💚 fix tests locally

Author: jeroendecroos

tests/test_parameter_help.py

@@ -8,11 +8,6 @@
 from typing_extensions import Doc
 
 
-@pytest.fixture
-def runner():
-    return CliRunner()
-
-
 @pytest.mark.parametrize(
     "doc,parameter,expected",
     [
@@ -41,12 +36,13 @@ def runner():
         ),
     ],
 )
-def test_doc_help(runner, doc, parameter, expected):
+def test_doc_help(doc, parameter, expected):
     app = typer.Typer()
 
     @app.command()
     def main(arg: Annotated[str, doc, parameter]):
         print(f"Hello {arg}")
 
+    runner = CliRunner()
     result = runner.invoke(app, ["--help"])
     assert expected in result.stdout

typer/main.py

@@ -827,12 +827,12 @@ def get_click_param(
             for annotation in param.other_annotations
             if isinstance(annotation, Doc)
         ]
+        if len(doc_annotations) > 1:
+            raise MultipleDocAnnotationsError(param.name)
         if len(doc_annotations) == 1:
             doc_help = doc_annotations[0].documentation if doc_annotations else None
             if not getattr(parameter_info, "help", None):
                 parameter_info.help = doc_help
-        if len(doc_annotations) > 1:
-            raise MultipleDocAnnotationsError(param.name)
     annotation: Any
     if param.annotation is not param.empty:
         annotation = param.annotation

typer/utils.py

@@ -144,6 +144,7 @@ def get_params_from_function(func: Callable[..., Any]) -> Dict[str, ParamMeta]:
         )
         if len(typer_annotations) > 1:
             raise MultipleTyperAnnotationsError(param.name)
+
         default = param.default
         if typer_annotations:
             # It's something like `my_param: Annotated[str, Argument()]`
@@ -157,6 +158,8 @@ def get_params_from_function(func: Callable[..., Any]) -> Dict[str, ParamMeta]:
                     default_param_type=type(param.default),
                 )
 
+            parameter_info = copy(parameter_info)
+
             # When used as a default, `Option` takes a default value and option names
             # as positional arguments:
             #   `Option(some_value, "--some-argument", "-s")`