Test undo/redo at editor layer, including selection restoration

crates/editor/src/multi_buffer/selection.rs

@@ -1,42 +0,0 @@
-use super::{Anchor, MultiBufferSnapshot};
-use std::ops::Sub;
-use text::{rope::TextDimension, Selection};
-
-fn resolve_selection<'a, D>(
-    selection: &'a Selection<Anchor>,
-    snapshot: &'a MultiBufferSnapshot,
-) -> Selection<D>
-where
-    D: TextDimension + Ord + Sub<D, Output = D>,
-{
-    Selection {
-        id: selection.id,
-        start: selection.start.summary::<D>(snapshot),
-        end: selection.end.summary::<D>(snapshot),
-        reversed: selection.reversed,
-        goal: selection.goal,
-    }
-}
-
-fn resolve_selections<'a, D>(
-    selections: &'a [Selection<Anchor>],
-    snapshot: &'a MultiBufferSnapshot,
-) -> impl 'a + Iterator<Item = Selection<D>>
-where
-    D: TextDimension + Ord + Sub<D, Output = D>,
-{
-    let mut summaries = snapshot
-        .summaries_for_anchors::<D, _>(
-            selections
-                .iter()
-                .flat_map(|selection| [&selection.start, &selection.end]),
-        )
-        .into_iter();
-    selections.iter().map(move |selection| Selection {
-        id: selection.id,
-        start: summaries.next().unwrap(),
-        end: summaries.next().unwrap(),
-        reversed: selection.reversed,
-        goal: selection.goal,
-    })
-}