The Definitive List of 55 Types of Software Testing

A-Z Guide to Software Testing

“Quality is never an accident; it is always the result of intelligent effort.”
– John Ruskin

Many studies and researches have been done to identify the real reasons behind the software startup failures. The common reason that emerged in such reports is the poor quality assurance during the software development process. Thus, it is not surprising for a software organization to spend 40% of its working hours on testing.

There are plenty of other reasons which explain to us as to why software testing is critical and what the real things are that we ought to consider while testing any product or application. That is why, to enhance the software development standards, Net Solutions has attained Level 3 in the Institute for Software Quality’s (IFSQ) standards.

Types of software testing such as Agile Testing, Non-Functional Testing, Automation Testing, Functional Testing, and their subtypes are common in the industry. Each kind of testing has its own advantages, features, and disadvantages.

This blog lists all types of software testing that are available in the industry and are used on a day-to-day basis or once in a while.

1. Ad-hoc Testing

Ad-hoc Testing

This is one of the software testings which is exceptionally casual and unstructured. Any tester with no reference to any experiment or test configuration records can perform this test. The intention of Ad-hoc testing is to discover defects that were not found by existing tests.

2. Acceptance Testing

Acceptance Testing

Acceptance testing is a formal type of testing technique. The end client performs this type of software testing. The point of this testing is to check if the product affirms to their business needs and to the prerequisites put forward by them.

3. Accessibility Testing

Accessibility Testing

Accessibility testing is a subset of usability testing, whose focus is to verify both usability and accessibility. The aim is to decide whether the content of the site can be effectively accessed by physically impaired individuals or not.

4. Agile Testing

Agile Testing

Agile Testing is like programming testing that accommodates an Agile software development approach and practices. Dexterous testing permits steady and iterative coding and testing.

5. API Testing

API Testing

API testing is a type of software testing that is like unit testing. Every Software API is tried according to API determination. If APIs are not complex and do not necessitate broad coding, the testing group performs API testing.

6. Monkey Testing

Monkey Testing

A tester performs Monkey Testing with an assumption that the monkey uses the application. It means that the tester tests the software with the assumption that like a monkey, random input or values will be entered without any understanding of the application.

The objective of this testing is to check if an application or system crashes on receiving random input values/data.

7. All Pairs Testing

All Pairs Testing

Otherwise called Pair-Wise Testing, it is a black box testing method and a software testing concept where we try each input in sets of sources of information. It tests programming functions with all conceivable information combinations.

8. Beta Testing

Beta Testing

Beta Testing is part of the product development process. It is the type of software testing performed by “real users” of the software application in a “real environment”. It is the final test before discharging or giving over a product to end clients. Thus, it is a type of external User Acceptance Testing.  Fruitful completion of Beta testing implies that the client has acknowledged the product.

9. Black Box Testing

Black Box Testing

Black Box Testing is a type of testing technique wherein there is no need for analysts to know coding or interior structure of the product. Also known as Discovery Testing, this strategy depends on testing programming with different information sources and approving outcomes against expected output.

10. Backward Compatibility Testing

Backward Compatibility Testing

It is a kind of a programming testing with an aim to check if the fresher variant of the software can work effectively over the previous version of the software. And also to look into factor if the more up-to-date form of the software works fine with table structure, data structures, and records made by the past version of the product.

11. Boundary Value Testing (BVT)

Boundary Value Testing (BVT)

This kind of testing technique follows a concept called, “error aggregates at boundaries.” It is one of the most extensive types of test that is run on software to check for the defects at boundary conditions. The testing is done for values 101, 100, 99, 2, 1 and 0 for the accepted values of 1 to 100.

12. Big Bang Integration Testing

Big Bang Integration Testing

As the name suggests, it is something that takes in all of the modules, mostly all of them are developed and coupled together in an approach that tests altogether. This approach of software testing is very effective as it enables software testers to save time as well as their efforts during the integration testing process.

