public void Binding_OnBindingComplete_Invoke_CallsBindingComplete(BindingCompleteEventArgs eventArgs)
{
var binding = new SubBinding("propertyName", new object(), "dataMember");
// No handler.
binding.OnBindingComplete(eventArgs);
// Handler.
int callCount = 0;
BindingCompleteEventHandler handler = (sender, e) =>
{
Assert.Equal(binding, sender);
Assert.Same(eventArgs, e);
callCount++;
};
binding.BindingComplete += handler;
binding.OnBindingComplete(eventArgs);
Assert.Equal(1, callCount);
// Should not call if the handler is removed.
binding.BindingComplete -= handler;
binding.OnBindingComplete(eventArgs);
Assert.Equal(1, callCount);
}
public void Binding_OnBindingComplete_InvokeInsideBindingComplete_DoesNotCallBindingComplete(BindingCompleteEventArgs eventArgs)
{
var binding = new SubBinding("propertyName", new object(), "dataMember");
int callCount = 0;
BindingCompleteEventHandler handler = (sender, e) =>
{
Assert.Equal(binding, sender);
Assert.Same(eventArgs, e);
callCount++;
binding.OnBindingComplete(e);
};
binding.BindingComplete += handler;
binding.OnBindingComplete(eventArgs);
Assert.Equal(1, callCount);
}
public void Binding_OnParse_Invoke_CallsParse(bool formattingEnabled, ConvertEventArgs eventArgs, object expectedValue)
{
var binding = new SubBinding("propertyName", new object(), "dataMember")
{
FormattingEnabled = formattingEnabled
};
// No handler.
object oldValue = eventArgs?.Value;
binding.OnParse(eventArgs);
Assert.Equal(expectedValue, eventArgs?.Value);
// Handler.
int callCount = 0;
ConvertEventHandler handler = (sender, e) =>
{
Assert.Equal(binding, sender);
Assert.Same(eventArgs, e);
callCount++;
};
binding.Parse += handler;
if (eventArgs != null)
{
eventArgs.Value = oldValue;
}
binding.OnParse(eventArgs);
Assert.Equal(expectedValue, eventArgs?.Value);
Assert.Equal(1, callCount);
// Should not call if the handler is removed.
binding.Parse -= handler;
if (eventArgs != null)
{
eventArgs.Value = oldValue;
}
binding.OnParse(eventArgs);
Assert.Equal(expectedValue, eventArgs?.Value);
Assert.Equal(1, callCount);
}
public void Binding_OnBindingComplete_ThrowsNonCriticalException_SetsCancelToTrue(BindingCompleteEventArgs eventArgs, Exception exception)
{
var binding = new SubBinding("propertyName", new object(), "dataMember");
int callCount = 0;
BindingCompleteEventHandler handler = (sender, e) =>
{
Assert.Equal(binding, sender);
Assert.Same(eventArgs, e);
callCount++;
throw exception;
};
binding.BindingComplete += handler;
binding.OnBindingComplete(eventArgs);
if (eventArgs != null)
{
Assert.True(eventArgs.Cancel);
}
Assert.Equal(1, callCount);
}
