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  • Committer: exarkun
  • Date: 2009-07-07 20:35:43 UTC
  • Revision ID: svn-v4:866e43f7-fbfc-0310-8f2a-ec88d1da2979:trunk:17723
Merge scheduler-nonitem-1408-2

Author: exarkun
Reviewer: glyph
Fixes: #1408

Introduce an in-memory-only `IScheduler` adapter for `Store` which supercedes
the `Scheduler` and `SubScheduler` item classes.  `Scheduler` and `SubScheduler`
still exist, but they will be deprecated shortly, and then upgraded out of
existence.  The correct way to get the scheduler for a store is to adapt the
store to `IScheduler`.  This will succeed without any particular database
state being created to support it.

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Axiom/axiom/test/historic/test_parentHook2to3.py
 
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"""
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Test upgrading L{_SubSchedulerParentHook} from version 2 to 3.
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"""
 
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from axiom.test.historic.stubloader import StubbedTest
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from axiom.scheduler import Scheduler, _SubSchedulerParentHook
 
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from axiom.scheduler import _SubSchedulerParentHook
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from axiom.substore import SubStore
 
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from axiom.dependency import _DependencyConnector
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class SubSchedulerParentHookUpgradeTests(StubbedTest):
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    """
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    Test upgrading L{_SubSchedulerParentHook} from version 2 to 3.
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    """
 
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    def setUp(self):
 
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        d = StubbedTest.setUp(self)
 
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        def cbSetUp(ignored):
 
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            self.hook = self.store.findUnique(_SubSchedulerParentHook)
 
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        d.addCallback(cbSetUp)
 
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        return d
 
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    def test_attributesCopied(self):
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        """
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        L{_SubSchedulerParentHook} version 2's attributes should have been
 
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        The only attribute of L{_SubSchedulerParentHook} which still exists at
 
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        the current version, version 4, C{subStore}, ought to have been
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        copied over.
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        """
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        hook = self.store.findUnique(_SubSchedulerParentHook)
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        self.assertIdentical(hook.loginAccount, self.store.findUnique(SubStore))
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        self.assertIdentical(hook.scheduler, self.store.findUnique(Scheduler))
 
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        self.assertIdentical(
 
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            self.hook.subStore, self.store.findUnique(SubStore))
 
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    def test_uninstalled(self):
 
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        """
 
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        The record of the installation of L{_SubSchedulerParentHook} on the
 
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        store is deleted in the upgrade to schema version 4.
 
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        """
 
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        self.assertEquals(
 
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            list(self.store.query(
 
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                    _DependencyConnector,
 
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                    _DependencyConnector.installee == self.hook)),
 
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            [])