fix: build on Visual Studio

EmperorYP7 · EmperorYP7 · commit 7c5d5e48e829 · 2021-04-22T16:55:00.000+05:30
Signed-off-by: Yash Pandey (YP) &lt;yash.btech.cs19@iiitranchi.ac.in&gt;
diff --git a/test/test_enforcer_synced.cpp b/test/test_enforcer_synced.cpp
@@ -8,6 +8,9 @@
 using namespace std;
 
 namespace test_enforcer_synced {
+
+    using namespace casbin;
+
     TEST_CLASS(TestEnforcerSynced){
     public:
 
