old_contents: import os
  import sys
  sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  
  import unittest
  from bs4 import BeautifulSoup
  
  from web_scraper.core import prettifiers
  
  
  class TestSimplePrettifierFunction(unittest.TestCase):
  	def setUp(self):
  		html = """<h1>H1 Tag</h1>, <h1 class="class-name">H1 Tag with class</h1>"""
  		self.soup = BeautifulSoup(html, 'html.parser')
  
  	def test_function_prettifies_data(self):
  		"""simple_prettifier should return prettified data"""
  		scraped_data = self.soup.find_all('h1')
  		prettified_data = prettifiers.simple_prettifier(scraped_data)
  
  		self.assertEqual(['H1 Tag', 'H1 Tag with class'], prettified_data)
  
  
  class TestRegexPrettifierFunction(unittest.TestCase):
  	def setUp(self):
  		self.data = ["\\n      \\n        hello / world\\n "]
  
  	def test_function_prettifies_data(self):
  		"""regex prettifier should use regex to prettify the data"""
  		regex_prettified_data = prettifiers.regex_prettifier(self.data, regex=r'\\n|\s+')
  		self.assertEqual(['hello/world'], regex_prettified_data)
  
  
  if __name__ == '__main__':
  	unittest.main()
new_contents: import os
  import sys
  sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  
  import unittest
  from bs4 import BeautifulSoup
  
  from web_scraper.core import prettifiers
  
  
  class TestRemoveHtmlTagsFunction(unittest.TestCase):
  	def setUp(self):
  		html = """<h1>H1 Tag</h1>, <h1 class="class-name">H1 Tag with class</h1>"""
  		self.soup = BeautifulSoup(html, 'html.parser')
  
  	def test_function_prettifies_data(self):
  		"""remove_html_tags should return prettified data"""
  		scraped_data = self.soup.find_all('h1')
  		prettified_data = prettifiers.remove_html_tags(scraped_data)
  
  		self.assertEqual(['H1 Tag', 'H1 Tag with class'], prettified_data)
  
  
  class TestRegexPrettifierFunction(unittest.TestCase):
  	def setUp(self):
  		self.data = ["\\n      \\n        hello / world\\n "]
  
  	def test_function_prettifies_data(self):
  		"""regex prettifier should use regex to prettify the data"""
  		regex_prettified_data = prettifiers.regex_prettifier(self.data, regex=r'\\n|\s+')
  		self.assertEqual(['hello/world'], regex_prettified_data)
  
  
  if __name__ == '__main__':
  	unittest.main()
subject: Fix naming issue