Black Box Testing

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In the tutorial, we will understand the types and techniques of black-box testing with their processes and advantages. A second topic will focus on white-box tests versus blue box tests. We do black-box tests daily! No matter how much knowledge we've acquired, we do BlackBox Testing every day! The name alone is likely to show the interaction with the system you're testing in a mysterious place you are trying to push.

Do you want to know how to test your code without having any knowledge of its internal implementation?

Black Box Testing is a type of software testing that tests the functionality of an application based on its external specifications. This approach does not require knowledge about the inner workings of the system's design being tested. Instead, it means that testers are only required to have a general understanding of what the software should do and how it should behave in certain circumstances. Still, they don't need detailed programming skills or inside information about the product itself.

With Geolance, we can help you with BlackBox Testing so you can focus on what matters most – creating great products! We provide our clients with high-quality black box testing techniques at cost-effective rates and deliver results within agreed timelines. Our team consists of experienced professionals who will work closely with you throughout each project, from planning through execution until final delivery. Let us take care of all your black box testing needs for you!

Black Box security testing

It is a test where the tester focuses on the code's behaviour without knowing internal implementation. The critical difference between White Box Testing and Black Box Testing is that in White Box Testing, one needs complete knowledge about the internal performance of an application to test it. In contrast, in BlackBox testing, you do not need to know its internal implementation.

Black-box testing, also known as behavioural testing, function testing, or opaque box testing, is a method of software testing that treats the software as a "black box," examining functionality without any knowledge of internal implementation without seeing the source code.

Types of Black Box Testing

1) Testers perform functional Testing:-Functional tests to validate whether SUT behaves according to specification or not.

2) Non-Functional Testing:-Non Functional testing is performed to check the behaviour of SUT in worst conditions, i.e. load on the system, timings, concurrent access on shared resources, and so forth, or check for security vulnerabilities.

3) Security Testing:-Security testers try to break the security of a system to identify possible risks resulting from poor security design, implementation errors, and/or vulnerabilities exploited by attackers. Black box testers usually have a broad knowledge of programming languages used to build applications and networking concepts that may help find those loopholes that hackers can use for intrusion into the system.

4) Regression Testing: It repeats those test cases that had been executed successfully before changing any source code or other program components to ensure no problems have been introduced due to the changes. This type of testing is usually carried out after every build/version of the application is available for testing.

5) Sanity Testing:-Sanity Test cases are used during unit testing where the objective is to check whether or not a part of code can be called successfully. In addition, it tests if the output generated by executing a subset of test cases within an individual test suite results in an error-free execution of the test suite/program.

6) Smoke Testing:-Smoke Testing involves running a minimal set of basic functional tests against each build/release candidate immediately after it has been deployed for general testing, with the purpose being to verify that the build is performing well enough for further testing to begin.

7) Acceptance Testing:-Acceptance Test cases are derived from the Requirement Specifications, and the users execute them to ensure that the software product satisfies user/customer requirements.

8) Usability Testing:-Usability tests involve examining how easy it is for an individual or group of individuals, with particular reference to non-technical users, to learn about and use a product concerning specific design/programming features.

9) Recovery testing:-Recovery tests are designed to test whether, after failure, proper recovery can be performed with minimal loss of data or appropriate notification of failure.

10) Installation Testing:-Installation testing involves testing how easy it is for an individual or group of individuals to install the product on a computer.

11) Compatibility Testing:-Compatibility tests verify whether the system is compatible with different platforms, operating systems, software, browsers, and hardware types.

12) Security Testing:-Security testing verifies that security risks are appropriately identified and appropriate countermeasures. It also aims at identifying coding errors in the source code, which attackers might use to break into system components.

13) Recovery Testing:-Recovery testing verifies that the proper recovery can be performed with minimal loss of data or appropriate notification of failure after failure.

14) Performance Testing:-Performance testing may include validating response times under certain load conditions, resource usage (memory/disk usage), or reliability/stability under a given workload.

15) Load Testing:-Load testing is the process of putting demand on a software system or network and measuring its response. It can be done as part of stress testing to determine how much load a system can handle before performance degrades unacceptably. Still, it is also valuable for capacity planning for websites.

16) Volume Testing:-Volume Testing verifies that the software product does not crash when the user provides extensive input data set with unhealthy data.

17) Compatibility Testing:-Compatibility testing is performed against different operating systems, browsers, applications, whether they are supported by the application or not, etc.

18) Re-Testing: -Re-testing is a critical phase in the regression test cycle. It is common to test software or systems at every build or version that has been made available. Since the product has changed, the testers need to verify that no adverse impacts are caused because of those changes.

19) Acceptance Testing:-Acceptance testing is a type of black-box testing where the tester verifies whether the system under test satisfies the acceptance criteria established as part of its specification and meets requirements specified by clients/users.

20) Recovery Testing:-Recovery Testing is similar to "Sanity" Testing in purpose but different from "Sanity" testing in terms of methodologies and techniques used during recovery testing. Sanity tests are performed on level, whereas recovery tests can be performed at any level.

21) Security Testing:-Security testing is also known as Penetration Testing. It is a simulation of an attack on software or system to identify security breaches quickly and rectified before the hacker gets unauthorized access to the system.

22) Installation Testing:-Installation testing verifies whether the product being installed can be done without user interaction, without errors and if it doesn't have any side effects on other applications or components.

23) Usability Testing:-Usability tests involve examining how easy it is for an individual or group of individuals, with particular reference to non-technical users, to learn about and use a product concerning specific design/programming features.

Black Box vs. White Box Testing

Testing can be either black-box or white box, also known as clear box testing.

