Files
nanobot/tests/test_email_channel.py
Xubin Ren dbdb43faff feat: channel plugin architecture with decoupled configs
- Add plugin discovery via Python entry_points (group: nanobot.channels)
- Move 11 channel Config classes from schema.py into their own channel modules
- ChannelsConfig now only keeps send_progress + send_tool_hints (extra=allow)
- Each built-in channel parses dict->Pydantic in __init__, zero internal changes
- All channels implement default_config() for onboard auto-population
- nanobot onboard injects defaults for all discovered channels (built-in + plugins)
- Add nanobot plugins list CLI command
- Add Channel Plugin Guide (docs/CHANNEL_PLUGIN_GUIDE.md)
- Fully backward compatible: existing config.json and sessions work as-is
- 340 tests pass, zero regressions
2026-03-14 16:13:38 +08:00

369 lines
11 KiB
Python

from email.message import EmailMessage
from datetime import date
import pytest
from nanobot.bus.events import OutboundMessage
from nanobot.bus.queue import MessageBus
from nanobot.channels.email import EmailChannel
from nanobot.config.schema import EmailConfig
def _make_config() -> EmailConfig:
return EmailConfig(
enabled=True,
consent_granted=True,
imap_host="imap.example.com",
imap_port=993,
imap_username="bot@example.com",
imap_password="secret",
smtp_host="smtp.example.com",
smtp_port=587,
smtp_username="bot@example.com",
smtp_password="secret",
mark_seen=True,
)
def _make_raw_email(
from_addr: str = "alice@example.com",
subject: str = "Hello",
body: str = "This is the body.",
) -> bytes:
msg = EmailMessage()
msg["From"] = from_addr
msg["To"] = "bot@example.com"
msg["Subject"] = subject
msg["Message-ID"] = "<m1@example.com>"
msg.set_content(body)
return msg.as_bytes()
def test_fetch_new_messages_parses_unseen_and_marks_seen(monkeypatch) -> None:
raw = _make_raw_email(subject="Invoice", body="Please pay")
class FakeIMAP:
def __init__(self) -> None:
self.store_calls: list[tuple[bytes, str, str]] = []
def login(self, _user: str, _pw: str):
return "OK", [b"logged in"]
def select(self, _mailbox: str):
return "OK", [b"1"]
def search(self, *_args):
return "OK", [b"1"]
def fetch(self, _imap_id: bytes, _parts: str):
return "OK", [(b"1 (UID 123 BODY[] {200})", raw), b")"]
def store(self, imap_id: bytes, op: str, flags: str):
self.store_calls.append((imap_id, op, flags))
return "OK", [b""]
def logout(self):
return "BYE", [b""]
fake = FakeIMAP()
monkeypatch.setattr("nanobot.channels.email.imaplib.IMAP4_SSL", lambda _h, _p: fake)
channel = EmailChannel(_make_config(), MessageBus())
items = channel._fetch_new_messages()
assert len(items) == 1
assert items[0]["sender"] == "alice@example.com"
assert items[0]["subject"] == "Invoice"
assert "Please pay" in items[0]["content"]
assert fake.store_calls == [(b"1", "+FLAGS", "\\Seen")]
# Same UID should be deduped in-process.
items_again = channel._fetch_new_messages()
assert items_again == []
def test_extract_text_body_falls_back_to_html() -> None:
msg = EmailMessage()
msg["From"] = "alice@example.com"
msg["To"] = "bot@example.com"
msg["Subject"] = "HTML only"
msg.add_alternative("<p>Hello<br>world</p>", subtype="html")
text = EmailChannel._extract_text_body(msg)
assert "Hello" in text
assert "world" in text
@pytest.mark.asyncio
async def test_start_returns_immediately_without_consent(monkeypatch) -> None:
cfg = _make_config()
cfg.consent_granted = False
channel = EmailChannel(cfg, MessageBus())
called = {"fetch": False}
def _fake_fetch():
called["fetch"] = True
return []
monkeypatch.setattr(channel, "_fetch_new_messages", _fake_fetch)
await channel.start()
assert channel.is_running is False
assert called["fetch"] is False
@pytest.mark.asyncio
async def test_send_uses_smtp_and_reply_subject(monkeypatch) -> None:
class FakeSMTP:
def __init__(self, _host: str, _port: int, timeout: int = 30) -> None:
self.timeout = timeout
self.started_tls = False
self.logged_in = False
self.sent_messages: list[EmailMessage] = []
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def starttls(self, context=None):
self.started_tls = True
def login(self, _user: str, _pw: str):
self.logged_in = True
def send_message(self, msg: EmailMessage):
self.sent_messages.append(msg)
fake_instances: list[FakeSMTP] = []
def _smtp_factory(host: str, port: int, timeout: int = 30):
instance = FakeSMTP(host, port, timeout=timeout)
fake_instances.append(instance)
return instance
monkeypatch.setattr("nanobot.channels.email.smtplib.SMTP", _smtp_factory)
channel = EmailChannel(_make_config(), MessageBus())
channel._last_subject_by_chat["alice@example.com"] = "Invoice #42"
channel._last_message_id_by_chat["alice@example.com"] = "<m1@example.com>"
await channel.send(
OutboundMessage(
channel="email",
chat_id="alice@example.com",
content="Acknowledged.",
)
)
assert len(fake_instances) == 1
smtp = fake_instances[0]
assert smtp.started_tls is True
assert smtp.logged_in is True
assert len(smtp.sent_messages) == 1
sent = smtp.sent_messages[0]
assert sent["Subject"] == "Re: Invoice #42"
assert sent["To"] == "alice@example.com"
assert sent["In-Reply-To"] == "<m1@example.com>"
@pytest.mark.asyncio
async def test_send_skips_reply_when_auto_reply_disabled(monkeypatch) -> None:
"""When auto_reply_enabled=False, replies should be skipped but proactive sends allowed."""
