view tests/test-wireproto-framing.py @ 48598:a6f16ec07ed7

stream-clone: add a explicit test for format change during stream clone

They are different kind of requirements, the one which impact the data storage
and are relevant to the files being streamed and the one which does not. For
example some requirements are only relevant to the working copy, like sparse, or
dirstate-v2.

Since they are irrelevant to the content being streamed, they do not prevent the
receiving side to use streaming clone and mercurial skip adverting them over
the wire and, ideally, within the bundle.

In addition, this let the client decide to use whichever format it desire for
the part that does not affect the store itself. So the configuration related to
these format are used as normal when doing a streaming clone.

In practice, the feature was not really tested and is badly broken with bundle-2,
since the requirements are not filtered out from the stream bundle.

So we start with adding simple tests as a good base before the fix and adjust
the feature.

Differential Revision: https://phab.mercurial-scm.org/D12029

from __future__ import absolute_import, print_function

import unittest

from mercurial import (
    util,
    wireprotoframing as framing,
)

ffs = framing.makeframefromhumanstring


class FrameHumanStringTests(unittest.TestCase):
    def testbasic(self):
        self.assertEqual(
            ffs(b'1 1 0 1 0 '), b'\x00\x00\x00\x01\x00\x01\x00\x10'
        )

        self.assertEqual(
            ffs(b'2 4 0 1 0 '), b'\x00\x00\x00\x02\x00\x04\x00\x10'
        )

        self.assertEqual(
            ffs(b'2 4 0 1 0 foo'), b'\x03\x00\x00\x02\x00\x04\x00\x10foo'
        )

    def testcborint(self):
        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:15'), b'\x01\x00\x00\x01\x00\x01\x00\x10\x0f'
        )

        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:42'), b'\x02\x00\x00\x01\x00\x01\x00\x10\x18*'
        )

        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:1048576'),
            b'\x05\x00\x00\x01\x00\x01\x00\x10\x1a' b'\x00\x10\x00\x00',
        )

        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:0'), b'\x01\x00\x00\x01\x00\x01\x00\x10\x00'
        )

        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:-1'), b'\x01\x00\x00\x01\x00\x01\x00\x10 '
        )

        self.assertEqual(
            ffs(b'1 1 0 1 0 cbor:-342542'),
            b'\x05\x00\x00\x01\x00\x01\x00\x10:\x00\x05:\r',
        )

    def testcborstrings(self):
        self.assertEqual(
            ffs(b"1 1 0 1 0 cbor:b'foo'"),
            b'\x04\x00\x00\x01\x00\x01\x00\x10Cfoo',
        )

    def testcborlists(self):
        self.assertEqual(
            ffs(b"1 1 0 1 0 cbor:[None, True, False, 42, b'foo']"),
            b'\n\x00\x00\x01\x00\x01\x00\x10\x85\xf6\xf5\xf4' b'\x18*Cfoo',
        )

    def testcbordicts(self):
        self.assertEqual(
            ffs(b"1 1 0 1 0 " b"cbor:{b'foo': b'val1', b'bar': b'val2'}"),
            b'\x13\x00\x00\x01\x00\x01\x00\x10\xa2' b'CbarDval2CfooDval1',
        )


class FrameTests(unittest.TestCase):
    def testdataexactframesize(self):
        data = util.bytesio(b'x' * framing.DEFAULT_MAX_FRAME_SIZE)

        stream = framing.stream(1)
        frames = list(
            framing.createcommandframes(stream, 1, b'command', {}, data)
        )
        self.assertEqual(
            frames,
            [
                ffs(
                    b'1 1 stream-begin command-request new|have-data '
                    b"cbor:{b'name': b'command'}"
                ),
                ffs(b'1 1 0 command-data continuation %s' % data.getvalue()),
                ffs(b'1 1 0 command-data eos '),
            ],
        )

    def testdatamultipleframes(self):
        data = util.bytesio(b'x' * (framing.DEFAULT_MAX_FRAME_SIZE + 1))

