diff --git a/ICD.Common.Utils.Tests/Collections/IcdHashSetTest.cs b/ICD.Common.Utils.Tests/Collections/IcdHashSetTest.cs
new file mode 100644
index 0000000..831a6b4
--- /dev/null
+++ b/ICD.Common.Utils.Tests/Collections/IcdHashSetTest.cs
@@ -0,0 +1,161 @@
+using System;
+using NUnit.Framework;
+using ICD.Common.Properties;
+using ICD.Common.Utils.Collections;
+
+namespace Icd.Common.Utils.Tests.Collections
+{
+	[TestFixture]
+	public sealed class IcdHashSetTest
+	{
+		[Test, UsedImplicitly]
+		public void NullSetTest()
+		{
+			Assert.AreEqual(0, IcdHashSet<int>.NullSet.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void CountTest()
+		{
+			Assert.AreEqual(3, new IcdHashSet<int>(new[] {1, 2, 2, 3}).Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void AddTest()
+		{
+			IcdHashSet<string> set = new IcdHashSet<string>();
+
+			Assert.IsTrue(set.Add("One"));
+			Assert.IsFalse(set.Add("One"));
+
+			Assert.Throws<ArgumentNullException>(() => set.Add(null));
+		}
+
+		[Test, UsedImplicitly]
+		public void AddRangeTest()
+		{
+			IcdHashSet<int> set = new IcdHashSet<int>();
+
+			set.AddRange(new []{1, 2, 2, 3});
+
+			Assert.AreEqual(3, set.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void ClearTest()
+		{
+			IcdHashSet<int> set = new IcdHashSet<int>(new[] {1, 2, 2, 3});
+			set.Clear();
+
+			Assert.AreEqual(0, set.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void ContainsTest()
+		{
+			IcdHashSet<int> set = new IcdHashSet<int>(new[] { 1, 2, 2, 3 });
+
+			Assert.IsTrue(set.Contains(1));
+			Assert.IsTrue(set.Contains(2));
+			Assert.IsTrue(set.Contains(3));
+			Assert.IsFalse(set.Contains(4));
+		}
+
+		[Test, UsedImplicitly]
+		public void RemoveTest()
+		{
+			IcdHashSet<int> set = new IcdHashSet<int>(new[] { 1, 2, 2, 3 });
+			set.Remove(2);
+
+			Assert.IsFalse(set.Contains(2));
+		}
+
+		[Test, UsedImplicitly]
+		public void UnionTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> union = one.Union(two);
+
+			Assert.AreEqual(3, union.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void SubtractTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> subtract = one.Subtract(two);
+
+			Assert.AreEqual(1, subtract.Count);
+			Assert.IsTrue(subtract.Contains(1));
+		}
+
+		[Test, UsedImplicitly]
+		public void IsSubsetOfTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> three = new IcdHashSet<int>(new[] { 1, 2, 3 });
+
+			Assert.IsFalse(one.IsSubsetOf(two));
+			Assert.IsTrue(one.IsSubsetOf(three));
+		}
+
+		[Test, UsedImplicitly]
+		public void IntersectionTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> intersection = one.Intersection(two);
+
+			Assert.AreEqual(1, intersection.Count);
+			Assert.IsTrue(intersection.Contains(2));
+		}
+
+		[Test, UsedImplicitly]
+		public void NonIntersectionTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> nonIntersection = one.NonIntersection(two);
+
+			Assert.AreEqual(2, nonIntersection.Count);
