Make ecm_setup_version interact well with CMP0048

When CMake policy CMP0048 (CMake 3.0) is set to NEW, the project()
command is meant to manage the project's version variables. We therefore
do not set the PROJECT_VERSION variables in this case.

To make sure projects do not have to specify their version in multiple
places, this also allows the keyword "PROJECT" to be passed to
ecm_setup_version instead of an actual version number. In this case, the
version passed to project() will be used.

REVIEW: 117619

1 files changed, 39 insertions, 0 deletions

diff --git a/tests/ECMSetupVersionTest/CMakeLists.txt b/tests/ECMSetupVersionTest/CMakeLists.txt
new file mode 100644
index 00000000..2e7decfb
--- /dev/null
+++ b/tests/ECMSetupVersionTest/CMakeLists.txt
@@ -0,0 +1,39 @@
+macro(add_version_test NAME COMMAND)
+  string(REPLACE "." "/" dir "${NAME}")
+  string(REGEX REPLACE "[^.]*\\." "" proj "${NAME}")
+  add_test(ecm_setup_version-${NAME} ${CMAKE_CTEST_COMMAND}
+    --build-and-test
+    "${CMAKE_CURRENT_SOURCE_DIR}/${dir}"
+    "${CMAKE_CURRENT_BINARY_DIR}/${dir}"
+    --build-two-config
+    --build-generator ${CMAKE_GENERATOR}
+    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
+    --build-project ${proj}
+    ${${NAME}_EXTRA_OPTIONS}
+    --test-command ${COMMAND} ${ARGN})
+endmacro()
+
+add_version_test(old_simple dummy)
+add_version_test(old_soversion dummy)
+add_version_test(old_version_file dummy)
+add_version_test(old_version_file_abspath dummy)
+add_version_test(old_header check_header)
+add_version_test(old_header_abspath check_header)
+
+if(CMAKE_MAJOR_VERSION GREATER 2)
+    add_version_test(new_explicit_header check_header)
+    add_version_test(new_explicit_header_abspath check_header)
+    add_version_test(new_explicit_simple dummy)
+    add_version_test(new_explicit_soversion dummy)
+    add_version_test(new_explicit_version_file dummy)
+    add_version_test(new_explicit_version_file_abspath dummy)
+    add_version_test(new_project_header check_header)
+    add_version_test(new_project_header_abspath check_header)
+    add_version_test(new_project_header_prefix check_header)
+    add_version_test(new_project_simple dummy)
+    add_version_test(new_project_simple_prefix dummy)
+    add_version_test(new_project_soversion dummy)
+    add_version_test(new_project_soversion_prefix dummy)
+    add_version_test(new_project_version_file dummy)
+    add_version_test(new_project_version_file_abspath dummy)
+endif()