public void BindNativeProperty_only_propagates_changed_values()
{
var value = new Subject <int>();
var mountLocation = new MountLocation.Mutable {
IsRooted = Observable.Return(true)
};
int lastUpdatedValue = -1;
int updateCount = 0;
mountLocation.BindNativeProperty(
new PollingDispatcher(Thread.CurrentThread),
string.Empty,
value,
v =>
{
updateCount++;
lastUpdatedValue = v;
});
value.OnNext(1337);
Assert.That(lastUpdatedValue, Is.EqualTo(1337));
Assert.That(updateCount, Is.EqualTo(1));
value.OnNext(1337);
Assert.That(updateCount, Is.EqualTo(1));
value.OnNext(200);
Assert.That(lastUpdatedValue, Is.EqualTo(200));
Assert.That(updateCount, Is.EqualTo(2));
}
public void BindNativeProperty_invokes_update_action_while_is_rooted_is_true()
{
var isRooted = new BehaviorSubject <bool>(false);
var value = new BehaviorSubject <int>(1337);
var mountLocation = new MountLocation.Mutable {
IsRooted = isRooted
};
int lastUpdatedValue = -1;
mountLocation.BindNativeProperty(
new PollingDispatcher(Thread.CurrentThread),
string.Empty,
value,
v => lastUpdatedValue = v);
Assert.That(value.HasObservers, Is.False);
isRooted.OnNext(true);
Assert.That(value.HasObservers, Is.True);
Assert.That(lastUpdatedValue, Is.EqualTo(1337));
isRooted.OnNext(false);
Assert.That(value.HasObservers, Is.False);
}
