diff --git a/pymodbus/framer/ascii_framer.py b/pymodbus/framer/ascii_framer.py
index d0eaad1e9..957ef94f8 100644
--- a/pymodbus/framer/ascii_framer.py
+++ b/pymodbus/framer/ascii_framer.py
@@ -45,6 +45,9 @@ def __init__(self, decoder, client=None):
     # ----------------------------------------------------------------------- #
     # Private Helper Functions
     # ----------------------------------------------------------------------- #
+    def _process(self, callback, error=False):
+        """Process incoming packets irrespective error condition."""
+
     def decode_data(self, data):
         """Decode data."""
         if len(data) > 1:
diff --git a/pymodbus/framer/binary_framer.py b/pymodbus/framer/binary_framer.py
index 123933a22..2ebb17c68 100644
--- a/pymodbus/framer/binary_framer.py
+++ b/pymodbus/framer/binary_framer.py
@@ -56,6 +56,9 @@ def __init__(self, decoder, client=None):
     # ----------------------------------------------------------------------- #
     # Private Helper Functions
     # ----------------------------------------------------------------------- #
+    def _process(self, callback, error=False):
+        """Process incoming packets irrespective error condition."""
+
     def decode_data(self, data):
         """Decode data."""
         if len(data) > self._hsize:
diff --git a/test/test_framers.py b/test/test_framers.py
index 6e24a17e6..e3580cea0 100644
--- a/test/test_framers.py
+++ b/test/test_framers.py
@@ -35,12 +35,6 @@ def fixture_ascii_framer():
     return ModbusAsciiFramer(ClientDecoder())
 
 
-# @pytest.fixture
-# def binary_framer():
-#     """Binary framer."""
-#     return ModbusBinaryFramer(ClientDecoder())
-
-
 @pytest.mark.parametrize(
     "framer",
     [
@@ -98,14 +92,6 @@ def test_framer_initialization(framer):
         ]
 
 
-@pytest.mark.parametrize("data", [(b"", {}), (b"abcd", {"fcode": 98, "slave": 97})])
-def test_decode_data(rtu_framer, data):
-    """Test decode data."""
-    data, expected = data
-    decoded = rtu_framer.decode_data(data)
-    assert decoded == expected
-
-
 @pytest.mark.parametrize(
     "data",
     [
@@ -301,12 +287,6 @@ def test_rtu_incoming_packet(rtu_framer, data):
         assert mock_reset.call_count == (1 if reset_called else 0)
 
 
-def test_build_packet(rtu_framer):
-    """Test build packet."""
-    message = ReadCoilsRequest(1, 10)
-    assert rtu_framer.buildPacket(message) == TEST_MESSAGE
-
-
 def test_send_packet(rtu_framer):
     """Test send packet."""
     message = TEST_MESSAGE
@@ -403,3 +383,60 @@ def _handle_response(_reply):
     framer = ModbusSocketFramer(ClientDecoder())
     framer.processIncomingPacket(message, _handle_response, slave=0)
     assert response_ok, "Response is valid, but not accepted"
+
+# ---- 100% coverage
+@pytest.mark.parametrize(
+    ("framer", "message"),
+    [
+        (ModbusAsciiFramer, b':00010001000AF4\r\n',),
+        (ModbusBinaryFramer, b'{\x00\x01\x00\x01\x00\n\xec\x1c}',),
+        (ModbusRtuFramer, b"\x00\x01\x00\x01\x00\n\xec\x1c",),
+        (ModbusSocketFramer, b'\x00\x00\x00\x00\x00\x06\x00\x01\x00\x01\x00\n',),
+    ]
+)
+def test_build_packet(framer, message):
+    """Test build packet."""
+    test_framer =  framer(ClientDecoder())
+    request = ReadCoilsRequest(1, 10)
+    assert test_framer.buildPacket(request) == message
+
+
+@pytest.mark.parametrize(
+    ("framer", "message"),
+    [
+        (ModbusAsciiFramer, b':00010001000AF4\r\n',),
+        (ModbusBinaryFramer, b'{\x00\x01\x00\x01\x00\n\xec\x1c}',),
+        (ModbusRtuFramer, b"\x00\x01\x00\x01\x00\n\xec\x1c",),
+        (ModbusSocketFramer, b'\x00\x00\x00\x00\x00\x06\x00\x01\x00\x01\x00\n',),
+    ]
+)
+def test_processincomingpacket(framer, message):
+    """Test processIncomingPacket."""
+    test_framer =  framer(ClientDecoder())
+    with mock.patch.object(
+        framer,
+        "_process",
+        wraps=test_framer._process,  # pylint: disable=protected-access
+    ), mock.patch.object(
+        test_framer, "resetFrame", wraps=test_framer.resetFrame
+    ):
+        test_framer.processIncomingPacket(message, mock.Mock(), 0x01)
+
+@pytest.mark.parametrize(
+    ("framer", "message"),
+    [
+        (ModbusAsciiFramer, b':61620001000AF4\r\n',),
+        (ModbusBinaryFramer, b'{\x61\x62\x00\x01\x00\n\xec\x1c}',),
+        (ModbusRtuFramer, b"\x61\x62\x00\x01\x00\n\xec\x1c",),
+        (ModbusSocketFramer, b'\x00\x00\x00\x00\x00\x06\x61\x62\x00\x01\x00\n',),
+    ]
+)
+@pytest.mark.parametrize("expected", [{"fcode": 98, "slave": 97}])
+def test_decode_data(framer, message, expected):
+    """Test decode data."""
+    test_framer =  framer(ClientDecoder())
+    decoded = test_framer.decode_data(b'')
+    assert decoded == {}
+    decoded = test_framer.decode_data(message)
+    assert decoded["fcode"] == expected["fcode"]
+    assert decoded["slave"] == expected["slave"]