public void GetMostRecentlyUsedEntryReturnsValidEntry(Fixture fixture, LeastRecentlyUsedCache <int, string> sut)
{
// Arrange
for (int i = 0; i < sut.Capacity; i++)
{
var key = fixture.Create <int>();
sut.AddEntry(key, fixture.Create <string>());
}
var currentLru = sut.GetLeastRecentlyUsedEntry();
// Act
sut.AddEntry(currentLru.Key, currentLru.Entry);
var actualMru = sut.GetMostRecentlyUsedEntry();
var actualLru = sut.GetLeastRecentlyUsedEntry();
// Assert
actualMru.ShouldBe(currentLru);
actualLru.ShouldNotBe(currentLru);
}
public void AddingNewItemGivenCacheFullShouldRemoveLru(Fixture fixture, LeastRecentlyUsedCache <int, string> sut)
{
// Arrange
for (int i = 0; i < sut.Capacity; i++)
{
var key = fixture.Create <int>();
sut.AddEntry(key, fixture.Create <string>());
}
var currentLru = sut.GetLeastRecentlyUsedEntry();
var newKey = fixture.Create <int>();
var newValue = fixture.Create <string>();
// Act
sut.AddEntry(newKey, newValue);
var actual = sut.ContainsKey(currentLru.Key);
// Assert
actual.ShouldBeFalse();
}