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Tests: Extend BuildDepends test to cover OBJECT_DEPENDS

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The actual file timestamp dependency is known to not work on
Visual Studio or Xcode generators.  Tolerate such failure for
these generators (Tests/CustomCommand already covers using
OBJECT_DEPENDS to pull a custom command into a target, and
that still works with these generators).
This commit is contained in:
Brad King 2015-07-22 11:15:20 -04:00
parent e00e8713de
commit 783c375766
4 changed files with 39 additions and 0 deletions
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19
Tests/BuildDepends/CMakeLists.txt
View File

@ -69,6 +69,9 @@ file(WRITE ${BuildDepends_BINARY_DIR}/Project/link_depends_no_shared_exe.h
"#define link_depends_no_shared_exe_value 0\n")
set(link_depends_no_shared_check_txt ${BuildDepends_BINARY_DIR}/Project/link_depends_no_shared_check.txt)
file(WRITE ${BuildDepends_BINARY_DIR}/Project/object_depends.txt "0\n")
set(object_depends_check_txt ${BuildDepends_BINARY_DIR}/Project/object_depends_check.txt)
file(WRITE ${BuildDepends_BINARY_DIR}/Project/external.in "external original\n")
file(WRITE ${BuildDepends_BINARY_DIR}/Project/multi1-in.txt "multi1-in original\n")
file(WRITE ${BuildDepends_BINARY_DIR}/Project/multi2-stamp.txt "multi2-stamp original\n")
@ -246,6 +249,8 @@ file(WRITE ${BuildDepends_BINARY_DIR}/Project/zot_macro_tgt.hxx
file(WRITE ${BuildDepends_BINARY_DIR}/Project/link_depends_no_shared_lib.h
"#define link_depends_no_shared_lib_value 0\n")
file(WRITE ${BuildDepends_BINARY_DIR}/Project/object_depends.txt "1\n")
if(TEST_LINK_DEPENDS)
file(WRITE ${TEST_LINK_DEPENDS} "2")
endif()
@ -359,6 +364,20 @@ else()
"Targets link_depends_no_shared_lib and link_depends_no_shared_exe not both built.")
endif()
if(EXISTS "${object_depends_check_txt}")
file(STRINGS "${object_depends_check_txt}" object_depends_check LIMIT_COUNT 1)
if("${object_depends_check}" STREQUAL "1")
message(STATUS "object_depends exe is newer than object_depends.txt as expected.")
elseif(CMAKE_GENERATOR MATCHES "Visual Studio|Xcode")
message(STATUS "Known limitation: OBJECT_DEPENDS does not work on ${CMAKE_GENERATOR}")
else()
message(SEND_ERROR "Project did not rebuild properly: object_depends exe is not newer than object_depends.txt.")
endif()
else()
message(SEND_ERROR "Project did not rebuild properly. "
"object_depends exe and object_depends.txt are not both present.")
endif()
if(EXISTS ${BuildDepends_BINARY_DIR}/Project/external.out)
file(STRINGS ${BuildDepends_BINARY_DIR}/Project/external.out external_out)
if("${external_out}" STREQUAL "external changed")

12
Tests/BuildDepends/Project/CMakeLists.txt
View File

@ -182,3 +182,15 @@ if(TEST_MULTI3)
set_property(SOURCE multi3-real.txt multi3-dummy.txt PROPERTY SYMBOLIC 1)
add_custom_target(multi3 ALL DEPENDS multi3-real.txt)
endif()
add_executable(object_depends object_depends.cxx)
set_property(SOURCE object_depends.cxx PROPERTY OBJECT_DEPENDS
${CMAKE_CURRENT_BINARY_DIR}/object_depends.txt)
add_custom_target(object_depends_check ALL
COMMAND ${CMAKE_COMMAND}
-Dexe=$<TARGET_FILE:object_depends>
-Dout=${CMAKE_CURRENT_BINARY_DIR}/object_depends_check.txt
-Dtxt=${CMAKE_CURRENT_BINARY_DIR}/object_depends.txt
-P ${CMAKE_CURRENT_SOURCE_DIR}/object_depends_check.cmake
)
add_dependencies(object_depends_check object_depends)

1
Tests/BuildDepends/Project/object_depends.cxx Normal file
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@ -0,0 +1 @@
int main() { return 0; }

7
Tests/BuildDepends/Project/object_depends_check.cmake Normal file
View File

@ -0,0 +1,7 @@
if(NOT EXISTS "${txt}" OR NOT EXISTS "${exe}")
file(REMOVE "${out}")
elseif("${exe}" IS_NEWER_THAN "${txt}")
file(WRITE "${out}" "1\n")
else()
file(WRITE "${out}" "0\n")
endif()