38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
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"""Tests for mailer.py's message construction (no network — _build() only)."""
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from notifications import mailer
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def test_build_sets_message_id_and_date():
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"""RFC 5322 requires both; Gmail rejects a message outright ("Messages
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missing a valid Message-ID header are not accepted") rather than merely
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spam-scoring it when either is absent."""
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msg = mailer._build("you@example.com", "Subject", "Body text.", None)
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assert msg["Message-ID"]
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assert msg["Message-ID"].startswith("<") and msg["Message-ID"].endswith(">")
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assert msg["Date"]
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def test_build_message_id_uses_the_sending_domain():
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"""Not the sending host's own hostname (e.g. a VPS's provider-assigned
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name) -- keeps the Message-ID consistent with the From/SPF/DKIM domain."""
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msg = mailer._build("you@example.com", "Subject", "Body text.", None)
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assert "@thermograph.org>" in msg["Message-ID"]
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def test_build_sets_from_to_subject():
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msg = mailer._build("you@example.com", "Hello", "Body text.", None)
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assert msg["To"] == "you@example.com"
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assert msg["Subject"] == "Hello"
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assert "thermograph.org" in msg["From"]
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def test_build_adds_html_alternative_when_given():
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msg = mailer._build("you@example.com", "Subject", "Body text.", "<p>Body</p>")
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assert msg.get_body(preferencelist=("html",)) is not None
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assert msg.get_body(preferencelist=("plain",)) is not None
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def test_build_is_plain_text_only_without_html():
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msg = mailer._build("you@example.com", "Subject", "Body text.", None)
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assert msg.get_body(preferencelist=("html",)) is None
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