public void PlaylistChangedEventHandler_IfDiscSongListIsSelected_DoesNotRaiseActiveDiscChangedEvent()
{
// Arrange
var mocker = new AutoMocker();
// Mocking SelectedDisc for LibraryExplorer so that we could catch mistaken set of ActiveDisc to different value.
mocker.GetMock <ILibraryExplorerViewModel>()
.Setup(x => x.SelectedDisc).Returns(new DiscModel());
var target = mocker.CreateInstance <SongListTabViewModel>();
target.SwitchToDiscSongListCommand.Execute(null);
ActiveDiscChangedEventArgs activeDiscChangedEventArgs = null;
Messenger.Default.Register <ActiveDiscChangedEventArgs>(this, e => e.RegisterEvent(ref activeDiscChangedEventArgs));
// Act
Messenger.Default.Send(new PlaylistChangedEventArgs(Enumerable.Empty <SongModel>(), null, null));
// Assert
activeDiscChangedEventArgs.Should().BeNull();
}
public void SwitchToDiscSongListCommand_IfSongListIsChanged_RaisesActiveDiscChangedEventForSelectedDisc()
{
// Arrange
var selectedDisc = new DiscModel();
var mocker = new AutoMocker();
mocker.GetMock <ILibraryExplorerViewModel>()
.Setup(x => x.SelectedDisc).Returns(selectedDisc);
var target = mocker.CreateInstance <SongListTabViewModel>();
target.SwitchToPlaylistCommand.Execute(null);
ActiveDiscChangedEventArgs activeDiscChangedEventArgs = null;
Messenger.Default.Register <ActiveDiscChangedEventArgs>(this, e => e.RegisterEvent(ref activeDiscChangedEventArgs));
// Act
target.SwitchToDiscSongListCommand.Execute(null);
// Assert
activeDiscChangedEventArgs.Should().NotBeNull();
activeDiscChangedEventArgs.Disc.Should().Be(selectedDisc);
}
public void PlaylistChangedEventHandler_IfPlaylistIsSelected_RaisesActiveDiscChangedEventForCurrentPlaylistDisc()
{
// Arrange
var currentDisc = new DiscModel();
var mocker = new AutoMocker();
var target = mocker.CreateInstance <SongListTabViewModel>();
target.SwitchToPlaylistCommand.Execute(null);
// We mock CurrentDisc property after switching to Playlist.
// Otherwise value of ActiveDisc will be the same and no event will be sent.
mocker.GetMock <IPlaylistViewModel>()
.Setup(x => x.CurrentDisc).Returns(currentDisc);
ActiveDiscChangedEventArgs activeDiscChangedEventArgs = null;
Messenger.Default.Register <ActiveDiscChangedEventArgs>(this, e => e.RegisterEvent(ref activeDiscChangedEventArgs));
// Act
Messenger.Default.Send(new PlaylistChangedEventArgs(Enumerable.Empty <SongModel>(), null, null));
// Assert
activeDiscChangedEventArgs.Should().NotBeNull();
activeDiscChangedEventArgs.Disc.Should().Be(currentDisc);
}