+			Assert.IsTrue(nonIntersection.Contains(1));
+			Assert.IsTrue(nonIntersection.Contains(3));
+		}
+
+		[Test, UsedImplicitly]
+		public void IsProperSubsetOfTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> three = new IcdHashSet<int>(new[] { 1, 2, 3 });
+
+			Assert.IsFalse(one.IsProperSubsetOf(two));
+			Assert.IsTrue(one.IsProperSubsetOf(three));
+		}
+
+		[Test, UsedImplicitly]
+		public void IsSupersetOfTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 2, 3 });
+			IcdHashSet<int> three = new IcdHashSet<int>(new[] { 1, 2, 3 });
+
+			Assert.IsFalse(two.IsSupersetOf(one));
+			Assert.IsTrue(three.IsSupersetOf(one));
+		}
+
+		[Test, UsedImplicitly]
+		public void IsProperSupersetOfTest()
+		{
+			IcdHashSet<int> one = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> two = new IcdHashSet<int>(new[] { 1, 2 });
+			IcdHashSet<int> three = new IcdHashSet<int>(new[] { 1, 2, 3 });
+
+			Assert.IsFalse(two.IsProperSupersetOf(one));
+			Assert.IsTrue(three.IsProperSupersetOf(one));
+		}
+	}
+}
\ No newline at end of file
diff --git a/ICD.Common.Utils.Tests/Collections/ScrollQueueTest.cs b/ICD.Common.Utils.Tests/Collections/ScrollQueueTest.cs
new file mode 100644
index 0000000..bf5e7a2
--- /dev/null
+++ b/ICD.Common.Utils.Tests/Collections/ScrollQueueTest.cs
@@ -0,0 +1,80 @@
+using System.Linq;
+using NUnit.Framework;
+using ICD.Common.Properties;
+using ICD.Common.Utils.Collections;
+
+namespace ICD.Common.Utils.Tests.Collections
+{
+	[TestFixture]
+	public sealed class ScrollQueueTest
+	{
+		[Test, UsedImplicitly]
+		public void MaxSizeTest()
+		{
+			ScrollQueue<int> test = new ScrollQueue<int>(5);
+			test.Enqueue(0);
+			test.Enqueue(1);
+			test.Enqueue(2);
+			test.Enqueue(3);
+			test.Enqueue(4);
+
+			Assert.AreEqual(5, test.Count);
+
+			test.MaxSize = 3;
+
+			Assert.AreEqual(3, test.Count);
+			Assert.AreEqual(2, test.Peek());
+
+			test.Enqueue(0);
+
+			Assert.AreEqual(3, test.Count);
+			Assert.AreEqual(3, test.Peek());
+		}
+
+		[Test, UsedImplicitly]
+		public void ClearTest()
+		{
+			ScrollQueue<int> test = new ScrollQueue<int>(5);
+			test.Enqueue(0);
+			test.Clear();
+
+			Assert.AreEqual(0, test.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void EnqueueTest()
+		{
+			ScrollQueue<int> test = new ScrollQueue<int>(5);
+			test.Enqueue(0);
+			test.Enqueue(1);
+
+			Assert.AreEqual(2, test.Count);
+
+			int[] array = test.ToArray();
+
+			Assert.AreEqual(0, array[0]);
+			Assert.AreEqual(1, array[1]);
+		}
+
+		[Test, UsedImplicitly]
+		public void DequeueTest()
+		{
+			ScrollQueue<int> test = new ScrollQueue<int>(5);
+			test.Enqueue(0);
+			test.Enqueue(1);
+
+			Assert.AreEqual(0, test.Dequeue());
+			Assert.AreEqual(1, test.Count);
+		}
+
+		[Test, UsedImplicitly]
+		public void PeekTest()
+		{
+			ScrollQueue<int> test = new ScrollQueue<int>(5);
+			test.Enqueue(0);
+			test.Enqueue(1);
+
+			Assert.AreEqual(0, test.Peek());
+		}
+	}
+}
\ No newline at end of file
