public void CreateReturnsUniqueNumbersOnMultipleCallAsynchronously(long[] limits)
{
// Arrange
int iterations = 5;
int completed = 0;
var done = new ManualResetEvent(false);
var min = (int)limits.Min();
var max = (int)limits.Max();
int repeatCount = ((max - min) + 1) / iterations;
int expectedResult = repeatCount * iterations;
var dummyContext = new DelegatingSpecimenContext();
var sut = new RandomNumericSequenceGenerator(limits);
// Act
var numbers = new int[iterations][];
for (int i = 0; i < iterations; i++)
{
ThreadPool.QueueUserWorkItem(index =>
{
numbers[(int)index] =
Enumerable
.Range(0, repeatCount)
.Select(x => sut.Create(typeof(int), dummyContext))
.Cast <int>()
.ToArray();
if (Interlocked.Increment(ref completed) == iterations)
{
done.Set();
}
}, i);
}
done.WaitOne();
int result = numbers.SelectMany(x => x).Distinct().Count();
// Assert
Assert.Equal(expectedResult, result);
}
public void CreateWhenLimitIsReachedStartsFromTheBeginning(long[] limits)
{
// Fixture setup
var dummyContext = new DelegatingSpecimenContext();
var min = (int)limits.Min();
var max = (int)limits.Max();
int repeatCount = (max - min) + 1;
var sut = new RandomNumericSequenceGenerator(limits);
// Exercise system and verify outcome
var expectedResult = Enumerable.Range(min, repeatCount).ToArray();
for (int iteration = 0; iteration < 3; iteration++)
{
var result = Enumerable
.Range(0, repeatCount)
.Select(i => sut.Create(typeof(int), dummyContext))
.Cast <int>()
.OrderBy(x => x);
Assert.True(expectedResult.SequenceEqual(result));
}
// Teardown
}
/// <summary>
/// Initializes a new instance of the <see cref="RandomOptionGenerator"/> class.
/// </summary>
public RandomOptionGenerator()
{
_randomizer = new RandomNumericSequenceGenerator((byte)OptionType.Text, (byte)OptionType.Numeric);
}