Black Box Testing
What Is Black Box Testing?
Black Box Testing Definition
Black box testing, also known as behavioral testing, is a type of testing that is performed on software without having to know the internal code structure. The focus of this testing is on the input and resultant output rather than the mechanisms that enable the output. The “black box” in this case represents the program, and the black box is a reflection of the internal code structure being blocked out.
Black Box Testing Example
Black box testing can be performed on any software program since it is not necessary for you to be familiar with the code. Some examples of black box testing include:
- Functional testing
- Nonfunctional testing
- Regression testing
Black Box vs. White Box Testing
Black box testing and white box testing are two entirely different styles of testing for software. While they do have some similarities, it is important to distinguish what makes them different from each other.
Black Box Testing
Black box testing is performed by a tester, and it seeks to assess the input and output of a program without looking at the internal structures. It is typically less time consuming than white box testing, and it is primarily concerned with the behavior of your software.
White Box Testing
White box testing focuses on the function of a software while taking into account its code. It is usually performed prior to the software’s launch by the developers. White box testing takes more time than black box testing, and it is concerned with the logic of the software.
Gray Box Testing
Gray box testing serves as a compromise between white box testing and black box testing in that it looks at the functionality of a software with only partial knowledge of the code. It can be used to evaluate all the aspects of an application or to uncover any user interface issues.
Black Box Testing Techniques
Edge Case Testing
Edge cases are errors that occur very infrequently. These errors can be as minor as a visual inconsistency or as serious as a total software crash. In order to root out these edge cases before they become an issue, regression testing can be employed to find the source of the problem.
Corner Case Testing
While edge cases occur when only one operating parameter is at an extreme, corner cases occur when multiple parameters are at an extreme. In corner case testing, multiple parameters are tested to identify where issues could arise.
Iron Corner Case Testing
Iron corner case testing is also known as boundary value analysis, and it seeks to test cases just outside and just inside edge cases.
User Scenario Case Testing
User scenario case testing asks the tester to step into the shoes of the end user. It utilizes actual test cases to ensure that all possible scenarios are addressed. This type of testing focuses on end-to-end scenarios to handle complex problems.
Decision Table Testing
Decision table testing is a form testing that assesses different combinations of inputs and places them in a table. The corresponding outputs are categorized into “true” or “false,” and these are used to determine where there is a problem that needs resolving.
Error guessing is the process by which a developer or tester determines where there may be errors in the software and writes corresponding test cases to address these potential errors so that they may be corrected.
Ranorex: Black Box Security Testing Tools
At Ranorex, we offer an array of tools for different types of black box testing as a comprehensive solution, so regardless of what type of testing you need to employ, we can help you implement it.
Black Box Test Automation
With Ranorex Studio, you can automate your black box testing by selecting from a range of various test types. These will help you address a range of issues that may arise..
UI Object Recognition
Ranorex Studio also tracks and analyzes all elements of your user interface and inputs them into a repository for your convenience. This allows you to maintain and manage all identified objects with ease even when your UI changes.
You can additionally automate data-driven testing by using corner, edge, or boundary cases by setting up variables, linking them to external data sets, and looping through the data. Ranorex Studio even allows you to determine whether to stop a test as a result of a failure or to continue with the next test.
Keyword-driven testing relies on action words that represent the user’s behavior. These include words like “Log On” or “Close Window.” It separately documents the steps that the user actually takes to perform the action. Ranorex Studio provides tools to make automated keyword-driven testing accessible and repeatable.
Cross-Device and Cross-Browser Testing
Ranorex Studio allows you to automate tests on one operating system and then execute them locally or remotely on another. This type of testing ensures that all users, regardless of their system, have a consistent experience.
You can monitor the results of your testing with Ranorex Studio’s customizable reports. These reports can include pie charts, screenshots, and detailed error logs. Additionally, you can jump directly into testing from the report.
Black Box Penetration Testing
Black box penetration testing demonstrates how an attacker would try to perform an attack on a software without any knowledge about the internal code. This test can also be automated to ensure potential weaknesses are addressed before a breach occurs.
Benefits of Automated Black Box Testing
There are many benefits to choosing black box testing for your application, including:
To perform the tests, users don’t need to have technical knowledge/skills because the tests do not look at the code of a particular software.
Execution can be outsourced to external testers or automated because you are solely looking at the functionality of the software.
The risk of false positives is extremely low, and you can be certain that your testing will address all possible issues.
Tests can be quite simple since they seek to model common user behavior. As such, they don’t require learning the system details.
Why Choose Ranorex?
When looking to implement black box testing, there are many benefits to choosing Ranorex, including:
- Reduced maintenance: With Ranorex Studio, you don’t have to start from scratch each time. Our built-in repository allows you to keep track of all your UI elements and manage them even when your UI changes.
- Customer satisfaction: We are committed to customer satisfaction. That is why we have over 14,000 users, including recognizable names like IBM, Siemens, Cisco, and Dell.
- Help center support: If you have any questions or concerns, our help center support team is available to address any issues.
- Free trial: Before you commit to purchasing Ranorex Studio for yourself, we offer a free trial for you to explore all of our features.
- Reusable test modules: Reusable test modules ensure that you save time and reduce room for error.
- Seamless integration: Ranorex Studio integrates seamlessly with an array of software, including Jira, Selenium Grid, and Azure DevOps, among others.
“After automation with Ranorex Studio, our organization’s regression testing time is reduced to 25%. And with the help of build integration, early defect identification is increased from 0 to 10%”
Medium Enterprise Computer Software Company
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- Record-and-replay: robust capabilities to build tests without programming.
- Full development environment: script in C# or VB.NET
- All supported platforms: run tests on Windows desktop, all popular Web browsers, and Android or iOS devices, including real devices and simulators/emulators
- Advanced functionality: Ranorex Spy for machine-trained object detection, Ranorex Coach for test healing, video reporting of test execution, PDF validation, and more.
- Customizable test results reporting: generate HTML, PDF, or JUnit-compatible reports; then send test reports as email attachments.
- Data-driven testing: pull test data from CSV or Excel files, or a SQL database
- Flexible API interface: easily add Ranorex Studio tests to your CI/CD process by integrating with Jenkins, Travis CI, Git, and more.
- Built-in integration with Jira and TestRail