public void DataTableExpressionCalculator_ValidExpression_GivesCorrectResult(string expression, double expected)
{
var calculator = DatatableExpressionCalculator.Create();
var expressionValue = calculator.Evaluate(expression);
Assert.Equal(expected, Math.Round(expressionValue, 6));
}
public void DataTableExpressionCalculator_IncorrectSyntax_ThrowsException(string expression)
{
var calculator = DatatableExpressionCalculator.Create();
Assert.Throws <SyntaxErrorException>(() => calculator.Evaluate(expression));
}
public void DataTableExpressionCalculator_InvalidExpression_ThrowsException(string expression)
{
var calculator = DatatableExpressionCalculator.Create();
Assert.Throws <EvaluateException>(() => calculator.Evaluate(expression));
}