13. Bottom-Up Integration Testing

Bottom-Up Integration Testing

This kind of test is like an inspector going to check the smallest parts of the roller coaster first, and the last thing would be riding the roller coaster. This type of software testing approach begins with testing smaller or sub-systems of the software, and the flow continues until it ends up covering the entire software system. Here, a small portion means the size, completeness, and complexity of modules and other parts.

14. Branch Testing

Branch Testing

Branch test is a type of testing technique that uses White Test Box method. The test cases are designed to check the codes for every branch. It is applied in use when a unit test is conducted.

15. Browser Compatibility Testing

Browser Compatibility Testing

The testing teams usually conduct Browser Compatibility Testing to test the software system’s compatibility. It is a sub-type of testing that is used for web applications to be checked on different types of operating systems and browsers.

16. Compatibility Testing

Compatibility Software Testing

When a software system is required to be tested on different kinds of operating systems, application servers, hardware, databases, bandwidth, web servers, emulators, hardware peripherals, different configuration, processors, different browsers, and different versions of the browsing system, etc., compatibility testing is practiced.

17. Component Testing

Component Software Testing

Developers perform this type of test. Once the unit test has been performed, it is followed by Component Testing. This test uses a group of units as a whole code, and then the codes are checked rather than conducting tests on individual functions.

18. Crowdsourced Testing

Crowdsourced Software Testing

Crowdsourced Testing is a trend in emergence in the world of software testing which aims to exploit the benefits, effectiveness, and efficiency of crowd-sourcing and the cloud platform. In this case, the tester tests the software under diverse realistic platforms which makes it more reliable, cost-effective, fast, and bug-free.

19.Dynamic Testing

Dynamic Software Testing

This test can be performed either in a dynamic manner or in a static manner. It is a type of software testing where tests are executed on code only and is thus known as Dynamic Testing. It checks the performance, regression, and functioning of the software system.

20.End-To-End Testing

End-To-End Software Testing

This kind of test is similar to the system testing that involves and covers all the aspects of the application environment mimicking a situation where the entire world is using the app. For example, like interacting with other hardware, systems, or applications if required. The QA team performs such a test.

21. Endurance Testing

Endurance Software Testing

This test is done to check any kind of memory leaks or any other problem that might come up with prolonged use or execution. Performance engineers perform this type of testing technique.

22. Fault Injection Testing

Fault Injection Software Testing

QA testing team performs this type of software testing. It is done by introducing faults to the codes to improvise the entire functioning and coverage, usually by stress testing to make the software robust and stable for the user.  Use tools like BStorm, Mu Service Analyzer, Holodeck, and Xception to conduct such a test.

23. Formal Verification Test

Formal Verification Software Test

The mathematics is put into a test to come through the proving or disproving of the correctness of an algorithm. This test is performed by the QA team, and it involves the program to satisfy the formal specification of the software’s behavior.

24. GUI Software Testing

GUI Software Testing

GUI stands for Graphical User Interface. In this case, you interact with the computer, using images rather than text. GUI testing is a type of testing technique where the Graphical User Interface of the application is put under test. This testing involves checking the screens with controls like menus, buttons, icons, and all types of bars—toolbar, menu bar, dialog boxes, and windows, etc.

25. Grey Box Testing

Grey Box Software Testing

It is grey for obvious reasons. This test is an assortment of Black Box and White Box Testing. The test aims to test a part of software against what the specification says. It comes up with a defect that is caused by any improper structure or by improper use of the application.

26. Hybrid Integration Testing

Hybrid Integration Software Testing

We realize that Integration Testing is a stage in programming testing, in which independent modules are joined and tried as a solitary element. Amid that stage, the interface and the correspondence between every single one of those modules are tried. There are two famous methodologies for Integration Testing—Top-down Integration Testing and Bottom-up Integration Testing.

In Hybrid Integration Testing, we exploit the advantages of Top-down and Bottom-up methodologies. As the name suggests, we utilize both the integration systems.

