text: import os
  import pytest
  
  # Get all the demos in this folder
  path = os.path.dirname(os.path.realpath(__file__))
  demos = []
  for folder in os.listdir(path):
      if folder.startswith("demo_"):
          subpath = os.path.join(path, folder)
          if os.path.isdir(subpath) and os.path.isfile(os.path.join(subpath, "main.cpp")):
              demos.append(folder)
  
  
  @pytest.mark.parametrize("demo", demos)
  def test_demo(demo):
      demo_build = f"{path}/{demo}/_build"
      assert os.system(f"mkdir -p {demo_build} && cd {demo_build} && cmake .. && make && ./{demo}") == 0