Add test utils

src/Ryujinx.Tests.Memory/RandomUtils.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Tests
+{
+    public static class RandomUtils
+    {
+        public static bool NextBool(this Random random)
+        {
+            return random.Next(2) == 1;
+        }
+
+        public static ushort NextUShort(this Random random)
+        {
+            return (ushort)random.Next(ushort.MaxValue);
+        }
+
+        public static uint NextUInt(this Random random)
+        {
+            return (uint)random.NextInt64(uint.MaxValue);
+        }
+
+        public static uint NextUInt(this Random random, uint to)
+        {
+            return (uint)random.NextInt64(to);
+        }
+
+        public static uint NextUInt(this Random random, uint from, uint to)
+        {
+            return (uint)random.NextInt64(from, to);
+        }
+
+        public static ulong NextULong(this Random random)
+        {
+            byte[] buffer = new byte[8];
+
+            random.NextBytes(buffer);
+            return BitConverter.ToUInt64(buffer);
+        }
+
+        public static ulong NextULong(this Random random, ulong from, ulong to)
+        {
+            byte[] buffer = new byte[8];
+
+            random.NextBytes(buffer);
+            // NOTE: The result won't be perfectly random, but it should be random enough for tests
+            return BitConverter.ToUInt64(buffer) % (to + 1 - from) + from;
+        }
+
+        public static byte NextByte(this Random random)
+        {
+            return (byte)random.Next(byte.MinValue, byte.MaxValue);
+        }
+
+        public static byte NextByte(this Random random, byte to)
+        {
+            return (byte)random.Next(byte.MinValue, to);
+        }
+
+        public static byte NextByte(this Random random, byte from, byte to)
+        {
+            return (byte)random.Next(from, to);
+        }
+
+        public static IEnumerable<uint> NextUIntEnumerable(this Random random, int count)
+        {
+            List<uint> list = new();
+
+            for (int i = 0; i < count; i++)
+            {
+                list.Add(random.NextUInt());
+            }
+
+            return list.AsReadOnly();
+        }
+    }
+}