cstester - a tool for testing loading and painting of documents

[Ganesh Paramasivam]

Just a thought ( If this tool development is still in a early phase ).

Wouldn't this be easier with PDF instead of JPG. PDF ( If I'm right )
is nothing but a description of the layout data and handling PDF is
more programming friendly ( i.e there are enough libraries available
to read PDF ) than JPG's.

Regards,
Ganesh

On Tue, Jan 18, 2011 at 6:37 PM, Thorsten Zachmann <t.zachmann at zagge.de> wrote:
> Hello all,
>
> I'm currently working as part of my job for Nokia on cstester a tool to test
> loading and painting for stage, tables and words. The aim of the tool is to
> make sure there are no regressions added when features are modified. This is
> done by loading the document and comparing some pre generated images of the
> content with created images of the content. Also a good code coverage should
> be possible to reach by using this method it uses a lot of code when doing
> that.
>
> The idea is to create a document set which contains features and test these
> documents on a regularly basis.
>
> There are still some open questions:
> - Most important one is how to make sure font rendering is always the same.
> One idea here is to create a virtual image that can be used to run the tests.
> - What is the best way to store the test set and images used for testing
> Should we create a new repository where the documents are stored.
> - How to automatically run the tests to find regressions.
>
> I will shortly commit the branch cstester-zachmann
>
> How does it work
>
> Creating the images used for verifying
>
> cstester --create test.odp
>
> will create the test images used for comparison. One needs to make sure the
> images are as they are expected to be. The images to check will be created in
> the directory test.odp.check so you need write access to the directory the file
> is in.
>
> Verifying that still all works fine
>
> cstester --verify test.odp
>
> This will load the document and create images of the content and then verify
> them against the images saved in test.odp.check
>
> It is possible to run the tool on multiple files at once by specifying muliple
> files on the command line
>
> cstester --create test1.odp test2.odp test3.ods test3.xls
>
> Currently it has support for documents which are supported by stage and
> tables. words is going to follow. Other document types should be easy to add.
>
> I also have plans for the future to extend the tool by:
> - adding a save / load circle to test that all is saved and loaded correctly
> and we don't have any data loss there.
> - adding odf verification for the saved data
>
> Also we are working inside Nokia on a set of documents that can be used for
> this kind of testing. This documents will then be available for the community.
>
> Thorsten
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