public void AssigningAValueInAMapUpdatesTheParent()
{
var mapReference = new ValueReferenceDefinitionBuilder()
.WithStartingValue(new Dictionary <string, ValueReferenceDefinition>()).Build().CreateValueReference(engine);
var map = mapReference.ValueAsMap();
int watchListenerCalled = 0;
mapReference.Watch(updatedMap =>
{
watchListenerCalled++;
});
map["foo"].Set(BigDouble.One);
Assert.AreEqual(3, watchListenerCalled);
}
public void WatchListenerReceivesMapValueWhenChildUpdates()
{
var mapReference = new ValueReferenceDefinitionBuilder()
.WithStartingValue(new Dictionary <string, ValueReferenceDefinition>()).Build().CreateValueReference(engine);
var map = mapReference.ValueAsMap();
int watchListenerCalled = 0;
mapReference.Watch(updatedMap =>
{
Assert.IsNotNull(updatedMap as IDictionary <string, ValueReference>);
watchListenerCalled++;
});
map["foo"].Set(BigDouble.One);
Assert.AreEqual(3, watchListenerCalled);
}
public void ChangingValueOfWatchedValueNotifiesListeners()
{
var valueReference = new ValueReferenceDefinitionBuilder().Build().CreateValueReference(engine);
int calls = 0;
valueReference.Watch(newValue =>
{
calls++;
if (calls == 1)
{
Assert.AreEqual(BigDouble.Zero, newValue);
}
else
{
Assert.AreEqual(BigDouble.One, newValue);
}
});
valueReference.Set(BigDouble.One);
Assert.AreEqual(2, calls);
}
public void WatchingForChangesReceivesCurrentValueImmediately()
{
var valueReference = new ValueReferenceDefinitionBuilder().Build().CreateValueReference(engine);
valueReference.Watch(newValue => Assert.AreEqual(BigDouble.Zero, newValue));
}
