Add test_graphical_keyboard_emoji_font.py

ThomasFarstrike · ThomasFarstrike · commit 19ac43877578 · 2026-05-27T16:15:03.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,9 @@ Future release (next version)
 Put unreleased changes here!
 
 
+0.11.0
+======
+
 Builtin Apps:
 - Bundle as compiled bytecode .mpy files to reduce build size by 60KiB and improve performance
 - About: show system uptime
@@ -14,13 +17,14 @@ Frameworks:
 - AppManager: require explicit import lvgl for clarity
 - FontManager: new framework that provides font listing, TTF support, emoji support
 - InputManager: mark emulate_focus_obj(group,o) as deprecated in favor of lv.group_focus_obj(o)
+- MposKeyboard: add support for typing a few basic emojis
 - SharedPreferences: avoid writing default-only configs at boot and prune empty config dirs/files
 
 OS:
 - Add os.path functionality like in CPython
 - c_mpos/quirc: fix compilation warnings
-- Simplify focusgroup handling
 - Disable unused OS facilities (FreeRTOS internals, tracing, INFO logging, broken GIF, Pinyin IME, LVGL window, BMP) to reduce build size by 109KiB
+- Simplify focusgroup handling
 - Re-enable UART REPL again BUT add esp.uart_repl(False) functionality to disable/enable it at runtime
 
 0.10.0
diff --git a/internal_filesystem/lib/mpos/ui/testing.py b/internal_filesystem/lib/mpos/ui/testing.py
@@ -1648,34 +1648,36 @@ def click_keyboard_button(keyboard, button_text, use_direct=True):
         return False
     
     if use_direct and is_mpos_keyboard:
-        # For MposKeyboard, directly manipulate the textarea
-        # This is the most reliable approach for testing
-        textarea = keyboard._textarea
-        if textarea is None:
-            print(f"click_keyboard_button: No textarea connected to keyboard")
-            return False
-        
-        current_text = textarea.get_text()
-        
-        # Handle special keys (matching keyboard.py logic)
-        if button_text == lv.SYMBOL.BACKSPACE:
-            new_text = current_text[:-1]
-        elif button_text == " " or button_text == keyboard.LABEL_SPACE:
-            new_text = current_text + " "
-        elif button_text in [lv.SYMBOL.UP, lv.SYMBOL.DOWN, keyboard.LABEL_LETTERS,
-                            keyboard.LABEL_NUMBERS_SPECIALS, keyboard.LABEL_SPECIALS,
-                            lv.SYMBOL.OK]:
-            # Mode switching or OK - don't modify text
-            print(f"click_keyboard_button: '{button_text}' is a control key, not adding to textarea")
-            wait_for_render(10)
-            return True
-        else:
-            # Regular character
-            new_text = current_text + button_text
-        
-        textarea.set_text(new_text)
+        # For MposKeyboard, run through its event handler logic so behavior
+        # matches real typing (including mode switching and emoji font updates).
+        class _SyntheticKeyboardTarget:
+            def __init__(self, idx, text):
+                self._idx = idx
+                self._text = text
+
+            def get_selected_button(self):
+                return self._idx
+
+            def get_button_text(self, idx):
+                if idx == self._idx:
+                    return self._text
+                return None
+
+        class _SyntheticKeyboardEvent:
+            def __init__(self, target):
+                self._target = target
+
+            def get_code(self):
+                return lv.EVENT.VALUE_CHANGED
+
+            def get_target_obj(self):
+                return self._target
+
+        target = _SyntheticKeyboardTarget(button_idx, button_text)
+        event = _SyntheticKeyboardEvent(target)
+        keyboard._handle_events(event)
         wait_for_render(10)
-        print(f"click_keyboard_button: Clicked '{button_text}' at index {button_idx} using direct textarea manipulation")
+        print(f"click_keyboard_button: Clicked '{button_text}' at index {button_idx} using direct handler simulation")
     else:
         # Use coordinate-based clicking
         coords = get_keyboard_button_coords(keyboard, button_text)
diff --git a/tests/TimesNRW01-SmallTextRegular.ttf b/tests/TimesNRW01-SmallTextRegular.ttf
diff --git a/tests/test_graphical_keyboard_emoji_font.py b/tests/test_graphical_keyboard_emoji_font.py
@@ -0,0 +1,64 @@
+"""
+Graphical tests for emoji input on MposKeyboard.
+
+Checks that:
+- Emoji keys exist on the specials keyboard layout
+- Typing an emoji inserts it into the textarea
+- Textarea font is switched to an emoji-capable composed font
+
+Usage:
+    Desktop: ./tests/unittest.sh tests/test_graphical_keyboard_emoji_font.py
+    Device:  ./tests/unittest.sh tests/test_graphical_keyboard_emoji_font.py --ondevice
+"""
+
+import unittest
+import lvgl as lv
+
+from mpos import FontManager
+from mpos.ui.testing import KeyboardTestCase
+
+
+class TestGraphicalKeyboardEmojiFont(KeyboardTestCase):
+    def test_typing_emoji_switches_textarea_font(self):
+        keyboard, textarea = self.create_keyboard_scene(initial_text="")
+
+        base_font = FontManager.getFont(size=16, family="Montserrat", emoji=False)
+        textarea.set_style_text_font(base_font, lv.PART.MAIN)
+        self.wait_for_render()
+
+        before_font = textarea.get_style_text_font(lv.PART.MAIN)
+        self.assertEqual(before_font.get_line_height(), base_font.get_line_height())
+
+        keyboard.set_mode(keyboard.MODE_SPECIALS)
+        self.wait_for_render()
+
+        emoji_key = "&#128578;"
+        emoji_found = False
+        emoji_button_idx = None
+        for i in range(100):
+            text = keyboard.get_button_text(i)
+            if text is None:
+                break
+            if text == emoji_key:
+                emoji_found = True
+                emoji_button_idx = i
+                break
+        self.assertTrue(emoji_found, "Expected emoji key not present in specials layout")
+
+        clicked = self.click_keyboard_button(emoji_key)
+        self.assertTrue(clicked, "Could not click emoji button")
+        self.wait_for_render(20)
+
+        self.assertTextareaText(emoji_key)
+        self.assertTrue(keyboard._textarea_emoji_font_applied)
+
+        after_font = textarea.get_style_text_font(lv.PART.MAIN)
+        self.assertTrue(after_font.get_line_height() >= base_font.get_line_height())
+
+        fallback_font = None
+        try:
+            fallback_font = after_font.fallback
+        except Exception:
+            fallback_font = None
+
+        self.assertIsNotNone(fallback_font)
