Dont allow None value for StateBase.src

Author: hukkinj1

markdown_it/ruler.py

@@ -46,7 +46,7 @@ def src(self):
     @src.setter
     def src(self, value):
         self._src = value
-        self.srcCharCode = [ord(c) for c in self.src] if self.src is not None else []
+        self.srcCharCode = [ord(c) for c in self.src]
 
 
 # The first positional arg is always a subtype of `StateBase`. Other

tests/test_api/test_main.py

@@ -1,6 +1,5 @@
 from markdown_it import MarkdownIt
 from markdown_it.token import Token
-from markdown_it.rules_core import StateCore
 from markdown_it.utils import AttrDict
 
 
@@ -248,18 +247,6 @@ def test_emptyStr():
     ]
 
 
-def test_noneState():
-    md = MarkdownIt()
-    state = StateCore(None, md, {}, [])
-
-    # Remove normalizing rule
-    rules = md.core.ruler.get_active_rules()
-    md.core.ruler.enableOnly(rules[rules.index("inline") :])
-
-    # Check that we can process None str with empty env and block_tokens
-    md.core.process(state)
-
-
 def test_empty_env():
     """Test that an empty `env` is mutated, not copied and mutated."""
     md = MarkdownIt()