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Add description for starting python tests in gdb

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Matthias Kuhn 2017-01-20 12:23:23 +01:00
parent 45f4a3e8b7
commit 85146ca4be
1 changed files with 27 additions and 0 deletions
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tests/README.md
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@ -90,3 +90,30 @@ WCS testing information can be found in:
About benchmark tests you can read:
${TOP_SRCDIR}/tests/bench/README
# Run python tests in GDB
First find out the required environment variables by running the test outside
the debugger.
ctest -V -R ProcessingQgisAlgorithmsTest
Which prints for somewhere in the initialization code something like:
export LD_LIBRARY_PATH=NOTFOUND:/home/m-kuhn/dev/cpp/qgis/build-qt5/output/lib:
export PYTHONPATH=/home/m-kuhn/dev/cpp/qgis/build-qt5/output/python/:/home/m-kuhn/dev/cpp/qgis/build-qt5/output/python/plugins:/home/m-kuhn/dev/cpp/qgis/QGIS/tests/src/python:
First, run these two commands in the terminal.
On the following line it says something like:
-- Running /usr/bin/python3 /home/m-kuhn/dev/cpp/qgis/QGIS/python/plugins/processing/tests/QgisAlgorithmsTest.py
Which you can run in gdb with:
gdb -ex r --args /usr/bin/python3 /home/m-kuhn/dev/cpp/qgis/QGIS/python/plugins/processing/tests/QgisAlgorithmsTest.py
Now you can start using the usual gdb (`bt` etc.) interface or - if you have
installed the [appropriate debug tools (adjust for python3!)](https://wiki.python.org/moin/DebuggingWithGdb)
even allows doing python introspection (`py-bt`).