fixed a small bug for checking double local var declaration

Environment.py

@@ -51,14 +51,15 @@ class Env:
             return self.parentEnv.getNode(name, namespace)
         raise Exception("ERROR: Can't find definition of {} in the Environment".format(name))
 
-    # A wrapper around getNode to find if node exists in environment already 
+    # A wrapper around getNode to find if node exists in environment already. Terminates before reaching the global Env (see compEnv implementation)
     def findNode(self, name, namespace):
-        try: 
-            self.getNode(name, namespace) 
-        except:
-            return False # node is not found in environment 
-        
-        return True 
+        key = (name, namespace)
+        if key in self.map:
+            return True
+        elif self.parentEnv:
+            return self.parentEnv.findNode(name, namespace)
+        return False
+
 
 
 ###################################
@@ -124,7 +125,7 @@ class GlobalEnv(Env):
                 return self.map.get(name)
             elif (i+name) in self.map:
                 return self.map.get(i+name)
-
+            
         raise Exception("ERROR: Can't find definition of {} in the Environment".format(key))
 
     # method for getting all the nodes under a package (import All)
@@ -149,4 +150,11 @@ class CompEnv(Env):
             return self.map.get(key)
         elif self.parentEnv: # globalEnv
             return self.parentEnv.getNode(key, self.imported, self.packageName)
-        raise Exception("ERROR: Can't find definition of {} in the Environment".format(name))
\ No newline at end of file
+        raise Exception("ERROR: Can't find definition of {} in the Environment".format(name))
+    
+    def findNode(self, name, namespace):
+        key = (name, namespace)
+        if key in self.map:
+            return True
+        else:
+            return False
\ No newline at end of file

Test.py

@@ -69,6 +69,8 @@ def run(testFiles):
 
     for f in testFiles:
         # print(f)
+        if f.split("/")[-1] == ".DS_Store":
+            continue
         content = open(f, "r").read()
 
         # Scanning