which of the following is the definition of white-box testing course hero

As per the ISTQB glossary, the definition of White Box Testing

is as follows Testing based on an analysis of the internal structure of the component or system. If the tester has code-level knowledge of the system or system component being tested then it’s possible for the tester to gain a deep understanding of the system.

Full Answer

What Do You Verify in White Box Testing?

White box testing involves the testing of the software code for the following: 1. Internal security holes 2. Broken or poorly structured paths in t...

How Do You Perform White Box Testing?

To give you a simplified explanation of white box testing, we have divided it into two basic steps. This is what testers do when testing an applica...

White Box Testing Techniques

A major White box testing technique is Code Coverage analysis. Code Coverage analysis, eliminates gaps in a Test Case suite. It identifies areas of...

Types of White Box Testing

White box testing encompasses several testing types used to evaluate the usability of an application, block of code or specific software package. T...

Advantages of White Box Testing

1. Code optimization by finding hidden errors. 2. White box tests cases can be easily automated. 3. Testing is more thorough as all code paths are...

Disadvantages of White Box Testing

1. White box testing can be quite complex and expensive. 2. Developers who usually execute white box test cases detest it. The white box testing by...

What is white box testing in software testing?

In Software Testing, White Box Testing plays a crucial role and it is used to test the internal code of the application.

Why is white box testing needed?

It is used to do test path coverage, code optimization, test automation etc.,

What is black box and white box testing?

Both black box and white box testing are the part of box testing.

What are the different types of white box testing?

Types of white box testing are unit testing, integration testing, operations testing, mutation testing, execution testing.

Who will do white box testing?

Usually white box testing is performed by developers and the testers who have programming skills (White box testers)

What is the difference between white box and black box testing?

It is one of two parts of the Box Testing approach to software testing. Its counterpart, Blackbox testing , involves testing from an external or end-user type perspective. On the other hand, White box testing in software engineering is based on the inner workings of an application and revolves around internal testing.

What is white box testing?

White Box Testing is software testing technique in which internal structure, design and coding of software are tested to verify flow of input-output and to improve design, usability and security. In white box testing, code is visible to testers so it is also called Clear box testing, Open box testing, Transparent box testing, Code-based testing and Glass box testing.

How do you perform White Box Testing?

To give you a simplified explanation of white box testing, we have divided it into two basic steps. This is what testers do when testing an application using the white box testing technique:

Why is the white box called the white box?

The term “WhiteBox” was used because of the see-through box concept. The clear box or WhiteBox name symbolizes the ability to see through the software’s outer shell (or “box”) into its inner workings. Likewise, the “black box” in “ Black Box Testing ” symbolizes not being able to see the inner workings of the software so that only the end-user experience can be tested.

What is the first thing a tester will often do?

The first thing a tester will often do is learn and understand the source code of the application. Since white box testing involves the testing of the inner workings of an application, the tester must be very knowledgeable in the programming languages used in the applications they are testing. Also, the testing person must be highly aware ...

What is white box penetration testing?

White Box Penetration Testing: In this testing, the tester/developer has full information of the application’s source code, detailed network information, IP addresses involved and all server information the application runs on. The aim is to attack the code from several angles to expose security threats

How long does it take to test a white box?

A small application that performs a single simple operation could be white box tested in few minutes, while larger programming applications take days, weeks and even longer to fully test.

What is White Box Testing?

White Box Testing is a software testing technique that is based on the application’s internal code structure. In white-box testing, an internal perspective of the system, as well as programming skills, are used to design test cases. This testing usually is done at the unit level.

What skills do you need to test a white box?

Testers need to have good programming skills to derive the test cases for white box testing. It is a contract to its counterpart black box testing which derives test cases from its specifications.

What is the box approach in software testing?

The box testing approach of Software Testing consists of Black Box Testing and White Box Testing and here in this article, we will learn White Box Testing and the following topics.

What is the purpose of code level knowledge in a system tester?

If the tester has code-level knowledge of the system or system component being tested then it’s possible for the tester to gain a deep understanding of the system.

