Share testing library for all project

git-svn-id: svn://db.shs.com.ru/pip@873 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

CMakeLists.txt

@@ -19,6 +19,7 @@ option(INTROSPECTION "Build with introspection" OFF)
 option(LIB "System install" ON)
 option(STATIC_LIB OFF)
 option(DEBUG "Build with -g3" OFF)
+option(TESTS "Build tests and perform their before install step" OFF)
 set(PIP_UTILS 1)
 if(LIBPROJECT)
 	set(PIP_UTILS ${UTILS})
@@ -221,6 +222,10 @@ else()
 	message(STATUS "Building PIP release version")
 endif()
 
+if (TESTS)
+	include(DownloadGTest.cmake)
+	option(CONCURRENT_TESTS "Enable tests for concurrent library" ON)
+endif()
 
 # Check if std::iostream operators support
 if(STD_IOSTREAM)
@@ -487,7 +492,7 @@ if (NOT PIP_FREERTOS)
 	list(APPEND PIP_LIBS_TARGETS pip_concurrent)
 
 	# Enable build tests for concurrent module
-	if(CONCURRENT_TESTING)
+	if(CONCURRENT_TESTS)
 		add_subdirectory(src_concurrent/test)
 	endif()