27. Happy Path Testing

Happy Path Software Testing

This type of software testing is a well-defined test case using known input, which executes without exception and produces an expected output.

It is put in use on an application to look for valid and positive inputs so that the core functioning of the application works the way it should.

28. Incremental Integration Testing

Incremental Integration Software Testing

Testers or programmers perform Incremental Integration Testing. It is a Bottom-up approach to go for a continuous test of an application. Addition of new functionalities to application paves the way for this type of software testing. The test conductor has to make sure that the application functions and its modules are independent enough to test separately.

29. Install/Uninstall Testing

Install Uninstall Software Testing

As the name suggests, the test conducted under this umbrella checks for the app or the software’s functioning of installing and uninstalling on different platforms. We make several checks to look for errors or corruption, if any.

30. Load Testing

Load Testing

It is a sort of non-functional testing, and its goal is to check the amount of burden or most extreme outstanding burden, a framework can deal with no execution debasement.

Load Testing finds the most extreme limit of the framework under explicit load and finds any issues that can reason the product execution corruption.

31. Loop Testing

Loop Testing

Loop Testing is a type of software testing that totally centers around the legitimacy of the loop developments and constructions. It is one of the pieces of Control Structure Testing (way testing, information approval testing, condition testing).

32. Mutation Testing

Mutation Testing

Mutation Testing is a sort of white box testing in which a tester makes a change in the source code of one of the programs. It checks whether the current experiments can identify the deformities in the framework or not. The adjustment in the program source code is extremely negligible with the goal that it mustn’t affect the whole application, just the particular zone that is witnessing the effect.

33. Model-Based Testing

Model-Based Testing

Model-Based Testing is a software testing technique where a tester tests the runtime conduct of the product. Its aim is to check whether the software can stand against the expectations or predictions made by a model. A model is a portrayal of a framework’s conduct and behavior.

34. Negative Testing

Negative Testing

Negative Testing is a method of testing an application or system that ensures that the plot of the application is according to the requirements and can handle the unwanted input and user behavior. The input of erroneous or invalid information initiates this test.

35. Non-Functional Testing

Non-Functional Software Testing

Non-Functional Testing is a type of software testing to check non-functional aspects (performance, usability, reliability, etc) of a software application. The objective is to make sure the response time of the software or the application is quick enough as per the requirement.

36. Operational Testing

Operational Testing

The testing team conducts this type of software technique to find out the proper functionality and operations of the framework. This is undoubtedly a very important test that alters and decides the fate of the app or software.

37. Orthogonal Array Testing

Orthogonal Array Testing

Orthogonal array testing is a black box testing technique that is a systematic, statistical way of software testing. It takes place when the number of inputs to the system is relatively small but too large to allow for exhaustive testing of every possible input to the systems.

38. Performance Testing

Performance Testing

Performance Testing is a type of software testing to ensure software applications perform well under their expected workload. Its aim is to make sure that the framework meets the execution prerequisites. This type of testing utilizes distinctive execution and stress devices.

39. Penetration Testing

Penetration Testing

The other names of Penetration Testing are Pen Testing or Ethical Hacking. With an aim to find security vulnerabilities that an attacker could exploit, it is the practice of testing a computer system, network or web application.

40. Pair Testing

Pair Testing

It is a type of software development testing method in which two colleagues cooperate at one console to test the product application. One does the testing, and the other analyzes or reviews the testing. This is possible between one tester and developer or business analyst or between two analysts, with the two members alternating at driving the keyboard.

41. Recovery Testing

Recovery Testing

Recovery Testing decides whether the framework can proceed with the task after a fiasco. In software testing, recovery testing is the activity of testing how well an application is able to recover from crashes, hardware failures, and other similar problems.

42. Regression Testing

Regression Testing

Regression Testing is a type of software testing to confirm that a recent program or code change has no adverse effects on existing features. It is hard to cover all the frameworks in Regression Testing, so for these sorts of testing, testers utilize mechanization testing instruments.

