public void TestIfValueIsIncrementedByOne()
{
var generator = new IncrementalSequenceGenerator();
Assert.AreEqual(1, generator.GetNext(), "First value should be 1");
Assert.AreEqual(2, generator.GetNext(), "First value should be 2");
Assert.AreEqual(3, generator.GetNext(), "First value should be 3");
}
public void TestMinAndMaxAreRespected()
{
var min = 3;
var max = 11;
var generator = new IncrementalSequenceGenerator(min, max);
long value = 0;
for (var i = min; i < max; i++)
{
value = generator.GetNext();
}
Assert.AreEqual(min, value, $"The value should be {min}");
}
public void TestGetNextIsThreadSafe()
{
const int min = -11;
const int max = 543;
const int iterations = 8791;
var generator = new IncrementalSequenceGenerator(min, max);
var tasks = new List <Task>();
for (var i = 0; i < iterations; i++)
{
tasks.Add(Task.Run(() => generator.GetNext()));
}
Task.WaitAll(tasks.ToArray());
const int range = max - min;
const int reminder = iterations % range;
var value = generator.GetNext();
Assert.AreEqual(reminder + min + 1, value, $"The value should be {reminder + min + 1}");
}
