[tree-diff] another green test

Author: Byron

git-diff/src/visit/changes.rs

@@ -120,8 +120,9 @@ impl<'a> visit::Changes<'a> {
                                     },
                                     Some(Err(err)) => return Err(Error::EntriesDecode(err.to_owned())),
                                     None => {
-                                        todo!("LESS: depleted lhs");
-                                        // break 'inner_less;
+                                        delegate.pop_path_component();
+                                        add_entry_schedule_recursion(rhs, &mut state.trees, delegate)?;
+                                        break 'inner_less;
                                     }
                                 }
                             }

git-diff/tests/fixtures/make_diff_repo.sh

@@ -74,3 +74,8 @@ git rm f
 touch ff
 git add ff
 git commit -qam 'rm /f, add /ff'
+
+touch g/aa
+git rm g/a
+git add g/aa
+git commit -qam 'rm g/a, add g/aa'

git-diff/tests/visit/mod.rs

@@ -17,6 +17,7 @@ mod changes {
         const COMMIT_15: &str = "6112ecdac98a18bcbdbd83f0b180b3e1df12e293";
         const COMMIT_16: &str = "0ca25edc0c0b38fd6b6a0f6e4797dc08bf0c55c2";
         const COMMIT_17: &str = "0b93c2b59feb6c9a4efa1c78a4b4b17fd1c78508";
+        const COMMIT_18: &str = "53e18fb0d3296990f05382f9c67f8bd256126c4c";
 
         fn db() -> crate::Result<linked::Db> {
             linked::Db::at(
@@ -299,6 +300,30 @@ mod changes {
                 ":100644 000000 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0000000000000000000000000000000000000000 D	f
                   :000000 100644 0000000000000000000000000000000000000000 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 A	ff"
             );
+            assert_eq!(
+                diff_with_previous_commit_from(&db, COMMIT_18)?,
+                vec![
+                    recorder::Change::Modification {
+                        previous_entry_mode: EntryMode::Tree,
+                        previous_oid: hex_to_id("496d6428b9cf92981dc9495211e6e1120fb6f2ba"),
+                        entry_mode: EntryMode::Tree,
+                        oid: hex_to_id("6e5931346904b020301f74f581142826eacc4678"),
+                        path: "g".into()
+                    },
+                    recorder::Change::Deletion {
+                        entry_mode: EntryMode::Blob,
+                        oid: hex_to_id("e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"),
+                        path: "g/a".into()
+                    },
+                    recorder::Change::Addition {
+                        entry_mode: EntryMode::Blob,
+                        oid: hex_to_id("e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"),
+                        path: "g/aa".into()
+                    },
+                ],
+                ":100644 000000 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0000000000000000000000000000000000000000 D	g/a
+                 :000000 100644 0000000000000000000000000000000000000000 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 A	g/aa"
+            );
             Ok(())
         }
     }