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()