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|
package client
import (
"bufio"
"bytes"
"io"
"net"
"strings"
"testing"
"github.com/emersion/go-imap"
)
type cmdScanner struct {
scanner *bufio.Scanner
}
func (s *cmdScanner) ScanLine() string {
s.scanner.Scan()
return s.scanner.Text()
}
func (s *cmdScanner) ScanCmd() (tag string, cmd string) {
parts := strings.SplitN(s.ScanLine(), " ", 2)
return parts[0], parts[1]
}
func newCmdScanner(r io.Reader) *cmdScanner {
return &cmdScanner{
scanner: bufio.NewScanner(r),
}
}
type serverConn struct {
*cmdScanner
net.Conn
net.Listener
}
func (c *serverConn) Close() error {
if err := c.Conn.Close(); err != nil {
return err
}
return c.Listener.Close()
}
func (c *serverConn) WriteString(s string) (n int, err error) {
return io.WriteString(c.Conn, s)
}
func newTestClient(t *testing.T) (c *Client, s *serverConn) {
return newTestClientWithGreeting(t, "* OK [CAPABILITY IMAP4rev1 STARTTLS AUTH=PLAIN UNSELECT] Server ready.\r\n")
}
func newTestClientWithGreeting(t *testing.T, greeting string) (c *Client, s *serverConn) {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
done := make(chan struct{})
go func() {
conn, err := l.Accept()
if err != nil {
panic(err)
}
if _, err := io.WriteString(conn, greeting); err != nil {
panic(err)
}
s = &serverConn{newCmdScanner(conn), conn, l}
close(done)
}()
c, err = Dial(l.Addr().String())
if err != nil {
t.Fatal(err)
}
<-done
return
}
func setClientState(c *Client, state imap.ConnState, mailbox *imap.MailboxStatus) {
c.locker.Lock()
c.state = state
c.mailbox = mailbox
c.locker.Unlock()
}
func TestClient(t *testing.T) {
c, s := newTestClient(t)
defer s.Close()
if ok, err := c.Support("IMAP4rev1"); err != nil {
t.Fatal("c.Support(IMAP4rev1) =", err)
} else if !ok {
t.Fatal("c.Support(IMAP4rev1) = false, want true")
}
}
func TestClient_SetDebug(t *testing.T) {
c, s := newTestClient(t)
defer s.Close()
var b bytes.Buffer
done := make(chan error)
go func() {
c.SetDebug(&b)
done <- nil
}()
if tag, cmd := s.ScanCmd(); cmd != "NOOP" {
t.Fatal("Bad command:", cmd)
} else {
s.WriteString(tag + " OK NOOP completed.\r\n")
}
// wait for SetDebug to finish.
<-done
go func() {
_, err := c.Capability()
done <- err
}()
tag, cmd := s.ScanCmd()
if cmd != "CAPABILITY" {
t.Fatal("Bad command:", cmd)
}
s.WriteString("* CAPABILITY IMAP4rev1\r\n")
s.WriteString(tag + " OK CAPABILITY completed.\r\n")
if err := <-done; err != nil {
t.Fatal("c.Capability() =", err)
}
if b.Len() == 0 {
t.Error("empty debug buffer")
}
}
func TestClient_unilateral(t *testing.T) {
c, s := newTestClient(t)
defer s.Close()
setClientState(c, imap.SelectedState, imap.NewMailboxStatus("INBOX", nil))
updates := make(chan Update, 1)
c.Updates = updates
s.WriteString("* 42 EXISTS\r\n")
if update, ok := (<-updates).(*MailboxUpdate); !ok || update.Mailbox.Messages != 42 {
t.Errorf("Invalid messages count: expected %v but got %v", 42, update.Mailbox.Messages)
}
s.WriteString("* 587 RECENT\r\n")
if update, ok := (<-updates).(*MailboxUpdate); !ok || update.Mailbox.Recent != 587 {
t.Errorf("Invalid recent count: expected %v but got %v", 587, update.Mailbox.Recent)
}
s.WriteString("* 65535 EXPUNGE\r\n")
if update, ok := (<-updates).(*ExpungeUpdate); !ok || update.SeqNum != 65535 {
t.Errorf("Invalid expunged sequence number: expected %v but got %v", 65535, update.SeqNum)
}
s.WriteString("* 431 FETCH (FLAGS (\\Seen))\r\n")
if update, ok := (<-updates).(*MessageUpdate); !ok || update.Message.SeqNum != 431 {
t.Errorf("Invalid expunged sequence number: expected %v but got %v", 431, update.Message.SeqNum)
}
s.WriteString("* OK Reticulating splines...\r\n")
if update, ok := (<-updates).(*StatusUpdate); !ok || update.Status.Info != "Reticulating splines..." {
t.Errorf("Invalid info: got %v", update.Status.Info)
}
s.WriteString("* NO Kansai band competition is in 30 seconds !\r\n")
if update, ok := (<-updates).(*StatusUpdate); !ok || update.Status.Info != "Kansai band competition is in 30 seconds !" {
t.Errorf("Invalid warning: got %v", update.Status.Info)
}
s.WriteString("* BAD Battery level too low, shutting down.\r\n")
if update, ok := (<-updates).(*StatusUpdate); !ok || update.Status.Info != "Battery level too low, shutting down." {
t.Errorf("Invalid error: got %v", update.Status.Info)
}
}
|
