Добавлена отправка накладных на почту

tests/adapters/email/test_smtp_client.py

@@ -0,0 +1,166 @@
+import asyncio
+from email.message import EmailMessage
+from typing import Any
+
+import pytest
+
+from app.adapters.email import SMTPEmailSender, SMTPEmailSenderError
+
+
+class StubSend:
+    def __init__(self, raise_exc: Exception | None = None) -> None:
+        self.raise_exc = raise_exc
+        self.calls: list[dict[str, Any]] = []
+
+    async def __call__(
+        self,
+        message: EmailMessage,
+        *,
+        hostname: str,
+        port: int,
+        username: str | None,
+        password: str | None,
+        use_tls: bool,
+        start_tls: bool,
+        timeout: float,
+    ) -> object:
+        self.calls.append(
+            {
+                "message": message,
+                "hostname": hostname,
+                "port": port,
+                "username": username,
+                "password": password,
+                "use_tls": use_tls,
+                "start_tls": start_tls,
+                "timeout": timeout,
+            }
+        )
+        if self.raise_exc is not None:
+            raise self.raise_exc
+        return None
+
+
+def _make_sender(send: StubSend, **overrides: Any) -> SMTPEmailSender:
+    kwargs: dict[str, Any] = {
+        "smtp_host": "smtp.test",
+        "smtp_port": 587,
+        "username": "user",
+        "password": "pass",
+        "from_address": "no-reply@test",
+        "use_tls": True,
+        "timeout_seconds": 5.0,
+        "send": send,
+    }
+    kwargs.update(overrides)
+    return SMTPEmailSender(**kwargs)
+
+
+def test_send_email_builds_multipart_message_with_pdf_attachment() -> None:
+    send = StubSend()
+    sender = _make_sender(send)
+
+    asyncio.run(
+        sender.send_email(
+            to="client@example.com",
+            subject="Накладная по заказу o-1",
+            body="hello",
+            attachment_bytes=b"%PDF",
+            attachment_filename="waybill_o-1.pdf",
+        )
+    )
+
+    assert len(send.calls) == 1
+    call = send.calls[0]
+    assert call["hostname"] == "smtp.test"
+    assert call["port"] == 587
+    assert call["username"] == "user"
+    assert call["password"] == "pass"
+    assert call["use_tls"] is False
+    assert call["start_tls"] is True
+    assert call["timeout"] == 5.0
+
+    message: EmailMessage = call["message"]
+    assert message["From"] == "no-reply@test"
+    assert message["To"] == "client@example.com"
+    assert message["Subject"] == "Накладная по заказу o-1"
+
+    parts = list(message.iter_attachments())
+    assert len(parts) == 1
+    attachment = parts[0]
+    assert attachment.get_content_type() == "application/pdf"
+    assert attachment.get_filename() == "waybill_o-1.pdf"
+    assert attachment.get_payload(decode=True) == b"%PDF"
+
+
+def test_send_email_uses_tls_for_port_465() -> None:
+    send = StubSend()
+    sender = _make_sender(send, smtp_port=465)
+
+    asyncio.run(
+        sender.send_email(
+            to="x@example.com",
+            subject="s",
+            body="b",
+            attachment_bytes=b"",
+            attachment_filename="f.pdf",
+        )
+    )
+
+    call = send.calls[0]
+    assert call["use_tls"] is True
+    assert call["start_tls"] is False
+
+
+def test_send_email_disables_tls_when_use_tls_false() -> None:
+    send = StubSend()
+    sender = _make_sender(send, use_tls=False)
+
+    asyncio.run(
+        sender.send_email(
+            to="x@example.com",
+            subject="s",
+            body="b",
+            attachment_bytes=b"",
+            attachment_filename="f.pdf",
+        )
+    )
+
+    call = send.calls[0]
+    assert call["use_tls"] is False
+    assert call["start_tls"] is False
+
+
+def test_send_email_wraps_send_errors_in_sender_error() -> None:
+    send = StubSend(raise_exc=RuntimeError("connection refused"))
+    sender = _make_sender(send)
+
+    with pytest.raises(SMTPEmailSenderError, match="connection refused"):
+        asyncio.run(
+            sender.send_email(
+                to="x@example.com",
+                subject="s",
+                body="b",
+                attachment_bytes=b"",
+                attachment_filename="f.pdf",
+            )
+        )
+
+
+def test_send_email_passes_none_when_credentials_blank() -> None:
+    send = StubSend()
+    sender = _make_sender(send, username="", password="")
+
+    asyncio.run(
+        sender.send_email(
+            to="x@example.com",
+            subject="s",
+            body="b",
+            attachment_bytes=b"",
+            attachment_filename="f.pdf",
+        )
+    )
+
+    call = send.calls[0]
+    assert call["username"] is None
+    assert call["password"] is None