How to solve the issue of JMeter assertions not working?
If the assertions of JMeter are not working, there may be several issues and solutions to consider.
- Placement of assertions is incorrect: ensure that assertions are placed in the correct location. Generally, assertions should be placed after the request that needs to be validated, in order to assert against the response of the request.
- The assertion condition is incorrect: Check if the assertion condition is correct. For example, if you are using a Response Assertion, make sure you have set the correct response code, assertion type, pattern, and matching rules.
- The scope of the assertion is incorrect: make sure the scope of the assertion is correct. If you only want to assert on specific response fields, you can use a JSON Extractor or Regular Expression Extractor to extract the field values, and then use the extracted values in the assertion.
- The logic of the assertion is incorrect: verify if the logic of the assertion is correct. For example, if you are using multiple assertions at the same time, make sure that their logical relationship is correct. You can use logic controllers (such as If Controller or While Controller) to control the execution of assertions.
- The assertion’s matching rule is incorrect: make sure the assertion’s matching rule is correct. For example, if you are using a regular expression for matching, ensure that your regular expression is correct.
- Response data was not correctly extracted: If the assertion condition is based on the response data for judgment, ensure that the response data is extracted correctly. You can use methods like regular expressions, XPath, CSS Selector, or JSON Path to extract response data.
- There is an error in the configuration of the test plan: Ensure that the configuration of the test plan is correct. For example, if you are using multiple thread groups, ensure that assertions are correctly applied to the requests of each thread group.
If none of the above methods are able to solve the issue, you can try opening JMeter’s log output to see if there are any error messages. You can also try using the Debug Sampler to check the execution results and response data of assertions in order to better troubleshoot the problem.
