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Jun 13, 2024 · Black Box Testing focuses on testing the software’s functionality without knowledge of its internal structure, while White Box Testing examines the internal code and logic.
- White Box Testing
White box testing is also known as structural testing or...
- Black Box Testing
Black Box and White Box Testing. Black box testing is a...
- White Box Testing
Learn the difference between white box testing and black box testing, two software testing techniques that examine the functionality and code of software. Compare their characteristics, objectives, types, and advantages and disadvantages.
- Process of White Box Testing
- Testing Techniques
- White Testing Is Performed in 2 Steps
- Features of White Box Testing
- Advantages of Whitebox Testing
- Disadvantages of White Box Testing
Input:Requirements, Functional specifications, design documents, source code.Processing:Performing risk analysis to guide through the entire process.Proper test planning:Designing test cases to cover the entire code. Execute rinse-repeat until error-free software is reached. Also, the results are communicated.Output:Preparing final report of the entire testing process.1. Statement Coverage
In this technique, the aim is to traverse all statements at least once. Hence, each line of code is tested. In the case of a flowchart, every node must be traversed at least once. Since all lines of code are covered, it helps in pointing out faulty code.
2. Branch Coverage:
In this technique, test cases are designed so that each branch from all decision points is traversed at least once. In a flowchart, all edges must be traversed at least once.
3. Condition Coverage
In this technique, all individual conditions must be covered as shown in the following example: 1. READ X, Y 2. IF(X == 0 || Y == 0) 3. PRINT ‘0’ 4. #TC1 – X = 0, Y = 55 5. #TC2 – X = 5, Y = 0
Tester should understand the code wellTester should write some code for test cases and execute themCode coverage analysis:White box testing helps to analyze the code coverage of an application, which helps to identify the areas of the code that are not being tested.Access to the source code:White box testing requires access to the application’s source code, which makes it possible to test individual functions, methods, and modules.Knowledge of programming languages:Testers performing white box testing must have knowledge of programming languages like Java, C++, Python, and PHP to understand the code structure and write tests.Identifying logical errors:White box testing helps to identify logical errors in the code, such as infinite loops or incorrect conditional statements.Thorough Testing: White box testing is thorough as the entire code and structures are tested.Code Optimization:It results in the optimization of code removing errors and helps in removing extra lines of code.Early Detection of Defects:It can start at an earlier stage as it doesn’t require any interface as in the case of black box testing.Integration with SDLC:White box testing can be easily started in Software Development Life Cycle.Programming Knowledge and Source Code Access:Testers need to have programming knowledge and access to the source code to perform tests.Overemphasis on Internal Workings:Testers may focus too much on the internal workings of the software and may miss external issues.Bias in Testing:Testers may have a biased view of the software since they are familiar with its internal workings.Test Case Overhead:Redesigning code and rewriting code needs test cases to be written again.People also ask
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Apr 8, 2024 · Learn the definition, objective, and techniques of black box and white box testing, two common software testing methods. Compare their advantages, disadvantages, and suitability for different levels of testing.
ParameterBlack Box TestingWhite Box TestingDefinitionIt is a testing approach which is used to ...It is a testing approach in which ...AliasIt also knowns as data-driven, box ...It is also called structural testing, ...Base of TestingTesting is based on external ...Internal working is known, and the tester ...UsageThis type of testing is ideal for higher ...Testing is best suited for a lower level ...- Syntax Driven Testing – This type of testing is applied to systems that can be syntactically represented by some language. For example- compilers,language that can be represented by context free grammar.
- Equivalence partitioning – It is often seen that many type of inputs work similarly so instead of giving all of them separately we can group them together and test only one input of each group.
- Boundary value analysis – Boundaries are very good places for errors to occur. Hence if test cases are designed for boundary values of input domain then the efficiency of testing improves and probability of finding errors also increase.
- Cause effect Graphing – This technique establishes relationship between logical input called causes with corresponding actions called effect. The causes and effects are represented using Boolean graphs.
Jan 2, 2024 · Learn the definition, types and techniques of black box and white box testing, two software testing methods based on internal and external perspectives. See examples, videos and related links for more information.
Jun 28, 2024 · White-box testing deeply investigates the processing flows defined in the software source code. Black-box testing, however, is source code-agnostic, analyzing the software through its operational behavior given a set of inputs. Thus, white-box testing strongly relates to the developer’s perspective of software and systems.
