Assertions are validation rules applied to test results that check how your target web service performs during a test run.
Now, we will create an assertion that will check that the average simulation time of a single test step does not exceed some time limit:
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Expand the test case and click the Response element of the test step you want to assert. The Request editor will be displayed.
Click the image to enlarge it.
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In the Assertions section of the Request inspector, click
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In the subsequent Add Assertion dialog, select the Time Taken statistics and the Median metric using drop-down lists:
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Configure other assertion parameters:
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In the Maximum edit box, enter the maximum time the test step execution can take on average.
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In the Tolerance section, set the maximum number of times the assertion should trigger before logging an error.
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Click OK. ReadyAPI will add the assertion to your load test.
Click the image to enlarge it.
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Run the test again. If the responses take too long, ReadyAPI will report errors. View the assertion errors in the Global Metrics graph and in the Test Step Metrics table:
