old_contents: from Cython.Build.Dependencies import strip_string_literals
  
  from Cython.TestUtils import CythonTest
  
  class TestStripLiterals(CythonTest):
  
      def t(self, before, expected):
          actual, literals = strip_string_literals(before, prefix="_L")
          self.assertEquals(expected, actual)
          for key, value in literals.items():
              actual = actual.replace(key, value)
          self.assertEquals(before, actual)
  
      def test_empty(self):
          self.t("", "")
  
      def test_single_quote(self):
          self.t("'x'", "'_L1_'")
  
      def test_double_quote(self):
          self.t('"x"', '"_L1_"')
  
      def test_nested_quotes(self):
          self.t(""" '"' "'" """, """ '_L1_' "_L2_" """)
  
      def test_triple_quote(self):
          self.t(" '''a\n''' ", " '''_L1_''' ")
  
      def test_backslash(self):
          self.t(r"'a\'b'", "'_L1_'")
          self.t(r"'a\\'", "'_L1_'")
          self.t(r"'a\\\'b'", "'_L1_'")
  
      def test_unicode(self):
          self.t("u'abc'", "u'_L1_'")
  
      def test_raw(self):
          self.t(r"r'abc\\'", "r'_L1_'")
  
      def test_raw_unicode(self):
          self.t(r"ru'abc\\'", "ru'_L1_'")
  
      def test_comment(self):
          self.t("abc # foo", "abc #_L1_")
  
      def test_comment_and_quote(self):
          self.t("abc # 'x'", "abc #_L1_")
          self.t("'abc#'", "'_L1_'")
  
      def test_include(self):
          self.t("include 'a.pxi' # something here",
                 "include '_L1_' #_L2_")
  
      def test_extern(self):
          self.t("cdef extern from 'a.h': # comment",
                 "cdef extern from '_L1_': #_L2_")
  
  
new_contents: from Cython.Build.Dependencies import strip_string_literals
  
  from Cython.TestUtils import CythonTest
  
  class TestStripLiterals(CythonTest):
  
      def t(self, before, expected):
          actual, literals = strip_string_literals(before, prefix="_L")
          self.assertEqual(expected, actual)
          for key, value in literals.items():
              actual = actual.replace(key, value)
          self.assertEqual(before, actual)
  
      def test_empty(self):
          self.t("", "")
  
      def test_single_quote(self):
          self.t("'x'", "'_L1_'")
  
      def test_double_quote(self):
          self.t('"x"', '"_L1_"')
  
      def test_nested_quotes(self):
          self.t(""" '"' "'" """, """ '_L1_' "_L2_" """)
  
      def test_triple_quote(self):
          self.t(" '''a\n''' ", " '''_L1_''' ")
  
      def test_backslash(self):
          self.t(r"'a\'b'", "'_L1_'")
          self.t(r"'a\\'", "'_L1_'")
          self.t(r"'a\\\'b'", "'_L1_'")
  
      def test_unicode(self):
          self.t("u'abc'", "u'_L1_'")
  
      def test_raw(self):
          self.t(r"r'abc\\'", "r'_L1_'")
  
      def test_raw_unicode(self):
          self.t(r"ru'abc\\'", "ru'_L1_'")
  
      def test_comment(self):
          self.t("abc # foo", "abc #_L1_")
  
      def test_comment_and_quote(self):
          self.t("abc # 'x'", "abc #_L1_")
          self.t("'abc#'", "'_L1_'")
  
      def test_include(self):
          self.t("include 'a.pxi' # something here",
                 "include '_L1_' #_L2_")
  
      def test_extern(self):
          self.t("cdef extern from 'a.h': # comment",
                 "cdef extern from '_L1_': #_L2_")
  
  
subject: Fix deprecated unittest API usage.