public void TryCalculateTest(string exprText, double expect)
{
IArithmetricCalculator calculator = ExpressionTreeArithmetricCalculator.Create(exprText);
bool success = calculator.TryCalculate(out double result);
Assert.Equal(expect, result);
}
public void CalculateTest(string exprText, double expect)
{
IArithmetricCalculator calculator = ExpressionTreeArithmetricCalculator.Create(exprText);
double res = calculator.Calculate();
Assert.Equal(expect, res);
}
public void CalculateTest_Throws()
{
string exprText = "55++6";
Assert.Throws <InvalidExpressionException>(() => ExpressionTreeArithmetricCalculator.Create(exprText));
}