diff --git a/ICD.Common.Utils.Tests/MathUtilsTest.cs b/ICD.Common.Utils.Tests/MathUtilsTest.cs
new file mode 100644
index 0000000..2e3a76f
--- /dev/null
+++ b/ICD.Common.Utils.Tests/MathUtilsTest.cs
@@ -0,0 +1,37 @@
+using ICD.Common.Properties;
+using NUnit.Framework;
+
+namespace ICD.Common.Utils.Tests
+{
+	[TestFixture]
+	public sealed class MathUtilsTest
+	{
+		[Test, UsedImplicitly]
+		public void ClampTest()
+		{
+			Assert.AreEqual(MathUtils.Clamp(-10, 0, 0), 0);
+			Assert.AreEqual(MathUtils.Clamp(-10, 10, 0), 0);
+			Assert.AreEqual(MathUtils.Clamp(-10, 0, 10), 0);
+
+			Assert.AreEqual(MathUtils.Clamp(0, 0, 0), 0);
+			Assert.AreEqual(MathUtils.Clamp(0, 10, 0), 0);
+			Assert.AreEqual(MathUtils.Clamp(0, 0, 10), 0);
+
+			Assert.AreEqual(MathUtils.Clamp(20, 0, 10), 10);
+			Assert.AreEqual(MathUtils.Clamp(20, 10, 0), 10);
+			Assert.AreEqual(MathUtils.Clamp(20, 10, 10), 10);
+		}
+
+		[Test, UsedImplicitly]
+		public void MapRangeTest()
+		{
+			Assert.AreEqual(0, MathUtils.MapRange(0, 100, 0, 10, 0));
+			Assert.AreEqual(5, MathUtils.MapRange(0, 100, 0, 10, 50));
+			Assert.AreEqual(10, MathUtils.MapRange(0, 100, 0, 10, 100));
+
+			Assert.AreEqual(0, MathUtils.MapRange(0, 10, 0, 100, 0));
+			Assert.AreEqual(50, MathUtils.MapRange(0, 10, 0, 100, 5));
+			Assert.AreEqual(100, MathUtils.MapRange(0, 10, 0, 100, 10));
+		}
+	}
+}
diff --git a/ICD.Common.Utils.Tests/PathUtilsTest.cs b/ICD.Common.Utils.Tests/PathUtilsTest.cs
new file mode 100644
index 0000000..36fc190
--- /dev/null
+++ b/ICD.Common.Utils.Tests/PathUtilsTest.cs
@@ -0,0 +1,25 @@
+using System.Linq;
+using NUnit.Framework;
+using ICD.Common.Utils;
+using ICD.Common.Properties;
+#if SIMPLSHARP
+using Crestron.IO;
+#else
+using System.IO;
+#endif
+
+namespace RSD.SimplSharp.Common.Interfaces.Tests.Utils
+{
+	[TestFixture]
+	public sealed class PathUtilsTest
+	{
+		[Test, UsedImplicitly]
+		public void JoinTest()
+		{
+			string expected = Path.Combine("A", "B");
+			expected = Path.Combine(expected, "C");
+
+			Assert.AreEqual(expected, PathUtils.Join("A", "B", "C"));
+		}
+	}
+}
diff --git a/ICD.Common.Utils.Tests/StringUtilsTest.cs b/ICD.Common.Utils.Tests/StringUtilsTest.cs
new file mode 100644
index 0000000..070aab9
--- /dev/null
+++ b/ICD.Common.Utils.Tests/StringUtilsTest.cs
@@ -0,0 +1,82 @@
+using ICD.Common.Properties;
+using NUnit.Framework;
+
+namespace ICD.Common.Utils.Tests
+{
+	[TestFixture]
+	public sealed class StringUtilsTest
+	{
+		[Test, UsedImplicitly]
+		public void ToHexLiteralTest()
+		{
+			const string hex = "\x08\x22\x00\x00\x00\x02";
+			string output = StringUtils.ToHexLiteral(hex);
+
+			Assert.AreEqual(@"\x08\x22\x00\x00\x00\x02", output);
+		}
+
+		[Test, UsedImplicitly]
+		public void FromHexLiteralTest()
+		{
+			const string literal = @"\x08\x22\x00\x00\x00\x02";
+			string output = StringUtils.FromHexLiteral(literal);
+
+			Assert.AreEqual("\x08\x22\x00\x00\x00\x02", output);
+		}
+
+		[Test, UsedImplicitly]
+		public void NiceNameTest()
+		{
