added tests

test/completion/classes.py

@@ -0,0 +1,18 @@
+
+class TestClass(object):
+    var_class = TestClass()
+
+    def __init__(self2, a):
+        self2.var_inst = a
+
+
+
+inst = TestClass(1)
+
+#? ['var_class', 'var_inst']
+inst.var
+
+#? ['var_class']
+TestClass.var_class
+
+