Implementation of SecureString and CryptoRngProvider

SystemExtensions.NetStandard.Security.Tests/CryptoRngProviderTests.cs

@@ -0,0 +1,39 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Linq;
+using System.Rng;
+
+namespace SystemExtensions.NetStandard.Security.Tests
+{
+    [TestClass]
+    public class CryptoRngProviderTests
+    {
+        private CryptoRngProvider cryptoRngProvider;
+
+        [TestInitialize]
+        public void TestInitialize()
+        {
+            this.cryptoRngProvider = new CryptoRngProvider();
+        }
+
+        [TestMethod]
+        public void GetBytes_ShouldSetValues()
+        {
+            var bytes = new byte[100];
+
+            this.cryptoRngProvider.GetBytes(bytes);
+
+            bytes.All(b => b == 0).Should().BeFalse();
+        }
+
+        [TestMethod]
+        public void GetNonZeroBytes_ShouldSetNonZeroValues()
+        {
+            var bytes = new byte[100];
+
+            this.cryptoRngProvider.GetNonZeroBytes(bytes);
+
+            bytes.All(b => b != 0).Should().BeTrue();
+        }
+    }
+}