package p2p_test
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import (
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"net"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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p2p "github.com/tendermint/go-p2p"
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)
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func createMConnection(conn net.Conn) *p2p.MConnection {
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onReceive := func(chID byte, msgBytes []byte) {
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}
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onError := func(r interface{}) {
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}
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return createMConnectionWithCallbacks(conn, onReceive, onError)
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}
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func createMConnectionWithCallbacks(conn net.Conn, onReceive func(chID byte, msgBytes []byte), onError func(r interface{})) *p2p.MConnection {
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chDescs := []*p2p.ChannelDescriptor{&p2p.ChannelDescriptor{ID: 0x01, Priority: 1, SendQueueCapacity: 1}}
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return p2p.NewMConnection(conn, chDescs, onReceive, onError)
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}
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func TestMConnectionSend(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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server, client := net.Pipe()
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defer server.Close()
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defer client.Close()
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mconn := createMConnection(client)
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_, err := mconn.Start()
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require.Nil(err)
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defer mconn.Stop()
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msg := "Ant-Man"
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assert.True(mconn.Send(0x01, msg))
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// Note: subsequent Send/TrySend calls could pass because we are reading from
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// the send queue in a separate goroutine.
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server.Read(make([]byte, len(msg)))
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assert.True(mconn.CanSend(0x01))
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msg = "Spider-Man"
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assert.True(mconn.TrySend(0x01, msg))
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server.Read(make([]byte, len(msg)))
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assert.False(mconn.CanSend(0x05), "CanSend should return false because channel is unknown")
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assert.False(mconn.Send(0x05, "Absorbing Man"), "Send should return false because channel is unknown")
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}
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func TestMConnectionReceive(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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server, client := net.Pipe()
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defer server.Close()
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defer client.Close()
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receivedCh := make(chan []byte)
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errorsCh := make(chan interface{})
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onReceive := func(chID byte, msgBytes []byte) {
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receivedCh <- msgBytes
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}
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onError := func(r interface{}) {
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errorsCh <- r
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}
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mconn1 := createMConnectionWithCallbacks(client, onReceive, onError)
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_, err := mconn1.Start()
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require.Nil(err)
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defer mconn1.Stop()
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mconn2 := createMConnection(server)
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_, err = mconn2.Start()
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require.Nil(err)
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defer mconn2.Stop()
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msg := "Cyclops"
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assert.True(mconn2.Send(0x01, msg))
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select {
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case receivedBytes := <-receivedCh:
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assert.Equal([]byte(msg), receivedBytes[2:]) // first 3 bytes are internal
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case err := <-errorsCh:
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t.Fatalf("Expected %s, got %+v", msg, err)
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case <-time.After(500 * time.Millisecond):
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t.Fatalf("Did not receive %s message in 500ms", msg)
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}
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}
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func TestMConnectionStatus(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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server, client := net.Pipe()
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defer server.Close()
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defer client.Close()
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mconn := createMConnection(client)
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_, err := mconn.Start()
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require.Nil(err)
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defer mconn.Stop()
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status := mconn.Status()
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assert.NotNil(status)
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assert.Zero(status.Channels[0].SendQueueSize)
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}
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func TestMConnectionStopsAndReturnsError(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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server, client := net.Pipe()
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defer server.Close()
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defer client.Close()
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receivedCh := make(chan []byte)
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errorsCh := make(chan interface{})
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onReceive := func(chID byte, msgBytes []byte) {
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receivedCh <- msgBytes
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}
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onError := func(r interface{}) {
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errorsCh <- r
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}
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mconn := createMConnectionWithCallbacks(client, onReceive, onError)
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_, err := mconn.Start()
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require.Nil(err)
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defer mconn.Stop()
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client.Close()
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select {
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case receivedBytes := <-receivedCh:
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t.Fatalf("Expected error, got %v", receivedBytes)
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case err := <-errorsCh:
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assert.NotNil(err)
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assert.False(mconn.IsRunning())
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case <-time.After(500 * time.Millisecond):
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t.Fatal("Did not receive error in 500ms")
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}
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}
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