Add protection tests

BinaryObjectScanner.Test/Protection/BitpoolTests.cs

@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+using BinaryObjectScanner.Protection;
+using Xunit;
+
+namespace BinaryObjectScanner.Test.Protection
+{
+    public class BitpoolTests
+    {
+        [Fact]
+        public void CheckDirectoryPathTest()
+        {
+            string path = "path";
+            List<string> files = [];
+
+            var checker = new Bitpool();
+            List<string> actual = checker.CheckDirectoryPath(path, files);
+            Assert.Empty(actual);
+        }
+
+        [Fact]
+        public void CheckFilePathTest()
+        {
+            string path = "path";
+
+            var checker = new Bitpool();
+            string? actual = checker.CheckFilePath(path);
+            Assert.Null(actual);
+        }
+    }
+}