public void RemoveAnnotation_KeyDoesNotExist()
{
var annotatable = new AnnotatableObject();
var key = new AnnotationKey <int>();
Assert.False(annotatable.RemoveAnnotation(key));
}
public void GetAnnotation_KeyDoesNotExist()
{
var annotatable = new AnnotatableObject();
var key = new AnnotationKey <int>();
Assert.Equal(1, annotatable.GetAnnotation(key, () => 1));
}
public void GetAnnotation_KeyDoesNotExist_NullInitializer()
{
var annotatable = new AnnotatableObject();
var key = new AnnotationKey <int>();
Assert.Equal(0, annotatable.GetAnnotation(key));
}
public void RemoveAnnotation_KeyExists()
{
var annotatable = new AnnotatableObject();
var key = new AnnotationKey <int>();
annotatable.SetAnnotation(key, 10);
Assert.True(annotatable.RemoveAnnotation(key));
}
public void SetAnnotation_GetAnnotation()
{
var annotatable = new AnnotatableObject();
var key = new AnnotationKey <int>();
annotatable.SetAnnotation(key, 10);
Assert.Equal(10, annotatable.GetAnnotation(key));
}
/// <inheritdoc/>
public bool RemoveAnnotation <TAnnotation>(AnnotationKey <TAnnotation> key)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
lock (_lock)
{
return(_annotations.Remove(key));
}
}
/// <inheritdoc/>
public void SetAnnotation <TAnnotation>(AnnotationKey <TAnnotation> key, TAnnotation value)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
lock (_lock)
{
_annotations[key] = value;
}
}
/// <inheritdoc/>
public TAnnotation GetAnnotation <TAnnotation>(
AnnotationKey <TAnnotation> key, Func <TAnnotation>?initializer = null)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
lock (_lock)
{
if (!_annotations.TryGetValue(key, out var annotation))
{
annotation = initializer is null ? default : initializer();
_annotations[key] = annotation;
}
Debug.Assert(annotation is TAnnotation);
return((TAnnotation)annotation);
}
}