[CMake] Can't run units test defined in subdirectories

[Tron Thomas]

I am trying to use CMake to configure a project on Mac OS X that  
contains different subdirectories where various libraries and such are  
built.  These subdirectories will also contain unit tests for the  
built components.  In the root CMakeLists.txt file, I have defined a  
macro that will help set up the unit tests when I call this macro in  
the sub directories.  This is the basics of how the macro works:

macro(AddTestApplication Name)
	# Generate test application information here ...

	add_executable(${Name} ${ARGN})
	get_target_property(TestCommand ${Name} LOCATION)
	add_test(${Name} ${TestCommand})
endmacro(AddTestApplication)

When I include the macro in the subdirectory, the test application  
gets built.  When I try to run the RUN_TESTS target in the project, I  
get error output like:

Start processing tests
Test project /Projects/MyProject/build
   1/  1 Testing TestLibrary                    Could not find  
executable /Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Looked in the following places:
/Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
/Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
/Projects/MyProject/build/$(CONFIGURATION)/Debug/TestLibrary
/Projects/MyProject/build/$(CONFIGURATION)/Debug/TestLibrary
Debug//Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Debug//Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Projects/MyProject/build/$(CONFIGURATION)/Debug/TestLibrary
Projects/MyProject/build/$(CONFIGURATION)/Debug/TestLibrary
Debug/Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Debug/Projects/MyProject/build/$(CONFIGURATION)/TestLibrary
Unable to find executable: /Projects/MyProject/build/$(CONFIGURATION)/ 
TestLibrary

0% tests passed, 1 tests failed out of 1

The following tests FAILED:
	  1 - TestLibrary (Not Run)
Errors while running CTest
make: *** [RUN_TESTS_buildpart_0] Error 8

For some reason CTest is not performing any substitution for $ 
(CONFIGURATION).  If it were, the first location it tried would have  
succeeded in finding the test exectuable
What is needed so that the test application can run successfully?