setup to use regex for adding module to test's cmake file.

otto.sh

@@ -31,7 +31,10 @@ add_module_to_cmakes () {
     local basename="$1"
     
     echo "add_subdirectory(${basename})" >> ./src/CMakeLists.txt
-    echo "add_subdirectory(${basename})" >> ./tests/CMakeLists.txt
+    
+    # Tests cmake file needs to be edited in place.
+    sed "s/# TEST_DIRS.*$/# TEST_DIRS\radd_subdirectory(${basename})\r/g" ./tests/CMakeLists.txt > ./tests/CMakeLists.txt    
+    sed "s/# TEST_LINKS.*$/# TEST_LINKS\r${basename}/g" ./tests/CMakeLists.txt > ./tests/CMakeLists.txt
 }
 
 remove_module_from_cmakes () {