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package harness
import (
"net"
"strings"
"time"
"github.com/stretchr/testify/assert"
)
type EmailServer interface {
ExpectMessage(address string, keywords ...string)
WaitAndAssert()
}
type emailServer struct {
h *Harness
mp *mailpit
}
func findOpenPorts(num int) ([]string, error) {
var listeners []net.Listener
for range num {
ln, err := net.Listen("tcp", "localhost:0")
if err != nil {
for _, l := range listeners {
l.Close()
}
return nil, err
}
listeners = append(listeners, ln)
}
var addrs []string
for _, l := range listeners {
addrs = append(addrs, l.Addr().String())
l.Close()
}
return addrs, nil
}
func isListening(addr string) bool {
c, err := net.Dial("tcp", addr)
if err != nil {
return false
}
c.Close()
return true
}
func newEmailServer(h *Harness) *emailServer {
mp := newMailpit(h.t)
h.t.Logf("mailpit: smtp: %s", mp.smtpAddr)
h.t.Logf("mailpit: api: %s", mp.apiAddr)
return &emailServer{
h: h,
mp: mp,
}
}
func (e *emailServer) Addr() string { return e.mp.smtpAddr }
func (h *Harness) Email(id string) string { return h.emailG.Get(id) }
func (h *Harness) SMTP() EmailServer { return h.email }
func (e *emailServer) ExpectMessage(address string, keywords ...string) {
e.h.t.Helper()
gotMessage := assert.Eventuallyf(e.h.t, func() bool {
found := e.mp.ReadMessage(address, keywords...)
return found
}, 15*time.Second, 10*time.Millisecond, "expected to find email: address=%s; keywords=%v", address, keywords)
if gotMessage {
return
}
msgs := e.mp.UnreadMessages()
e.h.t.Fatalf("timeout waiting for email; Got:\n%v", msgs)
}
type emailMessage struct {
address []string
body string
}
func (e *emailServer) WaitAndAssert() {
e.h.t.Helper()
for _, msg := range e.mp.UnreadMessages() {
e.h.t.Errorf("unexpected message: to=%s; body=%s", strings.Join(msg.address, ","), msg.body)
}
}
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