private void SendMessage()
{
var changedMessage = new ExceptionThrownChangedMessage
{
Text = LastError
};
m_Bus.PublishAsync(changedMessage);
}
public void CanExecuteClearErrorCommand_ReturnsTrue_ForExceptionThrownIsNotEmpty()
{
// Arrange
var message = new ExceptionThrownChangedMessage
{
Text = "Text"
};
m_Sut.ExceptionThrownChangedHandler(message);
// Act
// Assert
Assert.True(m_Sut.CanExecuteClearErrorCommand());
}
public void ExceptionThrownChangedHandler_RaisesEventExceptionThrown_WhenCalled()
{
// Arrange
var changed = new TestNotifyPropertyChanged(m_Sut,
"ExceptionThrown");
var message = new ExceptionThrownChangedMessage
{
Text = "Text"
};
// Act
m_Sut.ExceptionThrownChangedHandler(message);
// Assert
Assert.True(changed.IsExpectedNotified);
}
public void IsClearErrorEnabled_ReturnsTrue_ForExceptionThrownIsNotEmpty()
{
// Arrange
var message = new ExceptionThrownChangedMessage
{
Text = "Text"
};
m_Sut.ExceptionThrownChangedHandler(message);
// Act
// Assert
Assert.True(m_Sut.IsClearErrorEnabled);
}
public void ExceptionThrownChangedHandler_SetsStatus_WhenCalled()
{
// Arrange
const string expected = "Text";
var message = new ExceptionThrownChangedMessage
{
Text = expected
};
// Act
m_Sut.ExceptionThrownChangedHandler(message);
// Assert
Assert.AreEqual(expected,
m_Sut.ExceptionThrown);
}
public void ExceptionThrownChangedHandler_SetsExceptionThrownToEmpty_WhenTextIsNull()
{
// Arrange
var message = new ExceptionThrownChangedMessage
{
Text = null
};
// Act
m_Sut.ExceptionThrownChangedHandler(message);
// Assert
Assert.AreEqual(string.Empty,
m_Sut.ExceptionThrown);
}
private void UpdateAndNotify(ExceptionThrownChangedMessage message)
{
ExceptionThrown = message.Text ?? string.Empty;
NotifyPropertyChanged("ExceptionThrown");
NotifyPropertyChanged("IsClearErrorEnabled");
m_CommandManager.InvalidateRequerySuggested();
}
internal void ExceptionThrownChangedHandler(ExceptionThrownChangedMessage message)
{
m_Dispatcher.BeginInvoke(() => UpdateAndNotify(message));
}
