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White box testing or unit testing: To do white box testing, knowledge of internal logic code is required. It is mostly done by developers.
Black box testing: The functionality of an application is tested; logic code is not required. This testing is done by testers.
Block box or system testing: Testing the application without knowledge of underline code of the application. it is done by the testers.
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White box testing or glass box testing.
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Types of testing is broadly classified as Black box testing and white box testing
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When you want to test a program, there is two types: white box testing and black box testing. Black box testing means you don't need to know about program implements or how it functions. Just program's requirements. White box testing, you must to check every ways your program should go to eliminate bugs.
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Dynamic white-box testing, in a nutshell, is using information you gain from seeing what the code does and how it works to determine what to test, what not to test, and how to approach the testing. Another name commonly used for dynamic white-box testing is structural testing because you can see and use the underlying structure of the code to design and run your tests.
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1.Path testing
2.Conditional testing
3.Loop testing
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White box testing is when the tester has full access to and knowledge of the unit under test.
Black box testing is when he doesen't and is only allowed to enter inputs and verify outputs.
Each has advantages.
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White Box Testing: It is also known as Clear Box Testing or Glass Box or Open Box This is used to find internal functionalities of a software like conditional loops,statement coverage.It is mainly done by the Developers.
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regression testing is a white box testng
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A white box tester, also known as clear box testing, is a way of testing software that tests the internal workings instead of its functionality. To be a white box tester one could try applying to software companies such as Microsoft.
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Hi All,
I think the answer for this question is,
Testing method :Verification(review) and Validation
Testing types : Basically static and dynamic-> in dynamic testing further can be classified into structural(white box) and functional(black box) testing
Testing Technique : in white box testing we have 1) loop coverage 2)statement coverage 3) condition coverage 4) decision coverage
in black box testing we have 1) Equilance partioning, 2)boundary value analysis 3) error guessing
Testing Levels : Unit testing,
integration testing systemtesting ,
Acceptance testing
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Responsibilities of White Box Testing are:
concentrate on syntax:Builiding according to the standards.
Statement Coverage:looping,Branching
Memory Likeage
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Charles W White has written:
'Dynamic testing of a two-dimensional box truss beam' -- subject(s): Testing, Trusses
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Yellow box testing is basically an error message testing.. Yellow box testing is basically an error message testing..
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Black-Box Testing is a technique of testing without having any knowledge of the interior workings of the application.The tester is oblivious to the system architecture and does not have access to the source code. Typically, while performing a black-box test, a tester will interact with the system's user interface by providing inputs and examining outputs without knowing how and where the inputs are worked upon.
White-box testing is the detailed investigation of internal logic and structure of the code. White-box testing is also called glass testing or open-box testing. In order to perform white-box testing on an application, a tester needs to know the internal workings of the code.
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Combining development testing and operational testing allows for software testers to do both white box and black box testing. That is, it allows for the code to be tested, while functional requirements are also tested, making for a more smooth development cycle.
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You always need both. What white box testing does is show you what oddball things need to be tested for - like the routine that takes 25% of round-off error, and adds it to my account (If I take it ALL, someone will notice). Black box testing should check the full functionality of the routine and the way it handles erroneous input.
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White-box test design techniques include:
- Control flow testing
- Data flow testing
- Branch testing
- Path testing
- Statement coverage
- Decision coverage
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Black-box testing is a term used by software designers and engineers, to describe a method they use to test that the software is working properly. Unlike white-box testing, it examines the software's functionality, without looking at its internal workings.
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1.Static testing involves verification of activities of the developed software where as dynamic testing involves working with the software, giving input values and checking if the output is as expected.
2.Review's, Inspection's and Walkthrough's are static testing methodologies.Unit Tests, Integration Tests, System Tests and Acceptance Tests are few of the Dynamic Testing methodologies.
3.Static testing is done before the code deployment (verification stage) where as dynamic testing is done after code deployment(validation stage).
4.Static testing is more cost effective then dynamic testing.
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Here are 15 software testing interview questions:
What is software testing?
What is the difference between functional and non-functional testing?
What is the difference between manual and automated testing?
What are the different types of testing?
What is a test case?
What is regression testing?
What is the difference between black-box and white-box testing?
What is the V-Model of software testing?
What is exploratory testing?
What is smoke testing?
What is the difference between severity and priority of a bug?
What is the purpose of test automation?
What is the defect life cycle?
What is the difference between Load Testing, Stress Testing, and Performance Testing?
What is the role of a Test Manager in a testing team?
