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wuttjamaican/tests/test_email.py
Lance Edgar a6bb538ce9 fix: format all code with black
and from now on should not deviate from that...
2025-08-30 21:25:44 -05:00

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Python

# -*- coding: utf-8; -*-
from email.mime.text import MIMEText
from unittest import TestCase
from unittest.mock import patch, MagicMock
import pytest
from wuttjamaican import email as mod
from wuttjamaican.util import resource_path
from wuttjamaican.exc import ConfigurationError
from wuttjamaican.testing import ConfigTestCase, FileTestCase
class TestEmailSetting(ConfigTestCase):
def test_constructor(self):
setting = mod.EmailSetting(self.config)
self.assertIs(setting.config, self.config)
self.assertIs(setting.app, self.app)
self.assertEqual(setting.key, "EmailSetting")
def test_sample_data(self):
setting = mod.EmailSetting(self.config)
self.assertEqual(setting.sample_data(), {})
class TestMessage(FileTestCase):
def make_message(self, **kwargs):
return mod.Message(**kwargs)
def test_get_recips(self):
msg = self.make_message()
# set as list
recips = msg.get_recips(["sally@example.com"])
self.assertEqual(recips, ["sally@example.com"])
# set as tuple
recips = msg.get_recips(("barney@example.com",))
self.assertEqual(recips, ["barney@example.com"])
# set as string
recips = msg.get_recips("wilma@example.com")
self.assertEqual(recips, ["wilma@example.com"])
# set as null
recips = msg.get_recips(None)
self.assertEqual(recips, [])
# otherwise error
self.assertRaises(ValueError, msg.get_recips, {"foo": "foo@example.com"})
def test_as_string(self):
# error if no body
msg = self.make_message()
self.assertRaises(ValueError, msg.as_string)
# txt body
msg = self.make_message(sender="bob@example.com", txt_body="hello world")
complete = msg.as_string()
self.assertIn("From: bob@example.com", complete)
# html body
msg = self.make_message(
sender="bob@example.com", html_body="<p>hello world</p>"
)
complete = msg.as_string()
self.assertIn("From: bob@example.com", complete)
# txt + html body
msg = self.make_message(
sender="bob@example.com",
txt_body="hello world",
html_body="<p>hello world</p>",
)
complete = msg.as_string()
self.assertIn("From: bob@example.com", complete)
# html + attachment
csv_part = MIMEText("foo,bar\n1,2", "csv", "utf_8")
msg = self.make_message(
sender="bob@example.com",
html_body="<p>hello world</p>",
attachments=[csv_part],
)
complete = msg.as_string()
self.assertIn("Content-Type: multipart/mixed; boundary=", complete)
self.assertIn('Content-Type: text/csv; charset="utf_8"', complete)
# error if improper attachment
csv_path = self.write_file("data.csv", "foo,bar\n1,2")
msg = self.make_message(
sender="bob@example.com",
html_body="<p>hello world</p>",
attachments=[csv_path],
)
self.assertRaises(ValueError, msg.as_string)
try:
msg.as_string()
except ValueError as err:
self.assertIn("must specify valid MIME attachments", str(err))
# everything
msg = self.make_message(
sender="bob@example.com",
subject="meeting follow-up",
to="sally@example.com",
cc="marketing@example.com",
bcc="bob@example.com",
replyto="sales@example.com",
txt_body="hello world",
html_body="<p>hello world</p>",
)
complete = msg.as_string()
self.assertIn("From: bob@example.com", complete)
self.assertIn("Subject: meeting follow-up", complete)
self.assertIn("To: sally@example.com", complete)
self.assertIn("Cc: marketing@example.com", complete)
self.assertIn("Bcc: bob@example.com", complete)
self.assertIn("Reply-To: sales@example.com", complete)
class mock_foo(mod.EmailSetting):
default_subject = "MOCK FOO!"
