diff --git a/protocols/arp_test.go b/protocols/arp_test.go
new file mode 100644
index 0000000..06a5a3a
--- /dev/null
+++ b/protocols/arp_test.go
@@ -0,0 +1,155 @@
+package protocols
+
+import (
+	"net"
+	"reflect"
+	"testing"
+)
+
+func TestARPPacketFromBytes(t *testing.T) {
+	tests := []struct {
+		name           string
+		raw            []byte
+		expectedPacket *ARPPacket
+		expectedErr    error
+	}{
+		{
+			name: "Valid ARP Request Packet",
+			raw: []byte{
+				// Ethernet Frame Header
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Destination MAC
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Source MAC
+				0x08, 0x06, // EtherType (ARP)
+
+				// ARP Packet
+				0x00, 0x01, // Hardware Type (Ethernet)
+				0x08, 0x00, // Protocol Type (IPv4)
+				0x06,       // Hardware Address Length (6 bytes)
+				0x04,       // Protocol Address Length (4 bytes)
+				0x00, 0x01, // Operation (ARP Request)
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Sender HW Address
+				0xc0, 0xa8, 0x01, 0x01, // Sender Protocol Address (192.168.1.1)
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Target HW Address
+				0xc0, 0xa8, 0x01, 0x02, // Target Protocol Address (192.168.1.2)
+			},
+			expectedPacket: &ARPPacket{
+				EthFrame: EthernetFrame{
+					DestinationMAC: net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e},
+					SourceMAC:      net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f},
+					EtherType:      0x0806,
+					Payload: []byte{
+						0x00, 0x01, 0x08, 0x00, 0x06, 0x04, 0x00, 0x01,
+						0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, 0xc0, 0xa8,
+						0x01, 0x01, 0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f,
+						0xc0, 0xa8, 0x01, 0x02,
+					},
+				},
+				HardwareType:    0x0001,
+				ProtocolType:    0x0800,
+				HardwareAddrLen: 6,
+				ProtocolAddrLen: 4,
+				Operation:       0x0001,
+				SenderHWAddr:    net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e},
+				SenderProtoAddr: net.IP{0xc0, 0xa8, 0x01, 0x01},
+				TargetHWAddr:    net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f},
+				TargetProtoAddr: net.IP{0xc0, 0xa8, 0x01, 0x02},
+			},
+			expectedErr: nil,
+		},
+		{
+			name: "Valid ARP Reply Packet",
+			raw: []byte{
+				// Ethernet Frame Header
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Destination MAC
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Source MAC
+				0x08, 0x06, // EtherType (ARP)
+
+				// ARP Packet
+				0x00, 0x01, // Hardware Type (Ethernet)
+				0x08, 0x00, // Protocol Type (IPv4)
+				0x06,       // Hardware Address Length (6 bytes)
+				0x04,       // Protocol Address Length (4 bytes)
+				0x00, 0x02, // Operation (ARP Reply)
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Sender HW Address
+				0xc0, 0xa8, 0x01, 0x02, // Sender Protocol Address (192.168.1.2)
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Target HW Address
+				0xc0, 0xa8, 0x01, 0x01, // Target Protocol Address (192.168.1.1)
+			},
+			expectedPacket: &ARPPacket{
+				EthFrame: EthernetFrame{
+					DestinationMAC: net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f},
+					SourceMAC:      net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e},
+					EtherType:      0x0806,
+					Payload: []byte{
+						0x00, 0x01, 0x08, 0x00, 0x06, 0x04, 0x00, 0x02,
+						0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, 0xc0, 0xa8,
+						0x01, 0x02, 0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e,
+						0xc0, 0xa8, 0x01, 0x01,
+					},
+				},
+				HardwareType:    0x0001,
+				ProtocolType:    0x0800,
+				HardwareAddrLen: 6,
+				ProtocolAddrLen: 4,
+				Operation:       0x0002,
+				SenderHWAddr:    net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f},
+				SenderProtoAddr: net.IP{0xc0, 0xa8, 0x01, 0x02},
+				TargetHWAddr:    net.HardwareAddr{0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e},
+				TargetProtoAddr: net.IP{0xc0, 0xa8, 0x01, 0x01},
+			},
+			expectedErr: nil,
+		},
+		{
+			name: "Invalid ARP Packet (Too Short)",
+			raw: []byte{
+				// Ethernet Frame Header
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Destination MAC
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Source MAC
+				0x08, 0x06, // EtherType (ARP)
+
+				// ARP Packet (too short)
+				0x00, 0x01,
+				0x08, 0x00,
+				0x06,
+				0x04,
+			},
+			expectedPacket: nil,
+			expectedErr:    errInvalidARPPacket,
+		},
+		{
+			name: "Invalid ARP Packet (Malformed)",
+			raw: []byte{
+				// Ethernet Frame Header
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Destination MAC
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Source MAC
+				0x08, 0x06, // EtherType (ARP)
+
+				// ARP Packet (malformed)
+				0x00, 0x01, // Hardware Type
+				0x08, 0x00, // Protocol Type
+				0x06,       // Hardware Address Length
+				0x04,       // Protocol Address Length
+				0x00, 0x01, // Operation
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5e, // Sender HW Address
+				0xc0, 0xa8, 0x01, 0x01, // Sender Protocol Address
+				0x00, 0x1a, 0x2b, 0x3c, 0x4d, 0x5f, // Target HW Address
+				// Missing Target Protocol Address
+			},
+			expectedPacket: nil,
+			expectedErr:    errInvalidARPPacket,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			p, err := ARPPacketFromBytes(tt.raw)
+			if tt.expectedErr != err {
+				t.Errorf("expected error to be: %v - got: %v", tt.expectedErr, err)
+			}
+
+			if !reflect.DeepEqual(tt.expectedPacket, p) {
+				t.Errorf("expected packet to be %v - got %v", tt.expectedPacket, p)
+			}
+		})
+	}
+}