Add a test and fix some typos

Author: jg-rp

jsonpath/env.py

@@ -99,7 +99,7 @@ class attributes `root_token`, `self_token` and `filter_context_token`.
         intersection_token (str): The pattern used as the intersection operator.
             Defaults to `"&"`.
         key_token (str): The pattern used to identify the current key or index when
-            filtering a, mapping or sequence. Defaults to `"#"`.
+            filtering a mapping or sequence. Defaults to `"#"`.
         keys_selector_token (str): The pattern used as the "keys" selector. Defaults to
             `"~"`.
         lexer_class: The lexer to use when tokenizing path strings.

jsonpath/pointer.py

@@ -140,15 +140,14 @@ def _handle_key_error(self, obj: Any, key: Any, err: Exception) -> object:
             # Try a string repr of the index-like item as a mapping key.
             return self._getitem(obj, str(key))
 
-        # Handle non-standard keys/property selector/pointer.
+        # Handle non-standard key/property selector/pointer.
         #
-        # For the benefit of `RelativeJSONPointer.to()`, treat keys starting with a `#`
-        # as a "key pointer". If `key[1:]` is a key in `obj`, return the key.
+        # For the benefit of `RelativeJSONPointer.to()` and `JSONPathMatch.pointer()`,
+        # treat keys starting with a `#` or `~` as a "key pointer". If `key[1:]` is a
+        # key in `obj`, return the key.
         #
-        # Note that is a key with a leading `#` exists in `obj`, it will have been
+        # Note that if a key with a leading `#`/`~` exists in `obj`, it will have been
         # handled by `_getitem`.
-        #
-        # TODO: Same goes for `~`
         if (
             isinstance(key, str)
             and isinstance(obj, Mapping)

tests/test_json_pointer.py

@@ -40,7 +40,7 @@ def test_resolve_with_default() -> None:
     assert pointer.resolve(data, default=None) is None
 
 
-def test_pointer_index_out_fo_range() -> None:
+def test_pointer_index_out_of_range() -> None:
     max_plus_one = JSONPointer.max_int_index + 1
     min_minus_one = JSONPointer.min_int_index - 1
 
@@ -309,6 +309,12 @@ def test_non_standard_index_pointer_with_leading_zero() -> None:
         JSONPointer("/foo/bar/#09").resolve(data)
 
 
+def test_non_standard_index_pointer_to_non_array_object() -> None:
+    data = {"foo": {"bar": True, "#baz": "hello"}}
+    with pytest.raises(JSONPointerTypeError):
+        JSONPointer("/foo/bar/#1").resolve(data)
+
+
 def test_trailing_slash() -> None:
     data = {"foo": {"": [1, 2, 3], " ": [4, 5, 6]}}
     assert JSONPointer("/foo/").resolve(data) == [1, 2, 3]