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add CMake check that will refuse compilation of unit tests or skip tests 

This is mainly because the default compilers on RHEL/CentOS 7.x are
not sufficient to compile googletest. Also some Fortran module test
requires a working F90 module and others are more recent Fortran compiler.
This commit is contained in:
Axel Kohlmeyer 2022-10-17 17:53:04 -04:00
parent 3a8abecd68
commit d8ab00ea78
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GPG Key ID: D9B44E93BF0C375A
3 changed files with 29 additions and 4 deletions
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10
doc/src/Build_development.rst
View File

@ -147,6 +147,16 @@ compile and will download and compile a specific recent version of the
`Googletest <https://github.com/google/googletest/>`_ C++ test framework
for implementing the tests.
.. admonition:: Software version requirements for testing
:class: note
The compiler and library version requirements for the testing
framework are more strict than for the main part of LAMMPS. For
example the default GNU C++ and Fortran compilers of RHEL/CentOS 7.x
(version 4.8.x) are not sufficient. The CMake configuration will try
to detect compatible versions and either skip incompatible tests or
stop with an error.
After compilation is complete, the unit testing is started in the build
folder using the ``ctest`` command, which is part of the CMake software.
The output of this command will be looking something like this::

6
unittest/CMakeLists.txt
View File

@ -4,6 +4,12 @@
# Created by Axel Kohlmeyer and Richard Berger
########################################
# download and build googletest framework
# cannot compile googletest anymore with the default GCC on RHEL 7.x
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0))
message(FATAL_ERROR "Need GNU C++ compiler version 6.x or later for unit testing")
endif()
message(STATUS "Downloading and building googletest framework")
set(GTEST_URL "https://github.com/google/googletest/archive/release-1.12.1.tar.gz" CACHE STRING "URL of googletest source")
set(GTEST_MD5 "e82199374acdfda3f425331028eb4e2a" CACHE STRING "MD5 sum for googletest source")

17
unittest/fortran/CMakeLists.txt
View File

@ -14,6 +14,11 @@ if(CMAKE_Fortran_COMPILER)
message(STATUS "Skipping Tests for the LAMMPS Fortran Module: cannot identify Fortran compiler")
return()
endif()
# GNU Fortran 4.8.x on RHEL/CentOS 7.x is not sufficient to compile the Fortran module
if((CMAKE_Fortran_COMPILER_ID STREQUAL "GNU") AND (CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 6.0))
message(FATAL_ERROR "Need GNU Fortran compiler version 6.x or later for unit testing")
endif()
get_filename_component(LAMMPS_FORTRAN_MODULE ${LAMMPS_SOURCE_DIR}/../fortran/lammps.f90 ABSOLUTE)
if(BUILD_MPI)
find_package(MPI REQUIRED)
@ -32,10 +37,14 @@ if(CMAKE_Fortran_COMPILER)
add_library(flammps STATIC ${LAMMPS_FORTRAN_MODULE} keepstuff.f90)
add_executable(test_fortran_create wrap_create.cpp test_fortran_create.f90)
target_link_libraries(test_fortran_create PRIVATE flammps lammps MPI::MPI_Fortran GTest::GTestMain)
target_include_directories(test_fortran_create PRIVATE "${LAMMPS_SOURCE_DIR}/../fortran")
add_test(NAME FortranOpen COMMAND test_fortran_create)
if(MPI_Fortran_HAVE_F90_MODULE)
add_executable(test_fortran_create wrap_create.cpp test_fortran_create.f90)
target_link_libraries(test_fortran_create PRIVATE flammps lammps MPI::MPI_Fortran GTest::GTestMain)
target_include_directories(test_fortran_create PRIVATE "${LAMMPS_SOURCE_DIR}/../fortran")
add_test(NAME FortranOpen COMMAND test_fortran_create)
else()
message(STATUS "Skipping FortranOpen test since no working F90 MPI module was found")
endif()
add_executable(test_fortran_commands wrap_commands.cpp test_fortran_commands.f90)
target_link_libraries(test_fortran_commands PRIVATE flammps lammps MPI::MPI_Fortran GTest::GTestMain)