Add test_keyring with sign and verify tests

tests/crypto/test_keyring.py

@@ -0,0 +1,34 @@
+import unittest
+import msgpack
+from nkms.crypto.keyring import KeyRing
+
+
+class TestKeyRing(unittest.TestCase):
+    def setUp(self):
+        self.keyring = KeyRing()
+        self.msg = b'this is a test'
+
+    def test_signing(self):
+        signature = self.keyring.sign(self.msg)
+
+        try:
+            sig = msgpack.loads(signature)
+            self.assertTrue(1, len(sig[0]))     # Check v
+            self.assertTrue(32, len(sig[1]))    # Check r
+            self.assertTrue(32, len(sig[2]))    # Check s
+        except Exception as e:
+            self.fail("Signature failed to msgpack.loads: {}".format(e))
+
+    def test_verification(self):
+        signature = self.keyring.sign(self.msg)
+
+        try:
+            sig = msgpack.loads(signature)
+            self.assertTrue(1, len(sig[0]))     # Check v
+            self.assertTrue(32, len(sig[1]))    # Check r
+            self.assertTrue(32, len(sig[2]))    # Check s
+        except Exception as e:
+            self.fail("Signature failed to msgpack.loads: {}".format(e))
+
+        is_valid = self.keyring.verify(self.msg, signature)
+        self.assertTrue(is_valid)