[TestCase(10, CalcOperatorType.Subtraction, 4, CalcOperatorType.Division, 2, 8)] // 10 - 4 / 2
public void ThreeOperandsException(double op1, CalcOperatorType calcType1, double op2, CalcOperatorType calcType2, double op3, double result)
{
var sut = new CalculatorAPI();
sut.AddNumber(op1);
sut.AddOperator(new CalcOperator(calcType1));
sut.AddNumber(op2);
var ex = Assert.Throws <CalculatorException>(() => sut.AddOperator(new CalcOperator(calcType2)));
Assert.AreEqual("API does not support BEDMAS processing.", ex.Message);
}
[TestCase(1, CalcOperatorType.Multiplication, 4, CalcOperatorType.Addition, 5, 9)] // 1 * 4 + 5
public void ThreeOperandsAPI(double op1, CalcOperatorType calcType1, double op2, CalcOperatorType calcType2, double op3, double expected)
{
var sut = new CalculatorAPI();
sut.AddNumber(op1);
sut.AddOperator(new CalcOperator(calcType1));
sut.AddNumber(op2);
sut.AddOperator(new CalcOperator(calcType2));
sut.AddNumber(op3);
Assert.AreEqual(expected, sut.Value());
}
[TestCase(-2, CalcOperatorType.Division, 3, 2, -0.67)] // 1 / 6
public void Precision(double op1, CalcOperatorType calcType, double op2, int precision, double expected)
{
var sut = new CalculatorAPI();
sut.AddNumber(op1);
sut.AddOperator(new CalcOperator(calcType));
sut.AddNumber(op2);
Assert.AreEqual(expected, sut.Value(precision));
}
[TestCase(3, CalcOperatorType.Addition)] // 3 +
public void SingleOperandExceptionAPI(double op1, CalcOperatorType calcType)
{
var sut = new CalculatorAPI();
sut.AddNumber(op1);
sut.AddOperator(new CalcOperator(calcType));
double x;
var ex = Assert.Throws <System.AggregateException>(() => x = sut.Value());
Assert.AreEqual("One or more errors occurred. (Response status code does not indicate success: 400 (Bad Request).)", ex.Message);
}