Add a second ESPHome fleet display that shares the existing printer pages.

Co-authored-by: Cursor <cursoragent@cursor.com>

esphome/bambu-display/test_generate.py

@@ -123,7 +123,7 @@ class FleetTests(unittest.TestCase):
             pass
         for tag in ('!secret', '!include'):
             Loader.add_constructor(tag, lambda loader, node: loader.construct_scalar(node))
-        config = yaml.load((HERE.parent / 'bambu-printer-display.yaml').read_text(), Loader=Loader)
+        config = yaml.load((HERE / 'board.yaml').read_text(), Loader=Loader)
         display = config['display'][0]
         pins = display['data_pins']
         natural = pins['blue'] + pins['green'] + pins['red']
@@ -135,6 +135,18 @@ class FleetTests(unittest.TestCase):
                              for i, pin in enumerate(driver))
             self.assertEqual(panel_word, color, f'RGB565 color {color:#06x} is wired incorrectly')
 
+    def test_both_boards_share_one_hardware_package(self):
+        class Loader(yaml.SafeLoader):
+            pass
+        Loader.add_constructor('!include', lambda loader, node: loader.construct_scalar(node))
+        names = set()
+        for filename in ('bambu-printer-display.yaml', 'bambu-printer-display-2.yaml'):
+            config = yaml.load((HERE.parent / filename).read_text(), Loader=Loader)
+            names.add(config['substitutions']['device_name'])
+            self.assertEqual(config['packages']['board'], 'bambu-display/board.yaml')
+            self.assertEqual(config['packages']['fleet'], 'bambu-display/generated.yaml')
+        self.assertEqual(len(names), 2)
+
     def test_diagnostic_color_page_is_skipped_during_normal_navigation(self):
         package = generate(self.printers)
         page = next(page for page in package['lvgl']['pages'] if page['id'] == 'color_test_page')