feat(projekt-matching): Cfg dataclass, IMAP mailbox with keyword/trash handling, SMTP send

projekt-matching/tests/test_mailer.py

@@ -0,0 +1,53 @@
+import email
+from unittest import mock
+
+from projektmatch import mailer
+
+
+def fake_conn():
+    conn = mock.Mock()
+    conn.uid.return_value = ("OK", [b"3 7"])
+    conn.list.return_value = ("OK", [
+        b'(\\HasNoChildren) "." "INBOX"',
+        b'(\\HasNoChildren \\Trash) "." "Trash"'])
+    return conn
+
+
+def test_unchecked_uids_search():
+    box = mailer.MailBox("u", "p", conn=fake_conn())
+    assert box.unchecked_uids() == ["3", "7"]
+    box.conn.uid.assert_called_with("SEARCH", None,
+                                    "UNKEYWORD $ProjektChecked")
+
+
+def test_flag_checked():
+    box = mailer.MailBox("u", "p", conn=fake_conn())
+    box.flag_checked("3")
+    box.conn.uid.assert_called_with("STORE", "3", "+FLAGS",
+                                    "($ProjektChecked)")
+
+
+def test_trash_folder_by_special_use():
+    box = mailer.MailBox("u", "p", conn=fake_conn())
+    assert box.trash_folder() == "Trash"
+
+
+def test_move_uses_move_then_fallback():
+    conn = fake_conn()
+    box = mailer.MailBox("u", "p", conn=conn)
+    conn.uid.return_value = ("OK", [b""])
+    box.move_to_trash("3")
+    assert conn.uid.call_args_list[-1].args[:2] == ("MOVE", "3")
+    conn.uid.side_effect = [("NO", [b""]), ("OK", [b""]), ("OK", [b""])]
+    box.move_to_trash("4")
+    assert conn.expunge.called
+
+
+def test_send_mail_starttls():
+    with mock.patch("projektmatch.mailer.smtplib.SMTP") as smtp:
+        server = smtp.return_value.__enter__.return_value
+        mailer.send_mail("u@x", "pw", "to@x", "Subj", "Body")
+    server.starttls.assert_called_once()
+    server.login.assert_called_once_with("u@x", "pw")
+    msg = server.send_message.call_args.args[0]
+    assert msg["Subject"] == "Subj" and msg["To"] == "to@x"