Add unit tests for the Hines solver.

See also #826, as some of these tests do not seem to pass at -O0 using
NVHPC 22.5.

Author: olupton

tests/CMakeLists.txt

@@ -31,6 +31,7 @@ if(Boost_FOUND)
     add_subdirectory(unit/interleave_info)
     add_subdirectory(unit/alignment)
     add_subdirectory(unit/queueing)
+    add_subdirectory(unit/solver)
     # lfp test uses nrnmpi_* wrappers but does not load the dynamic MPI library TODO: re-enable
     # after NEURON and CoreNEURON dynamic MPI are merged
     if(NOT CORENRN_ENABLE_MPI_DYNAMIC)

tests/unit/solver/CMakeLists.txt

@@ -0,0 +1,20 @@
+# =============================================================================
+# Copyright (C) 2022 Blue Brain Project
+#
+# See top-level LICENSE file for details.
+# =============================================================================
+
+include_directories(${CMAKE_SOURCE_DIR}/coreneuron ${Boost_INCLUDE_DIRS})
+add_executable(test-solver test_solver.cpp)
+target_link_libraries(test-solver ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY} coreneuron
+                      ${corenrn_mech_library})
+target_include_directories(test-solver SYSTEM
+                           PRIVATE ${CORENEURON_PROJECT_SOURCE_DIR}/external/CLI11/include)
+
+# Tell CMake *not* to run an explicit device code linker step (which will produce errors); let the
+# NVHPC C++ compiler handle this implicitly.
+set_target_properties(test-solver PROPERTIES CUDA_RESOLVE_DEVICE_SYMBOLS OFF)
+target_compile_options(test-solver PRIVATE ${CORENEURON_BOOST_UNIT_TEST_COMPILE_FLAGS})
+add_dependencies(test-solver nrniv-core)
+add_test(NAME test-solver COMMAND $<TARGET_FILE:test-solver>)
+cpp_cc_configure_sanitizers(TARGET test-solver TEST test-solver)