| 1 | n/a | """Test the parser and generator are inverses. |
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| 2 | n/a | |
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| 3 | n/a | Note that this is only strictly true if we are parsing RFC valid messages and |
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| 4 | n/a | producing RFC valid messages. |
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| 5 | n/a | """ |
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| 6 | n/a | |
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| 7 | n/a | import io |
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| 8 | n/a | import unittest |
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| 9 | n/a | from email import policy, message_from_bytes |
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| 10 | n/a | from email.message import EmailMessage |
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| 11 | n/a | from email.generator import BytesGenerator |
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| 12 | n/a | from test.test_email import TestEmailBase, parameterize |
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| 13 | n/a | |
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| 14 | n/a | # This is like textwrap.dedent for bytes, except that it uses \r\n for the line |
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| 15 | n/a | # separators on the rebuilt string. |
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| 16 | n/a | def dedent(bstr): |
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| 17 | n/a | lines = bstr.splitlines() |
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| 18 | n/a | if not lines[0].strip(): |
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| 19 | n/a | raise ValueError("First line must contain text") |
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| 20 | n/a | stripamt = len(lines[0]) - len(lines[0].lstrip()) |
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| 21 | n/a | return b'\r\n'.join( |
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| 22 | n/a | [x[stripamt:] if len(x)>=stripamt else b'' |
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| 23 | n/a | for x in lines]) |
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| 24 | n/a | |
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| 25 | n/a | |
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| 26 | n/a | @parameterize |
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| 27 | n/a | class TestInversion(TestEmailBase): |
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| 28 | n/a | |
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| 29 | n/a | policy = policy.default |
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| 30 | n/a | message = EmailMessage |
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| 31 | n/a | |
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| 32 | n/a | def msg_as_input(self, msg): |
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| 33 | n/a | m = message_from_bytes(msg, policy=policy.SMTP) |
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| 34 | n/a | b = io.BytesIO() |
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| 35 | n/a | g = BytesGenerator(b) |
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| 36 | n/a | g.flatten(m) |
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| 37 | n/a | self.assertEqual(b.getvalue(), msg) |
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| 38 | n/a | |
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| 39 | n/a | # XXX: spaces are not preserved correctly here yet in the general case. |
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| 40 | n/a | msg_params = { |
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| 41 | n/a | 'header_with_one_space_body': (dedent(b"""\ |
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| 42 | n/a | From: abc@xyz.com |
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| 43 | n/a | X-Status:\x20 |
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| 44 | n/a | Subject: test |
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| 45 | n/a | |
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| 46 | n/a | foo |
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| 47 | n/a | """),), |
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| 48 | n/a | |
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| 49 | n/a | } |
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| 50 | n/a | |
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| 51 | n/a | payload_params = { |
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| 52 | n/a | 'plain_text': dict(payload='This is a test\n'*20), |
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| 53 | n/a | 'base64_text': dict(payload=(('xy a'*40+'\n')*5), cte='base64'), |
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| 54 | n/a | 'qp_text': dict(payload=(('xy a'*40+'\n')*5), cte='quoted-printable'), |
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| 55 | n/a | } |
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| 56 | n/a | |
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| 57 | n/a | def payload_as_body(self, payload, **kw): |
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| 58 | n/a | msg = self._make_message() |
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| 59 | n/a | msg['From'] = 'foo' |
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| 60 | n/a | msg['To'] = 'bar' |
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| 61 | n/a | msg['Subject'] = 'payload round trip test' |
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| 62 | n/a | msg.set_content(payload, **kw) |
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| 63 | n/a | b = bytes(msg) |
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| 64 | n/a | msg2 = message_from_bytes(b, policy=self.policy) |
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| 65 | n/a | self.assertEqual(bytes(msg2), b) |
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| 66 | n/a | self.assertEqual(msg2.get_content(), payload) |
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| 67 | n/a | |
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| 68 | n/a | |
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| 69 | n/a | if __name__ == '__main__': |
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| 70 | n/a | unittest.main() |
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