What is the purpose of covering all lines of code?

This technique is used to make sure that each line of source code has been executed and tested at least once. Covering all lines of code points out the buggy code.

What does the name "box" mean in software?

These names represent the capability to see through the software’s outer shell (i.e., box) into its inner workings.

When does maintenance of test scripts become a burden?

Maintenance of test scripts becomes a burden when there is frequent redesigning of code.

What is white box testing?

White box testing involves complete knowledge of the inner workings of a system under test and black box involves no knowledge. Grey box testing, however, is a compromise – testing a system with partial knowledge of its internals. It is most commonly used in integration testing, end-to-end system testing, and penetration testing.

What is white box penetration testing?

White box penetration testing — an ethical hacker acts as a knowledgeable insider, attempting to attack an application based on intimate knowledge of its code and environment.

What is loop testing?

Loop testing — checking single loops, concatenated loops and nested loops for efficiency, conditional logic, and correct handling of local and global variables.

What is mutation testing?

Mutation testing — a type of unit testing that checks the robustness and consistency of the code by defining tests, making small, random changes to the code and seeing if the tests still pass.

What is DDoS protection?

DDoS Protection — maintain uptime in all situations. Prevent any type of DDoS attack, of any size, from preventing access to your website and network infrastructure.

What is path coverage approach?

In a path coverage approach, the tester writers unit tests to execute as many as possible of the paths through the program’s control flow. The objective is to identify paths that are broken, redundant, or inefficient.

What is code coverage?

Code coverage is a metric that shows how much of an application’s code has unit tests checking its functionality. Within code coverage, it is possible to verify how much of an application’s logic is actually executed and tested by the unit test suite, using concepts like statement coverage, branch coverage, and path coverage.

What is white box testing?

The box testing approach of software testing consists of black box testing and white box testing. We are discussing here white box testing which also known as glass box is testing, structural testing, clear box testing, open box testing and transparent box testing. It tests internal coding and infrastructure of a software focus on checking of predefined inputs against expected and desired outputs. It is based on inner workings of an application and revolves around internal structure testing. In this type of testing programming skills are required to design test cases. The primary goal of white box testing is to focus on the flow of inputs and outputs through the software and strengthening the security of the software.

Why is a white box used?

The term 'white box' is used because of the internal perspective of the system. The clear box or white box or transparent box name denote the ability to see through the software's outer shell into its inner workings. Developers do white box testing. In this, the developer will test every line of the code of the program.

What does a thick line in a code mean?

Here, the thick line specifies which section of code is time-consuming. When we double-click on the thick line, the tool will take us to that line or piece of code automatically, which is also displayed in a different color. We can change that code and again and use this tool. When the order of lines is all thin, we know that the presentation of the program has enhanced. And the developers will perform the white box testing automatically because it saves time rather than performing manually.

How many programs does a developer test?

The developer will do the white box testing, and they will test all the five programs line by line of code to find the bug. If they found any bug in any of the programs, they will correct it. And they again have to test the system then this process contains lots of time and effort and slows down the product release time.

What is the study of code at runtime?

This step involves the study of code at runtime to examine the resource utilization, not accessed areas of the code, time taken by various methods and operations and so on.

What is path testing?

In the path testing, we will write the flow graphs and test all independent paths. Here writing the flow graph implies that flow graphs are representing the flow of the program and also show how every program is added with one another as we can see in the below image:

Can a developer perform white box testing?

The developers can perform white box testing. The test engineers perform the black box testing. To perform WBT, we should have an understanding of the programming languages. To perform BBT, there is no need to have an understanding of the programming languages.

What is white box testing?

White box testing is a type of software testing in which the person understands the application design and source code. Using these insights, the person can run tests that reveal the most likely bugs or performance issues.

Why is white box testing important?

White box testing helps ensure a program is stable and performant. It is useful for stress-testing an app with large files or with edge cases that most users won't encounter. The bug fixing process is efficient since the person who discovers the errors often fixes them.