[WIP] Add packaging tests

Signed-off-by: Cristian Le <cristian.le@mpsd.mpg.de>

Author: LecrisUT

test-suite/CMakeLists.txt

@@ -130,3 +130,5 @@ endforeach ()
 add_subdirectory(tests)
 ## Add functional tests
 add_subdirectory(libv2-demo)
+## Add packaging tests
+add_subdirectory(package)

test-suite/package/CMakeLists.txt

@@ -0,0 +1,15 @@
+set_property(DIRECTORY APPEND
+		PROPERTY LABELS package
+)
+
+set(test_list
+		FetchContent
+		find_package
+)
+if (NOT Wannier90_IS_TOP_LEVEL)
+	list(APPEND test_list pkg-config)
+endif ()
+
+foreach (test IN LISTS test_list)
+	Wannier90_add_test(${test} TEST_NAME test-${test})
+endforeach ()

test-suite/package/FetchContent/CMakeLists.txt

@@ -0,0 +1,39 @@
+cmake_minimum_required(VERSION 3.25...3.29)
+project(example_Wannier90 LANGUAGES Fortran)
+
+
+include(FetchContent)
+
+if (DEFINED ENV{PACKIT_SOURCE_URL})
+	set(git_repo $ENV{PACKIT_SOURCE_URL})
+else ()
+	set(git_repo https://github.com/wannier-developers/wannier90)
+endif ()
+if (DEFINED ENV{PACKIT_SOURCE_SHA})
+	set(git_tag $ENV{PACKIT_SOURCE_SHA})
+elseif (DEFINED ENV{PACKIT_COMMIT_SHA})
+	set(git_tag $ENV{PACKIT_COMMIT_SHA})
+else ()
+	set(git_tag develop)
+endif ()
+
+FetchContent_Declare(Wannier90
+		GIT_REPOSITORY ${git_repo}
+		GIT_TAG ${git_tag}
+)
+FetchContent_MakeAvailable(Wannier90)
+
+add_executable(main src/main.F90)
+target_link_libraries(main PRIVATE Wannier90::wannier90)
+
+enable_testing()
+
+add_test(NAME smoke_test_lib
+		COMMAND $<TARGET_FILE:main>
+)
+add_test(NAME smoke_test_exe
+		COMMAND $<TARGET_FILE:Wannier90::exe> --version
+)
+add_test(NAME smoke_test_post
+		COMMAND $<TARGET_FILE:Wannier90::post> --version
+)

test-suite/package/FetchContent/src

@@ -0,0 +1 @@
+../src/

test-suite/package/find_package/CMakeLists.txt

@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.25...3.29)
+project(example_Wannier90 LANGUAGES Fortran)
+
+find_package(Wannier90 REQUIRED)
+
+add_executable(main src/main.F90)
+target_link_libraries(main PRIVATE Wannier90::wannier90)
+
+enable_testing()
+
+add_test(NAME smoke_test_lib
+		COMMAND $<TARGET_FILE:main>
+)
+add_test(NAME smoke_test_exe
+		COMMAND $<TARGET_FILE:Wannier90::exe> --version
+)
+add_test(NAME smoke_test_post
+		COMMAND $<TARGET_FILE:Wannier90::post> --version
+)

test-suite/package/find_package/src

@@ -0,0 +1 @@
+../src/

test-suite/package/pkg-config/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.25...3.29)
+project(example_Wannier90 LANGUAGES Fortran)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(Wannier90 REQUIRED IMPORTED_TARGET wannier90)
+
+add_executable(main src/main.F90)
+target_link_libraries(main PRIVATE PkgConfig::Wannier90)
+
+enable_testing()
+
+add_test(NAME smoke_test_lib
+		COMMAND $<TARGET_FILE:main>
+)

test-suite/package/pkg-config/src

@@ -0,0 +1 @@
+../src/

test-suite/package/src/main.F90

@@ -0,0 +1,6 @@
+program wannier90_example
+  use w90_library
+  implicit none
+
+  ! TODO: Implement basic smoke test
+end program wannier90_example