Create gcd_test.py

Unit test for GCD.py

Author: vedangmehta

tests/gcd_test.py

@@ -0,0 +1,13 @@
+import unittest
+import fractions
+import GCD
+
+class TestEuclideanGCD(unittest.TestCase):
+    def test_gcd(self):
+        self.assertEqual(fractions.gcd(30,50),GCD.greatest_common_divisor(30,50))
+        self.assertEqual(fractions.gcd(55555,123450),GCD.greatest_common_divisor(55555,123450))
+        self.assertEqual(fractions.gcd(-30,-50),GCD.greatest_common_divisor(-30,-50))
+        self.assertEqual(fractions.gcd(-1234,1234),GCD.greatest_common_divisor(-1234,1234))
+
+if __name__ == "__main__":
+    unittest.main()