Black-box testing treats the software as a "black box." It often ignores the system's internal mechanisms being tested by focusing solely on the outputs generated in response to selected valid and invalid inputs and execution conditions. In other words, test cases are designed from an "outside" perspective. Black-box testers must have a good understanding of what the software is supposed to do, but they do not need to know its internal structure.

In contrast with black-box testing, white-box testing involves a detailed analysis of software's implementation (i.e., its source code). White-box testing is performed by testers that have access to the software's source code and internal mechanisms. White-box testing is often referred to as clear box testing because test cases are designed with knowledge of the internal structure of the tested system.

Black Box Testing

-Black Box Testing is performed on an application or component without knowing its internal mechanism. This type of testing is also known as consumer-based testing. This testing approach will give you an idea about if the product meets end-user requirements, i.e., it should work properly from an end-user perspective. In other words, Black Box Testing includes no actual code review or compiling process before test execution. In this approach, testers simply ensure that all features available in the product are working correctly by using various defined inputs and expected results(regression). Therefore, it is essential to understand that black box testing is not concerned with the internal program structure or implementation approach.

White Box Testing

White-box testing is also known as clear box testing. It can be performed by testers having access to the software's source code and internal mechanism. White box testing is often referred to as clear box testing because test cases are designed to know the system's internals.

Grey box testing

Grey box testing is a combination of Black box and White Box Testing. In this type of approach, test cases are designed based on the information gathered from both user requirements specifications and the software's internal mechanism. It means that testers have access to some application documentation, but they do not have complete details about its internals or source code.

Alpha Testing:-Alpha Testing is a phase in the software testing method process in which all primary functionality of a prototype or release candidate version of a software program is tested. Alpha testing is often employed for off-the-shelf software as an internal acceptance testing before the software goes to beta testing.

Dynamic Analysis - Black Box Testing

Testing can be either black-box or white box, also known as clear box testing.

Black-box testing treats the software as a "black box." It often ignores the system's internal mechanisms being tested by focusing solely on the outputs generated in response to selected inputs and execution conditions. In other words, test cases are designed from an "outside" perspective. Black-box testers must have a good understanding of what the software is supposed to do, but they do not need to know its internal structure.

In contrast with black-box testing, white-box testing involves a detailed analysis of software's implementation (i.e., its source code). White-box testing is performed by testers that have access to the software's source code and internal mechanisms. White-box testing is often referred to as clear box testing because test cases are designed with knowledge of the internal structure of the tested system.

Dynamic Analysis - Grey Box Testing

It is a combination of Black box and White Box Testing. In this type of approach, test cases are designed based on the information gathered from both user requirements specifications and the software's internal mechanism. It means that testers have access to some application documentation, but they do not have complete details about its internals or source code.

Alpha Testing:-Alpha Testing is a phase in the software testing process in which all primary functionality of a prototype or release candidate version of a software program is tested. Alpha testing is often employed for off-the-shelf software as an internal acceptance testing before the software goes to beta testing.

Imperva Runtime Application Self Protection (RASP)

is an end-to-end solution that uses big data to capture security information and raise alerts automatically. The Imperva RASP solution suspects vulnerabilities at runtime before they become a problem for the application.

It provides automated discovery of web application flaws, allows you to quarantine suspicious requests (and their payloads), tests every request with multiple anti-pattern detections, implements accurate anomaly detection algorithms, and rejects or allows recommendations based on established business rules. It's like an antivirus engine but for your Web app!

Conclusion

Dynamic Analysis is more reliable than Static Analysis as it detects the issues at the time of execution. Dynamic testing is a Black Box Testing where Test cases are designed to know the system's internals. In contrast, testers have access to some application documentation in Grey box testing but do not have complete details about its internals or source code.

Black Box penetration testing

is divided into three categories depending upon the tester's knowledge of application details. These include

1) White Box Penetration Testing:-White box penetration testing is also known as precise box penetration testing or glass box testing. Test cases are designed with complete knowledge of application internals and source code.

2) Grey Box Penetration Testing:-Grey box penetration testing falls between black box and white box tests; testers have access to some documentation on the system's components, but they do not possess any prior knowledge about internal structure or programming logic.

3) Black Box Penetration Testing:-Black Box Penetration Testing is further sub-classified into three types, i.e., Static Analysis, Dynamic Analysis & Grey-Box/Black-Box combined analysis.

Static Analysis:-It analyzes software's documentation, requirements, design, or code to identify security vulnerabilities that attackers can exploit. Static analysis requires access to the application's source code and executable code.

Dynamic Analysis:-Dynamic Analysis includes fuzzing, which tests an application against malformed/semi-malformed data to uncover implementation bugs, and penetration testing through simulated real-world events passed into the user interface. In addition, dynamic analysis typically involves black box penetration testing where test cases are designed based on user requirements or functional specifications.

Combined Testing:-Grey box & Black Box testing together is Grey Box/Black Box combined analysis. It combines both dynamic and static approaches in the software testing process.

Types of Black Box Testing

There are three types of black-box testing:

User Acceptance Testing:-In this type of Black Box testing, the application is exposed to the end-user to check for its acceptability. The system is tested just as if a new user were sitting down at it for the first time.

Integration Testing:-In this type of Black Box testing, multiple software modules are combined and tested as a group. For example, One module takes input values from another and processes them to create some other form of output, which gets passed on to another module. All these modules should work together seamlessly; any integration problems should be detected at this level of testing.

Regression Testing:-This kind of Black box testing ensures that existing functionality on the system is not broken by changes to either the code or underlying design of a system. In regression testing, test cases are re-executed after software enhancements and modifications.


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