Setup solution

ModernKeePassLib.Test/Cryptography/CryptoRandomTests.cs

@@ -0,0 +1,37 @@
+using ModernKeePassLib.Cryptography;
+using Xunit;
+
+namespace ModernKeePassLib.Test.Cryptography
+{
+    public class CryptoRandomTests
+    {
+        [Fact]
+        public void TestAddEntropy()
+        {
+            // just making sure it does not throw an exception
+            CryptoRandom.Instance.AddEntropy(new byte[1]);
+        }
+
+        [Fact]
+        public void TestGetRandomBytes()
+        {
+            const int length = 32;
+            var bytes1 = CryptoRandom.Instance.GetRandomBytes(length);
+            Assert.Equal(bytes1.Length, length);
+            var bytes2 = CryptoRandom.Instance.GetRandomBytes(length);
+            Assert.NotEqual(bytes2, bytes1);
+        }
+
+        [Fact]
+        public void TestGeneratedBytesCount()
+        {
+            const int length = 1;
+            CryptoRandom.Instance.GetRandomBytes(length);
+            var count1 = CryptoRandom.Instance.GeneratedBytesCount;
+            CryptoRandom.Instance.GetRandomBytes(length);
+            var count2 = CryptoRandom.Instance.GeneratedBytesCount;
+            Assert.True(count2 > count1);
+        }
+    }
+}
+