+			string output = StringUtils.NiceName("TodayILiveInTheUSAWithSimon");
+			Assert.AreEqual("Today I Live In The USA With Simon", output);
+		}
+
+		[Test, UsedImplicitly]
+		public void SafeNumericFormatTest()
+		{
+			Assert.AreEqual(string.Empty, StringUtils.SafeNumericFormat("# # ###.###.####", string.Empty));
+			Assert.AreEqual("9 1 252.943.4324", StringUtils.SafeNumericFormat("# # ###.###.####", "0000912529434324"));
+			Assert.AreEqual("9 1 252.943.4324", StringUtils.SafeNumericFormat("# # ###.###.####", "912529434324"));
+			Assert.AreEqual("1 252.943.4324", StringUtils.SafeNumericFormat("# # ###.###.####", "12529434324"));
+			Assert.AreEqual("252.943.4324", StringUtils.SafeNumericFormat("# # ###.###.####", "2529434324"));
+			Assert.AreEqual("052.943.4324", StringUtils.SafeNumericFormat("# # ###.###.####", "0529434324"));
+		}
+
+		[Test, UsedImplicitly]
+		public void ReverseTest()
+		{
+			Assert.AreEqual("rabooF", StringUtils.Reverse("Foobar"));
+		}
+
+		[Test, UsedImplicitly]
+		public void ArrayFormatTest()
+		{
+			int[] items = {1, 4, 3, 2, 5};
+			Assert.AreEqual("[1, 4, 3, 2, 5]", StringUtils.ArrayFormat(items));
+		}
+
+		[Test, UsedImplicitly]
+		public void RangeFormatTest()
+		{
+			Assert.AreEqual("[-3 - 5]", StringUtils.RangeFormat(-3, 5));
+		}
+
+		[Test, UsedImplicitly]
+		public void UppercaseFirstTest()
+		{
+			Assert.AreEqual("Foobar", StringUtils.UppercaseFirst("foobar"));
+		}
+
+		[Test, UsedImplicitly]
+		public void ToIpIdStringTest()
+		{
+			Assert.AreEqual("0x67", StringUtils.ToIpIdString(0x67));
+		}
+
+		[Test, UsedImplicitly]
+		public void FromIpIdStringTest()
+		{
+			Assert.AreEqual(0x67, StringUtils.FromIpIdString("0x67"));
+		}
+	}
+}
diff --git a/ICD.Common.Utils.Tests/Xml/IcdXmlAttributeTest.cs b/ICD.Common.Utils.Tests/Xml/IcdXmlAttributeTest.cs
new file mode 100644
index 0000000..e3952bd
--- /dev/null
+++ b/ICD.Common.Utils.Tests/Xml/IcdXmlAttributeTest.cs
@@ -0,0 +1,17 @@
+using ICD.Common.Properties;
+using ICD.Common.Utils.Xml;
+using NUnit.Framework;
+
+namespace ICD.Common.Utils.Tests.Xml
+{
+	[TestFixture]
+	public sealed class IcdXmlAttributeTest
+	{
+		[Test, UsedImplicitly]
+		public void ValueAsIntTest()
+		{
+			IcdXmlAttribute attribute = new IcdXmlAttribute("test", "12");
+			Assert.AreEqual("12", attribute.Value);
+		}
+	}
+}
\ No newline at end of file
diff --git a/ICD.Common.Utils.Tests/Xml/XmlUtilsTest.cs b/ICD.Common.Utils.Tests/Xml/XmlUtilsTest.cs
new file mode 100644
index 0000000..3653c1c
--- /dev/null
+++ b/ICD.Common.Utils.Tests/Xml/XmlUtilsTest.cs
@@ -0,0 +1,164 @@
+using System.Collections.Generic;
+using System.Linq;
+using NUnit.Framework;
+using ICD.Common.Properties;
+using ICD.Common.Utils.Xml;
+#if SIMPLSHARP
+using Crestron.Xml;
+#else
+using System.Xml;
+#endif
+
+namespace ICD.Common.Utils.Tests.Xml
+{
+	[TestFixture]
+	public sealed class XmlUtilsTest
+	{
+		// Whitespace is important for testing Insignificant Whitespace nodes.
