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Making a GUI Test-first

Making a GUI Test-first. 9/30/04 Testing 2. Testing a GUI. Need to simulate mouse clicks, key presses, human uncertainty GUIs subject to change rapidly Potentially difficult to isolate GUI problems from logic problems. TDD’ing a GUI. Separate presentation layer from logic layer

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Making a GUI Test-first

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  1. Making a GUI Test-first 9/30/04 Testing 2

  2. Testing a GUI • Need to simulate mouse clicks, key presses, human uncertainty • GUIs subject to change rapidly • Potentially difficult to isolate GUI problems from logic problems

  3. TDD’ing a GUI • Separate presentation layer from logic layer • Use interfaces to allow using mock objects • Start GUI early in project with basic functionality • Decide basic look & layout controls without functionality • Begin making tests • Control existence/enabling • Functionality (simple calls into layer)

  4. Brute Force • Create getters/setters for each control • Each test method gets access to the controls it needs and manipulates it • Do this all manually for every control and control interaction

  5. JFCUnit • Open-source package for testing Java GUIs • Two classes • JFCTestCase • JFCTestHelper • Helper class has ability to find controls by name or type • jfcunit.sourceforge.net • Astels’ example uses deprecated method calls (use website examples) • Eclipse plug-in doesn’t seem to work with v3.0

  6. Jemmy • Originally developed for NetBeans, now usable as stand-alone • Uses Operators to wrap controls • http://jemmy.netbeans.org

  7. Abbot • Recorder • Again, couldn’t find sign of abbot plugin in Eclipse 3.0 • http://abbot.sourceforge.net

  8. Ultra-Thin GUI • Create GUI which is just view into data • Use mocks for view to create logic layer • Use mocks for GUI to create presentation layer

  9. See also • http://c2.com/cgi/wiki?JavaGuiUnitTesting

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