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package mesh
import (
"io"
"testing"
"time"
"github.com/stretchr/testify/require"
)
type testConn struct {
io.Writer
io.Reader
}
func (testConn) SetDeadline(t time.Time) error {
return nil
}
func (testConn) SetReadDeadline(t time.Time) error {
return nil
}
func (testConn) SetWriteDeadline(t time.Time) error {
return nil
}
func connPair() (protocolIntroConn, protocolIntroConn) {
a := testConn{}
b := testConn{}
a.Reader, b.Writer = io.Pipe()
b.Reader, a.Writer = io.Pipe()
return &a, &b
}
func doIntro(t *testing.T, params protocolIntroParams) <-chan protocolIntroResults {
ch := make(chan protocolIntroResults, 1)
go func() {
res, err := params.doIntro()
require.Nil(t, err)
ch <- res
}()
return ch
}
func doProtocolIntro(t *testing.T, aver, bver byte, password []byte) byte {
aconn, bconn := connPair()
aresch := doIntro(t, protocolIntroParams{
MinVersion: ProtocolMinVersion,
MaxVersion: aver,
Features: map[string]string{"Name": "A"},
Conn: aconn,
Outbound: true,
Password: password,
})
bresch := doIntro(t, protocolIntroParams{
MinVersion: ProtocolMinVersion,
MaxVersion: bver,
Features: map[string]string{"Name": "B"},
Conn: bconn,
Outbound: false,
Password: password,
})
ares := <-aresch
bres := <-bresch
// Check that features were conveyed
require.Equal(t, "B", ares.Features["Name"])
require.Equal(t, "A", bres.Features["Name"])
// Check that Senders and Receivers work
go func() {
require.Nil(t, ares.Sender.Send([]byte("Hello from A")))
require.Nil(t, bres.Sender.Send([]byte("Hello from B")))
}()
data, err := bres.Receiver.Receive()
require.Nil(t, err)
require.Equal(t, "Hello from A", string(data))
data, err = ares.Receiver.Receive()
require.Nil(t, err)
require.Equal(t, "Hello from B", string(data))
require.Equal(t, ares.Version, bres.Version)
return ares.Version
}
func TestProtocolIntro(t *testing.T) {
require.Equal(t, 2, int(doProtocolIntro(t, 2, 2, nil)))
require.Equal(t, 2, int(doProtocolIntro(t, 2, 2, []byte("sekr1t"))))
require.Equal(t, 1, int(doProtocolIntro(t, 1, 2, nil)))
require.Equal(t, 1, int(doProtocolIntro(t, 1, 2, []byte("pa55"))))
require.Equal(t, 1, int(doProtocolIntro(t, 2, 1, nil)))
require.Equal(t, 1, int(doProtocolIntro(t, 2, 1, []byte("w0rd"))))
}
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