relocate variable and function validator

httprunner/validator.py

@@ -1,4 +1,5 @@
 # encoding: utf-8
+import types
 
 """ validate data format
 TODO: refactor with JSON schema validate
@@ -43,3 +44,35 @@ def is_testcases(data_structure):
             return False
 
     return True
+
+
+###############################################################################
+##   validate varibles and functions
+###############################################################################
+
+
+def is_function(tup):
+    """ Takes (name, object) tuple, returns True if it is a function.
+    """
+    name, item = tup
+    return isinstance(item, types.FunctionType)
+
+
+def is_variable(tup):
+    """ Takes (name, object) tuple, returns True if it is a variable.
+    """
+    name, item = tup
+    if callable(item):
+        # function or class
+        return False
+
+    if isinstance(item, types.ModuleType):
+        # imported module
+        return False
+
+    if name.startswith("_"):
+        # private property
+        return False
+
+    return True
+