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[Martin Sandve Alnæs <martinal@xxxxxxxxx>]

1) sudo apt-get install python-nose

2) write files called "test_*.py"

3) implement functions "def test_*(): ..." in "test_*.py", use
"assert" to check things

4) run "nosetests", and all tests are discovered

You can also make packages called "test_*/" to have hierarchies of tests,
with no extra lines for non-test code. The command nosetests can aid in
some things like profiling and code coverage, but I've only just looked at
it briefly. I particularly like test generators:

def check_stuff(i, j):
    assert i + j > 2

def test_stuff():
    for i in range(10):
        for j in range(10):
            yield check_stuff, i, j

Which makes a range of tests calling check_stuff with different arguments.
The above test gives 6 errors like these:

martinal@martinal-xps:~/dev/fenics/ufl/test/newtests/test_exprbasics$ nosetests
FFF.......FF........F...............................................................................
======================================================================
FAIL: test_exprbasics.test_foo.test_stuff(0, 0)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/nose/case.py", line 182, in runTest
    self.test(*self.arg)
  File "/home/martinal/dev/fenics/ufl/test/newtests/test_exprbasics/test_foo.py",
line 3, in check_stuff
    assert i + j > 2
AssertionError

======================================================================
FAIL: test_exprbasics.test_foo.test_stuff(0, 1)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/nose/case.py", line 182, in runTest
    self.test(*self.arg)
  File "/home/martinal/dev/fenics/ufl/test/newtests/test_exprbasics/test_foo.py",
line 3, in check_stuff
    assert i + j > 2
AssertionError

...


Martin



On Wed, Jun 17, 2009 at 10:00 AM, Kristian
Oelgaard<k.b.oelgaard@xxxxxxxxxx> wrote:
> Quoting Anders Logg <logg@xxxxxxxxx>:
>
>> On Tue, Jun 16, 2009 at 03:33:15PM +0200, UFL wrote:
>> > One or more new changesets pushed to the primary ufl repository.
>> > A short summary of the last three changesets is included below.
>> >
>> > changeset:   907:fe4e462aea075c22f750f0becf9733d5cf695ebe
>> > tag:         tip
>> > parent:      906:e7bd26c2c52c50e49a7d7b7fc2b3f3f56decbd27
>> > parent:      905:114de4a60b04da8323be66bc11827e9b90a24b1e
>> > user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
>> > date:        Tue Jun 16 15:33:14 2009 +0200
>> > files:
>> > description:
>> > merge
>> >
>> >
>> > changeset:   906:e7bd26c2c52c50e49a7d7b7fc2b3f3f56decbd27
>> > parent:      904:d6d428a9474cff080ebeb2cd94a325351540dd1f
>> > user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
>> > date:        Tue Jun 16 15:32:52 2009 +0200
>> > files:       test/newtests/test_analysis/__init__.py
>> test/newtests/test_compounds/__init__.py test/newtests/test_demos/__init__.py
>> test/newtests/test_derivatives/__init__.py
>> test/newtests/test_elements/__init__.py
>> test/newtests/test_elements/test_cells.py
>> test/newtests/test_elements/test_elements.py
>> test/newtests/test_evaluation/__init__.py
>> test/newtests/test_exprbasics/__init__.py
>> test/newtests/test_indexing/__init__.py
>> > description:
>> > Added new test directory, planning to migrate to nose based unit tests.
>>
>> What is a nose based unit test?
>
> 'nose' is an extension of unittest and it's supposed to be easier to use.
>
> http://code.google.com/p/python-nose/
>
> Kristian
>
>
>> --
>> Anders
>>
>
>
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