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lyx_mirror/development/TestsToDo
Scott Kostyshak 8f1f823351 Add Georg's idea for lyx2lyx tests to TestsToDo
These tests would be like the tex2lyx tests we have and would have
the clear advantage of not depending on LyX.
2015-11-01 20:06:04 -05:00

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This file describes tests that might be useful to implement.
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lyx2lyx tests
One way to implemente tests of lyx2lyx is to do a roundtrip lyx2lyx
conversion (e.g. with the previous major release format) and then compare the
exported .tex files before and after. Ideally there should be no change.
Georg detailed a clearly better idea, but would take more time to implement:
If you want to test lyx2lyx, then I would strongly advise to test lyx2lyx
alone, without LyX. This would be exactly the same procedure as we do with
tex2lyx: For each test case, keep the expected output of lyx2lyx as
reference, and verify once (when creating the test), that LyX will produce
the correct output. When testing, do only compare the lyx2lyx output against
the refernce. If you keep LyX (and even pdflatex) in the chain, then you
will be testing lyx2lyx, LyX and pdflatex at the same time, which will
increase the probability of failing tests, and the search for the cause will
be more difficult.
Finally I have a general remark: The forward conversion in lyx2lyx is much
more important than the backward conversion, and the only one we guarantee
to work for each format step. The backward conversion is only implemented
for those cases where it is possible with reasonable effort. If we start to
test lyx2lyx, then we should start with the forward conversion.
For (possibly) more discussion, see:
https://www.mail-archive.com/search?l=mid&q=n15uao%24upk%241%40ger.gmane.org
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