White box testing in software engineering

Control structure testing is used to increase the coverage area by testing various control structures present in the program. The different types of testing performed under control structure testing are as follows- 1. Condition Testing 2. Data Flow Testing 3. Loop Testing 1. Condition Testing : Condition testing is a test cased design method, which ensures that the logical condition and decision statements are free from errors. The errors present in logical conditions can be incorrect boolean operators, missing parenthesis in a booleans expression, error in relational operators, arithmetic expressions, and so on. The common types of logical conditions that are tested using condition testing are- • A relation expression, like E1 op E2 where ‘E1’ and ‘E2’ are arithmetic expressions and ‘OP’ is an operator. • A simple condition like any relational expression preceded by a NOT (~) operator. For example, (~E1) where ‘E1’ is an arithmetic expression and ‘a’ denotes NOT operator. • A compound condition consists of two or more simple conditions, Boolean operator, and parenthesis. For example, (E1 & E2)|(E2 & E3) where E1, E2, E3 denote arithmetic expression and ‘&’ and ‘|’ denote AND or OR operators. • A Boolean expression consists of operands and a Boolean operator like ‘AND’, OR, NOT. For example, ‘A|B’ is a Boolean expression where ‘A’ and ‘B’ denote operands and | denotes OR operator. 2. Data Flow Testing : The data flow test method chooses the test path of a program based on ...

What is White Box Testing? White box testing, also known as structural testing or glass box testing, is a method of testing software in which the internal structure and design of the code being tested is known and used as the basis for creating test cases. This type of testing focuses on verifying that the code functions as intended and that all statements have been executed, as well as checking for compliance with programming standards and identifying potential bugs or vulnerabilities. It can be done by developers or testers, and it is usually done in combination with black box testing, which tests the software from the user’s perspective without knowledge of the internal structure. • Unit testing: Tests individual units or components of the software to ensure they function as intended. • Integration testing: Tests the interactions between different units or components of the software to ensure they work together correctly. • Functional testing: Tests the functionality of the software to ensure it meets the requirements and specifications. • Performance testing: Tests the performance of the software under various loads and conditions to ensure it meets performance requirements. • Security testing: Tests the software for vulnerabilities and weaknesses to ensure it is secure. • Code coverage testing: Masures the percentage of code that is executed during testing to ensure that all parts of the code are tested. • Regression testing: Tests the software after changes have been...

• v • t • e White-box testing (also known as clear box testing, glass box testing, transparent box testing, and structural testing) is a method of exclusively by agreed specifications of how each component of software is required to behave (as in White-box test design techniques include the following • • Data flow testing • Branch testing • Statement coverage • Decision coverage • • Prime path testing • Path testing Overview [ ] White-box testing is a method of testing the application at the level of the source code. These test cases are derived through the use of the design techniques mentioned above: Levels [ ] • • • Basic procedure [ ] White-box testing's basic procedures require the tester to have an in-depth knowledge of the source code being tested. The programmer must have a deep understanding of the application to know what kinds of test cases to create so that every visible path is exercised for testing. Once the source code is understood then it can be analyzed for test cases to be created. The following are the three basic steps that white-box testing takes in order to create test cases: • Input involves different types of requirements, functional specifications, detailed designing of documents, proper source code and security specifications. [ citation needed] This is the preparation stage of white-box testing to lay out all of the basic information. • Processing involves performing risk analysis to guide whole testing process, proper test plan, execute test ca...

Basis Path Testing – A White Box Method for Designing Test Cases In this article, we will uncover what basis path testing means, and outline the advantages of using this white box method for a program’s source code. In software engineering, it is critical to have good Similar to path testing, basis path testing finds all the possible executable paths of the code. However, it is more efficient in that it reduces redundant tests and achieves maximum coverage, and is, therefore, less time-consuming. Understanding A White Box Testing Method The Box Testing approach to testing software is made up of two methods, namely White Box and Blackbox testing. To give an overview, the white box method tests software’s internal structure, coding, and design while the black box method tests it from an end-user or external viewpoint. White box testing is known by a number of different terms including Clear Box testing, Structural testing, Open Box testing, Code-Based testing, Transparent Box testing, and Glass Box testing. It earned this name because of the tester’s ability to cut through the outer box of the software to see into its inner workings. The code is visible to the developer. The main objective of white-box testing is to verify input and expected output flows through an application, refine the usability, improve on the design, and strengthen security. It can be done at either system, integration, or unit levels of the development phase. When implemented, this method aims to valid...

