public void EvictionHonorsLruFromPreviousSession()
{
Set("a", "a", "a");
Set("b", "b", "b");
Set("c", "c", "c");
Set("d", "d", "d");
Set("e", "e", "e");
Set("f", "f", "f");
cache.Get("b").Dispose(); // 'B' is now least recently used.
Assert.That(cache.Size, Is.EqualTo(12));
cache.Flush();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("g", "g", "g");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(10));
AssertAbsent("a");
AssertValue("b", "b", "b");
AssertAbsent("c");
AssertValue("d", "d", "d");
AssertValue("e", "e", "e");
AssertValue("f", "f", "f");
AssertValue("g", "g", "g");
}
public void EvictionHonorsLruFromCurrentSession()
{
cache.Dispose();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("a", "a", "a");
Set("b", "b", "b");
Set("c", "c", "c");
Set("d", "d", "d");
Set("e", "e", "e");
cache.Get("b").Dispose(); // 'B' is now least recently used.
// Causing the size to grow to 12 should evict 'A'.
Set("f", "f", "f");
// Causing the size to grow to 12 should evict 'C'.
Set("g", "g", "g");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(10));
AssertAbsent("a");
AssertValue("b", "b", "b");
AssertAbsent("c");
AssertValue("d", "d", "d");
AssertValue("e", "e", "e");
AssertValue("f", "f", "f");
}
public void CacheSingleValueOfSizeGreaterThanMaxSize()
{
cache.Dispose();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("a", "aaaaaaaaaaa", "a"); // size=12
cache.Flush();
AssertAbsent("a");
}
public void EditSinceEvicted()
{
cache.Dispose();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("a", "aa", "aaa"); // size 5
var snapshot = cache.Get("a");
Set("b", "bb", "bbb"); // size 5
Set("c", "cc", "ccc"); // size 5; will evict 'A'
cache.Flush();
Assert.That(snapshot.Edit(), Is.Null);
}
public void EvictOnInsert()
{
cache.Dispose();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("a", "a", "aaa"); // size 4
Set("b", "bb", "bbbb"); // size 6
Assert.That(cache.Size, Is.EqualTo(10));
// Cause the size to grow to 12 should evict 'A'.
Set("c", "c", "c");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(8));
AssertAbsent("a");
AssertValue("b", "bb", "bbbb");
AssertValue("c", "c", "c");
// Causing the size to grow to 10 should evict nothing.
Set("d", "d", "d");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(10));
AssertAbsent("a");
AssertValue("b", "bb", "bbbb");
AssertValue("c", "c", "c");
AssertValue("d", "d", "d");
// Causing the size to grow to 18 should evict 'B' and 'C'.
Set("e", "eeee", "eeee");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(10));
AssertAbsent("a");
AssertAbsent("b");
AssertAbsent("c");
AssertValue("d", "d", "d");
AssertValue("e", "eeee", "eeee");
}
public void EvictOnUpdate()
{
cache.Dispose();
cache = DiskLruCache.Open(directory, AppVersion, 2, 10);
Set("a", "a", "aa"); // size 3
Set("b", "b", "bb"); // size 3
Set("c", "c", "cc"); // size 3
Assert.That(cache.Size, Is.EqualTo(9));
// Causing the size to grow to 11 should evict 'A'.
Set("b", "b", "bbbb");
cache.Flush();
Assert.That(cache.Size, Is.EqualTo(8));
AssertAbsent("a");
AssertValue("b", "b", "bbbb");
AssertValue("c", "c", "cc");
}