✨ Test code for Textualize/textual#2400

md_code_blocks.py

@@ -0,0 +1,36 @@
+"""https://github.com/Textualize/textual/issues/2400"""
+
+from textual.app        import App, ComposeResult
+from textual.containers import VerticalScroll
+from textual.widgets    import Header, Footer, Markdown
+
+MARKDOWN = """\
+# Hello world!
+
+Here is some Python code in a code block:
+
+```python
+def hello() -> str:
+    return "Hello!"
+```
+
+Here is some plain text in a code block:
+
+```
+Hello!
+```
+
+"""
+class MDCodeBlocksApp( App[ None ] ):
+
+    def compose( self ) -> ComposeResult:
+        yield Header()
+        with VerticalScroll():
+            yield Markdown( MARKDOWN )
+        yield Footer()
+
+    def on_mount( self ) -> None:
+        self.dark = True
+
+if __name__ == "__main__":
+    MDCodeBlocksApp().run()