[qmtest] Questions [context scope, prerequisites enforcement]

[Stefan Seefeld]

Hi Mohamed,

Mohamed Barwani wrote:
> Hello there..
> 
> _1_
> Am trying to get my head around python.. Looking at the context variable 
> I can easily create new items it in a 'resource' object, but not in a 
> 'test' object.

All context variables live in the Context object, which is passed to 
Resource.SetUp() as well as Test.Run(), where you can access as well as 
modify them.

(see 
http://www.codesourcery.com/public/qmtest/qmtest-snapshot/share/doc/qmtest/html/tutorial/concepts-context.html 
)

> Scenario, test_b depends on test_a. test_a sets a context variable so 
> test_b can use. Can't seem to get this working? Am I missing something.

QMTest provides only a weak dependency between tests: By registering 
'prerequisite' tests you can instruct QMTest that a dependent test 
shouldn't be run if a prerequisite failed (for example). However, you 
can still invoke the dependent test only, and it will run happily even 
without the prerequisite test being executed first. This is a mere 
optimization that allows to skip tests if it is clear that they aren't 
even expected to pass if a prerequisite test failed, too.

(see 
http://www.codesourcery.com/public/qmtest/qmtest-snapshot/share/doc/qmtest/html/tutorial/concepts.html#concepts-tests)

For real dependencies you may use a Resource instead.

(see 
http://www.codesourcery.com/public/qmtest/qmtest-snapshot/share/doc/qmtest/html/tutorial/concepts.html#concepts-tests)

> _2_
> Does prerequisites get enforced at run time? i.e. test_b has a 
> prerequisite test_a. If you run test_b does test_a get run?

No. However, resources that a test depends on, will.

> Other than that.. well done!! QMTest seems like a great tool.

Thanks !

Regards,
		Stefan

-- 
Stefan Seefeld
CodeSourcery
stefan at codesourcery.com
(650) 331-3385 x718