Tag: functional-testing
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Functional vs regression testing: Key differences
Functional testing checks that a feature works the way the requirements say. Regression testing checks that features which already worked still work after a code change. Put simply, functional testing asks "does this work?" and regression testing asks "did we just break something?" The two get mixed up because they often use the same test…
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Automated functional testing: How it works and tools
Automated functional testing means using scripts or tools to check that each feature of an application does what the requirements say, without a person clicking through every step. The tool sends the inputs, compares the result with what was expected and flags anything that breaks, on every build if you want it to. That is…
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Integration Testing vs Functional Testing: Key Differences
Ask five engineers whether a test is "functional" or "integration" and you will probably get three answers. That is not because people are confused. It is because the same test can honestly be both. Here is the short version. Integration testing checks that components work together. Functional testing checks that the software does what the…
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10 Types of API Testing Explained with Examples (2026)
The 10 main types of API testing are functional, performance and load, security, integration, regression, validation, fuzz, contract, end-to-end, and UI-driven testing, each checking a different dimension of how an API behaves. Covering them by hand is slow, which is why teams lean on automation to keep up. Keploy generates tests and mocks across these…
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Functional testing software: Best tools in 2026
Functional testing software is a tool that automatically checks whether each feature of an application works according to its requirements. It sends inputs through the UI or API, compares the actual results with the expected ones and reports any feature that does not behave as specified. You may also see it called functionality testing software…
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Software Quality Assurance Services: A Complete Guide
In today’s fast-paced digital environment, software quality assurance services are no longer a choice in the development process; they are a requirement. SQA is not simply about identifying bugs; it is about preventing defects before they occur and making sure that software consistently delivers a great user experience. This blog will examine what Software Quality…
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Top 10 Futuristic Open Source Testing Tools for Software Testing (Updated)
Bugs don’t wait, and neither should your testing tools. As software grows smarter and faster, the race is on for solutions that can keep pace, efficient, dependable, and ahead of the curve. Open source testing tools are now an essential component of organizations (especially startups) that need to automate their quality assurance process without spending…
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A Complete Guide to API Functional Testing
Imagine deploying a sparkling new feature in your app that performs flawlessly in testing, but when it goes live, it all comes crashing down. Orders won’t process, data won’t sync, and ultimately, the users encounter dead ends. What is wrong? Most typically, the problem is with the APIs not doing what they are supposed to.…
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Unit testing vs functional testing: Key differences
To evaluate our software application’s quality and reliability we are going to have to test our application in a variety of ways. The two most basic forms of testing we have available to us are unit testing and functional testing. Unit testing and functional testing are the TRUE basic building blocks of those different types…
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What is functional testing? Types and examples
Functional testing is a software testing method that checks whether each feature of an application works according to its requirements. Testers give the software inputs, compare the actual outputs with the expected ones, and confirm that user workflows behave correctly, without looking at the internal code. Unlike performance or load testing, functional testing focuses only…