public void ShuntingYardTest()
{
SpreadsheetEngine.ExpressionTree expressionTree = new SpreadsheetEngine.ExpressionTree("5+5");
var methodInfo = expressionTree.GetType().GetMethod("ConvertToPostfix", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
if (methodInfo != null)
{
List <string> expectedResult = new List <string> {
"5", "5", "+"
};
object actualResult = methodInfo.Invoke(expressionTree, new object[] { "5+5" });
Assert.AreEqual(expectedResult, actualResult);
expectedResult = new List <string> {
"A", "B", "C", "*", "D", "/", "+", "E", "-"
};
actualResult = methodInfo.Invoke(expressionTree, new object[] { "A + B * C / D - E" });
Assert.AreEqual(expectedResult, actualResult);
expectedResult = new List <string> {
"A", "B", "C", "D", "-", "*", "+", "E", "/"
};
actualResult = methodInfo.Invoke(expressionTree, new object[] { "( A + B * ( C - D ) ) / E" });
Assert.AreEqual(expectedResult, actualResult);
expectedResult = new List <string> {
"A", "B", "C", "D", "*", "+", "*", "E", "+"
};
actualResult = methodInfo.Invoke(expressionTree, new object[] { "A * (B + C * D) + E" });
Assert.AreEqual(expectedResult, actualResult);
Assert.Pass("Sucessfully converted all infix strings to postfix list of substrings");
}
}
public void ConstructPostfixTreeTest()
{
SpreadsheetEngine.ExpressionTree expressionTree = new SpreadsheetEngine.ExpressionTree("5+5");
var methodInfo = expressionTree.GetType().GetMethod("ConstructPostfixTree", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
if (methodInfo != null)
{
SpreadsheetEngine.AdditionExpressionTreeNode expectedResult = new SpreadsheetEngine.AdditionExpressionTreeNode();
SpreadsheetEngine.ExpressionTreeNode actualResult = (SpreadsheetEngine.ExpressionTreeNode)methodInfo.Invoke(expressionTree, new object[] { new List <string> {
"5", "5", "+"
} });
Assert.AreEqual(expectedResult.GetType(), actualResult.GetType());
Assert.Pass("Root of constructed tree matches expected type");
}
}
public void TestSetVariable()
{
SpreadsheetEngine.ExpressionTree expressionTree = new SpreadsheetEngine.ExpressionTree("5+4");
expressionTree.SetVariable("A1", 42);
var fieldInfo = expressionTree.GetType().GetField("root", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
}
