TypeExtension methods for getting base types from a type

ICD.Common.Utils.Tests/Extensions/TypeExtensionsTest.cs

@@ -0,0 +1,64 @@
+using NUnit.Framework;
+using System;
+using System.Linq;
+
+namespace ICD.Common.Utils.Extensions
+{
+    [TestFixture]
+    public sealed class TypeExtensionsTest
+    {
+        [Test]
+        public void IsAssignableToTest()
+        {
+            Assert.IsTrue(typeof(string).IsAssignableTo(typeof(object)));
+            Assert.IsFalse(typeof(object).IsAssignableTo(typeof(string)));
+        }
+
+        [Test]
+        public void GetAllTypesTest()
+        {
+            Type[] allTypes = typeof(B).GetAllTypes().ToArray();
+
+            Assert.AreEqual(6, allTypes.Length);
+
+            Assert.IsTrue(allTypes.Contains(typeof(E)));
+            Assert.IsTrue(allTypes.Contains(typeof(D)));
+            Assert.IsTrue(allTypes.Contains(typeof(C)));
+            Assert.IsTrue(allTypes.Contains(typeof(B)));
+            Assert.IsTrue(allTypes.Contains(typeof(A)));
+            Assert.IsTrue(allTypes.Contains(typeof(object)));
+        }
+
+        [Test]
+        public void GetBaseTypesTest()
+        {
+            Type[] baseTypes = typeof(B).GetBaseTypes().ToArray();
+
+            Assert.AreEqual(2, baseTypes.Length);
+
+            Assert.IsFalse(baseTypes.Contains(typeof(B)));
+            Assert.IsTrue(baseTypes.Contains(typeof(A)));
+            Assert.IsTrue(baseTypes.Contains(typeof(object)));
+        }
+
+        private interface C
+        {
+        }
+
+        private interface D
+        {
+        }
+
+        private interface E : C, D
+        {
+        }
+
+        private class A
+        {
+        }
+
+        private class B : A, E
+        {
+        }
+    }
+}