public void MultiplyStrategy_Compute_HandlesDoubleMaxValues()
{
MultiplyStrategy strategy = new MultiplyStrategy();
List <double> inputs = new List <double> {
-double.MaxValue, double.MaxValue
};
Assert.ThrowsAsync <CalculatorException>(() => strategy.Compute(inputs));
}
public async Task MultiplyStrategy_Compute_HandlesZero()
{
MultiplyStrategy strategy = new MultiplyStrategy();
List <double> inputs = new List <double> {
-1, 2, -4, 1, 7, 0, 8, 12, 5730203
};
var result = await strategy.Compute(inputs);
Assert.AreEqual(0, result, 0.00000001); // The tolerance delta used here is due to the fact that double is used instead of decimal for speed
}
public async Task MultiplyStrategy_Compute_HandlesAllPositiveValues()
{
MultiplyStrategy strategy = new MultiplyStrategy();
List <double> inputs = new List <double> {
1, 2, 3, 4, 5
};
var result = await strategy.Compute(inputs);
Assert.AreEqual(120, result, 0.00000001); // The tolerance delta used here is due to the fact that double is used instead of decimal for speed
}
public async Task MultiplyStrategy_Compute_ReturnsCorrectResult()
{
MultiplyStrategy strategy = new MultiplyStrategy();
List <double> inputs = new List <double> {
3, 4.2, 6
};
var result = await strategy.Compute(inputs);
Assert.AreEqual(75.6, result, 0.00000001); // The tolerance delta used here is due to the fact that double is used instead of decimal for speed
}
public void MultiplyStrategy_Compute_HandlesNullInput()
{
MultiplyStrategy strategy = new MultiplyStrategy();
Assert.ThrowsAsync <CalculatorException>(() => strategy.Compute(MockInputs.NullList));
}