text: from test.test_utilities import parse_node_simple_step_template_yaml_file
  
  contents = parse_node_simple_step_template_yaml_file("npm-install.yml")
  steps = contents["steps"]
  parameters = contents["parameters"]
  step = steps[0]
  stepInputs = step["inputs"]
  
  
  def test_task_display_name_parameter_default():
      assert parameters["taskDisplayName"] == "Install dependencies"
  
  
  def test_step_display_name():
      assert step["displayName"] == "${{ parameters.taskDisplayName }}"
  
  
  def test_num_steps():
      assert len(steps) == 1
  
  
  def test_step_command_input():
      assert stepInputs["command"] == "install"
  