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"));
}