[vtk-developers] Single test file used for more than one test?

[Cory Quammen]

Burlen,

Thanks for the pointer. I like that your example is explicit in what
is being passed to the tests.

To use the more "magic" vtk_add_test_cxx() function, it turns out you
can do the following:

set(vtk_test_prefix Second)
vtk_add_test_cxx(${vtk-module}CxxTests tests
  SurfacePlusEdges.cxx --arg1 --arg2 --arg3
)
unset(vtk_test_prefix)

And this will define a test named $(vtk-module}Cxx-SecondSurfacePlusEdges.

In it's current form, this test will point to a baseline named
SurfacePlusEdges.png. To point it to a baseline for just this test, I
had to modify vtkTestingMacros.cmake to include vtk_test_prefix in the
baseline path. The modifications are on gerrit:

http://review.source.kitware.com/#/t/4648/

This specifies the baseline file name as SecondSurfacePlusEdges.png.

Reviews for this topic are appreciated :-)

I'm not sure if I'm thrilled with defining the test name this way. It
would be nicer to do something like

vtk_add_test_cxx(${vtk-module}CxxTests tests
  SurfacePlusEdges.cxx --arg0 --arg1 --arg2
  SurfacePlusEdges.cxx,CUSTOM_NAME SurfacePlusEdges2 --arg3 --arg4 --arg5
)

where if CUSTOM_NAME is specified, the first argument is the test name.

Thanks,
Cory

On Thu, Sep 11, 2014 at 11:22 AM, Burlen Loring <burlen.loring at gmail.com> wrote:
> Hi Cory,
>
> That's how the surface LIC tests are written. Take a look at
> VTK/Rendering/LIC/Testing/Cxx/CMakeLists.txt
>
> Burlen
>
>
> On 09/11/2014 08:07 AM, Cory Quammen wrote:
>>
>> Hi all,
>>
>> I'm writing a VTK test that takes some command-line arguments to
>> control some options in a filter. What I would like to do is define
>> several tests in the CMakeLists.txt file that run this same code but
>> which pass different arguments in through argv[].
>>
>> I haven't found an example of this kind of test in VTK. Most tests are
>> defined by passing to vtk_add_test_cxx the name of the source file for
>> the test.
>>
>> Can anyone point me to an example similar to what I want to do?
>>
>> Thanks!
>> Cory
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