# assert_tree_match

`asdf.tests.helpers.``assert_tree_match`(old_tree, new_tree, ctx=None, funcname='assert_equal', ignore_keys=None)

  Assert that two ASDF trees match.

  Parameters:

  old_tree : ASDF tree

  new_tree : ASDF tree

  ctx : ASDF file context

  > Used to look up the set of types in effect.

  funcname : `str` or `callable`

  > The name of a method on members of old_tree and new_tree that will be used to compare custom objects. The default of `assert_equal` handles Numpy arrays.

  ignore_keys : list of str

  > List of keys to ignore