public void Invoke_TooLessArguments_Throws()
{
var function = new FunctionCall(typeof(FakeFunctions).GetMethod("Double"));
var ex = Assert.Throws <InvalidOperationException>(() => function.Invoke());
Assert.That(ex.Message, Does.Contain("parameter count mismatch"));
}
public void Invoke_IntPassedDoubleExpected_InvokeSucceeds()
{
var function = new FunctionCall(typeof(FakeFunctions).GetMethod("Double"));
function.AddArgument(21);
var result = function.Invoke();
Assert.That(result, Is.EqualTo(42));
}
public void Invoke_DoublePassedIntExpected_InvokeSucceeds()
{
var function = new FunctionCall(typeof(FakeFunctions).GetMethod("Round"));
function.AddArgument(21.21d);
function.AddArgument(0d);
var result = function.Invoke();
Assert.That(result, Is.EqualTo(21));
}