A test suite is run by using the test case player markup. This markup allows you to specify which test case you want to run. The test case player can be used in the following way.
%%TestCasePlayer @uses: demo %
renders as:
The annotation uses specifies the package, where the test cases are defined.
Clicking the green arrows allows to run the test-case line until the respective line. The success of the test in each line is shown by color highlighting of the check cell (green: passed; red: failed). With the red button on top the test execution can be reset to restart testing from scratch.