[kepler-dev] [Bug 4549] New: - String Replace actor "remembers" previous execution values

[bugzilla-daemon at ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=4549

           Summary: String Replace actor "remembers" previous execution
                    values
           Product: Kepler
           Version: 1.x dev
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: actors
        AssignedTo: berkley at nceas.ucsb.edu
        ReportedBy: soong at nceas.ucsb.edu
         QAContact: kepler-dev at kepler-project.org


1. Build a workflow with an SDF director (set iterations to 1), an RExpression
(turn off graphics output), and a Display actor.  Hook the RExpression
graphicsFileName port to the Display input port.
2. Run this workflow.  There should be no noticeable output, as no token was
passed to the Display actor.  An Rplots.pdf file should have been generated in
the appropriate subfolder of .kepler.
3. Add a String Replace actor.  Hook the RExpression graphicsFileName port to
the String Replace stringToEdit port, and hook the String Replace output port
to the Display input port.
4. Run this workflow.  Notice now that a Display actor window opens.  A blank
token of some sort was passed to the Display actor (I it's a "" string token). 
Again, another Rplots.pdf file should have been generated.
5. Turn on graphics output in the RExpression and run the workflow.  The
expected RExpression-1.png file should have been generated, and the Display
actor should open and display the filename.  Pay attention to the timestamp on
the folder.
6. Turn off graphics output in the RExpression and run the workflow.  The
Display actor should open again and display the png filename from the previous
execution.  If you browse the .kepler, you should see the correct folder with
the expected Rplots.pdf file.