Remove the need of accessing delegator for hash

Signed-off-by: Martin Vrachev <mvrachev@vmware.com>

tests/test_updater_ng.py

@@ -114,22 +114,16 @@ def tearDown(self):
     # Logs stdout and stderr from the sever subprocess.
     self.server_process_handler.flush_log()
 
-  def _create_consistent_target(self, delegator_filename: str, targetname: str):
+  def _create_consistent_target(self, targetname: str, target_hash:str):
     """Create consistent targets copies of their non-consistent counterparts
     inside the repository directory.
 
     Args:
-      delegator_filename: Name of the delegator metadata file.
-      targetname: Name of the target file.
+      targetname: A string denoting the name of the target file.
+      target_hash: A string denoting the hash of the target.
 
     """
-    delegator_path = os.path.join(self.client_directory, delegator_filename)
-    with open(delegator_path, "rb") as f:
-      delegator_dict = json.loads(f.read())
-
-    target_info = delegator_dict["signed"]["targets"][targetname]
-    hashes = list(target_info["hashes"].values())
-    consistent_target_name = hashes[0] + "." + targetname
+    consistent_target_name = target_hash + "." + targetname
     source_path = os.path.join(self.repository_directory, "targets", targetname)
     destination_path = os.path.join(
       self.repository_directory, "targets", consistent_target_name
@@ -154,9 +148,6 @@ def _root_make_consistent_snapshot_true(self) -> bytes:
 
 
   def test_refresh_on_consistent_targets(self):
-    # Create consistent targets with file path HASH.FILENAME.EXT
-    self._create_consistent_target("targets.json", "file1.txt")
-    self._create_consistent_target("role1.json", "file3.txt")
 
     # Make root consistent snapshot true.
     root_modified_bytes = self._root_make_consistent_snapshot_true()
@@ -174,6 +165,12 @@ def test_refresh_on_consistent_targets(self):
     # Get targetinfo for "file3.txt" listed in the delegated role1
     targetinfo3 = self.repository_updater.get_one_valid_targetinfo("file3.txt")
 
+    # Create consistent targets with file path HASH.FILENAME.EXT
+    target1_hash = list(targetinfo1["fileinfo"].hashes.values())[0]
+    target3_hash =list(targetinfo3["fileinfo"].hashes.values())[0]
+    self._create_consistent_target("file1.txt", target1_hash)
+    self._create_consistent_target("file3.txt", target3_hash)
+
     destination_directory = self.make_temp_directory()
     updated_targets = self.repository_updater.updated_targets(
       [targetinfo1, targetinfo3], destination_directory