new_contents: from thefuck import shells
  from thefuck.rules.git_branch_list import match, get_new_command
  from tests.utils import Command
  
  def test_match():
      assert match(Command('git branch list'), None)
  
  
  def test_not_match():
      assert not match(Command(), None)
      assert not match(Command('git commit'), None)
      assert not match(Command('git branch'), None)
      assert not match(Command('git stash list'), None)
  
  
  def test_get_new_command():
      assert (get_new_command(Command('git branch list'), None) ==
              shells.and_('git branch --delete list', 'git branch'))
  
subject: Add a test for git_branch_list rule