public void TestDynamicProxyObservability()
{
// SomeDynamic inherits from System.Dynamic.DynamicObject
dynamic d = new SomeObj().ToDynamicObservable();
int notificationCount = 0;
Queue<object[]> expected = new Queue<object[]>();
expected.Enqueue(new object[] { d, "IntProp", 0, 10 });
expected.Enqueue(new object[] { d, "IntProp", 10, 20 });
(d as IObjectObservable).PropertyChanged2 += (source, propertyName, oldValue, newValue) =>
{
var expectedResult = expected.Dequeue();
Assert.AreEqual(expectedResult[0], source);
Assert.AreEqual(expectedResult[1], propertyName);
Assert.AreEqual(expectedResult[2], oldValue);
Assert.AreEqual(expectedResult[3], newValue);
notificationCount++;
};
d.IntProp = 10;
d.IntProp = 20;
try
{
d.DoesNotExist = "Should throw";
Assert.Fail("I should not be able to extend this object");
}
catch (RuntimeBinderException ex) { }
Assert.AreEqual(2, notificationCount);
Assert.AreEqual(20, d.IntProp);
}
public void TestTransactionPositive()
{
var obj = new SomeObj();
obj.IntProp = 20;
using (var context = obj.ForgivableScope())
{
context.Target.IntProp = 50;
context.Complete();
}
Assert.AreEqual(50, obj.IntProp);
}
public void TestProxiedExtendableObservable()
{
var poco = new SomeObj();
var extendedObserver = poco.GetObservableProxy();
var token = extendedObserver.SetExpectedChanges(
new Change(poco, "IntProp", 0, 1),
new Change(poco, "IntProp", 1, 2));
poco.SetProperty("IntProp", 1);
poco.SetProperty("IntProp", 2);
Assert.AreEqual(2, poco.IntProp);
token.ValidateAllNotificationsHappened();
}
public void TestBasicExtensibility()
{
var extendable = new SomeObj().Dynamify();
extendable.NewProperty = 10;
extendable.IntProp = 10;
// Validate an extended property
Assert.AreEqual(10, extendable.NewProperty);
Assert.AreEqual(10, (extendable.Unwrap() as object).GetProperty("NewProperty"));
// Validate a normal property
Assert.AreEqual(10, extendable.IntProp);
Assert.AreEqual(10, (extendable.Unwrap() as object).GetProperty("IntProp"));
Assert.AreEqual(10, (extendable.Unwrap() as SomeObj).IntProp);
}
public void TestThatExtendableIsAlsoObservable()
{
var extendable = new SomeObj().Dynamify();
var token = (extendable as IObjectObservable).SetExpectedChanges(
new Change(extendable, "First", null, "Adam"),
new Change(extendable, "First", "Adam", "Joe"),
new Change(extendable, "IntProp", 0, 10));
extendable.First = "Adam";
extendable.First = "Joe";
Assert.AreEqual("Joe", (extendable.Unwrap() as object).GetProperty("First"));
extendable.IntProp = 10;
token.ValidateAllNotificationsHappened();
}
public void TestTransactionNegative()
{
var obj = new SomeObj();
obj.IntProp = 20;
try
{
using (var context = obj.ForgivableScope())
{
context.Target.IntProp = 50;
throw new InternalTestFailureException();
context.Complete();
}
}
catch (InternalTestFailureException) { }
Assert.AreEqual(20, obj.IntProp);
}
public void TestCollectionObservable()
{
var obj = new SomeObj().Observable();
obj.IntegerList = new ObservableList<int>();
int counter = 0;
(obj as IObjectObservable).PropertyChanged+=new PropertyChangedEventHandler((a,b)=>
{
counter++;
});
Assert.AreEqual(0, obj.IntegerList.Count);
obj.IntegerList.Add(1);
Assert.AreEqual(1, obj.IntegerList.Count);
Assert.AreEqual(1, obj.IntegerList[0]);
Assert.AreEqual(1, counter);
}
public void TestRedo()
{
ForgivenessContext forgiver;
var obj = new SomeObj().Forgivable(out forgiver);
obj.IntProp = 10;
obj.IntProp = 20;
Assert.AreEqual(20, obj.IntProp);
Assert.IsFalse(forgiver.CanRedo);
forgiver.Undo();
Assert.AreEqual(10, obj.IntProp);
Assert.IsTrue(forgiver.CanRedo);
forgiver.Redo();
Assert.AreEqual(20, obj.IntProp);
}
public void TestUndo()
{
ForgivenessContext forgiver;
var obj = new SomeObj().Forgivable(out forgiver);
Assert.IsFalse(forgiver.CanUndo);
Assert.IsFalse(forgiver.CanRedo);
for (int i = 0; i < 10; i++)
{
obj.IntProp = i;
Assert.IsTrue(obj.IntProp == i);
Assert.IsTrue(forgiver.CanUndo);
Assert.IsFalse(forgiver.CanRedo);
}
for (int i = 9; i >= 0; i--)
{
Assert.IsTrue(obj.IntProp == i);
Assert.IsTrue(forgiver.CanUndo);
forgiver.Undo();
Assert.IsTrue(forgiver.CanRedo);
}
}
public void TestPoco()
{
var obj = new SomeObj().Observable();
Assert.IsTrue(obj is SomeObj);
bool observer1Notified = false, observer2Notified = false;
(obj as IObjectObservable).PropertyChanged2 += (source, propertyName, oldValue, newValue) =>
{
Assert.AreEqual(0, oldValue);
Assert.AreEqual(10, newValue);
Assert.AreEqual("IntProp", propertyName);
Assert.IsTrue(source is SomeObj);
Assert.AreEqual((source as SomeObj).IntProp, newValue);
observer1Notified = true;
};
// Add observers with the classic, well supported INotifyPropertyChanged mechanism
(obj as INotifyPropertyChanged).PropertyChanged += (source, args) =>
{
Assert.IsTrue(source is SomeObj);
Assert.AreEqual(10, (source as SomeObj).IntProp);
Assert.AreEqual("IntProp", args.PropertyName);
observer2Notified = true;
};
obj.IntProp = 10;
Assert.IsTrue(observer1Notified);
Assert.IsTrue(observer2Notified);
// You can always unwrap the proxy if needed
var unwrapped = (obj as IObjectObservable).Wrapped as SomeObj;
Assert.IsNotNull(unwrapped);
}
public void TestNotificationSuppression()
{
var obj = new SomeObj().Observable();
(obj as IObjectObservable).SetExpectedChanges(
new Change(obj, "IntProp", 0, 10),
new Change(obj, "IntProp", 10, 20));
(obj as IObjectObservable).SuppressNonChanges = true;
// This should fire an event
obj.IntProp = 10;
// This should not fire an event
obj.IntProp = 10;
// This should fire an event
obj.IntProp = 20;
}