TPT User's Guide - PikeTec

TPT User's Guide Page 79
Activates/Deactivates displaying the “breakpoints overview” window.
As soon as the test execution has been stopped, either by reaching a breakpoint or by using the
“pause” function, the debugger highlights all active states of the selected automaton in red. If
one changes the selected state or automaton the highlighting is refreshed according to the
new context. This makes it possible to inspect the executed states of all sub- automatons.
Knowing about these highlight markings it is now possible to explain the “step over” function
in more detail. As can be read in the table presented above, it “continues a stopped test until
the active state changes”. It remains open which active state of the overall automaton is meant.
After all, in most large automatons at almost every point of their runtime many states are
executed and are thus active. Knowing about the highlight markings described above it is now
possible to give a simple and retraceable answer:
The step over function refers to the active states of the automaton which at the moment of triggering
this function is selected and displayed. Using it, the paused execution will be continued until a state
transition takes place.
The slide control controls the execution speed from left (slow) to right (fast).
If the execution speed is set to the maximum, updating the displayed runtime data (channels and
variables) is reduced. Consequently signal values being viewed at execution time are no longer updated
despite the debugging.
Setting the slide control to the maximum speed thus only makes sense if the aim is to reach an
advanced point of the test execution in the shortest amount of time possible, avoiding parts of
the test which are not interesting for debugging purposes.
14.3.4 The “channel watch” window
Information about the internal states of the corresponding automaton are collected during the
entire execution and displayed in this window. Among them are the time that has passed in the
executing automaton (global time) as well as the current values of each channel and variable of
the automaton. Moreover, these values are displayed in diagrams at the right-hand side of the
table. To display a signal in the viewer, select it from the table and drag it onto one of the
displayed viewers or use “add signal” in the context menu.
14.3.5 The “breakpoints overview” window
The “breakpoints overview” window contains a table view which lists all breakpoints of the
recently executed automaton. During a test execution all breakpoints are depicted in grey.
Only when the ongoing execution is stopped by one or more breakpoints, the breakpoints that
caused the test execution to stop are depicted in black and are moved to the top of the table.
A breakpoint definition location can be displayed by double-clicking on its row in the table.