def sample_data(self):
return {"foo": "mock"}
class TestEmailHandler(ConfigTestCase):
def make_handler(self, **kwargs):
return mod.EmailHandler(self.config, **kwargs)
def test_constructor_lookups(self):
# empty lookup paths by default, if no providers
with patch.object(self.app, "providers", new={}):
handler = self.make_handler()
self.assertEqual(handler.txt_templates.directories, [])
self.assertEqual(handler.html_templates.directories, [])
# provider may specify paths as list
providers = {
"wuttatest": MagicMock(email_templates=["wuttjamaican:email-templates"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
path = resource_path("wuttjamaican:email-templates")
self.assertEqual(handler.txt_templates.directories, [path])
self.assertEqual(handler.html_templates.directories, [path])
# provider may specify paths as string
providers = {
"wuttatest": MagicMock(email_templates="wuttjamaican:email-templates"),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
path = resource_path("wuttjamaican:email-templates")
self.assertEqual(handler.txt_templates.directories, [path])
self.assertEqual(handler.html_templates.directories, [path])
def test_get_email_modules(self):
# no providers, no email modules
with patch.object(self.app, "providers", new={}):
handler = self.make_handler()
self.assertEqual(handler.get_email_modules(), [])
# provider may specify modules as list
providers = {
"wuttatest": MagicMock(email_modules=["wuttjamaican.email"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
modules = handler.get_email_modules()
self.assertEqual(len(modules), 1)
self.assertIs(modules[0], mod)
# provider may specify modules as string
providers = {
"wuttatest": MagicMock(email_modules="wuttjamaican.email"),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
modules = handler.get_email_modules()
self.assertEqual(len(modules), 1)
self.assertIs(modules[0], mod)
def test_get_email_settings(self):
# no providers, no email settings
with patch.object(self.app, "providers", new={}):
handler = self.make_handler()
self.assertEqual(handler.get_email_settings(), {})
# provider may define email settings (via modules)
providers = {
"wuttatest": MagicMock(email_modules=["tests.test_email"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
settings = handler.get_email_settings()
self.assertEqual(len(settings), 1)
self.assertIn("mock_foo", settings)
def test_get_email_setting(self):
providers = {
"wuttatest": MagicMock(email_modules=["tests.test_email"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
# as instance
setting = handler.get_email_setting("mock_foo")
self.assertIsInstance(setting, mod.EmailSetting)
self.assertIsInstance(setting, mock_foo)
# as class
setting = handler.get_email_setting("mock_foo", instance=False)
self.assertTrue(issubclass(setting, mod.EmailSetting))
self.assertIs(setting, mock_foo)
def test_make_message(self):
handler = self.make_handler()
msg = handler.make_message()
self.assertIsInstance(msg, mod.Message)
def test_make_auto_message(self):
handler = self.make_handler()
# # error if default sender not defined
# self.assertRaises(ConfigurationError, handler.make_auto_message, 'foo')
# message is empty by default
msg = handler.make_auto_message("foo")
self.assertIsInstance(msg, mod.Message)
self.assertEqual(msg.key, "foo")
self.assertEqual(msg.sender, "root@localhost")
self.assertEqual(msg.subject, "Automated message")
self.assertEqual(msg.to, [])
self.assertEqual(msg.cc, [])
self.assertEqual(msg.bcc, [])
self.assertIsNone(msg.replyto)
self.assertIsNone(msg.txt_body)
self.assertIsNone(msg.html_body)
# override defaults
self.config.setdefault("wutta.email.default.sender", "bob@example.com")
self.config.setdefault("wutta.email.default.subject", "Attention required")
# message is empty by default
msg = handler.make_auto_message("foo")
self.assertIsInstance(msg, mod.Message)
self.assertEqual(msg.key, "foo")
self.assertEqual(msg.sender, "bob@example.com")
self.assertEqual(msg.subject, "Attention required")
self.assertEqual(msg.to, [])
self.assertEqual(msg.cc, [])
self.assertEqual(msg.bcc, [])
self.assertIsNone(msg.replyto)
self.assertIsNone(msg.txt_body)
self.assertIsNone(msg.html_body)
# but if there is a proper email profile configured for key,
# then we should get back a more complete message
self.config.setdefault("wutta.email.test_foo.subject", "hello foo")
