← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/matchers.py

  • Committer: Jonathan Riddell
  • Date: 2011-09-20 11:46:28 UTC
  • mto: This revision was merged to the branch mainline in revision 6153.
  • Revision ID: jriddell@canonical.com-20110920114628-o8idd3n4eb4v3n32
fix order of imports

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/matchers.py
27
27
"""
28
28
 
29
29
__all__ = [
30
 
    'ReturnsCallableLeavingObjectUnlocked',
 
30
    'HasLayout',
 
31
    'MatchesAncestry',
 
32
    'ReturnsUnlockable',
31
33
    ]
32
34
 
33
 
from testtools.matchers import Mismatch, Matcher
34
 
 
35
 
 
36
 
class ReturnsCallableLeavingObjectUnlocked(Matcher):
 
35
from bzrlib import (
 
36
    osutils,
 
37
    revision as _mod_revision,
 
38
    )
 
39
 
 
40
from testtools.matchers import Equals, Mismatch, Matcher
 
41
 
 
42
 
 
43
class ReturnsUnlockable(Matcher):
37
44
    """A matcher that checks for the pattern we want lock* methods to have:
38
45
 
39
 
    They should return a callable.
40
 
    Calling that callable should unlock the original object.
 
46
    They should return an object with an unlock() method.
 
47
    Calling that method should unlock the original object.
41
48
 
42
49
    :ivar lockable_thing: The object which can be locked that will be
43
50
        inspected.
48
55
        self.lockable_thing = lockable_thing
49
56
 
50
57
    def __str__(self):
51
 
        return ('ReturnsCallableLeavingObjectUnlocked(lockable_thing=%s)' % 
 
58
        return ('ReturnsUnlockable(lockable_thing=%s)' %
52
59
            self.lockable_thing)
53
60
 
54
61
    def match(self, lock_method):
55
 
        lock_method()()
 
62
        lock_method().unlock()
56
63
        if self.lockable_thing.is_locked():
57
64
            return _IsLocked(self.lockable_thing)
58
65
        return None
66
73
 
67
74
    def describe(self):
68
75
        return "%s is locked" % self.lockable_thing
 
76
 
 
77
 
 
78
class _AncestryMismatch(Mismatch):
 
79
    """Ancestry matching mismatch."""
 
80
 
 
81
    def __init__(self, tip_revision, got, expected):
 
82
        self.tip_revision = tip_revision
 
83
        self.got = got
 
84
        self.expected = expected
 
85
 
 
86
    def describe(self):
 
87
        return "mismatched ancestry for revision %r was %r, expected %r" % (
 
88
            self.tip_revision, self.got, self.expected)
 
89
 
 
90
 
 
91
class MatchesAncestry(Matcher):
 
92
    """A matcher that checks the ancestry of a particular revision.
 
93
 
 
94
    :ivar graph: Graph in which to check the ancestry
 
95
    :ivar revision_id: Revision id of the revision
 
96
    """
 
97
 
 
98
    def __init__(self, repository, revision_id):
 
99
        Matcher.__init__(self)
 
100
        self.repository = repository
 
101
        self.revision_id = revision_id
 
102
 
 
103
    def __str__(self):
 
104
        return ('MatchesAncestry(repository=%r, revision_id=%r)' % (
 
105
            self.repository, self.revision_id))
 
106
 
 
107
    def match(self, expected):
 
108
        self.repository.lock_read()
 
109
        try:
 
110
            graph = self.repository.get_graph()
 
111
            got = [r for r, p in graph.iter_ancestry([self.revision_id])]
 
112
            if _mod_revision.NULL_REVISION in got:
 
113
                got.remove(_mod_revision.NULL_REVISION)
 
114
        finally:
 
115
            self.repository.unlock()
 
116
        if sorted(got) != sorted(expected):
 
117
            return _AncestryMismatch(self.revision_id, sorted(got),
 
118
                sorted(expected))
 
119
 
 
120
 
 
121
class HasLayout(Matcher):
 
122
    """A matcher that checks if a tree has a specific layout.
 
123
 
 
124
    :ivar entries: List of expected entries, as (path, file_id) pairs.
 
125
    """
 
126
 
 
127
    def __init__(self, entries):
 
128
        Matcher.__init__(self)
 
129
        self.entries = entries
 
130
 
 
131
    def get_tree_layout(self, tree):
 
132
        """Get the (path, file_id) pairs for the current tree."""
 
133
        tree.lock_read()
 
134
        try:
 
135
            for path, ie in tree.iter_entries_by_dir():
 
136
                if ie.parent_id is None:
 
137
                    yield (u"", ie.file_id)
 
138
                else:
 
139
                    yield (path+ie.kind_character(), ie.file_id)
 
140
        finally:
 
141
            tree.unlock()
 
142
 
 
143
    @staticmethod
 
144
    def _strip_unreferenced_directories(entries):
 
145
        """Strip all directories that don't (in)directly contain any files.
 
146
 
 
147
        :param entries: List of path strings or (path, ie) tuples to process
 
148
        """
 
149
        directories = []
 
150
        for entry in entries:
 
151
            if isinstance(entry, basestring):
 
152
                path = entry
 
153
            else:
 
154
                path = entry[0]
 
155
            if not path or path[-1] == "/":
 
156
                # directory
 
157
                directories.append((path, entry))
 
158
            else:
 
159
                # Yield the referenced parent directories
 
160
                for dirpath, direntry in directories:
 
161
                    if osutils.is_inside(dirpath, path):
 
162
                        yield direntry
 
163
                directories = []
 
164
                yield entry
 
165
 
 
166
    def __str__(self):
 
167
        return 'HasLayout(%r)' % self.entries
 
168
 
 
169
    def match(self, tree):
 
170
        actual = list(self.get_tree_layout(tree))
 
171
        if self.entries and isinstance(self.entries[0], basestring):
 
172
            actual = [path for (path, fileid) in actual]
 
173
        if not tree.has_versioned_directories():
 
174
            entries = list(self._strip_unreferenced_directories(self.entries))
 
175
        else:
 
176
            entries = self.entries
 
177
        return Equals(entries).match(actual)