public void Clear_removes_all_entries()
{
var cache = new MruCache <int, string>(capacity: 3);
cache.Add(1, "one");
cache.Add(2, "two");
cache.Add(3, "three");
cache.Clear();
Assert.False(cache.TryGetValue(1, out _));
Assert.False(cache.TryGetValue(2, out _));
Assert.False(cache.TryGetValue(3, out _));
}
public void TryRemove_removes_existing_entries()
{
var cache = new MruCache <int, string>(capacity: 3);
cache.Add(1, "one");
cache.Add(2, "two");
cache.Add(3, "three");
Assert.True(cache.TryRemove(1, out var removed));
Assert.AreEqual("one", removed);
Assert.False(cache.TryGetValue(1, out _));
Assert.True(cache.TryGetValue(2, out _));
Assert.True(cache.TryGetValue(3, out _));
}
public void TryRemove_returns_false_for_unknown_entry()
{
var cache = new MruCache <int, string>(capacity: 3);
cache.Add(1, "one");
Assert.False(cache.TryRemove(2, out var removed));
Assert.Null(removed);
}
public void Add_expires_last_used_entry_when_at_capacity()
{
var cache = new MruCache <int, string>(capacity: 3);
cache.Add(1, "one");
cache.Add(2, "two");
cache.Add(3, "three");
Assert.True(cache.TryGetValue(1, out _));
Assert.True(cache.TryGetValue(2, out _));
Assert.True(cache.TryGetValue(3, out _));
cache.Add(4, "four");
Assert.False(cache.TryGetValue(1, out _));
Assert.True(cache.TryGetValue(2, out _));
Assert.True(cache.TryGetValue(3, out _));
Assert.True(cache.TryGetValue(4, out _));
}
public void TryGetValue_renews_lifespan_of_entry()
{
var cache = new MruCache <int, string>(capacity: 3);
cache.Add(1, "one");
cache.Add(2, "two");
cache.Add(3, "three");
Assert.True(cache.TryGetValue(3, out _));
Assert.True(cache.TryGetValue(2, out _));
Assert.True(cache.TryGetValue(1, out _));
cache.Add(4, "four");
Assert.True(cache.TryGetValue(1, out _));
Assert.True(cache.TryGetValue(2, out _));
Assert.False(cache.TryGetValue(3, out _));
Assert.True(cache.TryGetValue(4, out _));
}
public void when_TryGetValue_called_with_nonexistent_key__should_return_false()
{
var mruCache = new MruCache<ValueWrapper<int>, object>(12);
object added = new object();
var key = new ValueWrapper<int>(0);
mruCache.Add(key, added);
object res;
Assert.IsFalse(mruCache.TryGetValue(new ValueWrapper<int>(1), out res));
Assert.IsNull(res);
}
public void when_TryGetValue_called_with_existing_key__should_return_what_it_was_provided()
{
var mruCache = new MruCache<ValueWrapper<int>, object>(12);
object added = new object();
var key = new ValueWrapper<int>(0);
mruCache.Add(key, added);
object res;
Assert.IsTrue(mruCache.TryGetValue(new ValueWrapper<int>(0), out res));
Assert.AreEqual(added, res);
}
private void AddCallAndUpdateEaCache(string destinationUri, Call call)
{
_activeCalls.Add(call.Id, call);
CallStateChangedEventArgs ea;
if (!_eaCache.TryGetValue(new ValueWrapper <int>(call.Id), out ea))
{
ea = new CallStateChangedEventArgs {
Id = call.Id
};
_eaCache.Add(new ValueWrapper <int>(call.Id), ea);
}
ea.DestinationUri = destinationUri;
}
public void when_TryGetValue_called_with_nonexistent_key__should_return_false()
{
var mruCache = new MruCache <ValueWrapper <int>, object>(12);
object added = new object();
var key = new ValueWrapper <int>(0);
mruCache.Add(key, added);
object res;
Assert.IsFalse(mruCache.TryGetValue(new ValueWrapper <int>(1), out res));
Assert.IsNull(res);
}
public void when_TryGetValue_called_with_existing_key__should_return_what_it_was_provided()
{
var mruCache = new MruCache <ValueWrapper <int>, object>(12);
object added = new object();
var key = new ValueWrapper <int>(0);
mruCache.Add(key, added);
object res;
Assert.IsTrue(mruCache.TryGetValue(new ValueWrapper <int>(0), out res));
Assert.AreEqual(added, res);
}
public static Func <object[], TResult> GetFunc <TResult>
(
CodeActivityMetadata metadata
, ConstructorInfo constructorInfo
, MruCache <ConstructorInfo, Func <object[], TResult> > cache
, ReaderWriterLockSlim locker
)
{
Func <object[], TResult> func = null;
if (constructorInfo != null)
{
locker.EnterWriteLock();
try
{
cache.TryGetValue(constructorInfo, out func);
}
finally
{
locker.ExitWriteLock();
}
}
if (func == null)
{
func = GetFunc <TResult>(metadata, constructorInfo);
if (constructorInfo != null)
{
locker.EnterWriteLock();
try
{
//MruCache has on ContainsKey(), so we use TryGetValue()
Func <object[], TResult> result = null;
if (!cache.TryGetValue(constructorInfo, out result))
{
cache.Add(constructorInfo, func);
}
else
{
func = result;
}
}
finally
{
locker.ExitWriteLock();
}
}
}
return(func);
}
internal static Func <object, object[], object> GetFunc(CodeActivityMetadata metadata, MethodInfo methodInfo,
MruCache <MethodInfo, Func <object, object[], object> > cache, ReaderWriterLockSlim locker, bool valueTypeReference = false)
{
Func <object, object[], object> func = null;
locker.EnterWriteLock();
try
{
cache.TryGetValue(methodInfo, out func);
}
finally
{
locker.ExitWriteLock();
}
if (func == null)
{
func = GetFunc(metadata, methodInfo, valueTypeReference);
locker.EnterWriteLock();
try
{
//MruCache has on ContainsKey(), so we use TryGetValue()
Func <object, object[], object> result = null;
if (!cache.TryGetValue(methodInfo, out result))
{
cache.Add(methodInfo, func);
}
else
{
func = result;
}
}
finally
{
locker.ExitWriteLock();
}
}
return(func);
}
