public void CetEnumeratorFromQueueOfBooks_OneStepMoveNext_AndCurrentBook_IteratorIsNotNull_CurrentBookNameisFirst()
{
// Arrange
var books = new List <BookIEquatable>()
{
new BookIEquatable()
{
Price = 1, Name = "First"
}, new BookIEquatable()
{
Price = 2, Name = "Second"
}
};
var queueOfBooks = new Queue <BookIEquatable>(books);
// Act
var enumerator = queueOfBooks.GetEnumerator();
enumerator.MoveNext();
BookIEquatable currentBook = enumerator.Current;
// Assert
Assert.IsNotNull(enumerator);
Assert.AreEqual(currentBook.Name, "First");
}
public void Peek_GetItemFromQueueOfBooks_ItemIsSecondBook()
{
// Arrange
IEnumerable <BookIEquatable> books = new List <BookIEquatable>()
{
new BookIEquatable()
{
Price = 1, Name = "First"
}, new BookIEquatable()
{
Price = 2, Name = "Second"
}
};
var queueOfBooks = new Queue <BookIEquatable>(books);
// Act
BookIEquatable book = queueOfBooks.Peek();
// Assert
Assert.IsTrue(book.Name == "First");
}
public void Dequeue_OneItemFromQueueOfBooks_QueueHasOneItem()
{
// Arrange
IEnumerable <BookIEquatable> books = new List <BookIEquatable>()
{
new BookIEquatable()
{
Price = 1, Name = "First"
}, new BookIEquatable()
{
Price = 2, Name = "Second"
}
};
var queueOfBooks = new Queue <BookIEquatable>(books);
// Act
BookIEquatable book = queueOfBooks.Dequeue();
// Assert
Assert.IsTrue(queueOfBooks.Count == 1);
Assert.IsTrue(book.Name == "First");
}