# Stopping a Test Run

When the harness is running tests, it enables both the button on the toolbar and the Stop menu item.

Either click the button or choose Run Tests `>` Stop to stop a test run.

As it completes each test, the harness writes the test results (`.jtr` files) in the work directory. Stopping a test run causes the tests in progress to indicate an error.

When you stop a test run, the harness does not generate reports of test results. You must generate the reports from the Test Manager window or from the command line. See Creating and Displaying Reports for detailed information about test reports.

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