diff --git a/test/security_test.rb b/test/security_test.rb
index 472707ae..f5b9f78e 100755
--- a/test/security_test.rb
+++ b/test/security_test.rb
@@ -240,6 +240,15 @@ def enabled?
         expect(shadow_config).to receive(:save)
         Security.write_shadow_config
       end
+
+      it "doesn't allow empty value to enter into model for an attribute" do
+        Security.Settings["USERADD_CMD"] = ""
+
+        expect(shadow_config).not_to receive(:useradd_cmd=)
+        expect(shadow_config).to receive(:save)
+
+        Security.write_shadow_config
+      end
     end
 
     describe "#write_lsm_config" do