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  • Committer: Patch Queue Manager
  • Date: 2011-12-14 12:53:59 UTC
  • mfrom: (6352.2.5 hpss-no-vfs)
  • Revision ID: pqm@pqm.ubuntu.com-20111214125359-l2d2nv046utd1vfz
(jelmer) Add ContainsNoVfsCalls matcher. (Jelmer Vernooij)

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bzrlib/tests/matchers.py
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__all__ = [
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    'HasLayout',
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    'MatchesAncestry',
 
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    'ContainsNoVfsCalls',
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    'ReturnsUnlockable',
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    ]
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    osutils,
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    revision as _mod_revision,
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    )
 
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from bzrlib import lazy_import
 
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lazy_import.lazy_import(globals(),
 
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"""
 
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from bzrlib.smart.request import request_handlers as smart_request_handlers
 
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from bzrlib.smart import vfs
 
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""")
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from testtools.matchers import Equals, Mismatch, Matcher
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        else:
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            entries = self.entries
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        return Equals(entries).match(actual)
 
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class _NoVfsCallsMismatch(Mismatch):
 
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    """Mismatch describing a list of HPSS calls which includes VFS requests."""
 
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    def __init__(self, vfs_calls):
 
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        self.vfs_calls = vfs_calls
 
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    def describe(self):
 
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        return "no VFS calls expected, got: %s" % ",".join([
 
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            "%s(%s)" % (c.method,
 
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                ", ".join([repr(a) for a in c.args])) for c in self.vfs_calls])
 
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class ContainsNoVfsCalls(Matcher):
 
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    """Ensure that none of the specified calls are HPSS calls."""
 
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    def __str__(self):
 
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        return 'ContainsNoVfsCalls()'
 
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    @classmethod
 
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    def match(cls, hpss_calls):
 
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        vfs_calls = []
 
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        for call in hpss_calls:
 
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            try:
 
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                request_method = smart_request_handlers.get(call.call.method)
 
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            except KeyError:
 
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                # A method we don't know about doesn't count as a VFS method.
 
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                continue
 
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            if issubclass(request_method, vfs.VfsRequest):
 
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                vfs_calls.append(call.call)
 
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        if len(vfs_calls) == 0:
 
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            return None
 
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        return _NoVfsCallsMismatch(vfs_calls)