Sum m ary in C#.NET

Encoder Denso QR Bar Code in C#.NET Sum m ary

Sum m ary
QR Creator In C#
Using Barcode printer for .NET framework Control to generate, create QR Code JIS X 0510 image in .NET framework applications.
www.OnBarcode.com
QR Code ISO/IEC18004 Recognizer In Visual C#
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Sometimes it s useful to send information about the build status to offline team members. SMS notification may be advisable for mission-critical applications that should build correctly all the time. You may also want to explore different notification methods such as lights, message boards, RSS feeds, or even messages to team members instant messaging and Skype accounts. Now that you ve seen how to get feedback to your team, it s time to turn our attention to the last piece of a basic CI process: unit testing. That s where we re heading in the next chapter.
UPC Symbol Drawer In Visual C#
Using Barcode maker for VS .NET Control to generate, create UPCA image in Visual Studio .NET applications.
www.OnBarcode.com
Generate UCC - 12 In C#.NET
Using Barcode drawer for .NET framework Control to generate, create EAN128 image in Visual Studio .NET applications.
www.OnBarcode.com
Unit testing continuously integrated code
Generate PDF417 In Visual C#
Using Barcode creator for .NET framework Control to generate, create PDF-417 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Painting Code-128 In C#.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Code 128 Code Set B image in Visual Studio .NET applications.
www.OnBarcode.com
This chapter covers
Encoding Quick Response Code In Visual C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code image in Visual Studio .NET applications.
www.OnBarcode.com
Making USPS Intelligent Mail In C#.NET
Using Barcode creation for VS .NET Control to generate, create Intelligent Mail image in Visual Studio .NET applications.
www.OnBarcode.com
Unit testing in a CI environment Continuously examining test coverage Test mocking
Read Denso QR Bar Code In VS .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Scanning Quick Response Code In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
We ll risk the opinion that without automated testing, CI would be obsolete, because CI s main strength is that it shows how the changes you introduce into the code affect the software. The CI process should be designed to show you immediately when a change degrades the code quality. What better way to check for that kind of occurrence than to perform automated testing along with every source code change Automated software testing is a broad term. In this chapter, we ll focus on one particular type of automated testing: unit testing. Unit testing lies somewhere toward the bottom of the common automated-test chain. We ll get to the rest of the chain integration, system, and acceptance testing in chapter 7. But in this chapter, we ll define what unit tests are and what purpose they serve in the CI process. We ll take two popular testing frameworks, NUnit and Microsoft Unit Testing Framework (MSTest), and incorporate them into the CI process. Then you ll learn how to mock things out to speed up your tests.
Encoding Barcode In Visual Basic .NET
Using Barcode printer for .NET Control to generate, create Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Barcode Scanner In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Unit testing from a bird s-eye view
2D Creator In Java
Using Barcode drawer for Java Control to generate, create Matrix Barcode image in Java applications.
www.OnBarcode.com
Barcode Generator In Java
Using Barcode drawer for Android Control to generate, create Barcode image in Android applications.
www.OnBarcode.com
Unit testing from a bird s-eye view
Code39 Drawer In None
Using Barcode creator for Software Control to generate, create Code 3/9 image in Software applications.
www.OnBarcode.com
Read USS Code 128 In Visual C#.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Before we jump in to create some unit tests, let s define the term and look at the aspects that are important from the CI perspective. There s a common misunderstanding about unit tests. They re often associated with automated tests in general, but this assumption is incorrect. Unit tests are part of automated tests. Figure 6.1 shows the difference. As you can see, there s a lot more to automated testing than just unit tests. (As we mentioned earlier, you ll have to wait until chapter 7 to see the rest.) For now, you ll search for the smallest testable part of the application you re building: a unit. Depending on your point of view, it may be a class or a separate method. Unit tests verify this smallest testable part of your application. A well-designed unit test works with a fully isolated piece of code. It should test the smallest part of your software without dependencies on other classes or external resources. Sometimes unit tests are written by the software developer even before the actual code. They re perfect material for application verification in the CI process. Let s look at how to use them. When you re designing unit tests for the CI process, you have to keep some simple rules in mind. The most important in the CI context are as follows:
Generate Code 39 In Java
Using Barcode maker for Java Control to generate, create ANSI/AIM Code 39 image in Java applications.
www.OnBarcode.com
Draw Quick Response Code In None
Using Barcode generation for Online Control to generate, create QR Code ISO/IEC18004 image in Online applications.
www.OnBarcode.com
Make your unit tests fast and unambiguous. Have your unit tests rely on as few dependencies as possible. Let errors drive your unit tests.
Reading Barcode In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Printing Code 39 In VS .NET
Using Barcode generator for Reporting Service Control to generate, create Code-39 image in Reporting Service applications.
www.OnBarcode.com
Figure 6.1 Unit tests are a small but important part of the automated-testing landscape.
Unit testing continuously integrated code
Unit test should be fast. One unit test should run in a fraction of a second with no delays and no time-expensive operations. Each small piece of code should be tested in complete isolation, meaning the test shouldn t have any access to external resources. It shouldn t write to the hard drive, nor should it require network connections. If you have code that does that, you ll have to mock it as part of the test. (We ll discuss mocks later in this chapter.) To illustrate the suspicious-looking rule Let errors drive your unit tests, we ll revise a Samuel Beckett saying, Ever tried. Ever failed. No matter. Fail again. Fail better, and say Ever tried. Ever failed. No matter. Try again. Fail no more. We strongly believe that when it comes to unit tests, you shouldn t fail more than once. This means there s no excuse for not writing a test for every bug. You should be doing error/defectdriven development. Every time someone finds a bug in your code, you write a test for it, fix it, and let the test work from then on. It ll function as a regression test in the future. You ll be sure that particular bug is fixed for good, and your build will never again fail because of that bug. Let s jump right in, take the financial library you ve worked with in earlier chapters, and create a simple unit test for it using NUnit and MSTest. You ll integrate the tests with the CI servers. To demonstrate the mocking of functionality in unit tests, you ll extend the financial calculator to perform some I/O operations that you can mock. But before we get into mocking, you need some code to test, and you need to write some tests for the code.
Copyright © OnBarcode.com . All rights reserved.