diff --git a/src/plugins/tools/netx/testdata/hlp3.oas b/src/plugins/tools/netx/testdata/hlp3.oas
new file mode 100644
index 000000000..765d95764
Binary files /dev/null and b/src/plugins/tools/netx/testdata/hlp3.oas differ
diff --git a/src/plugins/tools/netx/unit_tests/dbHierProcessorTests.cc b/src/plugins/tools/netx/unit_tests/dbHierProcessorTests.cc
index 69780916d..0ba47241e 100644
--- a/src/plugins/tools/netx/unit_tests/dbHierProcessorTests.cc
+++ b/src/plugins/tools/netx/unit_tests/dbHierProcessorTests.cc
@@ -120,3 +120,13 @@ TEST(BasicNot2)
 {
   run_test_bool (_this, "hlp2.oas", TMNot, 101);
 }
+
+TEST(BasicAnd3)
+{
+  run_test_bool (_this, "hlp3.oas", TMAnd, 100);
+}
+
+TEST(BasicNot3)
+{
+  run_test_bool (_this, "hlp3.oas", TMNot, 101);
+}