fix(directory): properly handle list with nested directory partition

Author: PierreZ

foundationdb-bindingtester/README.md

@@ -15,4 +15,4 @@ The following configurations are tested and should pass without any issue:
 
 ## Directory faulty seed
 
-* Completed directory test with random seed 2807298642 and 849 operations (bad layer, path and list child)
+* Completed directory test with random seed 3642303358 and 6538 operations (should fire directory errors)

foundationdb/src/directory/directory_layer.rs

@@ -564,27 +564,34 @@ impl DirectoryLayer {
         trx: &Transaction,
         path: Vec<String>,
     ) -> Result<Vec<String>, DirectoryError> {
+        println!("listing path {:?} with self.path={:?}", &path, &self.path);
         self.check_version(trx, false).await?;
 
         let node = self.find(trx, path.to_owned()).await?;
         if !node.exists() {
             return Err(DirectoryError::PathDoesNotExists);
         }
-        if node.is_in_partition(false) {
+        if node.is_in_partition(true) {
             let subspace_node = match node.subspace {
                 // not reachable because `self.find` is creating a node with a subspace.
                 None => unreachable!("node's subspace is not set"),
                 Some(ref s) => s.clone(),
             };
 
-            let directory_partition = self.contents_of_node(
+            match self.contents_of_node(
                 subspace_node,
                 node.current_path.to_owned(),
                 node.layer.to_owned(),
-            )?;
-            return directory_partition
-                .list(trx, node.get_partition_subpath())
-                .await;
+            )? {
+                DirectoryOutput::DirectorySubspace(_) => unreachable!("already in partition"),
+                DirectoryOutput::DirectoryPartition(directory_partition) => {
+                    return directory_partition
+                        .directory_subspace
+                        .directory_layer
+                        .list(trx, node.get_partition_subpath())
+                        .await
+                }
+            };
         }
 
         Ok(node.list_sub_folders(trx).await?)