Build all tests with CMake

[rodsan0]

And eventually, it will be possible to build everything with CMake!

• [x] fix two bugs in tests
• [x] make travis (github actions?) actually run cmake for tests
• [x] break up tests into subcomponents (uitsl, uit, netuit)
• [x] implement debug, fulldebug, opt
• [ ] add a section to the docs about how to run tests (in particular, running them individually)
• [x] (possibly) implement code coverage
• [x] add cmake script to parse MPI nproc + tags for tests

[mmore500]

I added the flags we need for coverage to the cmakelists.txt

set(CMAKE_CXX_FLAGS_COVERAGE "-std=c++17 -pipe -pthread -march=native -g -Wall -Wno-unused-function -I$(TO_ROOT)/coverage_include/ -I$(TO_ROOT)/third-party/ -DEMP_TRACK_MEM -DUITSL_AUDIT_OCCUPANCY -Wnon-virtual-dtor -Wcast-align -Woverloaded-virtual -ftemplate-backtrace-limit=0 -fprofile-instr-generate -fcoverage-mapping -fno-inline -fno-elide-constructors -O0")

In order to get the coverage working, we just need to run the tests with these options in multiproc

    # see https://clang.llvm.org/docs/UsersManual.html#profiling-with-instrumentation
    for n in $$(seq 2 3); do \
        export n; \
        $(UIT_MPIEXEC) --bind-to none $$($(UIT_MPIEXEC) --version | grep -q "OpenRTE" && echo "--oversubscribe") -n $$n \
            /bin/bash -c '\
                LLVM_PROFILE_FILE="%p-%m-%h-$${n}-$${OMPI_COMM_WORLD_RANK}.profraw" \
                ./$@.out' \
            || exit 1; \
    done
    llvm-profdata merge *.profraw -o default.profdata
    llvm-cov show ./$@.out -instr-profile=default.profdata > coverage_$@.txt
    python $(TO_ROOT)/third-party/force-cover/fix_coverage.py coverage_$@.txt

like this for uniproc

    echo "UIT_MPICXX" $(UIT_MPICXX)
    echo "UIT_MPIEXEC" $(UIT_MPIEXEC)
    # see https://clang.llvm.org/docs/UsersManual.html#profiling-with-instrumentation
    $(UIT_MPIEXEC) --bind-to none -n 1 \
        /bin/bash -c '\
            LLVM_PROFILE_FILE="%p-%m-%h-$${n}-$${OMPI_COMM_WORLD_RANK}.profraw" \
            ./$@.out' \
            || exit 1
    llvm-profdata merge *.profraw -o default.profdata
    llvm-cov show ./$@.out -instr-profile=default.profdata > coverage_$@.txt
    python $(TO_ROOT)/third-party/force-cover/fix_coverage.py coverage_$@.txt

and like this for multithread

    export OMPI_CXX=clang++ && $(UIT_MPICXX) $(FLAGS) $< -lbenchmark -lmetis -lpthread -lstdc++fs -lz -o $@.out
    # execute test
    echo "UIT_MPICXX" $(UIT_MPICXX)
    echo "UIT_MPIEXEC" $(UIT_MPIEXEC)
    # see https://clang.llvm.org/docs/UsersManual.html#profiling-with-instrumentation
    for n in $$(seq 2 3); do \
        $(UIT_MPIEXEC) -n 1 ./$@.out --num_threads $$n || exit 1; \
    done
    llvm-profdata merge *.profraw -o default.profdata
    llvm-cov show ./$@.out -instr-profile=default.profdata > coverage_$@.txt
    python $(TO_ROOT)/third-party/force-cover/fix_coverage.py coverage_$@.txt

[codecov[bot]]

Codecov Report

Merging #123 (8785bdd) into master (3a90980) will decrease coverage by 21.61%. The diff coverage is 68.54%.

@@             Coverage Diff             @@
##           master     #123       +/-   ##
===========================================
- Coverage   67.54%   45.92%   -21.62%     
===========================================
  Files         387      213      -174     
  Lines       12134     5696     -6438     
===========================================
- Hits         8196     2616     -5580     
+ Misses       3938     3080      -858     

Impacted Files	Coverage Δ
include/netuit/arrange/EmptyTopologyFactory.hpp	30.00% <ø> (ø)
include/netuit/assign/AssignRandomly.hpp	100.00% <ø> (ø)
include/netuit/assign/GenerateMetisAssignments.hpp	89.74% <0.00%> (-10.26%)	:arrow_down:
include/netuit/mesh/MeshNode.hpp	86.36% <ø> (-5.31%)	:arrow_down:
include/netuit/mesh/MeshNodeInput.hpp	100.00% <ø> (ø)
include/netuit/mesh/MeshNodeOutput.hpp	100.00% <ø> (ø)
include/netuit/topology/TopoNode.hpp	19.35% <0.00%> (+1.61%)	:arrow_up:
include/netuit/topology/Topology.hpp	65.00% <ø> (+2.42%)	:arrow_up:
include/uit/ducts/Duct.hpp	36.76% <0.00%> (-29.91%)	:arrow_down:
...ntra/accumulating+type=any/a::AccumulatingDuct.hpp	0.00% <ø> (-65.00%)	:arrow_down:
... and 392 more

---

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[mmore500]

This looks like it will pass imminently! Merging it in now so that (fingers crossed) there will be a built container in the morning I can work with