/usr/share/pyshared/ZEO/tests/zdoptions.test is in python-zodb 1:3.10.5-0ubuntu3.
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=======================================
This is initially motivated by a desire to remove the requirement of
specifying a storage name when there is only one storage.
Storage Names
-------------
It is an error not to specify any storages:
>>> import StringIO, sys, ZEO.runzeo
>>> stderr = sys.stderr
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... """)
>>> sys.stderr = StringIO.StringIO()
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
Traceback (most recent call last):
...
SystemExit: 2
>>> print sys.stderr.getvalue() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
Error: not enough values for section type 'zodb.storage';
0 found, 1 required
...
But we can specify a storage without a name:
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... <mappingstorage>
... </mappingstorage>
... """)
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
>>> [storage.name for storage in options.storages]
['1']
We can't have multiple unnamed storages:
>>> sys.stderr = StringIO.StringIO()
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... <mappingstorage>
... </mappingstorage>
... <mappingstorage>
... </mappingstorage>
... """)
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
Traceback (most recent call last):
...
SystemExit: 2
>>> print sys.stderr.getvalue() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
Error: No more than one storage may be unnamed.
...
Or an unnamed storage and one named '1':
>>> sys.stderr = StringIO.StringIO()
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... <mappingstorage>
... </mappingstorage>
... <mappingstorage 1>
... </mappingstorage>
... """)
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
Traceback (most recent call last):
...
SystemExit: 2
>>> print sys.stderr.getvalue() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
Error: Can't have an unnamed storage and a storage named 1.
...
But we can have multiple storages:
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... <mappingstorage x>
... </mappingstorage>
... <mappingstorage y>
... </mappingstorage>
... """)
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
>>> [storage.name for storage in options.storages]
['x', 'y']
As long as the names are unique:
>>> sys.stderr = StringIO.StringIO()
>>> open('config', 'w').write("""
... <zeo>
... address 8100
... </zeo>
... <mappingstorage 1>
... </mappingstorage>
... <mappingstorage 1>
... </mappingstorage>
... """)
>>> options = ZEO.runzeo.ZEOOptions()
>>> options.realize('-C config'.split())
Traceback (most recent call last):
...
SystemExit: 2
>>> print sys.stderr.getvalue() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
Error: section names must not be re-used within the same container:'1'
...
.. Cleanup =====================================================
>>> sys.stderr = stderr
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