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package network
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
// TestPeerToPeerCommunication tests if two peers can communicate.
func TestPeerToPeerCommunication(t *testing.T) {
// Create a mock of the first peer (peer-1)
peer1IP := "127.0.0.1"
peer1Port := 9001
peer1 := NewTCPNetwork("peer-1", peer1IP, peer1Port, func() {})
// Create a mock of the second peer (peer-2)
peer2IP := "127.0.0.1"
peer2Port := 9002
peer2 := NewTCPNetwork("peer-2", peer2IP, peer2Port, func() {})
// Register a message handler on peer-2 to receive the message from peer-1
peer2.RegisterHandler("chat", func(msg Message) {
assert.Equal(t, "peer-1", msg.Source.ID)
assert.Equal(t, "Hey from peer-1!", string(msg.Payload))
})
// Start the first peer and add the second peer
go peer1.AddPeer("peer-2", peer2IP, peer2Port)
go peer2.AddPeer("peer-1", peer1IP, peer1Port)
// Wait for the connections to be established
// You might need a little more time based on network delay and retry logic
time.Sleep(5 * time.Second)
// Send a message from peer-1 to peer-2
err := peer1.Send("peer-2", "chat", []byte("Hey from peer-1!"))
assert.NoError(t, err)
// Allow some time for the message to be received and handled
time.Sleep(2 * time.Second)
}
// TestSendFailure tests if sending a message fails when no connection exists.
func TestSendFailure(t *testing.T) {
peer1 := NewTCPNetwork("peer-1", "127.0.0.1", 9001, func() {})
_ = NewTCPNetwork("peer-2", "127.0.0.1", 9002, func() {})
// Attempt to send a message without establishing a connection first
err := peer1.Send("peer-2", "chat", []byte("Message without connection"))
assert.Error(t, err, "Expected error when sending to a non-connected peer")
}
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