public void Subscription_MismatchingPropertyChanged_DoesNotInvokeHandler()
{
TestDerivedObject test = new TestDerivedObject();
bool called = false;
test.SubscribeToPropertyChanged(x => x.ValueProperty, x => called = true);
test.ObjectProperty = new object();
Assert.IsFalse(called, "SubscribeToPropertyChanged should not invoke handler when other properties change");
}
public void Subscription_MatchingPropertyChanged_InvokesHandler()
{
TestDerivedObject test = new TestDerivedObject();
bool called = false;
test.SubscribeToPropertyChanged(x => x.ValueProperty, x => called = true);
test.ValueProperty = 13;
Assert.IsTrue(called, "SubscribeToPropertyChanged should invoke handler when property changes");
}
private TestObject ProcessTestObjectForNamedCodeAsserter(out TestDerivedObject derivedObj)
{
TestObject testObj = new TestObject();
testObj.FirstName = "manish";
derivedObj = new TestDerivedObject();
derivedObj.FirstName = "derived";
derivedObj.MiddleInitial = "m";
return(testObj);
}
private TestObject ProcessMixedAsserters(
[CodeAsserter] out TestDerivedObject derivedObject)
{
TestObject testObj = new TestObject();
testObj.FirstName = "manish";
derivedObject = new TestDerivedObject();
derivedObject.FirstName = "derived";
derivedObject.MiddleInitial = "m";
return(testObj);
}
public void Subscription_ReturnsUnsubscribableDelegate()
{
TestDerivedObject test = new TestDerivedObject();
bool called = false;
var unsubscribe = test.SubscribeToPropertyChanged(x => x.ValueProperty, x => called = true);
test.PropertyChanged -= unsubscribe;
test.ValueProperty = 13;
Assert.IsFalse(called, "SubscribeToPropertyChanged should not invoke handler when unsubscribed");
}
public void OnItemsPropertyChanged_InvokesHandler_WithCorrectPropertyName()
{
TestDerivedObject test = new TestDerivedObject();
bool called = false;
test.PropertyChanged += (_, x) => { if (x.PropertyName == "Items[]")
{
called = true;
}
};
test.RaiseItems();
Assert.IsTrue(called, "OnItemsPropertyChanged should invoke handler with property name 'Items[]'");
}
public void TestDerivedSubscription()
{
TestDerivedObject test = new TestDerivedObject();
bool called = false;
// Ensure the PropertyChangedEventHandler.Raise extension method will not fail when its "this" parameter is null
test.ObjectProperty = new object();
test.SubscribeToPropertyChanged(x => x.ValueProperty, x => called = true);
Assert.AreEqual(false, called);
test.ObjectProperty = new object();
Assert.AreEqual(false, called);
test.ValueProperty = 13;
Assert.AreEqual(true, called);
}
private TestObject ProcessMultipleTestObjects(TestObject parentObj, TestObject baseChildObj, TestDerivedObject derivedChildObj)
{
parentObj.Id = 100;
parentObj.Child = baseChildObj;
baseChildObj.Child = derivedChildObj;
return(parentObj);
}
private void ProcessMixedDataProviders(TestObject testObject,
[CodeDataProvider] TestDerivedObject derivedObject)
{
Assert.IsNotNull(testObject);
Assert.IsNotNull(derivedObject);
}
private void ProcessTestObjectFromNamedMethod(TestObject testObject, TestDerivedObject derivedObject)
{
Assert.IsNotNull(testObject);
Assert.IsNotNull(derivedObject);
}
private TestObject GetMultipleTestObjects(TestObject parentObj, out TestDerivedObject derivedChildObj)
{
derivedChildObj = (TestDerivedObject)parentObj.Child;
return(parentObj);
}
