public void AllowsNullValues()
{
var observableDictionary = new FastObservableDictionary <int, object>();
observableDictionary.Add(1, null);
Assert.IsNull(observableDictionary[1]);
}
public void ReturnsValueFromValidKey()
{
var observableDictionary = new FastObservableDictionary <int, int>
{
{
1, 1
}
};
var success = observableDictionary.TryGetValue(1, out int value);
Assert.IsTrue(success && value == 1);
}
public void ReturnsCustomComparer()
{
var customComparer = StringComparer.OrdinalIgnoreCase;
var observableDictionary = new FastObservableDictionary <string, int>(customComparer)
{
{
"1", 1
}
};
Assert.AreEqual(customComparer, observableDictionary.Comparer);
}
public void ReturnsNullForInvalidTypedObject()
{
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 1
}
};
var result = observableDictionary[(object)"1"];
Assert.IsNull(result);
}
public void ReturnsDefaultComparer()
{
var defaultComparer = EqualityComparer <int> .Default;
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 1
}
};
Assert.AreEqual(defaultComparer, observableDictionary.Comparer);
}
public void ContainsObjectInvalidTypeFalse()
{
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 2
}
};
var result = observableDictionary.Contains((object)"1");
Assert.IsFalse(result);
}
public void ContainsKeyFalse()
{
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 1
}
};
var success = observableDictionary.ContainsKey(2);
Assert.IsFalse(success);
}
public void ContainsObjectTrue()
{
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 2
}
};
var result = observableDictionary.Contains((object)1);
Assert.IsTrue(result);
}
public void ContainsKvpSuccess()
{
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 2
}
};
var result = observableDictionary.Contains(new KeyValuePair <int, int>(1, 2));
Assert.IsTrue(result);
}
public void ReturnsDefaultFromInvalidKey()
{
var observableDictionary = new FastObservableDictionary <int, int>
{
{
1, 1
}
};
var success = observableDictionary.TryGetValue(2, out int value);
Assert.IsTrue(!success && value == 0);
}
public void RaiseEventWhileRemovingStronglyTyped()
{
var counter = 1;
var observableDictionary = new FastObservableDictionary <int, int>
{
{
1, 1
}
};
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => counter--;
observableDictionary.Remove(1);
Assert.AreEqual(0, counter);
}
public void RaisesEventWhileClearing()
{
bool wasRaised = false;
var observableDictionary = new FastObservableDictionary <int, int>
{
{
1, 1
}
};
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => wasRaised = args.Action == NotifyCollectionChangedAction.Reset;
observableDictionary.Clear();
Assert.IsTrue(wasRaised && observableDictionary.Count == 0);
}
public void RaisesEventWhileUpdatingStronglyTyped()
{
var isUpdated = false;
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 1
}
};
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => isUpdated = args.Action == NotifyCollectionChangedAction.Replace;
observableDictionary[1] = 3;
Assert.IsTrue(isUpdated);
}
public void PopulatesKvpArray()
{
KeyValuePair <int, int>[] arr = new KeyValuePair <int, int> [2];
var observableDictionary = new FastObservableDictionary <int, int>()
{
{
1, 1
},
{
2, 2
}
};
observableDictionary.CopyTo(arr, 0);
Assert.IsTrue(arr.Length == 2);
}
public void RaisesEventWhileAddingStronglyTyped()
{
var counter = 0;
var observableDictionary = new FastObservableDictionary <int, int>();
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => counter++;
observableDictionary[1] = 1;
Assert.AreEqual(1, counter);
observableDictionary[2] = 2;
Assert.AreEqual(2, counter);
observableDictionary[3] = 3;
Assert.AreEqual(3, counter);
observableDictionary[4] = 4;
Assert.AreEqual(4, counter);
}
public void RaisesEventWhileAddingObject()
{
var counter = 0;
var observableDictionary = new FastObservableDictionary <int, int>();
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => counter++;
observableDictionary.Add((object)1, (object)1);
Assert.AreEqual(1, counter);
observableDictionary.Add((object)2, (object)2);
Assert.AreEqual(2, counter);
observableDictionary.Add((object)3, (object)3);
Assert.AreEqual(3, counter);
observableDictionary.Add((object)4, (object)4);
Assert.AreEqual(4, counter);
}
public void RaisesEventWhileAddingKvp()
{
var counter = 0;
var observableDictionary = new FastObservableDictionary <int, int>();
observableDictionary.AutomaticallyDispatchChangeNotifications = false;
observableDictionary.CollectionChanged += (sender, args) => counter++;
observableDictionary.Add(new KeyValuePair <int, int>(1, 1));
Assert.AreEqual(1, counter);
observableDictionary.Add(new KeyValuePair <int, int>(2, 2));
Assert.AreEqual(2, counter);
observableDictionary.Add(new KeyValuePair <int, int>(3, 3));
Assert.AreEqual(3, counter);
observableDictionary.Add(new KeyValuePair <int, int>(4, 4));
Assert.AreEqual(4, counter);
}
public void ThrowsArgumentNullExceptionForNullKey()
{
var observableDictionary = new FastObservableDictionary <object, int>();
Assert.That(() => observableDictionary.Add(null, 1), Throws.ArgumentNullException);
}
public void ThrowsArgumentNullExceptionForAddObject()
{
var observableDictionary = new FastObservableDictionary <int, int>();
Assert.That(() => observableDictionary.Add(1, null), Throws.ArgumentNullException);
}
public void ThrowsInvalidCastExceptionForAddObject()
{
var observableDictionary = new FastObservableDictionary <int, int>();
Assert.That(() => observableDictionary.Add((object)"1", 1), Throws.TypeOf <InvalidCastException>());
}
