public void Enqueue_Work()
{
// arrange
var queue = new DeferredWorkQueue();
// act
var count = queue.Enqueue(new MockTask());
// assert
Assert.Equal(1, queue.Count);
Assert.Equal(1, count);
Assert.False(queue.IsEmpty);
}
public void Enqueue_Null()
{
// arrange
var queue = new DeferredWorkQueue();
// act
void Error() => queue.Enqueue(null !);
// assert
Assert.Throws <ArgumentNullException>(Error);
Assert.Equal(0, queue.Count);
Assert.True(queue.IsEmpty);
}
public void Dequeue_Work_When_Empty()
{
// arrange
var queue = new DeferredWorkQueue();
// act
var dequeueSuccess1 = queue.TryDequeue(out IDeferredExecutionTask? dequeuedTask1);
// assert
Assert.Equal(0, queue.Count);
Assert.True(queue.IsEmpty);
Assert.False(dequeueSuccess1);
Assert.Null(dequeuedTask1);
}
public void Dequeue_Work_InOrder()
{
// arrange
var task1 = new MockTask {
Id = 1
};
var task2 = new MockTask {
Id = 2
};
var task3 = new MockTask {
Id = 3
};
var queue = new DeferredWorkQueue();
queue.Enqueue(task1);
queue.Enqueue(task2);
queue.Enqueue(task3);
// act
var dequeueSuccess1 = queue.TryDequeue(out IDeferredExecutionTask? dequeuedTask1);
var count1 = queue.Count;
var dequeueSuccess2 = queue.TryDequeue(out IDeferredExecutionTask? dequeuedTask2);
var count2 = queue.Count;
var dequeueSuccess3 = queue.TryDequeue(out IDeferredExecutionTask? dequeuedTask3);
var count3 = queue.Count;
// assert
Assert.Equal(0, queue.Count);
Assert.True(queue.IsEmpty);
Assert.True(dequeueSuccess1);
Assert.Same(task1, dequeuedTask1);
Assert.Equal(2, count1);
Assert.True(dequeueSuccess2);
Assert.Same(task2, dequeuedTask2);
Assert.Equal(1, count2);
Assert.True(dequeueSuccess3);
Assert.Same(task3, dequeuedTask3);
Assert.Equal(0, count3);
}