From 20ffa14708e5e1b324ac954fd06a1415b9398b7c Mon Sep 17 00:00:00 2001
From: Chuck Atkins <chuck.atkins@kitware.com>
Date: Mon, 15 May 2017 18:05:17 +0000
Subject: Tests: Allow test macro to take no executable arguments

---
 Tests/CMakeLists.txt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 335267a..cbd7906 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -1,6 +1,9 @@
 # a macro for tests that have a simple format where the name matches the
 # directory and project
-macro(ADD_TEST_MACRO NAME COMMAND)
+macro(ADD_TEST_MACRO NAME)
+  if(${ARGC} GREATER 1)
+    set(_test_command --test-command ${ARGN})
+  endif()
   string(REPLACE "." "/" dir "${NAME}")
   string(REGEX REPLACE "[^.]*\\." "" proj "${NAME}")
   add_test(NAME "${NAME}" COMMAND "${CMAKE_CTEST_COMMAND}"
@@ -13,7 +16,8 @@ macro(ADD_TEST_MACRO NAME COMMAND)
     ${${NAME}_CTEST_OPTIONS}
     --build-options ${build_options}
     ${${NAME}_BUILD_OPTIONS}
-    --test-command ${COMMAND} ${ARGN})
+    ${_test_command})
+  unset(_test_command)
   list(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/${dir}")
 endmacro()
 
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