.net barcode reader sdk free TESTER S TIP: BLACK BOX AND WHITE BOX TEST METHODS in Font

Generate PDF 417 in Font TESTER S TIP: BLACK BOX AND WHITE BOX TEST METHODS

TESTER S TIP: BLACK BOX AND WHITE BOX TEST METHODS
Encoding PDF417 In None
Using Barcode generator for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
Code 39 Full ASCII Creation In None
Using Barcode maker for Font Control to generate, create Code 39 Extended image in Font applications.
www.OnBarcode.com
Black Box and White Box are test-design methods. Black Box test design treats the system as a black box, so that you don t need to know the internals of the actual code you are testing. Black Box test design is usually described as focusing on testing functional requirements, not on the code itself (without knowledge of how the internal code works). You may also hear Black Box called things like functional, behavioral, opaque-box, and closed-box testing. Unlike Black Box testing, with White Box testing you do have access to the code. This allows you to see inside the box and is also called glass-box, clear-box, or structural testing.
Create GTIN - 128 In None
Using Barcode creation for Font Control to generate, create USS-128 image in Font applications.
www.OnBarcode.com
Encode EAN 13 In None
Using Barcode encoder for Font Control to generate, create GS1 - 13 image in Font applications.
www.OnBarcode.com
Let s look at two component examples you could create for the bug-reporting application. The first is a completely new component file that will hold some validation code. The second will take the ReportToFile class and move it to its own .dll file. Both components will be reusable in other applications.
Make GS1 - 12 In None
Using Barcode maker for Font Control to generate, create UPC-A Supplement 2 image in Font applications.
www.OnBarcode.com
Encoding Code-128 In None
Using Barcode drawer for Font Control to generate, create USS Code 128 image in Font applications.
www.OnBarcode.com
Validation Code
Encoding Barcode In None
Using Barcode generator for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Paint Planet In None
Using Barcode encoder for Font Control to generate, create Planet image in Font applications.
www.OnBarcode.com
To create good testware, you need to add code for validating user input. When we first started this chapter, we didn t add validation code to the Click event procedure, but in the real world we would have. When all the code in a testware application is used only by that application, its validation code can be added directly to the event procedure that starts processing your data. For example, in Exercise 6-1, we collected the tester s name from the UI, but we did not add code that checked if the user put his name in the textbox. At the least, we should have checked that the textbox was not left empty. We could even have gone as far as looking up a list of tester
PDF-417 2d Barcode Creator In C#
Using Barcode maker for .NET Control to generate, create PDF417 image in Visual Studio .NET applications.
www.OnBarcode.com
PDF 417 Generation In None
Using Barcode encoder for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
CHAPTER 6 CREATING TESTWARE COMPONENTS
Encoding Code 128 In None
Using Barcode creation for Word Control to generate, create Code 128 Code Set A image in Office Word applications.
www.OnBarcode.com
Data Matrix Creator In Java
Using Barcode drawer for Android Control to generate, create Data Matrix ECC200 image in Android applications.
www.OnBarcode.com
names in a database and comparing it to the textbox data. We chose not to add this code because, in a book, we really need to keep the examples as small as possible while still keeping relevance. Not showing all the validation code required is one way to keep examples small. Still, when you are designing your testware, you will want to add validation logic.
Data Matrix ECC200 Encoder In C#
Using Barcode creation for .NET framework Control to generate, create ECC200 image in .NET framework applications.
www.OnBarcode.com
Making Code 3 Of 9 In None
Using Barcode printer for Online Control to generate, create Code39 image in Online applications.
www.OnBarcode.com
TESTER S TIP: SHORT-TERM VS. LONG-TERM TESTWARE
Barcode Drawer In Objective-C
Using Barcode printer for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
PDF417 Maker In .NET Framework
Using Barcode encoder for Visual Studio .NET Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
Many of our students have asked, Isn t it the developer s job to create validation code While this is true, when you are creating testware who is the developer then, if not you All applications, including testware, can benefit from adding reusable validation code. Keep in mind also that how much effort you put into validation coding will have to do with what you expect the lifetime of the testware to be. Some testware will be quick, throwaway scripts to satisfy a one-time-only requirement (or changing requirements), and some testware you will want to keep around longer from build to build of the software, and even between test projects. This longer-term testware, which is the kind we discuss in this chapter, would mostly be your test drivers and test harnesses. In this type of testware, you ll want to put more effort into adding robust validation coding. Putting a lot of validation code into short test scripts will waste the limited time you have on a test project. This is a major difference between creating testware and creating other software applications. So, it s okay to throw away and cut and paste when creating quick testware! You ll find you end up with both kinds, long- and shortterm testware, and that figuring out which is which is a skill you ll gain with experience.
Draw Data Matrix In None
Using Barcode generator for Online Control to generate, create DataMatrix image in Online applications.
www.OnBarcode.com
Generate Barcode In Visual Studio .NET
Using Barcode generator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
To identify what validation code you will need, ask yourself what kind of data could the users put in or forget to put in that would cause an error. This one is intuitive for most testers. As you know, data should only be used in the manner it was designed for. If you can fill up a textbox with incorrect text, such as putting character data into a field that should be only numbers, and it goes into the application without throwing an error, then you assume that the programmer missed adding validation for this and write it up as a defect. With these issues, it is easy to prove that there is a bug even if you do not have access to the application s code. Certainly, leaving the textboxes empty is something that could happen. So, you could write some code that will check for empty textboxes (see Listing 6-7). Listing 6-7. Testing for an Empty String VB .NET If (txtTester.Text = "") Then MessageBox.Show("All textboxes must have values") Return End If C# if (txtTester.Text == "") { MessageBox.Show("All textboxes must have values"); return; }
Encode Barcode In Java
Using Barcode creator for BIRT Control to generate, create Barcode image in BIRT applications.
www.OnBarcode.com
Code 39 Printer In Objective-C
Using Barcode encoder for iPad Control to generate, create USS Code 39 image in iPad applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.