+		private const string EXAMPLE_XML = "   <Level1 attr1=\"1\" attr2=\"2\">          "
+		                                   + "  <Level2>    "
+		                                   + "  </Level2>     "
+		                                   + " <Level2>    "
+		                                   + " <Level3>Some text</Level3>     "
+		                                   + " </Level2>   "
+		                                   + "  </Level1>     ";
+
+		// For testing empty elements
+		private const string EXAMPLE_XML_2 = "<Level1>"
+		                                     + "<Level2 />"
+		                                     + "<Level2 />"
+		                                     + "</Level1>";
+
+		[Test, UsedImplicitly]
+		public void GetAttributesTest()
+		{
+			using (IcdXmlReader reader = new IcdXmlReader(EXAMPLE_XML))
+			{
+				reader.SkipToNextElement();
+
+				IcdXmlAttribute[] attributes = reader.GetAttributes().ToArray();
+
+				Assert.AreEqual(2, attributes.Length);
+				Assert.AreEqual("attr1", attributes[0].Name);
+				Assert.AreEqual("1", attributes[0].Value);
+				Assert.AreEqual("attr2", attributes[1].Name);
+				Assert.AreEqual("2", attributes[1].Value);
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void GetAttributeAsIntTest()
+		{
+			using (IcdXmlReader reader = new IcdXmlReader(EXAMPLE_XML))
+			{
+				reader.SkipToNextElement();
+
+				int value = reader.GetAttributeAsInt("attr1");
+				Assert.AreEqual(1, value);
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void RecursionTest()
+		{
+			List<string[]> paths = new List<string[]>();
+			List<string> nodes = new List<string>();
+
+			XmlUtils.Recurse(EXAMPLE_XML, args =>
+			                              {
+				                              paths.Add(args.Path);
+				                              nodes.Add(args.Outer);
+			                              }
+				);
+
+			Assert.AreEqual(4, paths.Count);
+
+			Assert.AreEqual("Level1", paths[0][0]);
+			Assert.AreEqual("Level2", paths[1][1]);
+			Assert.AreEqual("Level2", paths[2][1]);
+			Assert.AreEqual("Level3", paths[3][2]);
+
+			using (IcdXmlReader reader = new IcdXmlReader(nodes[3]))
+			{
+				reader.SkipToNextElement();
+				Assert.AreEqual("Some text", reader.ReadInnerXml());
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void SkipInsignificantWhitespaceTest()
+		{
+			using (IcdXmlReader reader = new IcdXmlReader(EXAMPLE_XML))
+			{
+				reader.Read();
+				Assert.AreEqual(reader.NodeType, XmlNodeType.Whitespace);
+
+				reader.SkipInsignificantWhitespace();
+				Assert.AreNotEqual(reader.NodeType, XmlNodeType.Whitespace);
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void SkipToNextElementTest()
+		{
+			using (IcdXmlReader reader = new IcdXmlReader(EXAMPLE_XML))
+			{
+				reader.SkipToNextElement();
+				Assert.AreEqual("Level1", reader.Name);
+
+				reader.SkipToNextElement();
+				Assert.AreEqual("Level2", reader.Name);
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void GetChildElementsFromXmlTest()
+		{
+			IEnumerable<IcdXmlReader> results = XmlUtils.GetChildElements(EXAMPLE_XML);
+			IcdXmlReader[] children = results.ToArray();
+
+			Assert.AreEqual(2, children.Length);
+			Assert.AreEqual("Level2", children[0].Name);
+			Assert.AreEqual("Level2", children[1].Name);
+
+			foreach (IcdXmlReader child in children)
+				child.Dispose();
+		}
+
+		[Test, UsedImplicitly]
+		public void GetChildElementsAsStringEmptyElementTest()
+		{
+			string[] results = XmlUtils.GetChildElementsAsString(EXAMPLE_XML_2).ToArray();
+
+			Assert.AreEqual(2, results.Length);
+			Assert.AreEqual("<Level2 />", results[0]);
+			Assert.AreEqual("<Level2 />", results[1]);
+		}
+
+		[Test, UsedImplicitly]
+		public void GetChildElementsTest()
+		{
+			using (IcdXmlReader reader = new IcdXmlReader(EXAMPLE_XML))
+			{
+				reader.SkipToNextElement();
+
+				IEnumerable<IcdXmlReader> results = reader.GetChildElements();
+				IcdXmlReader[] children = results.ToArray();
+
+				Assert.AreEqual(2, children.Length);
+				Assert.AreEqual("Level2", children[0].Name);
+				Assert.AreEqual("Level2", children[1].Name);
+
+				foreach (IcdXmlReader child in children)
+					child.Dispose();
+			}
+		}
+
+		[Test, UsedImplicitly]
+		public void IsValidXmlTest()
+		{
+			Assert.IsFalse(XmlUtils.IsValidXml(@"<Foo></Bar>"));
+			Assert.IsTrue(XmlUtils.IsValidXml(EXAMPLE_XML));
+		}
+	}
+}
\ No newline at end of file