diff --git a/tests/treble_sepolicy_tests.py b/tests/treble_sepolicy_tests.py
index 2f9e994..cfa8ef9 100644
--- a/tests/treble_sepolicy_tests.py
+++ b/tests/treble_sepolicy_tests.py
@@ -71,6 +71,7 @@
 coredomains = set()
 appdomains = set()
 vendordomains = set()
+pol = None
 
 # compat vars
 alltypes = set()
@@ -287,6 +288,12 @@
     ret += TestViolatorAttribute("vendor_executes_system_violators")
     return ret
 
+# TODO move this to sepolicy_tests
+def TestCoreDataTypeViolations():
+    global pol
+    return pol.AssertPathTypesDoNotHaveAttr(["/data/vendor/", "/data/vendor_ce/",
+        "/data/vendor_de/"], [], "core_data_file_type")
+
 ###
 # extend OptionParser to allow the same option flag to be used multiple times.
 # This is used to allow multiple file_contexts files and tests to be
@@ -305,6 +312,7 @@
             Option.take_action(self, action, dest, opt, value, values, parser)
 
 Tests = {"CoredomainViolations": TestCoredomainViolations,
+         "CoreDatatypeViolations": TestCoreDataTypeViolations,
          "TrebleCompatMapping": TestTrebleCompatMapping,
          "ViolatorAttributes": TestViolatorAttributes}