new_contents: import cv2
  from plantcv.plantcv import watershed_segmentation, outputs
  
  
  def test_watershed_segmentation(test_data):
      # Clear previous outputs
      outputs.clear()
      # Read in test data
      img = cv2.imread(test_data.multi_bin_img)
      mask = cv2.imread(test_data.multi_bin_img, -1)
      _ = watershed_segmentation(rgb_img=img, mask=mask, distance=10)
      assert outputs.observations['default']['estimated_object_count']['value'] == 3
  
subject: Add watershed_segmentation tests module