public void InnerListTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
var node = dict.innerList.First;
Assert.Equal("key3", node.Value.Key);
node = node.Next;
Assert.Equal("key2", node.Value.Key);
node = node.Next;
Assert.Equal("key1", node.Value.Key);
// 2 -> 3 -> 1 の順に値を参照
var x = dict["key2"];
x = dict["key3"];
x = dict["key1"];
// 直近に参照した順で並んでいるかテスト
node = dict.innerList.First;
Assert.Equal("key1", node.Value.Key);
node = node.Next;
Assert.Equal("key3", node.Value.Key);
node = node.Next;
Assert.Equal("key2", node.Value.Key);
}
public ImageCache()
{
this.innerDictionary = new LRUCacheDictionary<string, Task<MemoryImage>>(trimLimit: 300, autoTrimCount: 100);
this.innerDictionary.CacheRemoved += (s, e) => {
// まだ参照されている場合もあるのでDisposeはファイナライザ任せ
this.CacheRemoveCount++;
};
this.cancelTokenSource = new CancellationTokenSource();
}
public void AddTest()
{
var dict = new LRUCacheDictionary<string, string>();
dict.Add("key1", "value1");
Assert.That(dict.innerDict.Count, Is.EqualTo(1));
Assert.That(dict.innerDict.ContainsKey("key1"), Is.True);
var internalNode = dict.innerDict["key1"];
Assert.That(internalNode.Value.Key, Is.EqualTo("key1"));
Assert.That(internalNode.Value.Value, Is.EqualTo("value1"));
dict.Add("key2", "value2");
Assert.That(dict.innerDict.Count, Is.EqualTo(2));
Assert.That(dict.innerDict.ContainsKey("key2"), Is.True);
internalNode = dict.innerDict["key2"];
Assert.That(internalNode.Value.Key, Is.EqualTo("key2"));
Assert.That(internalNode.Value.Value, Is.EqualTo("value2"));
}
public void AutoTrimTest()
{
var dict = new LRUCacheDictionary<string, string>();
dict.AutoTrimCount = 4; // 4アクセス毎に
dict.TrimLimit = 3; // 3個を越えるアイテムを削除する
dict["key1"] = "value1"; // 1アクセス目
dict["key2"] = "value2"; // 2アクセス目
dict["key3"] = "value3"; // 3アクセス目
dict["key4"] = "value4"; // 4アクセス目 (この直後にTrim)
// 1 -> 2 -> 3 -> 4 の順にアクセスしたため、直近 3 件の 2, 3, 4 だけが残る
Assert.That(dict.innerDict.Keys, Is.EquivalentTo(new[] { "key2", "key3", "key4" }));
dict["key5"] = "value5"; // 5アクセス目
dict.Add("key6", "value6"); // 6アクセス目
var x = dict["key2"]; // 7アクセス目
dict.TryGetValue("key4", out x); // 8アクセス目 (この直後にTrim)
// 5 -> 6 -> 2 -> 4 の順でアクセスしたため、直近 3 件の 6, 2, 4 だけが残る
Assert.That(dict.innerDict.Keys, Is.EquivalentTo(new[] { "key6", "key2", "key4" }));
}
public void TrimLimitTest(int trimLimit)
{
var dict = new LRUCacheDictionary<string, string>()
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
dict.TrimLimit = trimLimit;
var ret = dict.Trim();
if (trimLimit >= 3)
{
// trimLimit がアイテムの件数より大きい場合、Trim メソッドは動作せずに false を返す。
Assert.False(ret);
Assert.Equal(3, dict.Count);
}
else
{
Assert.True(ret);
Assert.Equal(trimLimit, dict.Count);
}
}
public void CountTest()
{
var dict = new LRUCacheDictionary<string, string>();
Assert.That(dict.Count, Is.EqualTo(0));
dict.Add("key1", "value1");
Assert.That(dict.Count, Is.EqualTo(1));
dict.Add("key2", "value2");
Assert.That(dict.Count, Is.EqualTo(2));
dict.Remove("key1");
Assert.That(dict.Count, Is.EqualTo(1));
dict.Clear();
Assert.That(dict.Count, Is.EqualTo(0));
}
public void EnumeratorTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
var enumerator = dict.GetEnumerator();
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo(new KeyValuePair<string, string>("key1", "value1")));
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo(new KeyValuePair<string, string>("key2", "value2")));
Assert.That(enumerator.MoveNext(), Is.True);
Assert.That(enumerator.Current, Is.EqualTo(new KeyValuePair<string, string>("key3", "value3")));
Assert.That(enumerator.MoveNext(), Is.False);
