diff --git a/test_CoreAlgo.py b/test_CoreAlgo.py
new file mode 100644
index 0000000..4b38031
--- /dev/null
+++ b/test_CoreAlgo.py
@@ -0,0 +1,44 @@
+import unittest
+import CoreAlgorithm as paillier
+from typing import Tuple
+
+
+def generate_paillier_keypair() -> (
+    Tuple[paillier.PaillierPublicKey, paillier.PaillierPrivateKey]
+):
+    """生成Paillier公钥和私钥对."""
+    public_key, private_key = paillier.generate_paillier_keypair()
+    return public_key, private_key
+
+
+class TestPaillierEncryption(unittest.TestCase):
+    """测试Paillier加密算法的不同运算功能."""
+
+    @classmethod
+    def setUpClass(cls):
+        cls.public_key, cls.private_key = generate_paillier_keypair()
+        cls.x = 90000.23
+        cls.y = 90
+        cls.z = 0.5
+        cls.x_encrypted = cls.public_key.encrypt(cls.x)
+        cls.y_encrypted = cls.public_key.encrypt(cls.y)
+        cls.z_encrypted = cls.public_key.encrypt(cls.z)
+
+    def test_encryption_and_basic_arithmetic(self):
+        """Test encrypted values with basic arithmetic operations."""
+        t_encrypted = self.x_encrypted + self.y_encrypted * 0.5  # Perform encrypted arithmetic operations
+        t_decrypted = self.private_key.decrypt(t_encrypted)
+        self.assertAlmostEqual(t_decrypted, self.x + self.y * self.z, places=5, msg="Encrypted arithmetic result is incorrect")
+
+    def test_comparisons(self):
+        """Test encrypted value comparisons."""
+        self.assertNotEqual(self.x_encrypted, self.y_encrypted, msg="Encrypted values should not be equal")
+        self.assertFalse(self.x_encrypted == self.y_encrypted, msg="Equality comparison failed")
+        self.assertTrue(self.x_encrypted != self.y_encrypted, msg="Inequality comparison failed")
+
+
+    # 这里可以继续添加更多测试用例，例如对自增、自减、比较操作等的测试
+
+
+if __name__ == "__main__":
+    unittest.main()