public void ShouldEventuallyFindAnEvenRandomInteger_WhenGivenRandomInteger()
{
var exceptionList = new List<Exception>();
var evenNumberFound = new FibonacciRetry().Do(() =>
{
var randInt = rand.Next(0, 10000);
if (randInt % 2 == 0)
return true;
throw new ApplicationException($"Random int [{randInt}] was odd.");
}, ref exceptionList, 100, 5);
if (evenNumberFound)
{
Debug.WriteLine("Successfully found an even integer after {0} tries.", exceptionList.Count);
}
var exceptionsText = new StringBuilder();
foreach (var exceptionString in exceptionList)
{
exceptionsText.Append(exceptionString);
}
var message = String.Format("Failed to find an even number [{0}] times. Details: {1}", exceptionList.Count,
exceptionsText);
Assert.IsTrue(evenNumberFound, message);
}
public void ShouldFailTenTimesThenSucceed()
{
var exceptions = new List<Exception>();
var trueAfterTenTries = new FibonacciRetry().Do<bool>(() =>
{
if (_tenTimeFailCounter-- > 0)
{
throw new ApplicationException($"Counter is at {_tenTimeFailCounter+1}, thus greater than zero");
}
return true;
}, ref exceptions, 11, 5);
Assert.IsTrue(trueAfterTenTries, "Test delegate never succeeded");
Assert.AreEqual(10, exceptions.Count);
}
public void ShouldDoSimpleTask_WhenAsked()
{
var two = new FibonacciRetry().Do(() => 1+1);
Assert.AreEqual(2, two);
}
public void ShouldReturnDefaultOfT_WhenDividingByZero()
{
var fibonacciRetry = new FibonacciRetry();
var i = 0;
Assert.AreEqual(default(object), fibonacciRetry.Do<object>(() => 27 / i));
}
public void ShouldRunBaseCase_WhenCalledWithDefault()
{
var i = 0;
var ret = new FibonacciRetry().Do<object>((() => $"Hello {i++}"));
Assert.AreEqual("Hello 0", ret);
}
