public static void Test_ReferenceDictionary_Constructor_Size([Range(1, 20)] int size)
{
//arrange
var map = new EngineObjectReferenceDictionary <IEngineObject, object>(size);
//act
FieldInfo info = map.GetType().BaseType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(x => x.Name.Contains("bucket"));
//assert
//This will use reflection to get the collection size under the hood.
Assert.AreEqual(GetPrime(size), ((int[])info.GetValue(map)).Count());
}
public static void Test_ReferenceDictionary_Register()
{
//arrange
IEngineObject testEngineObject = SetupEquatableIsEqualToSelfInstance <IEngineObject>();
object testObject = new object();
var map = new EngineObjectReferenceDictionary <IEngineObject, object>();
//act
bool result = map.Register(testEngineObject, testObject);
//assert
Assert.IsTrue(result);
Assert.IsTrue(map.ContainsKey(testEngineObject));
Assert.AreEqual(testObject, map[testEngineObject]);
//not in the dictionary so it should throw
Assert.Throws <KeyNotFoundException>(() => { var o = map[Mock.Of <IEngineObject>()]; });
Assert.IsFalse(map.ContainsKey(Mock.Of <IEngineObject>())); //shouldn't contain some new key value. Might fail due to Moq setup.
}
public static void Test_ReferenceDictionary_TryLookup()
{
//arrange
IEngineObject testEngineObject = SetupEquatableIsEqualToSelfInstance <IEngineObject>();
object testObject = new object();
var map = new EngineObjectReferenceDictionary <IEngineObject, object>();
//act
map.Register(testEngineObject, testObject);
//assert
Assert.AreEqual(testObject, map.TryLookup(testEngineObject));
Assert.AreNotEqual(testObject, map.TryLookup(Mock.Of <IEngineObject>()));
Assert.IsNull(map.TryLookup(Mock.Of <IEngineObject>()));
Assert.Throws <ArgumentNullException>(() => map.TryLookup(null));
Assert.Throws <ArgumentNullException>(() => map.Register(null, testObject));
Assert.Throws <ArgumentNullException>(() => map.Register(testEngineObject, null));
Assert.Throws <ArgumentNullException>(() => map.Register(null, null));
}
public static void Test_ReferenceDictionary_Unregister()
{
//arrange
IEngineObject testEngineObject = SetupEquatableIsEqualToSelfInstance <IEngineObject>();
object testObject = new object();
var map = new EngineObjectReferenceDictionary <IEngineObject, object>();
//act
map.Register(testEngineObject, testObject);
var result = map.TryUnregister(testEngineObject);
var failedResult = map.TryUnregister(testEngineObject);
//assert
Assert.IsTrue(result.Success);
Assert.AreEqual(result.Value, testObject);
//check the intentional failed result
Assert.IsFalse(failedResult.Success);
Assert.IsNull(failedResult.Value);
}