Add tests for xxHash3

Author: uranium62

src/Standart.Hash.xxHash.Test/xxHash3Test.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Text;
+using Xunit;
+
+namespace Standart.Hash.xxHash.Test
+{
+    public class xxHash3Test
+    {
+        [Fact]
+        public void Compute_xxhash3_for_bytes()
+        {
+            // Arrange
+            var bytes = new byte[]
+            {
+            0xd2, 0x94, 0x29, 0xc9, 0x4c, 0xc5, 0x0f, 0xbb,
+            0xaa, 0xf4, 0x7c, 0xd5, 0x69, 0x5a, 0xa9, 0xbd,
+            0xaf, 0xd8, 0x3f, 0xfb, 0xca, 0x6a, 0xd4, 0x2c,
+            0x6c, 0x69, 0x7a, 0x5b, 0x0d, 0xe8, 0xd2, 0xb1,
+            0x41, 0xb3, 0x1b, 0x23, 0xdb, 0x8c, 0x25, 0xb4,
+            0x6c, 0xfb
+            };
+            var expected = 6698906707421582347UL;
+
+            // Act
+            var hash = xxHash3.ComputeHash(bytes, bytes.Length);
+
+            // Assert
+            Assert.Equal(expected, hash);
+        }
+
+        [Fact]
+        public void Compute_xxhash3_for_span()
+        {
+            // Arrange
+            var bytes = new byte[]
+            {
+            0xd2, 0x94, 0x29, 0xc9, 0x4c, 0xc5, 0x0f, 0xbb,
+            0xaa, 0xf4, 0x7c, 0xd5, 0x69, 0x5a, 0xa9, 0xbd,
+            0xaf, 0xd8, 0x3f, 0xfb, 0xca, 0x6a, 0xd4, 0x2c,
+            0x6c, 0x69, 0x7a, 0x5b, 0x0d, 0xe8, 0xd2, 0xb1,
+            0x41, 0xb3, 0x1b, 0x23, 0xdb, 0x8c, 0x25, 0xb4,
+            0x6c, 0xfb
+            };
+            var span = bytes.AsSpan();
+            var expected = 6698906707421582347UL;
+
+            // Act
+            var hash = xxHash3.ComputeHash(span, span.Length);
+
+            // Assert
+            Assert.Equal(expected, hash);
+        }
+
+
+        [Fact]
+        public void Compute_xxhash3_for_string()
+        {
+            // Arrange
+            var str = "veni vidi vici";
+            var bytes = Encoding.Unicode.GetBytes(str);
+
+            // Act
+            var hash1 = xxHash3.ComputeHash(str);
+            var hash2 = xxHash3.ComputeHash(bytes, bytes.Length);
+
+            // Assert
+            Assert.Equal(hash1, hash2);
+        }
+    }
+}

src/Standart.Hash.xxHash/xxHash3.cs

@@ -64,21 +64,21 @@ public static unsafe ulong ComputeHash(ReadOnlySpan<byte> data, int length, ulon
                 return UnsafeComputeHash(ptr, length, seed);
             }
         }
-        
+
         /// <summary>
         /// Compute xxHash for the string 
         /// </summary>
-        /// <param name="str">The source of data</param>
+        /// <param name="unicode">The source of data</param>
         /// <param name="seed">The seed number</param>
         /// <returns>hash</returns>
-        public static unsafe ulong ComputeHash(string str, ulong seed = 0)
+        public static unsafe ulong ComputeHash(string unicode, ulong seed = 0)
         {
-            Debug.Assert(str != null);
+            Debug.Assert(unicode != null);
 
-            fixed (char* c = str)
+            fixed (char* c = unicode)
             {
                 byte* ptr = (byte*) c;
-                int length = str.Length * 2;
+                int length = unicode.Length * 2;
 
                 return UnsafeComputeHash(ptr, length, seed);
             }