self.config.setdefault("wutta.email.test_foo.to", "sally@example.com")
self.config.setdefault("wutta.email.templates", "tests:email-templates")
handler = self.make_handler()
msg = handler.make_auto_message("test_foo")
self.assertEqual(msg.key, "test_foo")
self.assertEqual(msg.sender, "bob@example.com")
self.assertEqual(msg.subject, "hello foo")
self.assertEqual(msg.to, ["sally@example.com"])
self.assertEqual(msg.cc, [])
self.assertEqual(msg.bcc, [])
self.assertIsNone(msg.replyto)
self.assertEqual(msg.txt_body, "hello from foo txt template\n")
self.assertEqual(msg.html_body, "<p>hello from foo html template</p>\n")
# *some* auto methods get skipped if caller specifies the
# kwarg at all; others get skipped if kwarg is empty
# sender
with patch.object(handler, "get_auto_sender") as get_auto_sender:
msg = handler.make_auto_message("foo", sender=None)
get_auto_sender.assert_not_called()
msg = handler.make_auto_message("foo")
get_auto_sender.assert_called_once_with("foo")
# subject
with patch.object(handler, "get_auto_subject") as get_auto_subject:
msg = handler.make_auto_message("foo", subject=None)
get_auto_subject.assert_not_called()
msg = handler.make_auto_message("foo")
get_auto_subject.assert_called_once_with("foo", {}, default=None)
# to
with patch.object(handler, "get_auto_to") as get_auto_to:
msg = handler.make_auto_message("foo", to=None)
get_auto_to.assert_not_called()
get_auto_to.return_value = None
msg = handler.make_auto_message("foo")
get_auto_to.assert_called_once_with("foo")
# cc
with patch.object(handler, "get_auto_cc") as get_auto_cc:
msg = handler.make_auto_message("foo", cc=None)
get_auto_cc.assert_not_called()
get_auto_cc.return_value = None
msg = handler.make_auto_message("foo")
get_auto_cc.assert_called_once_with("foo")
# bcc
with patch.object(handler, "get_auto_bcc") as get_auto_bcc:
msg = handler.make_auto_message("foo", bcc=None)
get_auto_bcc.assert_not_called()
get_auto_bcc.return_value = None
msg = handler.make_auto_message("foo")
get_auto_bcc.assert_called_once_with("foo")
# txt_body
with patch.object(handler, "get_auto_txt_body") as get_auto_txt_body:
msg = handler.make_auto_message("foo", txt_body=None)
get_auto_txt_body.assert_not_called()
msg = handler.make_auto_message("foo")
get_auto_txt_body.assert_called_once_with("foo", {})
# html_body
with patch.object(handler, "get_auto_html_body") as get_auto_html_body:
msg = handler.make_auto_message("foo", html_body=None)
get_auto_html_body.assert_not_called()
msg = handler.make_auto_message("foo")
get_auto_html_body.assert_called_once_with("foo", {})
def test_get_auto_sender(self):
handler = self.make_handler()
# basic global default
self.assertEqual(handler.get_auto_sender("foo"), "root@localhost")
# can set global default
self.config.setdefault("wutta.email.default.sender", "bob@example.com")
self.assertEqual(handler.get_auto_sender("foo"), "bob@example.com")
# can set for key
self.config.setdefault("wutta.email.foo.sender", "sally@example.com")
self.assertEqual(handler.get_auto_sender("foo"), "sally@example.com")
def test_get_auto_replyto(self):
handler = self.make_handler()
# null by default
self.assertIsNone(handler.get_auto_replyto("foo"))
# can set global default
self.config.setdefault("wutta.email.default.replyto", "george@example.com")
self.assertEqual(handler.get_auto_replyto("foo"), "george@example.com")
# can set for key
self.config.setdefault("wutta.email.foo.replyto", "kathy@example.com")
self.assertEqual(handler.get_auto_replyto("foo"), "kathy@example.com")
def test_get_auto_subject_template(self):
handler = self.make_handler()
# global default
template = handler.get_auto_subject_template("foo")
self.assertEqual(template, "Automated message")
# can configure alternate global default
self.config.setdefault("wutta.email.default.subject", "Wutta Message")
template = handler.get_auto_subject_template("foo")
self.assertEqual(template, "Wutta Message")
# can configure just for key
self.config.setdefault("wutta.email.foo.subject", "Foo Message")
template = handler.get_auto_subject_template("foo")
self.assertEqual(template, "Foo Message")
# EmailSetting can provide default subject
providers = {
"wuttatest": MagicMock(email_modules=["tests.test_email"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
template = handler.get_auto_subject_template("mock_foo")
self.assertEqual(template, "MOCK FOO!")
