code: def test_plots_diff_open_wsl(tmp_dir, dvc, mocker, plots_data):
      mocked_open = mocker.patch("webbrowser.open", return_value=True)
      mocked_uname_result = mocker.MagicMock()
      mocked_uname_result.release = "microsoft"
      mocker.patch("platform.uname", return_value=mocked_uname_result)
  
      cli_args = parse_args(
          ["plots", "diff", "--targets", "plots.csv", "--open"]
      )
      cmd = cli_args.func(cli_args)
      mocker.patch("dvc.repo.plots.diff.diff", return_value=plots_data)
  
      index_path = tmp_dir / "dvc_plots" / "index.html"
      mocker.patch("dvc_render.render_html", return_value=index_path)
  
      assert cmd.run() == 0
      mocked_open.assert_called_once_with(
          str(Path("dvc_plots") / "index.html")
      )
  
imports: import json
  import os
  import posixpath
  from pathlib import Path
  import pytest
  from funcy import set_in
  from dvc.cli import parse_args
  from dvc.commands.plots import CmdPlotsDiff, CmdPlotsShow, CmdPlotsTemplates
  from dvc.render.match import RendererWithErrors
  from dvc.utils.serialize import YAMLFileCorruptedError
label_desc: Use image node_id 6 for calling a global function with example usage: test_plots_diff_open_wsl(tmp_dir, dvc, mocker, plots_data) without return types