Feature/unit tests for chgres_cube.fd/utils.f90

CMakeLists.txt

@@ -22,6 +22,8 @@ if(NOT CMAKE_BUILD_TYPE MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)$")
       CACHE STRING "Choose the type of build." FORCE)
   set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
                                                "MinSizeRel" "RelWithDebInfo")
+  message(STATUS "Set BUILD_TESTING to YES and build unit testing package under tests")
+  set(BUILD_TESTING "YES")
 endif()
 
 # Set compiler flags.
@@ -72,6 +74,12 @@ endif()
 
 add_subdirectory(sorc)
 
+# Run unit tests.
+include(CTest)
+if(BUILD_TESTING)
+  add_subdirectory(unit-tests)
+endif()
+
 # If doxygen documentation we enabled, build it.
 if(ENABLE_DOCS)
   find_package(Doxygen REQUIRED)

unit-tests/CMakeLists.txt

@@ -0,0 +1,34 @@
+set(fortran_src
+    ../sorc/chgres_cube.fd/utils.f90
+    to_upper_lower.F90)
+
+if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -convert big_endian -assume byterecl")
+elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -ffree-line-length-0 -fdefault-real-8 -fconvert=big-endian")
+endif()
+
+include_directories(
+      ${PROJECT_SOURCE_DIR}
+)
+
+set(exe_name to_upper_lower)
+add_executable(${exe_name} ${fortran_src})
+target_link_libraries(
+  ${exe_name}
+  nemsio::nemsio
+  sfcio::sfcio
+  sigio::sigio
+  bacio::bacio_4
+  sp::sp_d
+  w3nco::w3nco_d
+  esmf
+  wgrib2::wgrib2_lib
+  wgrib2::wgrib2_api
+  MPI::MPI_Fortran
+  NetCDF::NetCDF_Fortran)
+if(OpenMP_Fortran_FOUND)
+  target_link_libraries(${exe_name} OpenMP::OpenMP_Fortran)
+endif()
+
+install(TARGETS ${exe_name} RUNTIME DESTINATION ${exec_dir})

unit-tests/to_upper_lower.F90

@@ -0,0 +1,48 @@
+!> @file
+
+!> output
+!!
+!! Unit test for to_upper() and to_lower() functions under UFS_UTILS package
+!! exit code other than zero identify issue found
+!!
+
+program to_upper_lower
+
+
+ implicit none
+
+ logical                          :: match_result
+
+ character(len=12)                :: test_input_char_1, test_input_char_2, u_st_base, l_st_base
+
+ u_st_base="STAGGERLOCCE"
+ l_st_base="staggerlocce"
+ test_input_char_1="sTAGGErLOCCE"
+ test_input_char_2="staGGErLOCCE"
+
+ print*, "-------- Starting Unit Testing to_upper_lower  ----------"
+ print*, "------------ Testing to_lower and to_upper --------------"
+
+!-------------------------------------------------------------------------
+! Execute testing below by running target function with testing string 
+!   When match_result set to be T - compare to base line is identical
+!   When match_result set to be F - compare to base line is NOT identical
+!-------------------------------------------------------------------------
+
+ call to_lower(test_input_char_1) 
+ match_result = test_input_char_1 == l_st_base
+
+ call to_upper(test_input_char_2)
+ match_result = test_input_char_2 == u_st_base
+
+!-------------------------------------------------------------------------
+! Display final result
+!-------------------------------------------------------------------------
+
+ if (.not.match_result) then
+   stop 'unit_test to_lower and to_upper failed'
+ else
+   print*, "Pass"
+ endif
+
+end program