diff --git a/meshtastic/tests/test_main.py b/meshtastic/tests/test_main.py
index a5a345a..18fa497 100644
--- a/meshtastic/tests/test_main.py
+++ b/meshtastic/tests/test_main.py
@@ -724,11 +724,66 @@ def test_main_sendtext_with_dest(mock_findPorts, mock_serial, mocked_open, mock_
             assert re.search(r"Warning: There were no self.nodes.", caplog.text, re.MULTILINE)
             assert err == ""
 
+@pytest.mark.unit
+@pytest.mark.usefixtures("reset_mt_config")
+def test_main_removeposition_invalid(capsys):
+    """Test --remove-position with an invalid dest"""
+    sys.argv = ["", "--remove-position", "--dest", "!12345678"]
+    mt_config.args = sys.argv
+    iface = MagicMock(autospec=SerialInterface)
+    with patch("meshtastic.serial_interface.SerialInterface", return_value=iface) as mo:
+        main()
+        out, err = capsys.readouterr()
+        assert re.search(r"Connected to radio", out, re.MULTILINE)
+        assert re.search(r"remote nodes is not supported", out, re.MULTILINE)
+        assert err == ""
+        mo.assert_called()
+
+@pytest.mark.unit
+@pytest.mark.usefixtures("reset_mt_config")
+def test_main_setlat_invalid(capsys):
+    """Test --setlat with an invalid dest"""
+    sys.argv = ["", "--setlat", "37.5", "--dest", "!12345678"]
+    mt_config.args = sys.argv
+    iface = MagicMock(autospec=SerialInterface)
+    with patch("meshtastic.serial_interface.SerialInterface", return_value=iface) as mo:
+        main()
+        out, err = capsys.readouterr()
+        assert re.search(r"Connected to radio", out, re.MULTILINE)
+        assert re.search(r"remote nodes is not supported", out, re.MULTILINE)
+        assert err == ""
+        mo.assert_called()
+
+@pytest.mark.unit
+@pytest.mark.usefixtures("reset_mt_config")
+def test_main_removeposition(capsys):
+    """Test --remove-position"""
+    sys.argv = ["", "--remove-position"]
+    mt_config.args = sys.argv
+
+    mocked_node = MagicMock(autospec=Node)
+
+    def mock_removeFixedPosition():
+        print("inside mocked removeFixedPosition")
+
+    mocked_node.removeFixedPosition.side_effect = mock_removeFixedPosition
+
+    iface = MagicMock(autospec=SerialInterface)
+    iface.localNode = mocked_node
+
+    with patch("meshtastic.serial_interface.SerialInterface", return_value=iface) as mo:
+        main()
+        out, err = capsys.readouterr()
+        assert re.search(r"Connected to radio", out, re.MULTILINE)
+        assert re.search(r"Removing fixed position", out, re.MULTILINE)
+        assert re.search(r"inside mocked removeFixedPosition", out, re.MULTILINE)
+        assert err == ""
+        mo.assert_called()
 
 @pytest.mark.unit
 @pytest.mark.usefixtures("reset_mt_config")
 def test_main_setlat(capsys):
-    """Test --sendlat"""
+    """Test --setlat"""
     sys.argv = ["", "--setlat", "37.5"]
     mt_config.args = sys.argv
 
diff --git a/meshtastic/tests/test_util.py b/meshtastic/tests/test_util.py
index 9961f4b..74f66d9 100644
--- a/meshtastic/tests/test_util.py
+++ b/meshtastic/tests/test_util.py
@@ -65,6 +65,7 @@ def test_fromStr():
     assert fromStr("123") == 123
     assert fromStr("abc") == "abc"
     assert fromStr("123456789") == 123456789
+    assert fromStr("base64:Zm9vIGJhciBiYXo=") == b"foo bar baz"
 
 
 @pytest.mark.unitslow