diff --git a/public/domain.te b/public/domain.te
index c0c6699..d0310d3 100644
--- a/public/domain.te
+++ b/public/domain.te
@@ -639,22 +639,6 @@
 neverallow vndservicemanager binder_device:chr_file no_rw_file_perms;
 neverallow vndservicemanager hwbinder_device:chr_file no_rw_file_perms;
 
-# system services cant add vendor services
-neverallow {
-  coredomain
-} vendor_service:service_manager add;
-
-full_treble_only(`
-  # vendor services cant add system services
-  neverallow {
-    domain
-    -coredomain
-  } {
-    service_manager_type
-    -vendor_service
-  }:service_manager add;
-')
-
 full_treble_only(`
   # Vendor apps are permited to use only stable public services. If they were to use arbitrary
   # services which can change any time framework/core is updated, breakage is likely.
diff --git a/tests/Android.bp b/tests/Android.bp
index 8ca952d..e271346 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -43,6 +43,11 @@
     srcs: [
         "treble_sepolicy_tests.py",
     ],
+    version: {
+        py3: {
+            embedded_launcher: true,
+        },
+    },
     libs: [
         "mini_cil_parser",
         "pysepolwrap",
@@ -55,6 +60,11 @@
     srcs: [
         "sepolicy_tests.py",
     ],
+    version: {
+        py3: {
+            embedded_launcher: true,
+        },
+    },
     libs: ["pysepolwrap"],
     data: [":libsepolwrap"],
 }
diff --git a/tests/sepolicy_tests.py b/tests/sepolicy_tests.py
index e940681..63144dd 100644
--- a/tests/sepolicy_tests.py
+++ b/tests/sepolicy_tests.py
@@ -15,9 +15,12 @@
 from optparse import OptionParser
 from optparse import Option, OptionValueError
 import os
+import pkgutil
 import policy
 import re
+import shutil
 import sys
+import tempfile
 
 SHARED_LIB_EXTENSION = '.dylib' if sys.platform == 'darwin' else '.so'
 
@@ -146,7 +149,11 @@
     "TestDmaHeapDevTypeViolations",
 ]
 
-if __name__ == '__main__':
+def do_main(libpath):
+    """
+    Args:
+        libpath: string, path to libsepolwrap.so
+    """
     usage = "sepolicy_tests -f vendor_file_contexts -f "
     usage +="plat_file_contexts -p policy [--test test] [--help]"
     parser = OptionParser(option_class=MultipleOption, usage=usage)
@@ -158,11 +165,6 @@
 
     (options, args) = parser.parse_args()
 
-    libpath = os.path.join(os.path.dirname(os.path.realpath(__file__)),
-                           "libsepolwrap" + SHARED_LIB_EXTENSION)
-    if not os.path.exists(libpath):
-        sys.exit("Error: libsepolwrap does not exist. Is this binary corrupted?\n")
-
     if not options.policy:
         sys.exit("Must specify monolithic policy file\n" + parser.usage)
     if not os.path.exists(options.policy):
@@ -207,3 +209,17 @@
 
     if len(results) > 0:
         sys.exit(results)
+
+if __name__ == '__main__':
+    temp_dir = tempfile.mkdtemp()
+    try:
+        libname = "libsepolwrap" + SHARED_LIB_EXTENSION
+        libpath = os.path.join(temp_dir, libname)
+        with open(libpath, "wb") as f:
+            blob = pkgutil.get_data("sepolicy_tests", libname)
+            if not blob:
+                sys.exit("Error: libsepolwrap does not exist. Is this binary corrupted?\n")
+            f.write(blob)
+        do_main(libpath)
+    finally:
+        shutil.rmtree(temp_dir)
diff --git a/tests/treble_sepolicy_tests.py b/tests/treble_sepolicy_tests.py
index 64a9e95..b49f138 100644
--- a/tests/treble_sepolicy_tests.py
+++ b/tests/treble_sepolicy_tests.py
@@ -16,10 +16,13 @@
 from optparse import Option, OptionValueError
 import os
 import mini_parser
+import pkgutil
 import policy
 from policy import MatchPathPrefix
 import re
+import shutil
 import sys
+import tempfile
 
 DEBUG=False
 SHARED_LIB_EXTENSION = '.dylib' if sys.platform == 'darwin' else '.so'
@@ -341,7 +344,13 @@
          "TrebleCompatMapping": TestTrebleCompatMapping,
          "ViolatorAttributes": TestViolatorAttributes}
 
-if __name__ == '__main__':
+def do_main(libpath):
+    """
+    Args:
+        libpath: string, path to libsepolwrap.so
+    """
+    global pol, FakeTreble
+
     usage = "treble_sepolicy_tests "
     usage += "-f nonplat_file_contexts -f plat_file_contexts "
     usage += "-p curr_policy -b base_policy -o old_policy "
@@ -374,11 +383,6 @@
             sys.exit("Error: File_contexts file " + f + " does not exist\n" +
                     parser.usage)
 
-    libpath = os.path.join(os.path.dirname(os.path.realpath(__file__)),
-                           "libsepolwrap" + SHARED_LIB_EXTENSION)
-    if not os.path.exists(libpath):
-        sys.exit("Error: libsepolwrap does not exist. Is this binary corrupted?\n")
-
     # Mapping files and public platform policy are only necessary for the
     # TrebleCompatMapping test.
     if options.tests is None or options.tests == "TrebleCompatMapping":
@@ -428,3 +432,17 @@
 
     if len(results) > 0:
         sys.exit(results)
+
+if __name__ == '__main__':
+    temp_dir = tempfile.mkdtemp()
+    try:
+        libname = "libsepolwrap" + SHARED_LIB_EXTENSION
+        libpath = os.path.join(temp_dir, libname)
+        with open(libpath, "wb") as f:
+            blob = pkgutil.get_data("treble_sepolicy_tests", libname)
+            if not blob:
+                sys.exit("Error: libsepolwrap does not exist. Is this binary corrupted?\n")
+            f.write(blob)
+        do_main(libpath)
+    finally:
+        shutil.rmtree(temp_dir)