public void ShouldPopAllMarkedGroups(UpdateDetector sut)
{
var groups = Fixture.CreateMany <string>(3).ToList();
foreach (var group in groups)
{
sut.MarkForUpdate(group);
}
Assert.Equal(3, sut.PopMarked().Count());
Assert.Empty(sut.PopMarked());
sut.MarkForUpdate(groups[0]);
Assert.Equal(groups[0], sut.PopMarked().Single());
Assert.Empty(sut.PopMarked());
}
public void ShouldNotMarkTheSameGroupTwice(
string group,
UpdateDetector sut)
{
sut.MarkForUpdate(group);
sut.MarkForUpdate(group);
Assert.Equal(group, sut.PopMarked().Single());
}
public void ShouldMarkManyGroupsForUpdate(
string[] groups,
UpdateDetector sut)
{
sut.MarkForUpdate(groups);
var result = sut.PopMarked();
foreach (var group in groups)
{
Assert.Contains(group, result);
}
}
public async Task ShouldMarkThreadSafely(UpdateDetector sut)
{
var tasks = new List <Task>(100);
for (var i = 1; i <= 100; i++)
{
var group = Create <string>();
tasks.Add(new Task(() => sut.MarkForUpdate(group)));
tasks.Add(new Task(() => sut.MarkForUpdate(group)));
}
Parallel.ForEach(tasks, t => t.Start());
await Task.WhenAll(tasks);
Assert.Equal(100, sut.PopMarked().Count());
}