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min = A[0]; I = 1; while (I < N) { if (A[I] < min) min = A[I]; I = I + 1; } print min
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White-box penetration testing is a method where the tester has full knowledge of the system, including source code, architecture, and credentials. This allows for a deep and thorough security assessment.
It simulates an insider attack—like one from a developer or employee with access—making it ideal for identifying hidden flaws in logic, code, or configuration. Unlike black-box testing (where the tester knows nothing), white-box testing is faster and more focused on quality over guessing.
It's a powerful way to uncover vulnerabilities before they can be exploited.
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In software development, static testing, also called dry run testing, is a form of software testing where the actual program or application is not used. Instead this testing method requires programmers to manually read their own code to find any errors. Static testing is a stage of White Box Testing.
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It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
It is not necessary, but it can help. It is possible to be a tester without knowing any languages. It depends on what kind of testing you are doing. If you are doing black box testing, you are basically running a program to see does it work. To do that you don't need to know any programming or what language it is even written in. If you are doing white box testing, you are looking at the actual code, in which case you will need to know a bit about the language being used.
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Basics of software testing
There are two basics of software testing: blackbox testing and whitebox testing.
Black box testing is a testing technique that ignores the internal mechanism of the system and focuses on the output generated against any input and execution of the system. It is also called functional testing.
White box testing is a testing technique that takes into account the internal mechanism of a system. It is also called structural testing and glass box testing.
Black box testing is often used for validation and white box testing is often used for verification.
Types of testing
There are many types of testing like
- Unit Testing
- Integration Testing
- Functional Testing
- System Testing
- Stress Testing
- Performance Testing
- Usability Testing
- Acceptance Testing
- Regression Testing
- Beta Testing
Unit testing is the testing of an individual unit or group of related units. It falls under the class of white box testing. It is often done by the programmer to test that the unit he/she has implemented is producing expected output against given input.
Integration testing is testing in which a group of components are combined to produce output. Also, the interaction between software and hardware is tested in integration testing if software and hardware components have any relation. It may fall under both white box testing and black box testing.
Functional testing is the testing to ensure that the specified functionality required in the systemrequirements works. It falls under the class of black box testing.
System testing is the testing to ensure that by putting the software in different environments (e.g., OperatingSystems) it still works. Systemtesting is done with full system implementation and environment. It falls under the class of black box testing.
Stress testing is the testing to evaluate how system behaves under unfavorable conditions. Testingis conducted at beyond limits of the specifications. It falls under the class of black box testing.
Performance testing is the testing to assess the speed and effectiveness of the system and to make sure it is generating results within a specified time as in performance requirements. It falls under the class of black box testing.
Usability testing is performed to the perspective of the client, to evaluate how the GUI is user-friendly? How easily can the client learn? After learning how to use, how proficiently can the client perform? How pleasing is it to use its design? This falls under the class of black box testing.
Acceptance testing is often done by the customer to ensure that the delivered product meets the requirements and works as the customer expected. It falls under the class of black box testing.
Regression testing is the testing after modification of a system, component, or a group of related units to ensure that the modification is working correctly and is not damaging or imposing other modules to produce unexpected results. It falls under the class of black box testing.
Beta testing is the testing which is done by end users, a team outside development, or publicly releasing full pre-version of the product which is known as beta version. The aim of beta testing is to cover unexpected errors. It falls under the class of black box testing.
Blackbox TestingWhitebox Testing
Unit Testing
Integration Testing
Functional Testing
System Testing
Stress Testing
Performance Testing
Usability Testing
Acceptance Testing
Regression Testing
Beta Testing
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Black box testing - first lets understand the term - u can not see inside a black box. so u just know that what goes in and what comes out. for eg. at airport you checkin your bag and at next airport u get your bag. what happens in between you dont know.
So in blackbox testing we do functional testing. Some techniques are boundary value analysis, class, etc. You do not need to know how the code works and you don't see it. You just need to know what it should do and then check does it do it by entering in data and seeing what happens. As a very simple example, it may be a program to do calculations. You enter some numbers and check if the program gives you the correct results. You don't need to know exactly how it does the calculation, just that it works. You don't need to know anything about programming to do black box testing.
White box: or glass box testing - You know what is everything inside and processed. This requires knowledge of the code of the program and knowledge of the language being used. You can check what each line does and how it does it. So for our calculations, you would see how those calculations are actually done. You can then fix any problems you find. People who don't know anything about programming cannot do white box testing.