}
public void AddTest()
{
var dict = new LRUCacheDictionary<string, string>();
dict.Add("key1", "value1");
Assert.Equal(1, dict.innerDict.Count);
Assert.True(dict.innerDict.ContainsKey("key1"));
var internalNode = dict.innerDict["key1"];
Assert.Equal("key1", internalNode.Value.Key);
Assert.Equal("value1", internalNode.Value.Value);
dict.Add("key2", "value2");
Assert.Equal(2, dict.innerDict.Count);
Assert.True(dict.innerDict.ContainsKey("key2"));
internalNode = dict.innerDict["key2"];
Assert.Equal("key2", internalNode.Value.Key);
Assert.Equal("value2", internalNode.Value.Value);
}
public void KeysTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
Assert.Equal(new[] { "key1", "key2", "key3" }, dict.Keys, collComparer);
dict.Add("foo", "bar");
Assert.Equal(new[] { "key1", "key2", "key3", "foo" }, dict.Keys, collComparer);
dict.Remove("key2");
Assert.Equal(new[] { "key1", "key3", "foo" }, dict.Keys, collComparer);
dict.Clear();
Assert.Empty(dict.Keys);
}
public void ContainsTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
Assert.True(dict.Contains(new KeyValuePair<string, string>("key1", "value1")));
Assert.False(dict.Contains(new KeyValuePair<string, string>("key3", "value2")));
Assert.False(dict.Contains(new KeyValuePair<string, string>("value3", "key3")));
Assert.False(dict.Contains(new KeyValuePair<string, string>("hogehoge", "hogehoge")));
}
public void TryGetValueTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
string value;
var ret = dict.TryGetValue("key1", out value);
Assert.That(ret, Is.True);
Assert.That(value, Is.EqualTo("value1"));
ret = dict.TryGetValue("hogehoge", out value);
Assert.That(ret, Is.False);
Assert.That(value, Is.Null);
}
public void IsReadOnlyTest()
{
var dict = new LRUCacheDictionary<string, string>();
Assert.That(dict.IsReadOnly, Is.False);
}
public void SetterTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
dict["key1"] = "foo";
Assert.That(dict.innerDict["key1"].Value.Value, Is.EqualTo("foo"));
dict["hogehoge"] = "bar";
Assert.That(dict.innerDict.ContainsKey("hogehoge"), Is.True);
Assert.That(dict.innerDict["hogehoge"].Value.Value, Is.EqualTo("bar"));
}
public void GetterTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
Assert.That(dict["key1"], Is.EqualTo("value1"));
Assert.That(dict["key2"], Is.EqualTo("value2"));
Assert.That(dict["key3"], Is.EqualTo("value3"));
Assert.Throws<KeyNotFoundException>(() => { var x = dict["hogehoge"]; });
}
public void TryGetValueTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
string value;
var ret = dict.TryGetValue("key1", out value);
Assert.True(ret);
Assert.Equal("value1", value);
ret = dict.TryGetValue("hogehoge", out value);
Assert.False(ret);
Assert.Null(value);
}
public void SetterTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
dict["key1"] = "foo";
Assert.Equal("foo", dict.innerDict["key1"].Value.Value);
dict["hogehoge"] = "bar";
Assert.True(dict.innerDict.ContainsKey("hogehoge"));
Assert.Equal("bar", dict.innerDict["hogehoge"].Value.Value);
}
public void GetterTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
Assert.Equal("value1", dict["key1"]);
Assert.Equal("value2", dict["key2"]);
Assert.Equal("value3", dict["key3"]);
Assert.Throws<KeyNotFoundException>(() => { var x = dict["hogehoge"]; });
}
public void Remove2Test()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
var ret = dict.Remove(new KeyValuePair<string, string>("key1", "value1"));
Assert.True(ret);
Assert.Equal(2, dict.innerDict.Count);
Assert.Equal(2, dict.innerList.Count);