        stream = framing.stream(1)
        frames = list(
            framing.createcommandframes(stream, 1, b'command', {}, data)
        )
        self.assertEqual(
            frames,
            [
                ffs(
                    b'1 1 stream-begin command-request new|have-data '
                    b"cbor:{b'name': b'command'}"
                ),
                ffs(
                    b'1 1 0 command-data continuation %s'
                    % (b'x' * framing.DEFAULT_MAX_FRAME_SIZE)
                ),
                ffs(b'1 1 0 command-data eos x'),
            ],
        )

    def testargsanddata(self):
        data = util.bytesio(b'x' * 100)

        stream = framing.stream(1)
        frames = list(
            framing.createcommandframes(
                stream,
                1,
                b'command',
                {
                    b'key1': b'key1value',
                    b'key2': b'key2value',
                    b'key3': b'key3value',
                },
                data,
            )
        )

        self.assertEqual(
            frames,
            [
                ffs(
                    b'1 1 stream-begin command-request new|have-data '
                    b"cbor:{b'name': b'command', b'args': {b'key1': b'key1value', "
                    b"b'key2': b'key2value', b'key3': b'key3value'}}"
                ),
                ffs(b'1 1 0 command-data eos %s' % data.getvalue()),
            ],
        )

    if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
        # Python 3.7 deprecates the regex*p* version, but 2.7 lacks
        # the regex version.
        assertRaisesRegex = (  # camelcase-required
            unittest.TestCase.assertRaisesRegexp
        )

    def testtextoutputformattingstringtype(self):
        """Formatting string must be bytes."""
        with self.assertRaisesRegex(ValueError, 'must use bytes formatting '):
            list(
                framing.createtextoutputframe(
                    None, 1, [(b'foo'.decode('ascii'), [], [])]
                )
            )

    def testtextoutputargumentbytes(self):
        with self.assertRaisesRegex(ValueError, 'must use bytes for argument'):
            list(
                framing.createtextoutputframe(
                    None, 1, [(b'foo', [b'foo'.decode('ascii')], [])]
                )
            )

    def testtextoutputlabelbytes(self):
        with self.assertRaisesRegex(ValueError, 'must use bytes for labels'):
            list(
                framing.createtextoutputframe(
                    None, 1, [(b'foo', [], [b'foo'.decode('ascii')])]
                )
            )

    def testtextoutput1simpleatom(self):
        stream = framing.stream(1)
        val = list(framing.createtextoutputframe(stream, 1, [(b'foo', [], [])]))

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo'}]"
                ),
            ],
        )

    def testtextoutput2simpleatoms(self):
        stream = framing.stream(1)
        val = list(
            framing.createtextoutputframe(
                stream,
                1,
                [
                    (b'foo', [], []),
                    (b'bar', [], []),
                ],
            )
        )

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo'}, {b'msg': b'bar'}]"
                )
            ],
        )

    def testtextoutput1arg(self):
        stream = framing.stream(1)
        val = list(
            framing.createtextoutputframe(
                stream,
                1,
                [
                    (b'foo %s', [b'val1'], []),
                ],
            )
        )

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo %s', b'args': [b'val1']}]"
                )
            ],
        )

    def testtextoutput2arg(self):
        stream = framing.stream(1)
        val = list(
            framing.createtextoutputframe(
                stream,
                1,
                [
                    (b'foo %s %s', [b'val', b'value'], []),
                ],
            )
        )

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo %s %s', b'args': [b'val', b'value']}]"
                )
            ],
        )

    def testtextoutput1label(self):
        stream = framing.stream(1)
        val = list(
            framing.createtextoutputframe(
                stream,
                1,
                [
                    (b'foo', [], [b'label']),
                ],
            )
        )

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo', b'labels': [b'label']}]"
                )
            ],
        )

    def testargandlabel(self):
        stream = framing.stream(1)
        val = list(
            framing.createtextoutputframe(
                stream,
                1,
                [
                    (b'foo %s', [b'arg'], [b'label']),
                ],
            )
        )

        self.assertEqual(
            val,
            [
                ffs(
                    b'1 1 stream-begin text-output 0 '
                    b"cbor:[{b'msg': b'foo %s', b'args': [b'arg'], "
                    b"b'labels': [b'label']}]"
                )
            ],
        )


if __name__ == '__main__':
    import silenttestrunner

    silenttestrunner.main(__name__)