code: def test_register_backend_specific_uses_correct_function(monkeypatch):
      def f_backend_specific():
          return 1
  
      monkeypatch.setattr(
          tensorly.utils.backend_specific,
          "available_backend_names",
          ["backend"],
      )
  
      @register_backend_specific("backend", f_backend_specific)
      def f():
          return 2
  
      # Check if the default function is called when the backend is not "backend"
      assert f() == 2
  
      # Monkeypatch get_backend and check that the specific function is called when backend is "backend"
      def get_backend():
          return "backend"
  
      monkeypatch.setattr(
          tensorly.utils.backend_specific, "get_backend", get_backend
      )
      assert f() == 1
  
file_path: tensorly/tensorly/utils/tests/test_backend_specific.py
imports: import pytest
  import tensorly.utils.backend_specific
  from tensorly.utils.backend_specific import register_backend_specific
label_desc: Use image node_id 7 for calling a global function with example usage: test_register_backend_specific_uses_correct_function(monkeypatch) and returns: int, int, str