class_docstr: Tests for the ``Wires`` class.
docstr: Tests the ``map()`` method.
code: def test_map_method(self, wires, wire_map, expected):
      """Tests the ``map()`` method."""
  
      assert wires.map(wire_map) == expected
  
      # error when labels not in wire_map dictionary
      with pytest.raises(WireError, match="No mapping for wire label"):
          wires.map({-1: Wires(4)})
  
      # error for non-unique wire labels
      with pytest.raises(
          WireError, match="Failed to implement wire map"
      ):
          wires = Wires([0, 1])
          wires.map({0: "a", 1: "a"})
  
imports: import pytest
  import numpy
  import pennylane
  from pennylane.wires import Wires, WireError
label_desc: Use image node_id 25 for calling the TestWires obj's underlying member method code with example usage: obj.test_map_method(wires, wire_map, expected) without return types