# caller can provide default subject
template = handler.get_auto_subject_template(
"mock_foo", default="whatever is clever"
)
self.assertEqual(template, "whatever is clever")
def test_get_auto_subject(self):
handler = self.make_handler()
# global default
subject = handler.get_auto_subject("foo")
self.assertEqual(subject, "Automated message")
# can configure alternate global default
self.config.setdefault("wutta.email.default.subject", "Wutta Message")
subject = handler.get_auto_subject("foo")
self.assertEqual(subject, "Wutta Message")
# caller can provide default subject
subject = handler.get_auto_subject("foo", default="whatever is clever")
self.assertEqual(subject, "whatever is clever")
# can configure just for key
self.config.setdefault("wutta.email.foo.subject", "Foo Message")
subject = handler.get_auto_subject("foo")
self.assertEqual(subject, "Foo Message")
# proper template is rendered
self.config.setdefault("wutta.email.bar.subject", "${foo} Message")
subject = handler.get_auto_subject("bar", {"foo": "FOO"})
self.assertEqual(subject, "FOO Message")
# unless we ask it not to
subject = handler.get_auto_subject("bar", {"foo": "FOO"}, rendered=False)
self.assertEqual(subject, "${foo} Message")
def test_get_auto_recips(self):
handler = self.make_handler()
# error if bad type requested
self.assertRaises(ValueError, handler.get_auto_recips, "foo", "doesnotexist")
# can configure global default
self.config.setdefault("wutta.email.default.to", "admin@example.com")
recips = handler.get_auto_recips("foo", "to")
self.assertEqual(recips, ["admin@example.com"])
# can configure just for key
self.config.setdefault("wutta.email.foo.to", "bob@example.com")
recips = handler.get_auto_recips("foo", "to")
self.assertEqual(recips, ["bob@example.com"])
def test_get_auto_body_template(self):
from mako.template import Template
handler = self.make_handler()
# error if bad request
self.assertRaises(ValueError, handler.get_auto_body_template, "foo", "BADTYPE")
# empty by default
template = handler.get_auto_body_template("foo", "txt")
self.assertIsNone(template)
# but returns a template if it exists
providers = {
"wuttatest": MagicMock(email_templates=["tests:email-templates"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
template = handler.get_auto_body_template("test_foo", "txt")
self.assertIsInstance(template, Template)
self.assertEqual(template.uri, "test_foo.txt.mako")
def test_get_auto_txt_body(self):
handler = self.make_handler()
# empty by default
body = handler.get_auto_txt_body("some-random-email")
self.assertIsNone(body)
# but returns body if template exists
providers = {
"wuttatest": MagicMock(email_templates=["tests:email-templates"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
body = handler.get_auto_txt_body("test_foo")
self.assertEqual(body, "hello from foo txt template\n")
def test_get_auto_html_body(self):
handler = self.make_handler()
# empty by default
body = handler.get_auto_html_body("some-random-email")
self.assertIsNone(body)
# but returns body if template exists
providers = {
"wuttatest": MagicMock(email_templates=["tests:email-templates"]),
}
with patch.object(self.app, "providers", new=providers):
handler = self.make_handler()
body = handler.get_auto_html_body("test_foo")
self.assertEqual(body, "<p>hello from foo html template</p>\n")
def test_get_notes(self):
handler = self.make_handler()
# null by default
self.assertIsNone(handler.get_notes("foo"))
# configured notes
self.config.setdefault("wutta.email.foo.notes", "hello world")
self.assertEqual(handler.get_notes("foo"), "hello world")
def test_is_enabled(self):
handler = self.make_handler()
# enabled by default
self.assertTrue(handler.is_enabled("default"))
self.assertTrue(handler.is_enabled("foo"))
# specific type disabled
self.config.setdefault("wutta.email.foo.enabled", "false")
self.assertFalse(handler.is_enabled("foo"))
# default is disabled
self.assertTrue(handler.is_enabled("bar"))
self.config.setdefault("wutta.email.default.enabled", "false")
self.assertFalse(handler.is_enabled("bar"))
def test_deliver_message(self):
handler = self.make_handler()
msg = handler.make_message(sender="bob@example.com", to="sally@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
# no smtp session since sending email is disabled by default
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_not_called()
session.login.assert_not_called()
session.sendmail.assert_not_called()
