Find max root and purge roots below it. (#4645)

* Test for forking accounts * Find max root and purge roots below it.
2019-06-13 17:35:16 -07:00
parent 34c0537e9b
commit 9e3758983d
3 changed files with 74 additions and 26 deletions
--- a/runtime/src/accounts_db.rs
+++ b/runtime/src/accounts_db.rs
@ -1219,14 +1219,7 @@ mod tests {
            .clone();
        //fork 0 is behind root, but it is not root, therefore it is purged
        accounts.add_root(1);
-        {
-            let accounts_index = accounts.accounts_index.read().unwrap();
-            assert!(AccountsIndex::<AccountInfo>::is_purged(
-                &accounts_index.roots,
-                accounts_index.last_root,
-                0
-            ));
-        }
+        assert!(accounts.accounts_index.read().unwrap().is_purged(0));

        //fork is still there, since gc is lazy
        assert!(accounts.storage.read().unwrap().0[&0]