Forward keypress bug fixed.

tests/unit/test_pty_terminal_sequences.py

@@ -217,6 +217,35 @@ def test_pty_backspace_with_fenrir_key_synthesizes_shortcut_events():
     assert second_event["data"]["event_state"] == 0
 
 
+@pytest.mark.unit
+@pytest.mark.parametrize(
+    "sequence",
+    [
+        b"\x08",
+        b"\x1b[3~",
+        b"\x1b[3;5~",
+        b"\x1b[27;5;8~",
+        b"\x1b[27;5;127~",
+        b"\x1b[8;5u",
+        b"\x1b[127;5u",
+    ],
+)
+def test_pty_xterm_backspace_variants_with_fenrir_key_synthesize_shortcut_events(
+    sequence,
+):
+    pty_driver = PtyDriver()
+    event_queue = Mock()
+    pty_driver.env = {
+        "input": {"curr_input": ["KEY_FENRIR"]},
+    }
+
+    handled = pty_driver.synthesize_backspace_shortcut(sequence, event_queue)
+
+    assert handled is True
+    first_event = event_queue.put.call_args_list[0].args[0]
+    assert first_event["data"]["event_name"] == "KEY_BACKSPACE"
+
+
 @pytest.mark.unit
 def test_pty_plain_backspace_is_not_synthesized():
     pty_driver = PtyDriver()
@@ -229,3 +258,17 @@ def test_pty_plain_backspace_is_not_synthesized():
 
     assert handled is False
     event_queue.put.assert_not_called()
+
+
+@pytest.mark.unit
+def test_pty_plain_delete_sequence_is_not_synthesized():
+    pty_driver = PtyDriver()
+    event_queue = Mock()
+    pty_driver.env = {
+        "input": {"curr_input": []},
+    }
+
+    handled = pty_driver.synthesize_backspace_shortcut(b"\x1b[3~", event_queue)
+
+    assert handled is False
+    event_queue.put.assert_not_called()

tests/unit/test_x11_terminal_mode.py

@@ -85,6 +85,25 @@ def test_x11_key_name_mapping_for_keypad_and_capslock():
     assert x11.keysym_name_to_key_name("_") == "KEY_MINUS"
 
 
+@pytest.mark.unit
+@pytest.mark.parametrize(
+    ("keysym_name", "key_name"),
+    [
+        ("BackSpace", "KEY_BACKSPACE"),
+        ("Tab", "KEY_TAB"),
+        ("Return", "KEY_ENTER"),
+        ("Escape", "KEY_ESC"),
+        ("Delete", "KEY_DELETE"),
+    ],
+)
+def test_x11_special_keysyms_use_symbolic_names(keysym_name, key_name):
+    x11 = X11Driver()
+    resolved_name = x11.keysym_to_name(XK.string_to_keysym(keysym_name))
+
+    assert resolved_name == keysym_name
+    assert x11.keysym_name_to_key_name(resolved_name) == key_name
+
+
 @pytest.mark.unit
 def test_x11_keycode_mapping_prefers_keypad_aliases():
     x11 = X11Driver()