diff --git a/meshtastic/__main__.py b/meshtastic/__main__.py
index c5eea07..cbd67c9 100644
--- a/meshtastic/__main__.py
+++ b/meshtastic/__main__.py
@@ -27,7 +27,7 @@ def onReceive(packet, interface):
     args = our_globals.get_args()
     try:
         d = packet.get('decoded')
-        logging.debug(f'd:{d}')
+        logging.debug(f'in onReceive() d:{d}')
 
         # Exit once we receive a reply
         if args and args.sendtext and packet["to"] == interface.myInfo.my_node_num and d["portnum"] == portnums_pb2.PortNum.TEXT_MESSAGE_APP:
@@ -37,12 +37,10 @@ def onReceive(packet, interface):
         if args and args.reply:
             msg = d.get('text')
             if msg:
-                #shortName = packet['decoded']['shortName']
                 rxSnr = packet['rxSnr']
                 hopLimit = packet['hopLimit']
                 print(f"message: {msg}")
-                reply = "got msg \'{}\' with rxSnr: {} and hopLimit: {}".format(
-                    msg, rxSnr, hopLimit)
+                reply = "got msg \'{}\' with rxSnr: {} and hopLimit: {}".format(msg, rxSnr, hopLimit)
                 print("Sending reply: ", reply)
                 interface.sendText(reply)
 
diff --git a/meshtastic/tests/test_main.py b/meshtastic/tests/test_main.py
index 83f212a..d90c931 100644
--- a/meshtastic/tests/test_main.py
+++ b/meshtastic/tests/test_main.py
@@ -1234,14 +1234,113 @@ def test_main_setchan(capsys, reset_globals):
 
 
 @pytest.mark.unit
-def test_main_onReceive_empty(reset_globals):
+def test_main_onReceive_empty(caplog, reset_globals):
     """Test onReceive"""
     sys.argv = ['']
     Globals.getInstance().set_args(sys.argv)
     iface = MagicMock(autospec=SerialInterface)
     packet = {'decoded': 'foo'}
-    onReceive(packet, iface)
-    # TODO: how do we know we actually called it?
+    with caplog.at_level(logging.DEBUG):
+        onReceive(packet, iface)
+    assert re.search(r'in onReceive', caplog.text, re.MULTILINE)
+
+
+#    TODO: use this captured position app message (might want/need in the future)
+#    packet = {
+#            'to': 4294967295,
+#            'decoded': {
+#                'portnum': 'POSITION_APP',
+#                'payload': "M69\306a"
+#                },
+#            'id': 334776976,
+#            'hop_limit': 3
+#            }
+
+@pytest.mark.unit
+def test_main_onReceive_with_sendtext(caplog, reset_globals):
+    """Test onReceive with sendtext
+       The entire point of this test is to make sure the interface.close() call
+       is made in onReceive().
+    """
+    sys.argv = ['', '--sendtext', 'hello']
+    Globals.getInstance().set_args(sys.argv)
+
+    # Note: 'TEXT_MESSAGE_APP' value is 1
+    packet = {
+            'to': 4294967295,
+            'decoded': {
+                'portnum': 1,
+                'payload': "hello"
+                },
+            'id': 334776977,
+            'hop_limit': 3,
+            'want_ack': True
+            }
+
+    iface = MagicMock(autospec=SerialInterface)
+    iface.myInfo.my_node_num = 4294967295
+
+    with patch('meshtastic.serial_interface.SerialInterface', return_value=iface) as mo:
+        with caplog.at_level(logging.DEBUG):
+            main()
+            onReceive(packet, iface)
+        assert re.search(r'in onReceive', caplog.text, re.MULTILINE)
+        mo.assert_called()
+
+
+@pytest.mark.unit
+def test_main_onReceive_with_reply(caplog, capsys, reset_globals):
+    """Test onReceive with a reply
+       To capture: on one device run '--sendtext aaa --reply' and on another
+       device run '--sendtext bbb --reply', then back to the first device and
+       run '--sendtext aaa2 --reply'. You should now see a "Sending reply" message.
+    """
+    sys.argv = ['', '--sendtext', 'hello', '--reply']
+    Globals.getInstance().set_args(sys.argv)
+
+    # Note: 'TEXT_MESSAGE_APP' value is 1
+
+    send_packet = {
+            'to': 4294967295,
+            'decoded': {
+                'portnum': 1,
+                'payload': "hello"
+                },
+            'id': 334776977,
+            'hop_limit': 3,
+            'want_ack': True
+            }
+
+    reply_packet = {
+            'from': 682968668,
+            'to': 4294967295,
+            'decoded': {
+                'portnum': 'TEXT_MESSAGE_APP',
+                'payload': b'bbb',
+                'text': 'bbb'
+                },
+            'id': 1709936182,
+            'rxTime': 1640381999,
+            'rxSnr': 6.0,
+            'hopLimit': 3,
+            'raw': 'faked',
+            'fromId': '!28b5465c',
+            'toId': '^all'
+            }
+
+    iface = MagicMock(autospec=SerialInterface)
+    iface.myInfo.my_node_num = 4294967295
+
+    with patch('meshtastic.serial_interface.SerialInterface', return_value=iface) as mo:
+        with caplog.at_level(logging.DEBUG):
+            main()
+            onReceive(send_packet, iface)
+            onReceive(reply_packet, iface)
+        assert re.search(r'in onReceive', caplog.text, re.MULTILINE)
+        out, err = capsys.readouterr()
+        assert re.search(r'got msg ', out, re.MULTILINE)
+        assert err == ''
+        mo.assert_called()
 
 
 @pytest.mark.unit
@@ -1371,6 +1470,7 @@ def test_main_gpio_rd(caplog, capsys, reset_globals):
     channel.settings.psk = b'\x01'
 
     packet = {
+
             'from': 682968668,
             'to': 682968612,
             'channel': 1,