# now let's enable sending
self.config.setdefault("wutta.mail.send_emails", "true")
# smtp login not attempted by default
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_called_once_with("localhost")
session.login.assert_not_called()
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# but login attempted if config has credentials
self.config.setdefault("wutta.mail.smtp.username", "bob")
self.config.setdefault("wutta.mail.smtp.password", "seekrit")
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_called_once_with("localhost")
session.login.assert_called_once_with("bob", "seekrit")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# error if no sender
msg = handler.make_message(to="sally@example.com")
self.assertRaises(ValueError, handler.deliver_message, msg)
# error if no recips
msg = handler.make_message(sender="bob@example.com")
self.assertRaises(ValueError, handler.deliver_message, msg)
# can set recips as list
msg = handler.make_message(sender="bob@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg, recips=["sally@example.com"])
smtplib.SMTP.assert_called_once_with("localhost")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# can set recips as string
msg = handler.make_message(sender="bob@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg, recips="sally@example.com")
smtplib.SMTP.assert_called_once_with("localhost")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# can set recips via to
msg = handler.make_message(sender="bob@example.com", to="sally@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_called_once_with("localhost")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# can set recips via cc
msg = handler.make_message(sender="bob@example.com", cc="sally@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_called_once_with("localhost")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
# can set recips via bcc
msg = handler.make_message(sender="bob@example.com", bcc="sally@example.com")
with patch.object(msg, "as_string", return_value="msg-str"):
with patch.object(mod, "smtplib") as smtplib:
session = MagicMock()
smtplib.SMTP.return_value = session
handler.deliver_message(msg)
smtplib.SMTP.assert_called_once_with("localhost")
session.sendmail.assert_called_once_with(
"bob@example.com", {"sally@example.com"}, "msg-str"
)
def test_sending_is_enabled(self):
handler = self.make_handler()
# off by default
self.assertFalse(handler.sending_is_enabled())
# but can be turned on
self.config.setdefault("wutta.mail.send_emails", "true")
self.assertTrue(handler.sending_is_enabled())
def test_send_email(self):
handler = self.make_handler()
with patch.object(handler, "deliver_message") as deliver_message:
# specify message w/ no body
msg = handler.make_message()
self.assertRaises(ValueError, handler.send_email, message=msg)
self.assertFalse(deliver_message.called)
# again, but also specify key
msg = handler.make_message()
self.assertRaises(ValueError, handler.send_email, "foo", message=msg)
self.assertFalse(deliver_message.called)
# specify complete message
deliver_message.reset_mock()
msg = handler.make_message(txt_body="hello world")
handler.send_email(message=msg)
deliver_message.assert_called_once_with(msg, recips=None)
# again, but also specify key
deliver_message.reset_mock()
msg = handler.make_message(txt_body="hello world")
handler.send_email("foo", message=msg)
deliver_message.assert_called_once_with(msg, recips=None)
# no key, no message
deliver_message.reset_mock()
self.assertRaises(ValueError, handler.send_email)
# auto-create message w/ no template
deliver_message.reset_mock()
self.assertRaises(
RuntimeError, handler.send_email, "foo", sender="foo@example.com"
)
self.assertFalse(deliver_message.called)
# auto create w/ body
deliver_message.reset_mock()
handler.send_email("foo", sender="foo@example.com", txt_body="hello world")
self.assertTrue(deliver_message.called)
# type is disabled
deliver_message.reset_mock()
self.config.setdefault("wutta.email.foo.enabled", False)
handler.send_email("foo", sender="foo@example.com", txt_body="hello world")
self.assertFalse(deliver_message.called)
# default is disabled
deliver_message.reset_mock()
handler.send_email("bar", sender="bar@example.com", txt_body="hello world")
self.assertTrue(deliver_message.called)
deliver_message.reset_mock()
self.config.setdefault("wutta.email.default.enabled", False)
handler.send_email("bar", sender="bar@example.com", txt_body="hello world")
self.assertFalse(deliver_message.called)