test fixes

src/textual/widget.py

@@ -195,7 +195,7 @@ class Widget(DOMNode):
             return self._content_width_cache[1]
 
         console = self.app.console
-        renderable = self.render(self.styles.rich_style)
+        renderable = self.render()
         measurement = Measurement.get(
             console,
             console.options.update_width(container.width),

tests/css/test_styles.py

@@ -243,7 +243,7 @@ async def test_scrollbar_gutter(
     from textual.geometry import Size
 
     class TextWidget(Widget):
-        def render(self, styles) -> Text:
+        def render(self) -> Text:
             text_multiplier = 10 if text_length == "long_text" else 2
             return Text(
                 "Lorem ipsum dolor sit amet, consectetur adipiscing elit. In velit liber a a a."