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Apache JMeter vs Selenium: What are the differences?
Introduction:
Key Differences between Apache JMeter and Selenium:
1. **Purpose**:
Apache JMeter is primarily used for performance testing to measure the performance of web applications under varying loads, while Selenium is primarily used for functional testing to automate web browsers for testing web applications' functionality.
2. **Testing Level**:
JMeter is more suitable for testing at the application layer, simulating multiple user requests with different parameters to evaluate the performance, whereas Selenium operates at the GUI level, interacting with elements on web pages like a real user.
3. **Scripting Language**:
JMeter uses its own scripting language (Beanshell) for scripting test scenarios, making it simpler for performance testing, while Selenium supports various programming languages like Java, Python, and C# for writing test scripts, providing more flexibility for functional testing.
4. **Browser Compatibility**:
Selenium supports multiple browsers like Chrome, Firefox, Safari, and Internet Explorer, allowing testers to conduct cross-browser testing, whereas JMeter does not interact directly with browsers but mimics browser behavior for load testing.
5. **Reporting**:
JMeter provides comprehensive test result analysis and reporting features like graphs and statistical data, which are essential for performance testing, while Selenium requires additional plugins or frameworks like TestNG or ExtentReports for generating detailed test reports.
6. **Learning Curve**:
JMeter has a relatively simpler learning curve compared to Selenium due to its user-friendly GUI for creating test plans, making it easier for beginners to start performance testing, while Selenium requires programming skills and familiarity with testing frameworks for writing effective test scripts, suitable for testers with programming knowledge.
Summary: In Summary, Apache JMeter is ideal for performance testing web applications under varying loads with a simple learning curve, while Selenium is preferred for functional testing at the GUI level using various programming languages to automate web browsers for testing web application functionality.
we are having one web application developed in Reacts.js. in the application, we have only 4 to 5 pages that we need to test. I am having experience in selenium with java. Please suggets which tool I should use. and why ............................ ............................ .............................
with the help of selenium we can automate react js for functional testing
I have a team that is not heavy on programming skills. I am looking for a load testing tool that is easy to use. Preferably, the tool should be a record and playback tool without much programming. Also, the tool should be able to test APIs apart from web-based applications. What tool should I opt for?
My choice would be Apache JMeter, It's free and opensource plus it comes with lots of plugins and extendability. Apache JMeter needs a small amount of a learning curve and a basic understanding of Network, Protocols (TCP/IP ports, HTTP(S) and REST/SOAP, etc.) for initial setup. But it doesn't require programming skills. it has a nice record and playback option. You can still carry on without the developer skillset if you follow these steps. 1. Take backup. 2. Start recording and interact with the application. 3. stop recording and save the test case. This will give you your test-bed, after this, after these steps, every time just do Restore from backup and then Playback and observer results.
If you have longer recordings then an understanding of how to modify the recorded scripts will come handy.
For some of the advanced features such as Configuring variables, implementing loops, throttling adding think time, and automating test scaling to the number of users will require good planning of test scenarios and a Developer experience but this is true for any tool (even loader.io)
Disclaimer: I work at k6, and I recommend you try our tool.
It might require some coding skills, but we support a few options to record a user session to autogenerate the load test. Read How to record a browser session with k6 OSS.
The k6 Cloud also supports recording a user session with a Browser Extension. Additionally, it provides a Test Builder UI to generate a load test for testing APIs.
If you have questions or need help, you can ask on Slack and the Community forum.
Pros of Apache JMeter
- Requires no programming knowledge5
- Supports distributed3
- Open-source2
Pros of Selenium
- Automates browsers175
- Testing154
- Essential tool for running test automation101
- Record-Playback24
- Remote Control24
- Data crawling8
- Supports end to end testing7
- Easy set up6
- Functional testing6
- The Most flexible monitoring system4
- End to End Testing3
- Easy to integrate with build tools3
- Comparing the performance selenium is faster than jasm2
- Record and playback2
- Compatible with Python2
- Easy to scale2
- Integration Tests2
- Integrated into Selenium-Jupiter framework0
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Cons of Apache JMeter
- It's GUI-first1
- Too complicated1
Cons of Selenium
- Flaky tests8
- Slow as needs to make browser (even with no gui)4
- Update browser drivers2
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