Initial implementation

Encrypter Tests/Encrypter Tests.csproj

@@ -10,7 +10,11 @@
   <ItemGroup>
     <PackageReference Include="nunit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Encrypter\Encrypter.csproj" />
   </ItemGroup>
 
 </Project>

Encrypter Tests/EncrypterTests.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using Encrypter;
+using NUnit.Framework;
+
+namespace Encrypter_Tests
+{
+    public sealed class EncrypterTests
+    {
+        [Test]
+        public async Task TestSimpleEnAndDecryption()
+        {
+            var message = "This is a test with umlauts äüö.";
+            var password = "test password";
+
+            var encryptedData = await CryptoProcessor.EncryptString(message, password);
+            Assert.That(encryptedData.Length, Is.AtLeast(message.Length)); // Note: Encrypted data contains salt as well!
+
+            var decryptedMessage = await CryptoProcessor.DecryptString(encryptedData, password);
+            Assert.That(decryptedMessage, Is.EqualTo(message));
+        }
+    }
+}