added tests

test/completion/basic.py

@@ -1,3 +1,8 @@
+a1, b1 = (1, "")
+#? ['real']
+a1.real
+#? ['lower']
+a1.lower
 
 for a in [1,2]:
     #? ['real']
@@ -12,3 +17,11 @@ with open('') as f1, open('') as f2:
     f1.closed
     #? ['closed']
     f2.closed
+
+
+def global_define():
+    #global glob
+    glob = 3
+
+#? ['real']
+glob.real