public void PurgeUnusedImages_Remove_Only_Unused_Keys_And_Notify()
{
var target = new ProjectContainer();
int count = 0;
target.PropertyChanged += (sender, e) =>
{
count++;
};
var key1 = ProjectContainer.ImageEntryNamePrefix + "image1.jpg";
var key2 = ProjectContainer.ImageEntryNamePrefix + "image2.jpg";
var key3 = ProjectContainer.ImageEntryNamePrefix + "image3.jpg";
target.AddImage(key1, new byte[] { });
target.AddImage(key2, new byte[] { });
target.AddImage(key3, new byte[] { });
var used = ImmutableHashSet.Create(key2);
target.PurgeUnusedImages(used);
Assert.Equal(key2, target.Keys.First().Key);
Assert.Contains(target.Keys, item => item.Key == key2);
Assert.Equal(4, count);
}
public void PurgeUnusedImages_Remove_All_Keys_And_Notify()
{
var target = new ProjectContainer();
int count = 0;
target.PropertyChanged += (sender, e) =>
{
count++;
};
var key1 = ProjectContainer.ImageEntryNamePrefix + "image1.jpg";
var key2 = ProjectContainer.ImageEntryNamePrefix + "image2.jpg";
var key3 = ProjectContainer.ImageEntryNamePrefix + "image3.jpg";
target.AddImage(key1, new byte[] { });
target.AddImage(key2, new byte[] { });
target.AddImage(key3, new byte[] { });
var used = Enumerable.Empty <string>().ToImmutableHashSet();
target.PurgeUnusedImages(used);
Assert.Empty(target.Keys);
Assert.Equal(4, count);
}