public void AllReactionsInMappingAreTriggeredOnMatchingPropertyUpdates()
{
// Arrange
const string propertyName1 = "PropertyName1";
const string propertyName2 = "PropertyName2";
var updateReactionMock1 = new Mock <IUpdateReaction>();
var updateReactionMock2 = new Mock <IUpdateReaction>();
updateReactionMock1.Setup(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()));
updateReactionMock2.Setup(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()));
var mappingTable = new Dictionary <string, IEnumerable <IUpdateReaction> >
{
[propertyName1] = new[] { updateReactionMock1.Object },
[propertyName2] = new[] { updateReactionMock2.Object }
};
var mapping = new TestingUpdateReactionMapping(mappingTable);
var userPreferencesMock = new Mock <IUserPreferences>();
var collectionView = Mock.Of <ICollectionView>();
var manager = new UpdateReactionManager(mapping, userPreferencesMock.Object);
manager.Initialize(collectionView);
// Calling Initialize will invoke IUpdateReaction.UpdateCollection
// Reset calls so that it is possible to verify the number of times
// it is called as a result of raising PropertyChanged
updateReactionMock1.ResetCalls();
updateReactionMock2.ResetCalls();
// Act
userPreferencesMock.Raise(u => u.PropertyChanged += null,
new PropertyChangedEventArgs(propertyName1));
userPreferencesMock.Raise(u => u.PropertyChanged += null,
new PropertyChangedEventArgs(propertyName2));
// Assert
updateReactionMock1.Verify(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()),
Times.Exactly(1));
updateReactionMock2.Verify(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()),
Times.Exactly(1));
}
public void ReactionIsNotTriggeredIfCollectionViewIsNull()
{
// Arrange
const string propertyName = "PropertyName";
var updateReactionMock = new Mock <IUpdateReaction>();
updateReactionMock
.Setup(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()));
var mappingTable = new Dictionary <string, IEnumerable <IUpdateReaction> >
{
[propertyName] = new[] { updateReactionMock.Object }
};
var mapping = new TestingUpdateReactionMapping(mappingTable);
var userPreferencesMock = new Mock <IUserPreferences>();
var manager = new UpdateReactionManager(mapping, userPreferencesMock.Object);
manager.Initialize(null);
// Calling Initialize will invoke IUpdateReaction.UpdateCollection
// Reset calls so that it is possible to verify the number of times
// it is called as a result of raising PropertyChanged
updateReactionMock.ResetCalls();
// Act
userPreferencesMock.Raise(u => u.PropertyChanged += null,
new PropertyChangedEventArgs(propertyName));
// Assert
updateReactionMock.Verify(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()),
Times.Never);
}
public void ReactionInMappingIsNotTriggeredOnNonMatchingPropertyUpdate()
{
// Arrange
var updateReactionMock = new Mock <IUpdateReaction>();
updateReactionMock
.Setup(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()));
var mappingTable = new Dictionary <string, IEnumerable <IUpdateReaction> >
{
["MappedProperty"] = new[] { updateReactionMock.Object }
};
var mapping = new TestingUpdateReactionMapping(mappingTable);
var userPreferencesMock = new Mock <IUserPreferences>();
var collectionView = Mock.Of <ICollectionView>();
var manager = new UpdateReactionManager(mapping, userPreferencesMock.Object);
manager.Initialize(collectionView);
// Calling Initialize will invoke IUpdateReaction.UpdateCollection
// Reset calls so that it is possible to verify the number of times
// it is called as a result of raising PropertyChanged
updateReactionMock.Invocations.Clear();
// Act
userPreferencesMock.Raise(u => u.PropertyChanged += null,
new PropertyChangedEventArgs("UnmappedPropertyName"));
// Assert
updateReactionMock.Verify(u => u.UpdateCollection(
It.IsAny <ICollectionView>(),
It.IsAny <IUserPreferences>()),
Times.Never);
}
