No 'Move' step

[sschizas]

Hi @onmyway133 ,

I am using DeepDiff and I have the following problem I can't figure out what is wrong:

I have a class (Hashable):

class Foo: Hashable { let models: [String] }

In the begging I have one instance of class Foo called A in an array and DeepDiff correctly instructs for an insert as the initial state is an empty uitableview. Then I have two instances of class Foo called A and B in the following order: [B, A], and DeepDiff correctly instructs for an insert for instance B but for instance A it doesn't instruct anything ex. move. I am missing something? Is this a bug?

[onmyway133]

@sschizas Hi, I believe what you are asking is like this ?

func testInsert() {
  let old = Array("a")
  let new = Array("ba")
  let changes = diff(old: old, new: new)
  XCTAssertEqual(changes.count, 1)

  XCTAssertNotNil(changes[0].insert)
}

I think that suits the way UITableView/UICollection does its animation. If you create a new project using the default template Master - Detail, you can see this function which does the job of inserting 1 item to the beginning of the list

  func insertNewObject(_ sender: Any) {
    objects.insert(NSDate(), at: 0)
    let indexPath = IndexPath(row: 0, section: 0)
    tableView.insertRows(at: [indexPath], with: .automatic)
  }