fix: ignore internal types false positives with jinja[invalid]

.config/dictionary.txt

@@ -53,6 +53,7 @@ indentless
 inlinehilite
 iscsi
 junitxml
+kdump
 kubevirt
 libyaml
 licensedb

src/ansiblelint/rules/jinja.py

@@ -71,6 +71,14 @@ class Token(NamedTuple):
             r"An unhandled exception occurred while templating (.*). Error was a <class 'ansible.errors.AnsibleFilterError'>, original message: The (.*) test expects a dictionary$",
             r"can only concatenate list \(not \"_AnsibleTaggedStr\"\) to list",
             r"can only concatenate str \(not \"_AnsibleTaggedStr\"\) to str",
+            r"can only concatenate list \(not \"UndefinedMarker\"\) to list",
+            r"can only concatenate str \(not \"UndefinedMarker\"\) to str",
+            r"can only concatenate list \(not \"AnsibleUndefined\"\) to list",
+            r"can only concatenate str \(not \"AnsibleUndefined\"\) to str",
+            r"can only concatenate list \(not \"StrictUndefined\"\) to list",
+            r"can only concatenate str \(not \"StrictUndefined\"\) to str",
+            r"can only concatenate list \(not \"ChainableUndefined\"\) to list",
+            r"can only concatenate str \(not \"ChainableUndefined\"\) to str",
         ],
     ),
     flags=re.MULTILINE | re.DOTALL,
@@ -977,7 +985,7 @@ def test_jinja_template_generates_ansible_tagged_str_error() -> None:
             f"Normal error should not be ignored: {normal_error_msg}"
         )
 
-        # Test that the ignore pattern works for the specific error we're testing
+        # Test UndefinedMarker errors are ignored
         assert ignored_re.search(
-            'can only concatenate str (not "_AnsibleTaggedStr") to str'
-        ), "String concatenation with _AnsibleTaggedStr should also be ignored"
+            'can only concatenate list (not "UndefinedMarker") to list'
+        ), "UndefinedMarker concatenation should be ignored"

test/test_jinja_ansible_tagged_str.py

@@ -38,18 +38,42 @@ def test_jinja_template_generates_ansible_tagged_str_error_comprehensive(
     @pytest.mark.parametrize(
         ("error_message", "should_be_ignored"),
         (
+            # _AnsibleTaggedStr errors (cockpit issue)
             ('can only concatenate list (not "_AnsibleTaggedStr") to list', True),
             ('can only concatenate str (not "_AnsibleTaggedStr") to str', True),
+            # UndefinedMarker errors (kdump issue)
+            ('can only concatenate list (not "UndefinedMarker") to list', True),
+            ('can only concatenate str (not "UndefinedMarker") to str', True),
+            # AnsibleUndefined errors (kernel_settings issue)
+            ('can only concatenate list (not "AnsibleUndefined") to list', True),
+            ('can only concatenate str (not "AnsibleUndefined") to str', True),
+            # StrictUndefined errors (kernel_settings issue)
+            ('can only concatenate list (not "StrictUndefined") to list', True),
+            ('can only concatenate str (not "StrictUndefined") to str', True),
+            # ChainableUndefined errors (vpn issue)
+            ('can only concatenate list (not "ChainableUndefined") to list', True),
+            ('can only concatenate str (not "ChainableUndefined") to str', True),
+            # Other known patterns
             ("Unexpected templating type error occurred on", True),
             ("Object of type method is not JSON serializable", True),
+            # Legitimate errors that should NOT be ignored
             ('can only concatenate list (not "int") to list', False),
             ("TemplateSyntaxError: unexpected char '!' at 5", False),
         ),
     )
     def test_jinja_ignore_patterns_comprehensive(
         self, error_message: str, should_be_ignored: bool
     ) -> None:
-        """Test comprehensive ignore patterns for _AnsibleTaggedStr errors."""
+        """Test comprehensive ignore patterns for ansible-core 2.19+ type errors.
+
+        This covers:
+        - _AnsibleTaggedStr errors (cockpit role)
+        - UndefinedMarker errors (kdump role)
+        - AnsibleUndefined/StrictUndefined errors (kernel_settings role)
+        - ChainableUndefined errors (vpn role)
+
+        See: linux-system-roles/vpn#207
+        """
         matches = bool(ignored_re.search(error_message))
         assert matches == should_be_ignored, (
             f"Error message '{error_message}' should {'be ignored' if should_be_ignored else 'not be ignored'} "