Inital Commit

MathEngine/EngineTests/Parser Tests/TreeNodeTests.cs

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+using MathEngine.Parser.Tokeniser;
+using MathEngine.Parser.Parser;
+namespace EngineTests
+{
+    /// <summary>
+    /// Class for testing the TreeNode class
+    /// </summary>
+    [TestClass]
+    public class TreeNodeTests
+    {
+
+        /// <summary>
+        /// Test to see if a simple expression is constructed correctly
+        /// </summary>
+        [TestMethod]
+        public void TestTreeNodexpression()
+        {
+            string testExp = "3+4";
+            TreeNode exptectedTree = new(Token.Plus);
+            Token tokfour = new("4", Token.Type.Numeric, Token.NumericType.Decimal, 0);
+            Token tokthree = new("3", Token.Type.Numeric, Token.NumericType.Decimal, 0);
+            TreeNode four = new(tokfour);
+            TreeNode three = new(tokthree);
+            exptectedTree.AddChildNode(four);
+            exptectedTree.AddChildNode(three);
+            ExpressionTree returnedTree = new (testExp);
+            Assert.IsTrue(exptectedTree.Equals(returnedTree));
+            }
+        }
+}