Assert.False(dict.innerDict.ContainsKey("key1"));
Assert.True(dict.innerDict.ContainsKey("key2"));
Assert.True(dict.innerDict.ContainsKey("key3"));
ret = dict.Remove(new KeyValuePair<string, string>("key2", "hogehoge"));
Assert.False(ret);
dict.Remove(new KeyValuePair<string, string>("key2", "value2"));
dict.Remove(new KeyValuePair<string, string>("key3", "value3"));
Assert.Empty(dict.innerDict);
Assert.Empty(dict.innerList);
ret = dict.Remove(new KeyValuePair<string, string>("hogehoge", "hogehoge"));
Assert.False(ret);
}
public void InnerListTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
var node = dict.innerList.First;
Assert.That(node.Value.Key, Is.EqualTo("key3"));
node = node.Next;
Assert.That(node.Value.Key, Is.EqualTo("key2"));
node = node.Next;
Assert.That(node.Value.Key, Is.EqualTo("key1"));
// 2 -> 3 -> 1 の順に値を参照
var x = dict["key2"];
x = dict["key3"];
x = dict["key1"];
// 直近に参照した順で並んでいるかテスト
node = dict.innerList.First;
Assert.That(node.Value.Key, Is.EqualTo("key1"));
node = node.Next;
Assert.That(node.Value.Key, Is.EqualTo("key3"));
node = node.Next;
Assert.That(node.Value.Key, Is.EqualTo("key2"));
}
public void ValuesTest()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
Assert.Equal(new[] { "value1", "value2", "value3" }, dict.Values, collComparer);
dict.Add("foo", "bar");
Assert.Equal(new[] { "value1", "value2", "value3", "bar" }, dict.Values, collComparer);
dict.Remove("key2");
Assert.Equal(new[] { "value1", "value3", "bar" }, dict.Values, collComparer);
dict.Clear();
Assert.Empty(dict.Values);
}
public void RemoveTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
var ret = dict.Remove("key1");
Assert.That(ret, Is.True);
Assert.That(dict.innerDict.Count, Is.EqualTo(2));
Assert.That(dict.innerList.Count, Is.EqualTo(2));
Assert.That(dict.innerDict.ContainsKey("key1"), Is.False);
Assert.That(dict.innerDict.ContainsKey("key2"), Is.True);
Assert.That(dict.innerDict.ContainsKey("key3"), Is.True);
dict.Remove("key2");
dict.Remove("key3");
Assert.That(dict.innerDict, Is.Empty);
Assert.That(dict.innerList, Is.Empty);
ret = dict.Remove("hogehoge");
Assert.That(ret, Is.False);
}
public void CountTest()
{
var dict = new LRUCacheDictionary<string, string>();
Assert.Equal(0, dict.Count);
dict.Add("key1", "value1");
Assert.Equal(1, dict.Count);
dict.Add("key2", "value2");
Assert.Equal(2, dict.Count);
dict.Remove("key1");
Assert.Equal(1, dict.Count);
dict.Clear();
Assert.Equal(0, dict.Count);
}
public void TrimLimitTest([Range(1, 5)] int trimLimit)
{
var dict = new LRUCacheDictionary<string, string>()
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
dict.TrimLimit = trimLimit;
var ret = dict.Trim();
if (trimLimit >= 3)
{
// trimLimit がアイテムの件数より大きい場合、Trim メソッドは動作せずに false を返す。
Assert.That(ret, Is.False);
Assert.That(dict.Count, Is.EqualTo(3));
}
else
{
Assert.That(ret, Is.True);
Assert.That(dict.Count, Is.EqualTo(trimLimit));
}
}
public void Enumerator2Test()
{
var dict = new LRUCacheDictionary<string, string>
{
["key1"] = "value1",
["key2"] = "value2",
["key3"] = "value3",
};
var enumerator = ((IEnumerable)dict).GetEnumerator();
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair<string, string>("key1", "value1"), enumerator.Current);
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair<string, string>("key2", "value2"), enumerator.Current);
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair<string, string>("key3", "value3"), enumerator.Current);
Assert.False(enumerator.MoveNext());
}
public void TrimOrderTest()
{
var dict = new LRUCacheDictionary<string, string>()
