code: def test_basics_graphics_view():
      view = pg.GraphicsView()
      background_role = view.backgroundRole()
      assert background_role == QtGui.QPalette.ColorRole.Window
  
      assert view.backgroundBrush().color() == QtGui.QColor(
          0, 0, 0, 255
      )
  
      assert view.focusPolicy() == QtCore.Qt.FocusPolicy.StrongFocus
      assert (
          view.transformationAnchor()
          == QtWidgets.QGraphicsView.ViewportAnchor.NoAnchor
      )
      minimal_update = (
          QtWidgets.QGraphicsView.ViewportUpdateMode.MinimalViewportUpdate
      )
      assert view.viewportUpdateMode() == minimal_update
      assert view.frameShape() == QtWidgets.QFrame.Shape.NoFrame
      assert view.hasMouseTracking() is True
  
      # Default properties
      # --------------------------------------
  
      assert view.mouseEnabled is False
      assert view.aspectLocked is False
      assert view.autoPixelRange is True
      assert view.scaleCenter is False
      assert view.clickAccepted is False
      assert view.centralWidget is not None
      assert view._background == "default"
  
      # Set background color
      # --------------------------------------
      view.setBackground("w")
      assert view._background == "w"
      assert (
          view.backgroundBrush().color() == QtCore.Qt.GlobalColor.white
      )
  
      # Set anti aliasing
      # --------------------------------------
      aliasing = QtGui.QPainter.RenderHint.Antialiasing
      # Default is set to `False`
      assert view.renderHints() & aliasing != aliasing
      view.setAntialiasing(True)
      assert view.renderHints() & aliasing == aliasing
      view.setAntialiasing(False)
      assert view.renderHints() & aliasing != aliasing
  
      # Enable mouse
      # --------------------------------------
      view.enableMouse(True)
      assert view.mouseEnabled is True
      assert view.autoPixelRange is False
      view.enableMouse(False)
      assert view.mouseEnabled is False
      assert view.autoPixelRange is True
  
      # Add and remove item
      # --------------------------------------
      central_item = QtWidgets.QGraphicsWidget()
      view.setCentralItem(central_item)
      assert view.centralWidget is central_item
      # XXX: Removal of central item is not clear in code
      scene = view.sceneObj
      assert isinstance(scene, pg.GraphicsScene)
      assert central_item in scene.items()
  
      item = QtWidgets.QGraphicsWidget()
      assert item not in scene.items()
      view.addItem(item)
      assert item in scene.items()
      view.removeItem(item)
      assert item not in scene.items()
  
      # Close the graphics view
      # --------------------------------------
  
      view.close()
      assert view.centralWidget is None
      assert view.currentItem is None
      assert view.sceneObj is None
      assert view.closed is True
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_basics_graphics_view() without return types