public void AddingAPageThatAlreadyExistsDoesNotChangeThePages()
{
var sut = new FifoCache(3);
var pages = new[] { 0, 1, 2 };
foreach (var page in pages)
sut.AddPage(page);
sut.AddPage(1);
CollectionAssert.AreEqual(new[] { 2, 1, 0 }, sut.Pages);
}
public void AddingAPageThatAlreadyExistsDoesNotChangeThePages()
{
var sut = new FifoCache(3);
var pages = new[] { 0, 1, 2 };
foreach (var page in pages)
{
sut.AddPage(page);
}
sut.AddPage(1);
CollectionAssert.AreEqual(new[] { 2, 1, 0 }, sut.Pages);
}
public void AddingASinglePageReturnsThatPageFollowedByNulls()
{
var sut = new FifoCache(3);
sut.AddPage(1);
var result = sut.Pages;
CollectionAssert.AreEqual(new int?[] { 1, null, null }, result);
}
public void AddingASinglePageReturnsThatPageFollowedByNulls()
{
var sut = new FifoCache(3);
sut.AddPage(1);
var result = sut.Pages;
CollectionAssert.AreEqual(new int?[] { 1, null, null }, result);
}
public void Complex()
{
var sut = new FifoCache(3);
var pages = new[] { 0, 1, 2, 3, 2, 3, 0, 4, 5, 2, 3, 1, 4, 3, 2, 6, 3, 2, 1, 2 };
foreach (var page in pages)
sut.AddPage(page);
var result = sut.Pages;
CollectionAssert.AreEqual(new[] { 2, 1, 3 }, result);
Assert.AreEqual(16, sut.PageFaults);
}
public void Complex()
{
var sut = new FifoCache(3);
var pages = new[] { 0, 1, 2, 3, 2, 3, 0, 4, 5, 2, 3, 1, 4, 3, 2, 6, 3, 2, 1, 2 };
foreach (var page in pages)
{
sut.AddPage(page);
}
var result = sut.Pages;
CollectionAssert.AreEqual(new[] { 2, 1, 3 }, result);
Assert.AreEqual(16, sut.PageFaults);
}