class FakeSMTP:
def __init__(self, _host: str, _port: int, timeout: int = 30) -> None:
self.sent_messages: list[EmailMessage] = []
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def starttls(self, context=None):
return None
def login(self, _user: str, _pw: str):
return None
def send_message(self, msg: EmailMessage):
self.sent_messages.append(msg)
fake_instances: list[FakeSMTP] = []
def _smtp_factory(host: str, port: int, timeout: int = 30):
instance = FakeSMTP(host, port, timeout=timeout)
fake_instances.append(instance)
return instance
monkeypatch.setattr("nanobot.channels.email.smtplib.SMTP", _smtp_factory)
cfg = _make_config()
cfg.auto_reply_enabled = False
channel = EmailChannel(cfg, MessageBus())
# Mark alice as someone who sent us an email (making this a "reply")
channel._last_subject_by_chat["alice@example.com"] = "Previous email"
# Reply should be skipped (auto_reply_enabled=False)
await channel.send(
OutboundMessage(
channel="email",
chat_id="alice@example.com",
content="Should not send.",
)
)
assert fake_instances == []
# Reply with force_send=True should be sent
await channel.send(
OutboundMessage(
channel="email",
chat_id="alice@example.com",
content="Force send.",
metadata={"force_send": True},
)
)
assert len(fake_instances) == 1
assert len(fake_instances[0].sent_messages) == 1
@pytest.mark.asyncio
async def test_send_proactive_email_when_auto_reply_disabled(monkeypatch) -> None:
"""Proactive emails (not replies) should be sent even when auto_reply_enabled=False."""
class FakeSMTP:
def __init__(self, _host: str, _port: int, timeout: int = 30) -> None:
self.sent_messages: list[EmailMessage] = []
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def starttls(self, context=None):
return None
def login(self, _user: str, _pw: str):
return None
def send_message(self, msg: EmailMessage):
self.sent_messages.append(msg)
fake_instances: list[FakeSMTP] = []
def _smtp_factory(host: str, port: int, timeout: int = 30):
instance = FakeSMTP(host, port, timeout=timeout)
fake_instances.append(instance)
return instance
monkeypatch.setattr("nanobot.channels.email.smtplib.SMTP", _smtp_factory)
cfg = _make_config()
cfg.auto_reply_enabled = False
channel = EmailChannel(cfg, MessageBus())
# bob@example.com has never sent us an email (proactive send)
# This should be sent even with auto_reply_enabled=False
await channel.send(
OutboundMessage(
channel="email",
chat_id="bob@example.com",
content="Hello, this is a proactive email.",
)
)
assert len(fake_instances) == 1
assert len(fake_instances[0].sent_messages) == 1
sent = fake_instances[0].sent_messages[0]
assert sent["To"] == "bob@example.com"
@pytest.mark.asyncio
async def test_send_skips_when_consent_not_granted(monkeypatch) -> None:
class FakeSMTP:
def __init__(self, _host: str, _port: int, timeout: int = 30) -> None:
self.sent_messages: list[EmailMessage] = []
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def starttls(self, context=None):
return None
def login(self, _user: str, _pw: str):
return None
def send_message(self, msg: EmailMessage):
self.sent_messages.append(msg)
called = {"smtp": False}
def _smtp_factory(host: str, port: int, timeout: int = 30):
called["smtp"] = True
return FakeSMTP(host, port, timeout=timeout)
monkeypatch.setattr("nanobot.channels.email.smtplib.SMTP", _smtp_factory)
cfg = _make_config()
cfg.consent_granted = False
channel = EmailChannel(cfg, MessageBus())
await channel.send(
OutboundMessage(
channel="email",
chat_id="alice@example.com",
content="Should not send.",
metadata={"force_send": True},
)
)
assert called["smtp"] is False
def test_fetch_messages_between_dates_uses_imap_since_before_without_mark_seen(monkeypatch) -> None:
raw = _make_raw_email(subject="Status", body="Yesterday update")
class FakeIMAP:
def __init__(self) -> None:
self.search_args = None
self.store_calls: list[tuple[bytes, str, str]] = []
def login(self, _user: str, _pw: str):
return "OK", [b"logged in"]
def select(self, _mailbox: str):
return "OK", [b"1"]
def search(self, *_args):
self.search_args = _args
return "OK", [b"5"]
def fetch(self, _imap_id: bytes, _parts: str):
return "OK", [(b"5 (UID 999 BODY[] {200})", raw), b")"]
def store(self, imap_id: bytes, op: str, flags: str):
self.store_calls.append((imap_id, op, flags))
return "OK", [b""]
def logout(self):
return "BYE", [b""]
fake = FakeIMAP()
monkeypatch.setattr("nanobot.channels.email.imaplib.IMAP4_SSL", lambda _h, _p: fake)
channel = EmailChannel(_make_config(), MessageBus())
items = channel.fetch_messages_between_dates(
start_date=date(2026, 2, 6),
end_date=date(2026, 2, 7),
limit=10,
)
assert len(items) == 1
assert items[0]["subject"] == "Status"
# search(None, "SINCE", "06-Feb-2026", "BEFORE", "07-Feb-2026")
assert fake.search_args is not None
assert fake.search_args[1:] == ("SINCE", "06-Feb-2026", "BEFORE", "07-Feb-2026")
assert fake.store_calls == []