Add more tests: Auto-forwarding, sending to an alias and auto-reply

Add simple test for auto-reply

tests/forward_test.py

@@ -0,0 +1,87 @@
+import smtplib
+import imaplib
+import time
+import sys
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+import ntpath
+from email.mime.base import MIMEBase
+from email import encoders
+
+msg = MIMEMultipart()
+msg['From'] = "admin@mailu.io"
+msg['To'] = "forwardinguser@mailu.io"
+msg['Subject'] = "Forward Test"
+msg.attach(MIMEText("Forward Text", 'plain'))
+
+try:
+    smtp_server = smtplib.SMTP('localhost')
+    smtp_server.set_debuglevel(1)
+    smtp_server.connect('localhost', 587)
+    smtp_server.ehlo()
+    smtp_server.starttls()
+    smtp_server.ehlo()
+    smtp_server.login("admin@mailu.io", "password")
+
+    smtp_server.sendmail("admin@mailu.io", "forwardinguser@mailu.io", msg.as_string())
+    smtp_server.quit()
+except:
+    sys.exit(25)
+
+time.sleep(30)
+
+# check forward target
+try:
+    imap_server = imaplib.IMAP4_SSL('localhost')
+    imap_server.login('user@mailu.io', 'password')
+except Exception as exc:
+    print("Failed with:", exc)
+    sys.exit(110)
+
+stat, count = imap_server.select('inbox')
+try:
+    stat, data = imap_server.fetch(count[0], '(UID BODY[TEXT])')
+except :
+    sys.exit(99)
+
+if "Forward Text" in str(data[0][1]):
+    print("Success: Mail is in forwarded inbox")
+else:
+    print("Failed receiving email in forwarded inbox")
+    sys.exit(99)
+
+typ, data = imap_server.search(None, 'ALL')
+for num in data[0].split():
+   imap_server.store(num, '+FLAGS', '\\Deleted')
+imap_server.expunge()
+
+imap_server.close()
+imap_server.logout()
+
+# check original user
+try:
+    imap_server = imaplib.IMAP4_SSL('localhost')
+    imap_server.login('forwardinguser@mailu.io', 'password')
+except Exception as exc:
+    print("Failed with:", exc)
+    sys.exit(110)
+
+stat, count = imap_server.select('inbox')
+try:
+    stat, data = imap_server.fetch(count[0], '(UID BODY[TEXT])')
+except :
+    sys.exit(99)
+
+if "Forward Text" in str(data[0][1]):
+    print("Success: Mail is in forwarding inbox")
+else:
+    print("Failed receiving email in forwarding inbox")
+    sys.exit(99)
+
+typ, data = imap_server.search(None, 'ALL')
+for num in data[0].split():
+   imap_server.store(num, '+FLAGS', '\\Deleted')
+imap_server.expunge()
+
+imap_server.close()
+imap_server.logout()