public void FailToSubtractASingleNumber()
{
var function = new SubtractFunction();
Assert.Throws <ArgumentException>(() =>
{
var inputs = function.GetInputs();
inputs[0].Value = new[] { 1 };
var result = function.Calculate(inputs);
});
}
public void SuccessfullySubtractNumbers()
{
var function = new SubtractFunction();
var inputs = function.GetInputs();
Assert.Single(inputs);
inputs[0].Value = new[] { 3, 2, 1 };
var result = function.Calculate(inputs);
Assert.NotNull(result);
Assert.Collection(result,
i =>
{
Assert.Equal(typeof(double), i.Value.GetType());
Assert.Equal(0, TypeConverter.ToObject <int>(i.Value));
});
}