Sometimes if an error is found in black box testing, it is necessary to look directly at the code to see what is going wrong, and you are then performing white box testing.
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Integration testing - Its like increment Testing, where we test individual components and their effect on other components as and when they are added.
System Testing - System is tested as a whole. You may say that it is integration testing when last component is added.
White box test cases are mainly designed and executed by developers or a separate white box test team. This can happen in detail design/coding phase generally during.
Blackbox test cases are written once requirements are freezed by test team in parallel to design phase as per V model.
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; ticking-box testing : a widely used philosophy of testing, in which no testing is done after the project is fairly well debugged -- the program is given to customer's for trial and acceptance (Robert Kruse)
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ticking-box testinga widely used philosophy of testing, in which no testing is done after the project is fairly well debugged -- the program is given to customer's for trial and acceptance.ticking means default code of software testing.
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red box testing is used to test products on hardware devices, networking components like protocolss Venkat 09966180818
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Software testing can be black box testing and while box testing.
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Training in software testing equips individuals with essential skills to identify bugs, ensure software quality, and implement testing methodologies effectively. It typically covers manual and automated testing, test case creation, and using tools like Selenium or JIRA. If you're looking for comprehensive training, Uncodemy offers courses in software testing across cities like Noida, Delhi, and Lucknow, providing both practical knowledge and placement assistance to help you build a solid foundation in this field.
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Visual Studio has everything for testing software.
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path coverage is one of the metrics used in white box testing to check whether each of the possible paths in each function have been followed.
A path is a unique sequence of branches from the function entry to the exit.
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The glass box method, also known as white-box testing, is a software testing technique where the tester has access to the internal code of the application being tested. This method involves designing test cases based on the internal logic and structure of the code to ensure thorough test coverage. It is useful for identifying errors related to the code implementation and ensuring that all paths within the code are tested.
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Software testing techniques are approaches you take towards running a test case. For example at the highest level you may take a black box approach or a white box approach to testing a piece of software. Where with a black box approach you don't understand the internals of the software you are testing but you do know what range of inputs the software can accept and from that you can deduce the expected results. With a white box approach you have a much better understanding of how the software works (perhaps you've been involved in a code review with the developers) and you can create your tests based on exercising the code knowing that the software should do x, y and z with the inputs.
Software testing tools however would be employed to help you achieve the approaches you plan to take with testing a piece of software. So taking the black box testing approach discussed above you may use a test data generation tool to help you create the inputs for your black box testing technique. Another example would be using a data comparison test tool to compare expected results with actual results once the tests have been exercised.
So in conclusion a test technique describes the approach you might take to test a piece of software, where as a software testing tool would be a method you employ to help you achieve the aims of the software test.
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Black Box Testing
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Sandbox testing is basically ability of an application to submit and process transcations within the application when its not "live".
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What Company Logo is a Red Box with white Letters
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Black box testing:- Internal system design is not considered in this type of testing. Tests are based on requirements and functionality.
White box testing:- This testing is based on knowledge of the internal logic of an application's code. Also known as Glass box Testing. Internal software and code working should be known for this type of testing. Tests are based on coverage of code statements, branches, paths, conditions.
Unit testing :- Testing of individual software components or modules. Typically done by the programmer and not by testers, as it requires detailed knowledge of the internal program design and code. may require developing test driver modules or test harnesses.
Incremental integration testing :- Bottom up approach for testing i.e continuous testing of an application as new functionality is added; Application functionality and modules should be independent enough to test separately. done by programmers or by testers.
Integration testing: - Testing of integrated modules to verify combined functionality after integration. Modules are typically code modules, individual applications, client and server applications on a network, etc. This type of testing is especially relevant to client/server and distributed systems.
Functional testing:- This type of testing ignores the internal parts and focus on the output is as per requirement or not. Black-box type testing geared to functional requirements of an application.
System testing :- Entire system is tested as per the requirements. Black-box type testing that is based on overall requirements specifications, covers all combined parts of a system.
End-to-end testing: - Similar to system testing, involves testing of a complete application environment in a situation that mimics real-world use, such as interacting with a database, using network communications, or interacting with other hardware, applications, or systems if appropriate.
Sanity testing :- Testing to determine if a new software version is performing well enough to accept it for a major testing effort. If application is crashing for initial use then system is not stable enough for further testing and build or application is assigned to fix.
Regression testing :- Testing the application as a whole for the modification in any module or functionality. Difficult to cover all the system in regression testing so typically automation tools are used for these testing types.
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