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));
            }
        }
}