Adding unit test for valid xdi file. Addressing the issue #2 .

Author: AAAlvesJr

tests/__init__.py

@@ -3,6 +3,7 @@
 from tests.test_WrongFields import *
 from tests.test_MissingFields import *
 from tests.test_MissingEndOfHeader import *
+from tests.test_ValidXDI import *
 
 if __name__ == "__main__":
     unittest.main(verbosity=2)

tests/test_ValidXDI.py

@@ -0,0 +1,17 @@
+import unittest
+from xdi_validator import validate
+
+class TestValidXDI(unittest.TestCase):
+
+
+    def setUp(self):
+
+        with open("tests/valid.xdi", "r") as valid_xdi:
+            self.errors, self.data = validate(valid_xdi)
+
+    def tearDown(self):
+        del self.errors
+        del self.data
+
+    def test_valid(self):
+        self.assertEqual(len(self.errors), 0)