old_contents: #!/usr/bin/env python3
  
  import pytest
  import poll_bot
  
  class TestPollBot:
  
  	def test_extract_emoji(self):
  		lines_and_emojis = {
  			' M)-ystery meat': 'M',
  			'🐕 dog sandwiches': '🐕',
  			'3 blind mice': '3',
  			'🇺🇸 flags': '🇺🇸',
  			'<:python3:232720527448342530> python3!': '<:python3:232720527448342530>',
  		}
  		
  		for input, output in lines_and_emojis.items():
  			assert poll_bot.extract_emoji(input) == output
new_contents: #!/usr/bin/env python3
  
  import pytest
  import poll_bot
  
  class TestPollBot:
  
  	def test_extract_emoji(self):
  		lines_and_emojis = {
  			' M)-ystery meat': 'M',
  			'🐕 dog sandwiches': '🐕',
  			'3 blind mice': '3',
  			'🇺🇸 flags': '🇺🇸',
  			'<:python3:232720527448342530> python3!': '<:python3:232720527448342530>',
  		}
  		
  		for input, output in lines_and_emojis.items():
  			assert poll_bot.extract_emoji(input) == output
  	
  	
  	def test_emojify(self):
  		# custom emoji extraction is the only feature unique to emojify()
  		# so we'll test the other functionality in other tests
  		assert poll_bot.emojify('<:python3:232720527448342530>') == ':python3:232720527448342530'
subject: add emojify test