Size Assertion

Part of the Assertions category. Also documented in context in the full Component Reference.

The Size Assertion tests that each response contains the right number of bytes in it. You can specify that the size be equal to, greater than, less than, or not equal to a given number of bytes.

Note

An empty response is treated as being 0 bytes rather than reported as an error.

Name	Required	Description
Name	No	Descriptive name for this element that is shown in the tree.
Apply to:	Yes	This is for use with samplers that can generate sub-samples, e.g. HTTP Sampler with embedded resources, Mail Reader or samples generated by the Transaction Controller. - Main sample only - assertion only applies to the main sample - Sub-samples only - assertion only applies to the sub-samples - Main sample and sub-samples - assertion applies to both. - JMeter Variable Name to use - assertion is to be applied to the contents of the named variable
Size in bytes	Yes	The number of bytes to use in testing the size of the response (or value of the JMeter variable).
Type of Comparison	Yes	Whether to test that the response is equal to, greater than, less than, or not equal to, the number of bytes specified.

Related

• Assertions & SLA Validation
• Full Component Reference
• Functions and Variables