public void Produces_BindingNotifications()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data { Maximum = 5 };
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.Value));
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.Value), accessor);
var result = new List<object>();
validator.Subscribe(x => result.Add(x));
validator.SetValue(5, BindingPriority.LocalValue);
validator.SetValue(6, BindingPriority.LocalValue);
data.Maximum = 10;
data.Maximum = 5;
Assert.Equal(new[]
{
new BindingNotification(0),
new BindingNotification(5),
// Value is first signalled without an error as validation hasn't been updated.
new BindingNotification(6),
// Then the ErrorsChanged event is fired.
new BindingNotification(new Exception("Must be less than Maximum"), BindingErrorType.DataValidationError, 6),
// Maximum is changed to 10 so value is now valid.
new BindingNotification(6),
// And Maximum is changed back to 5.
new BindingNotification(new Exception("Must be less than Maximum"), BindingErrorType.DataValidationError, 6),
}, result);
}
public void Produces_BindingNotifications()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data {
Maximum = 5
};
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.Value));
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.Value), accessor);
var result = new List <object>();
validator.Subscribe(x => result.Add(x));
validator.SetValue(5, BindingPriority.LocalValue);
validator.SetValue(6, BindingPriority.LocalValue);
data.Maximum = 10;
data.Maximum = 5;
Assert.Equal(new[]
{
new BindingNotification(0),
new BindingNotification(5),
// Value is first signalled without an error as validation hasn't been updated.
new BindingNotification(6),
// Then the ErrorsChanged event is fired.
new BindingNotification(new Exception("Must be less than Maximum"), BindingErrorType.DataValidationError, 6),
// Maximum is changed to 10 so value is now valid.
new BindingNotification(6),
// And Maximum is changed back to 5.
new BindingNotification(new Exception("Must be less than Maximum"), BindingErrorType.DataValidationError, 6),
}, result);
}
public void Setting_Validating_Property_To_Invalid_Value_Returns_Failed_ValidationStatus()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data();
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.MustBePositive), _ => { });
IValidationStatus status = null;
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.MustBePositive), accessor, s => status = s);
validator.SetValue(-5, BindingPriority.LocalValue);
Assert.False(status.IsValid);
}
public void Setting_Non_Validating_Does_Not_Trigger_Validation()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data();
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.NonValidated), _ => { });
IValidationStatus status = null;
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.NonValidated), accessor, s => status = s);
validator.SetValue(5, BindingPriority.LocalValue);
Assert.Null(status);
}
public void Setting_Validating_Property_To_Valid_Value_Returns_Successful_ValidationStatus()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data();
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.MustBePositive), _ => { });
IValidationStatus status = null;
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.MustBePositive), accessor, s => status = s);
validator.SetValue(5, BindingPriority.LocalValue);
Assert.True(status.IsValid);
}
public void Setting_Non_Validating_Does_Not_Trigger_Validation()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data();
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.NonValidated), _ => { });
IValidationStatus status = null;
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.NonValidated), accessor, s => status = s);
validator.SetValue(5, BindingPriority.LocalValue);
Assert.Null(status);
}
public void Subscribes_And_Unsubscribes()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data { Maximum = 5 };
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.Value));
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.Value), accessor);
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
var sub = validator.Subscribe(_ => { });
Assert.Equal(1, data.ErrorsChangedSubscriptionCount);
sub.Dispose();
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
}
public void Subscribes_And_Unsubscribes()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data {
Maximum = 5
};
var accessor = inpcAccessorPlugin.Start(new WeakReference(data), nameof(data.Value));
var validator = validatorPlugin.Start(new WeakReference(data), nameof(data.Value), accessor);
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
validator.Subscribe(_ => { });
Assert.Equal(1, data.ErrorsChangedSubscriptionCount);
validator.Unsubscribe();
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
}
public void Subscribes_And_Unsubscribes()
{
var inpcAccessorPlugin = new InpcPropertyAccessorPlugin();
var validatorPlugin = new IndeiValidationPlugin();
var data = new Data {
Maximum = 5
};
var accessor = inpcAccessorPlugin.Start(new WeakReference <object>(data), nameof(data.Value));
var validator = validatorPlugin.Start(new WeakReference <object>(data), nameof(data.Value), accessor);
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
validator.Subscribe(_ => { });
Assert.Equal(1, data.ErrorsChangedSubscriptionCount);
validator.Unsubscribe();
// Forces WeakEvent compact
Dispatcher.UIThread.RunJobs();
Assert.Equal(0, data.ErrorsChangedSubscriptionCount);
}
