Create test_blockchain.py

blockchain_integration/pi_network/daictd/tests/test_blockchain.py

@@ -0,0 +1,19 @@
+import unittest
+from blockchain import Blockchain
+
+class TestBlockchain(unittest.TestCase):
+    def setUp(self):
+        self.blockchain = Blockchain()
+
+    def test_add_block(self):
+        # Test adding a new block to the blockchain
+        block_data = [...]
+        self.blockchain.add_block(block_data)
+        self.assertEqual(len(self.blockchain.chain), 1)
+
+    def test_verify_chain(self):
+        # Test verifying the integrity of the blockchain
+        self.assertTrue(self.blockchain.verify_chain())
+
+if __name__ == '__main__':
+    unittest.main()