add rsa encryption test

Author: selfmadecode

src/SafeCrypt.UnitTests/RsaTests/RsaTests.cs

@@ -0,0 +1,46 @@
+using SafeCrypt.Helpers;
+using SafeCrypt.RsaEncryption;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SafeCrypt.UnitTests.RsaTests;
+
+public class RsaTests
+{
+    [Fact]
+    public async Task EncryptAsync_DecryptAsync_ValidParameters_ReturnsOriginalData()
+    {
+        // Example: Generate RSA keys
+        var rsaKeyPair = KeyGenerators.GenerateRsaKeys(2048);
+        string rsaPublicKey = rsaKeyPair.Item1;
+        string rsaPrivateKey = rsaKeyPair.Item2;
+
+        // Arrange
+        var model = new RsaEncryptionParameters
+        {
+            DataToEncrypt = "Hello, RSA!",
+            PublicKey = rsaPublicKey
+        };
+
+        // Act
+        var encrypt = await Rsa.EncryptAsync(model);
+
+        var decryptModel = new RsaDecryptionParameters
+        {
+            DataToDecrypt = encrypt.EncryptedData,
+            PrivateKey = rsaPrivateKey
+        };
+
+        var decrypt = await Rsa.DecryptAsync(decryptModel);
+
+        // Assert
+        Assert.Equal(model.DataToEncrypt, decrypt.DecryptedData);
+        Assert.NotNull(encrypt.EncryptedData);
+        Assert.Empty(encrypt.Errors);
+        Assert.NotNull(decrypt.DecryptedData);
+        Assert.Empty(decrypt.Errors);
+    }
+}