digraph Simple {
    graph [goal="Run tests and report results"]
    rankdir=LR

    start [shape=Mdiamond, label="Start"]
    exit  [shape=Msquare, label="Exit"]

    run_tests [label="Run Tests", prompt="Run the test suite and report results"]
    report    [label="Report", prompt="Summarize the test results"]

    start -> run_tests -> report -> exit
}