43. Sanity Testing

Sanity Testing

The main aim of Sanity Testing is to check whether the planned functionality is working as expected. Sanity test helps avoid wasting time and cost involved in testing if the build fails. The tester should reject the build upon build failure.

44. Security Testing

Security Testing

Security Testing is a type of software testing done to secure the product or application or site from interior and outer dangers. It aims at verifying 6 basic principles as listed below:

  • Confidentiality
  • Integrity
  • Authentication
  • Authorization
  • Availability
  • Non-repudiation

45. System Testing

System Testing

System Testing is a level of software testing that conducts the test of complete and integrated software. The purpose of this test is to evaluate the system’s compliance with the specified requirements.

46. Stress Testing

Stress Testing

Stress Testing is defined as a type of software testing which aims at verifying the stability & reliability of the system. Also, this test mainly determines the system on its robustness and error handling under extremely heavy load conditions.

47. Top-Down Integration Testing

Top-Down Integration Testing

The aim of Top-Down Integration Testing—integration testing technique—is to simulate the behavior of the lower-level modules. Group of testers directs this type of testing.

48. Thread Testing

Thread Testing

First of all, it is a top-down testing procedure where the dynamic coordination of segments pursues the execution of subsets of the prerequisites. Testing groups normally perform this type of testing.

Following are the types of Thread-Based Testing:

  • Single-thread testing: A solitary thread testing includes one application exchange at once
  • Multi-thread testing: A multi-thread testing includes a few simultaneously dynamic transactions at once

49. Upgrade Testing

Upgrade Testing

Upgrade Testing involves testing an upgrade to the existing software. It is a software testing tool which aims to test whether an upgrade can be installed on an existing user’s machine.

50. Unit Testing

Unit Testing

Unit Testing of programming applications finishes amid the advancement (coding) of an application. The goal of Unit Testing is to detach an area of code and confirm its accuracy. In procedural programming, a unit might be an individual capacity, function, procedure or strategy. Normally, developers perform this type of testing technique.

51. Usability Testing

Usability Testing

It is a type of non-functional testing technique that aims to measure the easiness of the usage of the system by the end users. Following parameters help in the evaluation and measurement:

  • Level of Skill required to use the software
  • Time required to learn the usability of the software
  • Assessment of a user’s attitude towards using the software

52. Volume Testing

Volume Testing

Volume testing aims to analyze the system performance by increasing the volume of data in the database. It is normally led by the execution or the performance engineer.

53. Vulnerability Testing

Vulnerability Testing

Vulnerability testing is a software testing technique with an aim to evaluate the quantum of risks involved in the system in order to reduce the probability of the event. Internal testing groups perform this type of software testing.

54. White Box Testing

White Box Testing

This type of software testing is based on learning of the inside rationale of an application’s code and incorporates tests like the inclusion of code articulations, branches, ways, and conditions. Programming engineers perform this type of software testing technique.

55. Workflow Testing

Workflow Testing

Workflow Testing is a product testing type, which checks every work process precisely and mirrors the business procedure. A work process is a progression of undertaking to create an ideal result, which more often includes a few phases or steps. Work process can be either in a successive way or parallel with various advances happening all the while.

Types of Software Testing in a Nutshell

All the above-mentioned types of software testing techniques are just a part of the testing process. However, there are a plethora of other types, but not all of them are used in all types of projects. Also, there are many alternative definitions of these software testing concepts, but the core concept is the same everywhere as discussed in the blog.

These testing types, processes, and their implementation methods keep changing as and when the project, requirements, and scope changes.

PS: Do you know any that we missed? Send us a note and we shall add it in!

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Ramanpreet Singh

About the Author

Ramanpreet is a Quality Control lead, having roomy experience in Software Testing. He loves to explore new opportunities in functional as well as non-functional software testing. He is always looking for working in new domains and testing mission critical projects. Philanthropist by nature, he occasionally cooks great food for family too.

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