Difference between revisions of "CddMeeting01712008"

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* Build releasable delivery on Windows
* Build releasable delivery on Windows
* Rebuilding manual test suite through extraction and synthesizing
* Rebuilding manual test suite through extraction and synthesizing
* Clean up config handling (add always tester target, remove "enabled" attribute)

Revision as of 11:02, 24 January 2008

CDD Meeting, Tuesday, 17.1.2008, 14:00

Next Meeting

  • Friday, 23.1.2008, 14:00



  • Forumulate Experiment Hypothesis (Andreas)
  • Fix AutoTest for courses
    • Integrate AUT_TEST_CASE into CDD_TEST_CASE hierarchy
    • New release
  • Break recursion in Erl-G lookup printer
  • Write documentation and videos tutorials (together with final release)
  • Find out why errors in test classes are no longer ignored


  • Remove cdd_enabled and capture/replay and add execute tag in config
  • Right click clears CDD log window
  • Add CDD IDE log entry when new test case is extracted
  • Implement "New Manual Test Case" Button
  • Better Icons for GUI (Arno)
  • Status bar
  • Grid items contain number of (failing) test routines
  • Dropping stone on filter text automatically sets a new filter text (e.g. drop stone for ROOT_CLASS and filter text will be covers.ROOT_CLASS, for class MY_TESTS new filter text will be name.MY_TESTS)
  • When test class gets removed manually, update test suite
  • Restore open nodes and selection after full updates (incr. works already)
  • Implement failure context window
    • Maybe also additional information such as previous outcomes?
  • Environment variable (or better user preference) for qualifying class names (to avoid svn conflicts)
  • TreeView
    • by Type, by Outcome, by Testcase (default), by Tested Class, by Tag; Implement via drop down box
  • Start background execution after extraction (even if user is still debugging)
  • Clean up test case in interpreter after each execution (through garbage collection?)
  • Port to 6.1 (right after Beta 1)
  • Build releasable delivery for Linux (after each Beta I guess...)

Bug Fixing

  • Extraction for infix and prefix features
  • Fix interpreter hang after runtime crash
  • Scrolling in CDD output window
  • Check why EiffelStudio quits after debugging a test routine and ignoring violations
  • Check if interpreter compilation errors are propagated correctly (seems to start interpreter even though compilation has failed)


  • Integrate variable declarations into AutoTest trunk (by 8.2.2008)


  • [DONE] Add filters and tags for extracted, manual tests and synthesized tests
  • [DONE] Look at/fix test case execution for agents
  • [DONE] In extracted test cases: break long manifest strings into smaller parts
  • [DONE] Extract STRINGs correctly
  • [DONE] While extracting test cases, flag objects that are target to a currently executing routine
  • [DONE] During setup check inv of all objects that are not flaged
  • [DONE] Automate CDD System level tests
  • [DONE] Add most important convenience routine to CDD_TEST_CASE (Stefan)
  • [DONE] Add info to indexing clause
    • "This class has been automatically created by CDD"
    • "Visit ... to learn more about extracted test cases"
    • Creation date
  • [DONE] Move logs below cdd_tests
  • Uniqe id to tag test cases with. To be used in logs. So test logs are resiliant to test class renamings
  • Logging
    • What data to log?
    • Implement storing
    • Define how students should submit logs
  • Data Gathering
    • Define what data to gather
    • Define how to process gather data
  • Second Chance re-run to find true prestate (with Jocelyn)
  • Allow for test case extraction of passing routine invocations (with Jocelyn)
  • Make popup on interpreter crash go away (win32 only)
  • Build releasable delivery on Windows
  • Rebuilding manual test suite through extraction and synthesizing
  • Clean up config handling (add always tester target, remove "enabled" attribute)


  • Define Project for SoftEng (due by next meeting)
    • Find System level test suite for us to test students code
    • Find project with pure functional part
  • Install CDD in student labs (Manu)
  • Devise questionnaires
    • Initial (due next meeting after Manu's vacation)
    • Midterm
    • Final
  • Analyze questionnaires
  • Rework example profiles
  • Assis will use CDD to get a feel for it and create a test suite for the students to start with


  • Disable GUI visibility when running tests in interpreter (background testing)
  • Display ignored test class compilation errors (looks like we will have this for free in 6.1)
  • Do not extract test case for C calls like {CLASS_WITH_EXTERNALS}.some_function
  • Errors in Testcases need to be displayed in the context window
  • Don't extract when failure is due to developer exception
  • Cache debug values when extracting several test cases
  • Find performance bottleneck of test case extraction and propose extraction method for second chance


  • Use ELBA

Software Engineering Project

  • One large project, but divided into testable subcomponents
  • Students required to write test cases
  • Fixed API to make things uniformly testable
  • Public/Secret test cases (similar to Zeller course)
  • Competitions:
    • Group A test cases applied to Group A project
    • Group A test cases applied to Groupt B project

Data to harvest

  • IDE Time with CDD(extraction) enabled / IDE Time with CDD(extraction) disabled
  • Test Case Source (just final version, or all versions?)
    • Use Profiler to get coverage approximation
  • TC Meta Data (with timestamps -> Evolution of Test Case)
    • TC Added/Removed/Changed
    • TC Outcome (transitions from FAIL/PASS/UNRESOLVED[bad_communication <-> does_not_compile <-> bad_input])
    • TC execution time
    • Modificiations to a testcase (compiler needs to recompile)
  • Development Session Data
    • IDE Startup
    • File save
  • Questionnairs
    • Initial
    • Final

Experiment Hypotheses

Use of CDD increases development productivity

  • Did the use of testing decrease development time?
  • Meassures:
    • Number of compilations
    • Number of saves
    • Number of revisions
    • IDE time
    • Asking the students

Emphasis on quetionnair result. Correlation with logs only if it makes sense

Use of CDD increases code correctness

  • Is there a relation between code correctness of project (vs. some system level test suite) and test activity?
  • Measures:
    • number of tests
    • number of times test were run
    • Number of pass/fail, fail/pass transitions, (also consider unresolved/* transitions ?)
    • Secret test suite

Developer Profile: Is there a correlation between Developer Profile and the way they use testing tools

  • How did students use the testing tools?
  • Are ther clusters of similar use?
  • What is charactersitic for these clusters?
  • Meassures:
    • Aksing students before and after
    • Are there projects where tests initially always fail resp. pass
    • How often do they test?
    • How correct is their project?

Midterm questionnaire will be used to phrase questions for final questionnaire.

Example profiles

  • Waldundwiesen Hacker
    • No explicit structure. Does whatever seems appriorate at the time. No QA plan.
  • Agile
    • Processes interleave. Conscionsness for QA. Maybe even Test First or TDD.
  • Waterfall inspired
    • Explicit process model. Phases don't interleave.
  •  ?

How do extracted, synthesized and manually written test cases compare?

  • Which tests are the most useful to students?
  • How many tests are there in each category?
  • What's the test suite quality of each category?
  • Were some excluded from testing more often than others?
  • How many red/green and green/red transitions are there in each category?
  • Which had compile-time errors most often that did not get fixed?
  • Meassures:
    • LOC
    • Number of tests
    • Number of executions
    • Outcome transitions