Types of Software Testing In this section, we are going to understand the various types of software testing, which can be used at the time of the Software Development Life Cycle. As we know, software testing is a process of analyzing an application's functionality as per the customer prerequisite. If we want to ensure that our software is bug-free or stable, we must perform the various types of software testing because testing is the only method that makes our application bug-free. The different types of Software Testing The categorization of software testing is a part of diverse testing activities, such as test strategy, test deliverables, a defined test objective, etc. And software testing is the execution of the software to find defects. The purpose of having a testing type is to confirm the AUT (Application Under Test). To start testing, we should have a requirement, application-ready, necessary resources available. To maintain accountability, we should assign a respective module to different test engineers. The software testing mainly divided into two parts, which are as follows: • Manual Testing • Automation Testing What is Manual Testing? Testing any software or an application according to the client's needs without using any automation tool is known as manual testing. In other words, we can say that it is a procedure of verification and validation. Manual testing is used to verify the behavior of an application or software in contradiction of requirements specifica...

What is Path Testing in Software Testing? Path testing is a structural testing method that involves using the source code of a program in order to find every possible executable path. It helps to determine all faults lying within a piece of code. This method is designed to execute all or selected path through a computer program. Any software program includes, multiple entry and exit points. Testing each of these points is a challenging as well as time-consuming. In order to reduce the redundant tests and to achieve maximum test coverage, basis path testing is used. Table of Content: • • • • Basis Path Testing in Software Engineering Basis Path Testing in software engineering is a In software engineering, Basis path testing involves execution of all possible blocks in a program and achieves maximum path coverage with the least number of test cases. It is a hybrid method of branch testing and path testing methods. Here we will take a simple example, to get a better idea what is basis path testing include In the above example, we can see there are few conditional statements that is executed depending on what condition it suffice. Here there are 3 paths or condition that need to be tested to get the output, • Path 1: 1,2,3,5,6, 7 • Path 2: 1,2,4,5,6, 7 • Path 3: 1, 6, 7 Steps for Basis Path testing The basic steps involved in basis path testing include • Draw a control graph (to determine different program paths) • Calculate • Find a basis set of paths • Generate test cases to...

White Box Testing is a testing technique in which software’s internal structure, design, and coding are tested to verify input-output flow and 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. 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 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. 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 “ In this white box testing tutorial, you will learn: • • • • • • • • • • White Box Testing Video Click White box testing involves the testing of the software code for the following: • Internal security holes • Broken or poorly structured paths in the coding processes • The flow of specific inputs through the code • Expected output • The functionality of conditional loops • Testing of each statement, object, and function on an individual basis The testing can be done at system, integration, and unit levels of software development. One of the basic goals of whitebox testing is to verify ...

Closed 4 years ago. White-box testing focuses on testing implementation details of a component. Black-box testing sees a component as a black box accessible only via its API. Both Lean and Agile software development focus on the value delivered to the customer (Lean calls everything else "waste"). Taking this seriously, white-box testing has no place in development as it doesn't represent any customer value: Values are specified by requirements, requirements define contracts and contracts are implemented (for example) by interfaces: interface MyUseCase The implementation is probably using some e-mail client and the naive approach to test it would be to create a mock of the client and verify, that a sending method was called. But what would be the point of such a test? Such a test brings me no guarantee that the e-mail was really sent. So, testing implementation doesn't help in this case as well. Probably only way how to test this would be to create a test mailbox and pull the sent e-mail with an e-mail client. Are my assumptions correct? When does testing implementation make sense? "In fact, if there is a method which doesn't work and the result is still correct, the method is probably just unused or redundant" - or, equally likely, the test has a bug. Other than that, your question is really just the old issue of unit testing vs. integration testing. There have been countless discussions on that topic here already. Let me add here: the linked question may not be literall...

Testing is an essential stage of the modern software development process. Regardless of the adopted development methodology, whether it is a traditional one, such as cascading, or an agile one, such as However, not all tests are the same. There exist multiple categories of tests. These categories differentiate, for example, how the tests operate in a software (black-box and white-box) or which to test in the software (unit, integration, system, and acceptance). In this tutorial, we’ll specifically study the black-box and white-box tests. First, we’ll have a brief introduction to tests in software development. Thus, we’ll specifically investigate what are and how white-box and black-box tests work. In the end, we’ll outline the explored concepts and compare white- and black-box tests in a systematic summary. 2. Testing in Software Development Testing consists of the process of evaluating the functionalities of a software program. The testing process’s main objective is checking if the developed software behaves as it is supposed to. This process typically inspects low-level units, checking if they were implemented as per their technical specification; and the integration of such units into a complete system, analyzing how they cooperate. Moreover, developers also test high-level routines, acting as the end users of the developed system. Technically, we can execute tests manually or program them for automatic execution. The benefit of using automated tests is that they work ...