Add Valgrind task to CMake

Author: gjtorikian

.travis.yml

@@ -19,4 +19,4 @@ before_install:
       && cd ..
       && rm gtest-1.7.0.zip
 
-script: mkdir build && cd build && cmake .. -Dtest=ON && make && test/runTests
+script: mkdir build && cd build && cmake .. -Dtest=ON && make && test/runTests && make memcheck

CMakeLists.txt

@@ -99,4 +99,12 @@ INSTALL(TARGETS graphqlparser
 
 IF (test)
   ADD_SUBDIRECTORY(test)
+
+  if(UNIX)
+    # setup valgrind
+    ADD_CUSTOM_TARGET(memcheck
+      valgrind --leak-check=full --dsymutil=yes --error-exitcode=1 ./test/runTests  >/dev/null
+    )
+  endif()
+
 ENDIF()