diff --git a/plugin/test_py_example.py b/plugin/test_py_example.py
new file mode 100644
index 0000000..18c2e3b
--- /dev/null
+++ b/plugin/test_py_example.py
@@ -0,0 +1,42 @@
+import os
+
+
+class Foo(object):
+    """Some doc"""
+    CLASS_ATTR = {"dict": 1,
+                  "bla": "foobar"}
+
+    def __init__(self, arg):
+        """initializaion"""
+        self.arg = arg
+
+    def method(self, x, y):
+        """very important method"""
+
+        def inner_funtion(x, y):
+            for i in y:
+                x = x + i
+
+            result = y[:]
+            result.append(x)
+            return result
+
+        result = None
+        result2 = """\
+multiline
+string
+the
+annoying
+bastard"""
+
+        if self.arg < 100:
+            result = inner_funtion(x, y)
+
+        return result if result else result2
+
+def main():
+    instance = Foo(10)
+    print(os.path.curdir, instance.method(2, [1, 2, 3]))
+
+if __name__ == "__main__":
+    main()
diff --git a/plugin/test_pythonhelper.py b/plugin/test_pythonhelper.py
new file mode 100755
index 0000000..a32c4c4
--- /dev/null
+++ b/plugin/test_pythonhelper.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import unittest
+import sys
+
+
+class Command(object):
+    def __call__(self, args):
+        print args
+
+class Window(object):
+    def __init__(self):
+        self.cursor = (5, 13)  # class
+        # self.cursor = (8, 13)  # class
+        #  self.cursor = (12, 13)  # inner function
+        #  self.cursor = (22, 13)  # method
+        #  self.cursor = (30, 13)  # function
+        #  self.cursor = (36, 13)  # function
+
+
+class Current(object):
+    def __init__(self):
+        with open('test_py_example.py') as fobj:
+            self.buffer = fobj.read().split('\n')
+        self.window = Window()
+
+
+class MockVim(object):
+    current = Current()
+    command = Command()
+
+
+sys.modules['vim'] = vim = MockVim
+
+import pythonhelper
+
+
+class TestTagsHelper(unittest.TestCase):
+
+    def test_import(self):
+        vim.current.window.cursor = (1, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 2)
+        self.assertIsNone(tag)
+
+    def test_class(self):
+        vim.current.window.cursor = (4, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'class')
+
+        vim.current.window.cursor = (6, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'class')
+
+        vim.current.window.cursor = (7, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'class')
+
+    def test_init(self):
+        vim.current.window.cursor = (9, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'method')
+
+        vim.current.window.cursor = (11, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'method')
+
+    def test_method(self):
+        vim.current.window.cursor = (13, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'method')
+
+        vim.current.window.cursor = (15, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'method')
+
+        vim.current.window.cursor = (24, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'method')
+
+        # those tests should run if we have some kind of lexer analiser, not a
+        # simple py source parser.
+        #
+        # vim.current.window.cursor = (32, 1)
+        # tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        # self.assertEqual(tag.tag_type, 'method')
+
+        # vim.current.window.cursor = (34, 1)
+        # tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        # self.assertEqual(tag.tag_type, 'method')
+
+    def test_inner_function(self):
+        vim.current.window.cursor = (16, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+        vim.current.window.cursor = (18, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+        vim.current.window.cursor = (22, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+        vim.current.window.cursor = (23, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+    def test_main(self):
+        vim.current.window.cursor = (37, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+        vim.current.window.cursor = (38, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+        vim.current.window.cursor = (40, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertEqual(tag.tag_type, 'function')
+
+    def test_ifmain(self):
+        vim.current.window.cursor = (41, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertIsNone(tag)
+
+        vim.current.window.cursor = (42, 1)
+        tag = pythonhelper.PythonHelper._get_tag(1, 3)
+        self.assertIsNone(tag)
+
+
+if __name__ == "__main__":
+    unittest.main()