add tests for Ubuntu 19.04

[BenjaminRodenberg]

One of the biggest advantages of Ubuntu 19.04 is that we can use pip provided via apt. pip of Ubuntu 18.04 or older is not working with the python bindings. See here. Therefore, we should also consider testing Ubuntu 19.04.

ToDo

• This PR should only be merged after remove old python bindings #123 has been merged.
• Fix tests. See here

[BenjaminRodenberg]

In the current version, I commented out the tests, since I got an mpi error otherwise:

Step 15/20 : RUN cd /home/precice/precice-build && make test_base  # Tests do not work due to error: See ...
 ---> Running in bdeaeae26f0a
-- Found Git: /usr/bin/git (found version "2.20.1") 
-- Revision status: v1.6.1-55-ge802b75b
[  0%] Built target GitRevision
[ 63%] Built target precice
[100%] Built target testprecice
Scanning dependencies of target test_base
UpdateCTestConfiguration  from :/home/precice/precice-build/DartConfiguration.tcl
UpdateCTestConfiguration  from :/home/precice/precice-build/DartConfiguration.tcl
Test project /home/precice/precice-build
Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
test 1
    Start 1: precice.Base

1: Test command: /usr/bin/mpiexec "-n" "4" "/home/precice/precice-build/testprecice" "--run_test=!@MPI_Ports:!MappingTests/PetRadialBasisFunctionMapping/Parallel/*"
1: Environment variables: 
1:  PRECICE_ROOT=/home/precice/precice
1: Test timeout computed to be: 180
1: --------------------------------------------------------------------------
1: There are not enough slots available in the system to satisfy the 4 slots
1: that were requested by the application:
1:   /home/precice/precice-build/testprecice
1: 
1: Either request fewer slots for your application, or make more slots available
1: for use.
1: --------------------------------------------------------------------------
1/1 Test #1: precice.Base .....................***Failed    0.03 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) =   0.03 sec

The following tests FAILED:
	  1 - precice.Base (Failed)
Errors while running CTest
make[3]: *** [CMakeFiles/test_base.dir/build.make:57: CMakeFiles/test_base] Error 8
make[2]: *** [CMakeFiles/Makefile2:248: CMakeFiles/test_base.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:255: CMakeFiles/test_base.dir/rule] Error 2
make: *** [Makefile:262: test_base] Error 2

[MakisH]

Keep in mind that 19.04 reaches its end-of-life in January 2020. I would suggest that you directly use Ubuntu 19.10 (which also "expires" in July 2020). Ubuntu 20.04 LTS is expected to be released on late April.

[BenjaminRodenberg]

Keep in mind that 19.04 reaches its end-of-life in January 2020. I would suggest that you directly use Ubuntu 19.10 (which also "expires" in July 2020). Ubuntu 20.04 LTS is expected to be released on late April.

Using Ubuntu 19.04 is clearly a workaround until the next LTS is released. The nice thing about Ubuntu 19.04 is that we can install pip3 via apt install python3-pip and get a compatible version (pip3 --version is 18.01). Like explained in #96 (comment) pip3 from apt install python3-pip is not sufficient (pip3 --version is 9.0.1).

Adding a test makes sure that the pip3 provided via apt will be sufficient in the future or we at least get a failure, if we unintentionally break compatibility again.

[MakisH]

Keep in mind that 19.04 reaches its end-of-life in January 2020. I would suggest that you directly use Ubuntu 19.10 (which also "expires" in July 2020). Ubuntu 20.04 LTS is expected to be released on late April.

Using Ubuntu 19.04 is clearly a workaround until the next LTS is released.

Then this test will just break between January and end of April, as Ubuntu 19.04 will not be able to download packages.

[BenjaminRodenberg]

Keep in mind that 19.04 reaches its end-of-life in January 2020. I would suggest that you directly use Ubuntu 19.10 (which also "expires" in July 2020). Ubuntu 20.04 LTS is expected to be released on late April.

Using Ubuntu 19.04 is clearly a workaround until the next LTS is released.

Then this test will just break between January and end of April, as Ubuntu 19.04 will not be able to download packages.

Then should we use Ubuntu 19.10 instead and as soon as Ubuntu 20.04 is there, upgrade the test? I really would like to have at least one test, where pip is installed via apt.

[MakisH]

Then should we use Ubuntu 19.10 instead and as soon as Ubuntu 20.04 is there, upgrade the test? I really would like to have at least one test, where pip is installed via apt.

Yes.

[fsimonis]

Can't you simply upgrade pip as a user?

pip3 install --user --upgrade pip

[MakisH]

@BenjaminRueth Shouldn't we close this as deprecated? In any case, upgrading pip as a user is our recommended practice.