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Update gui section of idle test README.

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Terry Jan Reedy 2013-07-28 16:39:44 -04:00
parent a9d16c85d7
commit 015b4535c5
1 changed files with 12 additions and 4 deletions
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16
Lib/idlelib/idle_test/README.txt
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@ -40,13 +40,20 @@ master object either directly or indirectly by instantiating a tkinter or
idle class. For the benefit of buildbot machines that do not have a graphics idle class. For the benefit of buildbot machines that do not have a graphics
screen, gui tests must be 'guarded' by "requires('gui')" in a setUp screen, gui tests must be 'guarded' by "requires('gui')" in a setUp
function or method. This will typically be setUpClass. function or method. This will typically be setUpClass.
All gui objects must be destroyed by the end of the test, perhaps in a tearDown
function. Creating the Tk root directly in a setUp allows a reference to be saved
so it can be properly destroyed in the corresponding tearDown.
--- ---
@classmethod @classmethod
def setUpClass(cls): def setUpClass(cls):
requires('gui') requires('gui')
cls.root = tk.Tk()
@classmethod
def tearDownClass(cls):
cls.root.destroy()
--- ---
All gui objects must be destroyed by the end of the test, perhaps in a tearDown
function.
Support.requires('gui') returns true if it is either called in a main module Support.requires('gui') returns true if it is either called in a main module
(which never happens on buildbots) or if use_resources contains 'gui'. (which never happens on buildbots) or if use_resources contains 'gui'.
@ -56,8 +63,9 @@ template above.
Since non-gui tests always run, but gui tests only sometimes, tests of non-gui Since non-gui tests always run, but gui tests only sometimes, tests of non-gui
operations should best avoid needing a gui. Methods that make incidental use of operations should best avoid needing a gui. Methods that make incidental use of
tkinter variables and messageboxes can do this by using the mock classes in tkinter (tk) variables and messageboxes can do this by using the mock classes in
idle_test/mock_tk.py. idle_test/mock_tk.py. There is also a mock text that will handle some uses of the
tk Text widget.
3. Running Tests 3. Running Tests