[Jython-dev] build.xml's handling of /Lib/test/output and generating test output

[Updike, C. <Cla...@jh...>]

Oti-

On 5/31 you committed build.xml 1.48.  There was a section
that was as follows:

  <!-- Copy stuff under Lib/test so an overwrite is forced.
       This should make jython tests overwrite cpython tests
       of the same name. -->
   <copy todir=3D"${distDir}/Lib/test" overwrite=3D"true">
       <fileset dir=3D"${sourceDir}/Lib/test" includes=3D"**"/>
   </copy> =20

Which you changed to:

  <!-- The jython .py modules: important to overwrite the above CPython
.py files -->
  <echo>copy the jython *.py modules from ${sourceDir}/Lib</echo>
  <copy todir=3D"${distDir}/Lib" preservelastmodified=3D"true"
overwrite=3D"true">
     <fileset dir=3D"${sourceDir}/Lib" includes=3D"**/*.py" />
  </copy>

One of the things the original did was copy the files in
/Lib/test/output into the dist directory.  AFAICT, this
was needed to get regrtest.py to use the expected/generated=20
output from under the /Lib/test/output (more on this below). =20
Without this, there is no generated output for the jython tests.

So either I'm running the tests incorrectly, or the copy
needs to be widened to include jython/Lib/test/output.

To help decide which, here's how I was getting the jython tests=20
to pass by matching the generated output, prior to the build.xml
change that broke it.  It's odd:

1. Get the unit test working passing (no failures, ingoring=20
   mismatched output for now).
2. run: jython regrtest.py -g <the test> to generate the output
3. Copy the generated output from $dist/Lib/test/output back up
   to jython/Lib/test/output (seems strange, but the -g option
   dumps it to the dist dir).  If you don't do this step, the
   stale generated output from jython/Lib/test/output kept
   getting used for the comparision.

Doing it this way seemed weird, but it was the only way to:

1. Get the jython only test set to work, via:
     jython regrtest.py=20
2. Get the jython + cpython combined test set to work, via:
     jython regrtest.py -a
3. Keep them working after running a build.

If nobody knows a better way to get the test output to
match, then the build should copy the generated output
to the dist dir (and we'll have to copy it from the=20
dist dir to jython/Lib/test/output after it is first
generated).  Hopefully I'm doing it wrong and it make=20
more sense than this.

Thanks,
Clark