diff --git a/setup.py b/setup.py
index befa4e8..e864293 100644
--- a/setup.py
+++ b/setup.py
@@ -12,13 +12,13 @@ def open_file(fname):
 setup(
   name = 'word2number',
   packages = ['word2number'], # this must be the same as the name above
-  version = '0.1',
+  version = '0.2',
   license=open('LICENSE.txt').read(),
   description = 'Convert number words(eg. three hundred and forty two) to numbers(342).',
   author = 'Akshay Nagpal',
   author_email = 'akshay2626@gmail.com',
   url = 'https://github.com/akshaynagpal/w2n', # use the URL to the github repo
-  download_url = 'https://github.com/akshaynagpal/w2n/tarball/0.1', # I'll explain this in a second
+  download_url = 'https://github.com/akshaynagpal/w2n/tarball/0.2', # I'll explain this in a second
   keywords = ['numbers', 'convert', 'words'], # arbitrary keywords
   classifiers = [
       'Intended Audience :: Developers',
diff --git a/unit_testing.py b/unit_testing.py
new file mode 100644
index 0000000..bf2b839
--- /dev/null
+++ b/unit_testing.py
@@ -0,0 +1,18 @@
+import unittest
+import w2n
+
+class TestW2N(unittest.TestCase):
+
+	def test_output(self):
+		self.assertEqual(w2n.word_to_num("two million three thousand nine hundred and eighty four"),2003984)
+		self.assertEqual(w2n.word_to_num("nineteen"),19)
+		self.assertEqual(w2n.word_to_num('three billion'),3000000000)
+		self.assertEqual(w2n.word_to_num('three million'),3000000)
+		self.assertEqual(w2n.word_to_num('one hundred twenty three million four hundred fifty six thousand seven hundred and eighty nine')
+,123456789)
+		self.assertEqual(w2n.word_to_num('eleven'),11)
+		self.assertEqual(w2n.word_to_num('nineteen billion and nineteen'),19000000019)
+		self.assertEqual(w2n.word_to_num('one hundred and forty two'),142)
+
+if __name__ == '__main__':
+	unittest.main()
\ No newline at end of file
diff --git a/word2number/unit_testing.py b/word2number/unit_testing.py
new file mode 100644
index 0000000..68949db
--- /dev/null
+++ b/word2number/unit_testing.py
@@ -0,0 +1,18 @@
+import unittest
+from word2number import w2n
+
+class TestW2N(unittest.TestCase):
+
+	def test_output(self):
+		self.assertEqual(w2n.word_to_num("two million three thousand nine hundred and eighty four"),2003984)
+		self.assertEqual(w2n.word_to_num("nineteen"),19)
+		self.assertEqual(w2n.word_to_num('three billion'),3000000000)
+		self.assertEqual(w2n.word_to_num('three million'),3000000)
+		self.assertEqual(w2n.word_to_num('one hundred twenty three million four hundred fifty six thousand seven hundred and eighty nine')
+,123456789)
+		self.assertEqual(w2n.word_to_num('eleven'),11)
+		self.assertEqual(w2n.word_to_num('nineteen billion and nineteen'),19000000019)
+		self.assertEqual(w2n.word_to_num('one hundred and forty two'),142)
+
+if __name__ == '__main__':
+	unittest.main()
\ No newline at end of file