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
{"key4", "value4"},
{"key5", "value5"},
};
// 4 -> 2 -> 3 -> 1 -> 5 の順で参照
var x = dict["key4"];
x = dict["key2"];
x = dict["key3"];
x = dict["key1"];
x = dict["key5"];
// 3 個までに縮小
dict.TrimLimit = 3;
dict.Trim();
// 直近に参照された 3 -> 1 -> 5 のみ残っているはず
Assert.That(dict.ContainsKey("key1"), Is.True);
Assert.That(dict.ContainsKey("key2"), Is.False);
Assert.That(dict.ContainsKey("key3"), Is.True);
Assert.That(dict.ContainsKey("key4"), Is.False);
Assert.That(dict.ContainsKey("key5"), Is.True);
}
public void ContainsTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
Assert.That(dict.Contains(new KeyValuePair<string, string>("key1", "value1")), Is.True);
Assert.That(dict.Contains(new KeyValuePair<string, string>("key3", "value2")), Is.False);
Assert.That(dict.Contains(new KeyValuePair<string, string>("value3", "key3")), Is.False);
Assert.That(dict.Contains(new KeyValuePair<string, string>("hogehoge", "hogehoge")), Is.False);
}
public void ValuesTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
Assert.That(dict.Values, Is.EquivalentTo(new[] { "value1", "value2", "value3" }));
dict.Add("foo", "bar");
Assert.That(dict.Values, Is.EquivalentTo(new[] { "value1", "value2", "value3", "bar" }));
dict.Remove("key2");
Assert.That(dict.Values, Is.EquivalentTo(new[] { "value1", "value3", "bar" }));
dict.Clear();
Assert.That(dict.Values, Is.Empty);
}
public void CopyToTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
var array = new KeyValuePair<string, string>[5];
dict.CopyTo(array, 0);
Assert.That(array[0], Is.EqualTo(new KeyValuePair<string, string>("key1", "value1")));
Assert.That(array[1], Is.EqualTo(new KeyValuePair<string, string>("key2", "value2")));
Assert.That(array[2], Is.EqualTo(new KeyValuePair<string, string>("key3", "value3")));
Assert.That(array[3], Is.EqualTo(new KeyValuePair<string, string>()));
Assert.That(array[4], Is.EqualTo(new KeyValuePair<string, string>()));
array = new KeyValuePair<string, string>[5];
dict.CopyTo(array, 1);
Assert.That(array[0], Is.EqualTo(new KeyValuePair<string, string>()));
Assert.That(array[1], Is.EqualTo(new KeyValuePair<string, string>("key1", "value1")));
Assert.That(array[2], Is.EqualTo(new KeyValuePair<string, string>("key2", "value2")));
Assert.That(array[3], Is.EqualTo(new KeyValuePair<string, string>("key3", "value3")));
Assert.That(array[4], Is.EqualTo(new KeyValuePair<string, string>()));
array = new KeyValuePair<string, string>[5];
Assert.Throws<ArgumentException>(() => dict.CopyTo(array, 3));
Assert.Throws<ArgumentException>(() => dict.CopyTo(array, 5));
Assert.Throws<ArgumentOutOfRangeException>(() => dict.CopyTo(array, -1));
Assert.Throws<ArgumentNullException>(() => dict.CopyTo(null, 0));
}
public void CacheRemovedEventTest()
{
var dict = new LRUCacheDictionary<string, string>();
dict["key1"] = "value1";
dict["key2"] = "value2";
dict["key3"] = "value3";
dict["key4"] = "value4";
// イベント設定
var removedList = new List<string>();
dict.CacheRemoved += (s, e) =>
{
removedList.Add(e.Item.Key);
};
// 2 個までに縮小
dict.TrimLimit = 2;
dict.Trim();
// 直近に参照された 3, 4 以外のアイテムに対してイベントが発生しているはず
Assert.That(removedList, Is.EquivalentTo(new[] { "key1", "key2" }));
}
public void ContainsKeyTest()
{
var dict = new LRUCacheDictionary<string, string>
{
{"key1", "value1"},
{"key2", "value2"},
{"key3", "value3"},
};
Assert.True(dict.ContainsKey("key1"));
Assert.True(dict.ContainsKey("key3"));
Assert.False(dict.ContainsKey("value1"));
Assert.False(dict.ContainsKey("hogehoge"));
}
