public void Fetch_ReturnsExtensionFromCollecton_IfCollectionChanged()
{
// Arrange
int revision = 1;
object extension1 = new object();
object extension2 = new object();
object entry = extension1;
var collection = CreateCollection <object>(
onRevision: () => revision,
onGet: () => entry);
var reference = new WorkContextExtensionReference <object>();
reference.Update(collection, extension1);
// Act
var result1 = reference.Fetch(collection);
int revision1 = reference.Revision;
revision++;
entry = extension2;
var result2 = reference.Fetch(collection);
int revision2 = reference.Revision;
// Assert
Assert.NotNull(result1);
Assert.Same(extension1, result1);
Assert.Equal(1, revision1);
Assert.NotNull(result2);
Assert.Same(extension2, result2);
Assert.Equal(2, revision2);
}
public void Update_CapturesExtension_AndRevision()
{
// Arrange
object extension = new object();
object capturedExtension = null;
var collection = CreateCollection <object>(
revision: 1,
onSet: e => capturedExtension = e);
var reference = new WorkContextExtensionReference <object>();
// Act
var result = reference.Update(collection, extension);
// Assert
Assert.Equal(1, reference.Revision);
Assert.Equal(extension, reference.Extension);
}
public void Fetch_ReturnsCapturedExtension_IfCollectionNotChanged()
{
// Arrange
object extension = new object();
var collection = CreateCollection <object>(
revision: 1,
extension: extension);
var reference = new WorkContextExtensionReference <object>();
reference.Update(collection, extension);
// Act
var result = reference.Fetch(collection);
// Assert
Assert.NotNull(result);
Assert.Same(extension, result);
Assert.Same(extension, reference.Extension);
}
public void Update_SetsExtension_InCollection()
{
// Arrange
object extension = new object();
object capturedExtension = null;
var collection = CreateCollection <object>(
revision: 1,
onSet: e => capturedExtension = e);
var reference = new WorkContextExtensionReference <object>();
// Act
var result = reference.Update(collection, extension);
// Assert
Assert.NotNull(capturedExtension);
Assert.Same(extension, capturedExtension);
Assert.NotNull(result);
Assert.Same(extension, result);
}