public void Collapse_MismatchedItemId_Throws()
{
var sut = new UpdateOperation("test", "1234");
var newOp = new UpdateOperation("test", "4321");
Assert.Throws <ArgumentException>(() => sut.CollapseOperation(newOp));
}
public void Collapse_UpdateOperation()
{
var sut = new UpdateOperation("test", "1234");
var newOp = new UpdateOperation("test", "1234");
sut.CollapseOperation(newOp);
Assert.False(sut.IsCancelled);
Assert.True(sut.IsUpdated);
Assert.True(newOp.IsCancelled);
}