Tests: Refactor contract test activation

Use separate `CMake_TEST_CONTRACT_<project>` variables for each test.
Make the set of possible tests match what is in the source tree.

Tests/CMakeLists.txt

@@ -3388,31 +3388,30 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
   set_property(TEST CMakeWizardTest PROPERTY PASS_REGULAR_EXPRESSION
     "The \"cmake -i\" wizard mode is no longer supported.")
 
-  # If the cache variable CMAKE_CONTRACT_PROJECTS is set
-  # then the dashboard will run a contract with CMake test of that
-  # name.  For example CMAKE_CONTRACT_PROJECTS = vtk542 would run
-  # the vtk542 contract test.
-  # For each Contract test, the project should provide a directory
-  # with at least one CMakeLists.txt file that uses ExternalProject
-  # to download and configure the project. The directory should also
-  # contain a RunTest.cmake file that has a single set of the format:
-  # set(project_RUN_TEST testToRun)
-  # The testToRun should be a test executable that can be run to
-  # smoke test the build.
-  foreach(project ${CMAKE_CONTRACT_PROJECTS})
-    include(Contracts/${project}/RunTest.cmake)
-    ADD_TEST_MACRO(Contracts.${project}
-      ${${project}_RUN_TEST})
-    # Contract test timeout in seconds.
-    # Default to 6 hours.
-    if(DEFINED ${project}_TEST_TIMEOUT)
-      set(timeout ${${project}_TEST_TIMEOUT})
-    elseif(CMAKE_CONTRACT_TEST_TIMEOUT_DEFAULT)
-      set(timeout ${CMAKE_CONTRACT_TEST_TIMEOUT_DEFAULT})
-    else()
-      set(timeout 21600)
+  # Define a set of "contract" tests, each activated by a cache entry
+  # named "CMake_TEST_CONTRACT_<project>".  For each Contract test,
+  # the project should provide a directory with a CMakeLists.txt file
+  # that uses ExternalProject to download and configure the project.
+  # The directory should also contain a Configure.cmake file that
+  # sets "CMake_TEST_CONTRACT_<project>_<var>" variables to configure
+  # the code below.
+  foreach(project
+      Trilinos
+      VTK
+      )
+    if(CMake_TEST_CONTRACT_${project})
+      include(Contracts/${project}/Configure.cmake)
+      ADD_TEST_MACRO(Contracts.${project} ${CMake_TEST_CONTRACT_${project}_RUN_TEST})
+      # The external projects may take a long time to build.
+      if(DEFINED CMake_TEST_CONTRACT_${project}_TIMEOUT)
+        set(timeout ${CMake_TEST_CONTRACT_${project}_TIMEOUT})
+      elseif(CMake_TEST_CONTRACT_DEFAULT_TIMEOUT)
+        set(timeout ${CMake_TEST_CONTRACT_DEFAULT_TIMEOUT})
+      else()
+        set(timeout 21600)
+      endif()
+      set_property(TEST Contracts.${project} PROPERTY TIMEOUT "${timeout}")
     endif()
-    set_tests_properties(Contracts.${project} PROPERTIES TIMEOUT ${timeout})
   endforeach()
 
   if(TEST_CompileCommandOutput)

Tests/Contracts/Trilinos/Configure.cmake

@@ -4,4 +4,4 @@ set(dir "${CMAKE_CURRENT_BINARY_DIR}/Contracts/${project}")
 set(exe "${CMAKE_COMMAND}")
 set(args -P "${dir}/ValidateBuild.cmake")
 
-set(Trilinos_RUN_TEST ${exe} ${args})
+set(CMake_TEST_CONTRACT_Trilinos_RUN_TEST ${exe} ${args})

Tests/Contracts/VTK/Configure.cmake

@@ -1,3 +1,3 @@
 set(exe "$ENV{HOME}/.cmake/Contracts/VTK/VTK-build/bin/vtkCommonCoreCxxTests")
 set(args otherArrays)
-set(VTK_RUN_TEST ${exe} ${args})
+set(CMake_TEST_CONTRACT_VTK_RUN_TEST ${exe} ${args})