar carDoc) { ICourseCar courseCarDoc = courseCarRep.get(carDoc); List<MarkWag> markWagList = ...
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3answers
171 views

How narrow should my unit tests be?

Here's an example: I have a chat module in my app, and there's a ChatService class that is responsible for networking, and there's a ChatNotificationService helper class that is responsible for ...