public void CoverImageSourceGetter_ForExistingCoverImage_ReturnsImageSourceWithCoverFilePath()
{
// Arrange
var disc = new DiscModel().MakeActive();
disc.AddImage(new DiscImageModel {
ImageType = DiscImageType.Cover, ContentUri = new Uri("file://Some-Existing-Image.jpg")
});
var fileSystemFacade = new Mock <IFileSystemFacade>();
fileSystemFacade.Setup(x => x.FileExists("file://Some-Existing-Image.jpg")).Returns(true);
var mocker = new AutoMocker();
mocker.Use(fileSystemFacade);
var target = mocker.CreateInstance <DiscImageViewModel>();
Messenger.Default.Send(new ActiveDiscChangedEventArgs(disc));
// Act
var currentImageUri = target.CoverImageSource;
// Assert
currentImageUri.Should().BeEquivalentTo(DiscImageSource.ForImage(new Uri("file://Some-Existing-Image.jpg")));
}
public void ActiveDiscChangedEventHandler_RaisesPropertyChangedEventForCoverImageSource()
{
// Arrange
var disc1 = new DiscModel().MakeActive();
disc1.AddImage(new DiscImageModel {
ImageType = DiscImageType.Cover, ContentUri = new Uri("file://image1.jpg")
});
var disc2 = new DiscModel().MakeActive();
disc2.AddImage(new DiscImageModel {
ImageType = DiscImageType.Cover, ContentUri = new Uri("file://image2.jpg")
});
var fileSystemFacade = new Mock <IFileSystemFacade>();
fileSystemFacade.Setup(x => x.FileExists(It.IsAny <string>())).Returns(true);
var mocker = new AutoMocker();
mocker.Use(fileSystemFacade);
var target = mocker.CreateInstance <DiscImageViewModel>();
Messenger.Default.Send(new ActiveDiscChangedEventArgs(disc1));
var propertyChangedEvents = new List <PropertyChangedEventArgs>();
target.PropertyChanged += (_, e) => propertyChangedEvents.Add(e);
// Act
Messenger.Default.Send(new ActiveDiscChangedEventArgs(disc2));
// Assert
propertyChangedEvents.Select(e => e.PropertyName).Should().Contain(nameof(DiscImageViewModel.CoverImageSource));
target.CoverImageSource.Should().BeEquivalentTo(DiscImageSource.ForImage(new Uri("file://image2.jpg")));
}