text: """Golden tests cases for testing liquid's built-in `sort_natural` filter."""
  
  from liquid.golden.case import Case
  
  cases = [
      Case(
          description="array of strings",
          template=r"{{ a | sort_natural | join: '#' }}",
          expect="a#A#b#B#C",
          globals={"a": ["b", "a", "C", "B", "A"]},
      ),
      Case(
          description="array of strings with a nul",
          template=(
              r"{% assign x = a | sort_natural %}"
              r"{% for i in x %}"
              r"{{ i }}"
              r"{% unless forloop.last %}#{% endunless %}"
              r"{% endfor %}"
          ),
          expect="a#A#b#B#C#",
          globals={"a": ["b", "a", None, "C", "B", "A"]},
      ),
      Case(
          description="array of objects with a key",
          template=(
              r"{% assign x = a | sort_natural: 'title' %}"
              r"{% for obj in x %}"
              r"{% for i in obj %}"
              r"({{ i[0] }},{{ i[1] }})"
              r"{% endfor %}"
              r"{% endfor %}"
          ),
          expect="(title,bar)(title,Baz)(title,foo)",
          globals={"a": [{"title": "foo"}, {"title": "bar"}, {"title": "Baz"}]},
      ),
      Case(
          description="array of objects with a key gets stringified",
          template=(
              r"{% assign x = a | sort_natural: 'title' %}"
              r"{% for obj in x %}"
              r"{% for i in obj %}"
              r"({{ i[0] }},{{ i[1] }})"
              r"{% endfor %}"
              r"{% endfor %}"
          ),
          expect="(title,1111)(title,87)(title,9)",
          globals={"a": [{"title": 9}, {"title": 1111}, {"title": 87}]},
      ),
      Case(
          description="array of objects with a missing key",
          template=(
              r"{% assign x = a | sort_natural: 'title' %}"
              r"{% for obj in x %}"
              r"{% for i in obj %}"
              r"({{ i[0] }},{{ i[1] }})"
              r"{% endfor %}"
              r"{% endfor %}"
          ),
          expect="(title,bar)(title,foo)(heading,Baz)",
          globals={"a": [{"title": "foo"}, {"title": "bar"}, {"heading": "Baz"}]},
      ),
      Case(
          description="argument is undefined",
          template=(
              r"{% assign x = a | sort_natural: nosuchthing %}"
              r"{% for obj in x %}"
              r"{% for i in obj %}"
              r"({{ i[0] }},{{ i[1] }})"
              r"{% endfor %}"
              r"{% endfor %}"
          ),
          expect="(title,bar)(title,Baz)(title,foo)",
          globals={"a": [{"title": "foo"}, {"title": "bar"}, {"title": "Baz"}]},
      ),
      Case(
          description="empty array",
          template=(
              r"{% assign x = a | sort_natural %}"
              r"{% for i in x %}"
              r"{{ i }}"
              r"{% unless forloop.last %}#{% endunless %}"
              r"{% endfor %}"
          ),
          expect="",
          globals={"a": []},
      ),
      Case(
          description="left value is not an array",
          template=r"{{ a | sort_natural }}",
          expect="123",
          globals={"a": 123},
      ),
      Case(
          description="left value is undefined",
          template=r"{{ nosuchthing | sort_natural }}",
          expect="",
      ),
  ]
  