/usr/share/pyshared/ZEO/tests/protocols.test is in python-zodb 1:3.9.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | Test that multiple protocols are supported
==========================================
A full test of all protocols isn't practical. But we'll do a limited
test that at least the current and previous protocols are supported in
both directions.
Let's start a Z308 server
>>> storage_conf = '''
... <blobstorage>
... blob-dir server-blobs
... <filestorage>
... path Data.fs
... </filestorage>
... </blobstorage>
... '''
>>> addr, admin = start_server(
... storage_conf, dict(invalidation_queue_size=5), protocol='Z308')
A current client should be able to connect to a old server:
>>> import ZEO, ZODB.blob, transaction
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> wait_connected(db.storage)
>>> db.storage._connection.peer_protocol_version
'Z308'
>>> conn = db.open()
>>> conn.root().x = 0
>>> transaction.commit()
>>> len(db.history(conn.root()._p_oid, 99))
2
>>> conn.root()['blob1'] = ZODB.blob.Blob()
>>> conn.root()['blob1'].open('w').write('blob data 1')
>>> transaction.commit()
>>> db2 = ZEO.DB(addr, blob_dir='server-blobs', shared_blob_dir=True)
>>> wait_connected(db2.storage)
>>> conn2 = db2.open()
>>> for i in range(5):
... conn2.root().x += 1
... transaction.commit()
>>> conn2.root()['blob2'] = ZODB.blob.Blob()
>>> conn2.root()['blob2'].open('w').write('blob data 2')
>>> transaction.commit()
>>> conn.sync()
>>> conn.root().x
5
>>> db.close()
>>> for i in range(2):
... conn2.root().x += 1
... transaction.commit()
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> wait_connected(db.storage)
>>> conn = db.open()
>>> conn.root().x
7
>>> db.close()
>>> for i in range(10):
... conn2.root().x += 1
... transaction.commit()
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> wait_connected(db.storage)
>>> conn = db.open()
>>> conn.root().x
17
>>> conn.root()['blob1'].open().read()
'blob data 1'
>>> conn.root()['blob2'].open().read()
'blob data 2'
Note that when taking to a 3.8 server, iteration won't work:
>>> db.storage.iterator()
Traceback (most recent call last):
...
NotImplementedError
>>> db2.close()
>>> db.close()
>>> stop_server(admin)
>>> import os, zope.testing.setupstack
>>> os.remove('client-1.zec')
>>> zope.testing.setupstack.rmtree('blobs')
>>> zope.testing.setupstack.rmtree('server-blobs')
And the other way around:
>>> addr, _ = start_server(storage_conf, dict(invalidation_queue_size=5))
Note that we'll have to pull some hijinks:
>>> import ZEO.zrpc.connection
>>> old_current_protocol = ZEO.zrpc.connection.Connection.current_protocol
>>> ZEO.zrpc.connection.Connection.current_protocol = 'Z308'
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> db.storage._connection.peer_protocol_version
'Z308'
>>> wait_connected(db.storage)
>>> conn = db.open()
>>> conn.root().x = 0
>>> transaction.commit()
>>> len(db.history(conn.root()._p_oid, 99))
2
>>> conn.root()['blob1'] = ZODB.blob.Blob()
>>> conn.root()['blob1'].open('w').write('blob data 1')
>>> transaction.commit()
>>> db2 = ZEO.DB(addr, blob_dir='server-blobs', shared_blob_dir=True)
>>> wait_connected(db2.storage)
>>> conn2 = db2.open()
>>> for i in range(5):
... conn2.root().x += 1
... transaction.commit()
>>> conn2.root()['blob2'] = ZODB.blob.Blob()
>>> conn2.root()['blob2'].open('w').write('blob data 2')
>>> transaction.commit()
>>> conn.sync()
>>> conn.root().x
5
>>> db.close()
>>> for i in range(2):
... conn2.root().x += 1
... transaction.commit()
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> wait_connected(db.storage)
>>> conn = db.open()
>>> conn.root().x
7
>>> db.close()
>>> for i in range(10):
... conn2.root().x += 1
... transaction.commit()
>>> db = ZEO.DB(addr, client='client', blob_dir='blobs')
>>> wait_connected(db.storage)
>>> conn = db.open()
>>> conn.root().x
17
>>> conn.root()['blob1'].open().read()
'blob data 1'
>>> conn.root()['blob2'].open().read()
'blob data 2'
Make some old protocol calls:
>>> db.storage._server.rpc.call('getSerial', conn.root()._p_oid
... ) == conn.root()._p_serial
True
>>> p, s, v, x, y = db.storage._server.rpc.call('zeoLoad',
... conn.root()._p_oid)
>>> (v, x, y) == ('', None, None)
True
>>> db.storage.load(conn.root()._p_oid) == (p, s)
True
>>> db2.close()
>>> db.close()
Undo the hijinks:
>>> ZEO.zrpc.connection.Connection.current_protocol = old_current_protocol
|