tests: added test for backup functionality

test/test_backup.py

@@ -0,0 +1,45 @@
+import pytest
+from time import sleep
+from subprocess import check_call, check_output
+import smtplib
+
+from settings import *
+from common import random_id
+from test_mail import new_message, check_imap_received
+
+
+def test_backup_mail():
+    # send a mail, to ensure we have something to backup
+    msg, subject = new_message(TEST_ADDRESS, TEST_ADDRESS)
+    s = smtplib.SMTP(TEST_DOMAIN, 587)
+    s.starttls()
+    s.login(TEST_ADDRESS, TEST_PASSWORD)
+    s.sendmail(TEST_ADDRESS, [TEST_ADDRESS], msg)
+    s.quit()
+    
+    # trigger a backup
+    sleep(2)
+    cmd_ssh = "sshpass -p vagrant ssh vagrant@{} -p {} ".format(TEST_SERVER, TEST_PORT)
+    cmd_count = cmd_ssh + "ls -l /home/user-data/backup/encrypted | wc -l"
+    num_backup_files = int(check_output(cmd_count, shell=True))
+    cmd = cmd_ssh + "sudo /vagrant/management/backup.py"
+    check_call(cmd, shell=True)
+    num_backup_files_new = int(check_output(cmd_count, shell=True))
+    assert num_backup_files_new > num_backup_files
+    
+    # delete mail
+    assert check_imap_received(subject)
+    assert not check_imap_received(subject)
+    
+    # restore backup
+    path = "/home/user-data"
+    passphrase = "export PASSPHRASE=\$(sudo cat /home/user-data/backup/secret_key.txt) &&"
+    # extract to temp directory
+    restore = "sudo -E duplicity restore --force file://{0}/backup/encrypted {0}/restore &&".format(path)
+    # move restored backup using rsync, because it allows to overwrite files
+    move = "sudo rsync -av {0}/restore/* {0}/ &&".format(path)
+    rm = "sudo rm -rf {0}/restore/".format(path)
+    check_call(cmd_ssh + "\"" + passphrase + restore + move + rm + "\"", shell=True)
+    
+    # check the mail is there again
+    assert check_imap_received(subject)

test/test_mail.py

@@ -20,7 +20,8 @@ def new_message(from_email, to_email):
     return msg.as_string(), msg['subject']
     
 
-def assert_imap_received(subject):
+
+def check_imap_received(subject):
     """Connects with IMAP and asserts the existence of an email, then deletes it"""
 
     sleep(3)
@@ -30,15 +31,16 @@ def assert_imap_received(subject):
     m.login(TEST_ADDRESS, TEST_PASSWORD)
     m.select()
 
-    # Assert the message exists
+    # check the message exists
     typ, data = m.search(None, '(SUBJECT \"{}\")'.format(subject))
-    assert len(data[0].split()) == 1
+    res = len(data[0].split()) == 1
     
-    # Delete it & logout
+    if res:
         m.store(data[0].strip(), '+FLAGS', '\\Deleted')
         m.expunge()
     m.close()
     m.logout()
+    return res
 
 
 def assert_pop3_received(subject):
@@ -81,7 +83,7 @@ def test_smtps():
     s.login(TEST_ADDRESS, TEST_PASSWORD)
     s.sendmail(TEST_ADDRESS, [TEST_ADDRESS], msg)
     s.quit()
-    assert_imap_received(subject)
+    assert check_imap_received(subject)
 
 
 def test_smtps_tag():
@@ -93,7 +95,7 @@ def test_smtps_tag():
     s.login(TEST_ADDRESS, TEST_PASSWORD)
     s.sendmail(TEST_ADDRESS, [mail_address], msg)
     s.quit()
-    assert_imap_received(subject)
+    assert check_imap_received(subject)
 
 
 def test_smtps_requires_auth():
@@ -117,7 +119,7 @@ def test_smtp():
     s = smtplib.SMTP(TEST_DOMAIN, 25)
     s.sendmail(TEST_SENDER, [TEST_ADDRESS], msg)
     s.quit()
-    assert_imap_received(subject)
+    assert check_imap_received(subject)
 
 
 def test_smtp_tls():
@@ -127,7 +129,7 @@ def test_smtp_tls():
     s.starttls()
     s.sendmail(TEST_SENDER, [TEST_ADDRESS], msg)
     s.quit()
-    assert_imap_received(subject)
+    assert check_imap_received(subject)
 
 
 # FIXME
@@ -193,7 +195,7 @@ def test_smtp_headers():
 
 
 def test_pop3s():
-    """Connects with POP3S and asserts the existance of an email, then deletes it"""
+    """Connects with POP3S and asserts the existance of an email"""
     msg, subject = new_message(TEST_ADDRESS, TEST_ADDRESS)
     s = smtplib.SMTP(TEST_DOMAIN, 587)
     s.starttls()