Add test for dns_resolution

checks/dns_resolution_test.py

@@ -0,0 +1,23 @@
+import unittest
+from pprint import pprint
+
+from checks import dns_resolution
+from checks.config import Config
+
+class TestDNSResolution(unittest.TestCase):
+
+    def test_google(self):
+        """Resolves www.google.com"""
+        url = 'https://www.google.com/'
+        config = Config(urls=[url])
+        checker = dns_resolution.Checker(config=config, previous_results={})
+        result = checker.run()
+
+        self.assertIn(url, result)
+        self.assertEqual(result[url]['hostname'], 'www.google.com')
+        self.assertTrue(result[url], 'resolvable')
+        self.assertIsInstance(result[url]['ipv4_addresses'], list)
+        self.assertNotEqual(result[url]['ipv4_addresses'], [])
+
+if __name__ == '__main__':
+    unittest.main()