tests.py 文件源码

def backchain_to_goal_tree_4_testanswer(val, original_val = None):
    return ( tree_map(type_encode(val), frozenset) ==
             tree_map(type_encode(result_bc_4), frozenset) )

# This test checks to make sure that your backchainer produces
# the correct goal tree given the hypothesis 'gershwin could not
# ask for anything more' and using the rules defined in
# backchain_to_goal_tree_4_getargs() above.