Function TestGenerateSignVerify

internal/modify/dkim/dkim_test.go:154–224

(t *testing.T)

}

func TestGenerateSignVerify(t *testing.T) {
	// This test verifies whether a freshly generated key can be used for
	// signing and verification.
	//
	// It is a kind of "integration" test for DKIM modifier, as it tests
	// whether everything works correctly together.
	//
	// Additionally it also tests whether key selection works correctly.

	test := func(domains []string, envelopeFrom string, expectDomain []string, keyAlgo string, headerCanon, bodyCanon dkim.Canonicalization, reload bool) {
		t.Helper()

		dir := t.TempDir()

		m := newTestModifier(t, dir, keyAlgo, domains)
		m.bodyCanon = bodyCanon
		m.headerCanon = headerCanon
		if reload {
			m = newTestModifier(t, dir, keyAlgo, domains)
		}

		testHdr, body := signTestMsg(t, m, envelopeFrom)
		verifyTestMsg(t, dir, expectDomain, testHdr, body)
	}

	for _, algo := range [2]string{"rsa2048", "ed25519"} {
		for _, hdrCanon := range [2]dkim.Canonicalization{dkim.CanonicalizationSimple, dkim.CanonicalizationRelaxed} {
			for _, bodyCanon := range [2]dkim.Canonicalization{dkim.CanonicalizationSimple, dkim.CanonicalizationRelaxed} {
				test([]string{"maddy.test"}, "test@maddy.test", []string{"maddy.test"}, algo, hdrCanon, bodyCanon, false)
				test([]string{"maddy.test"}, "test@maddy.test", []string{"maddy.test"}, algo, hdrCanon, bodyCanon, true)
			}
		}
	}

	// Key selection tests
	test(
		[]string{"maddy.test"}, // Generated keys.
		"test@maddy.test",      // Envelope sender.
		[]string{"maddy.test"}, // Expected signature domains.
		"ed25519", dkim.CanonicalizationRelaxed, dkim.CanonicalizationRelaxed, false)
	test(
		[]string{"maddy.test"},
		"test@unrelated.maddy.test",
		[]string{},
		"ed25519", dkim.CanonicalizationRelaxed, dkim.CanonicalizationRelaxed, false)
	test(
		[]string{"maddy.test", "related.maddy.test"},
		"test@related.maddy.test",
		[]string{"related.maddy.test"},
		"ed25519", dkim.CanonicalizationRelaxed, dkim.CanonicalizationRelaxed, false)
	test(
		[]string{"fallback.maddy.test", "maddy.test"},
		"postmaster",
		[]string{"fallback.maddy.test"},
		"ed25519", dkim.CanonicalizationRelaxed, dkim.CanonicalizationRelaxed, false)
	test(
		[]string{"fallback.maddy.test", "maddy.test"},
		"",