add pytest and documentation

tests/test_code.py

@@ -0,0 +1,12 @@
+from nicegui import ui
+
+from .screen import Screen
+
+
+def test_code(screen: Screen):
+    ui.code('x = 42')
+
+    screen.open('/')
+    assert screen.find_by_class('n').text == 'x'
+    assert screen.find_by_class('o').text == '='
+    assert screen.find_by_class('mi').text == '42'

website/documentation.py

@@ -143,6 +143,7 @@ def captions_and_overlays_demo():
     load_demo(ui.scene)
     load_demo(ui.tree)
     load_demo(ui.log)
+    load_demo(ui.code)
     load_demo(ui.json_editor)
 
     heading('Layout')

website/more_documentation/code_documentation.py

@@ -0,0 +1,11 @@
+from nicegui import ui
+
+
+def main_demo() -> None:
+    ui.code('''
+        from nicegui import ui
+        
+        ui.label('Code inception!')
+            
+        ui.run()
+    ''').classes('w-full')