Setup solution

ModernKeePassLib.Test/Cryptography/CryptoRandomStreamTests.cs

@@ -0,0 +1,54 @@
+using ModernKeePassLib.Cryptography;
+using ModernKeePassLib.Utility;
+using Xunit;
+
+namespace ModernKeePassLib.Test.Cryptography
+{
+    public class CryptoRandomStreamTests
+    {
+        private void TestGetRandomBytes(CryptoRandomStream stream)
+        {
+            const uint length = 16;
+            var bytes1 = stream.GetRandomBytes(length);
+            Assert.Equal(bytes1.Length, (int)length);
+            var bytes2 = stream.GetRandomBytes(length);
+            Assert.False(MemUtil.ArraysEqual(bytes2, bytes1));
+        }
+
+        [Fact]
+        public void TestGetRandomBytesCrsAlgorithmSalsa20()
+        {
+            var stream = new CryptoRandomStream(CrsAlgorithm.Salsa20, new byte[16]);
+            TestGetRandomBytes(stream);
+        }
+
+        [Fact]
+        public void TestGetRandomBytesCrsAlgorithmArcFourVariant()
+        {
+            var stream = new CryptoRandomStream(CrsAlgorithm.ArcFourVariant, new byte[16]);
+            TestGetRandomBytes(stream);
+        }
+
+        private void TestGetRandomInt64(CryptoRandomStream stream)
+        {
+            var value1 = stream.GetRandomUInt64();
+            var value2 = stream.GetRandomUInt64();
+            Assert.NotEqual(value2, value1);
+        }
+
+        [Fact]
+        public void TestGetRandomInt64AlgorithmSalsa20()
+        {
+            var stream = new CryptoRandomStream(CrsAlgorithm.Salsa20, new byte[16]);
+            TestGetRandomInt64(stream);
+        }
+
+        [Fact]
+        public void TestGetRandomInt64AlgorithmArcFourVariant()
+        {
+            var stream = new CryptoRandomStream(CrsAlgorithm.ArcFourVariant, new byte[16]);
+            TestGetRandomInt64(stream);
+        }
+    }
+}
+