import time from zope.interface import implements from twisted.trial import unittest from twisted.internet import defer from allmydata import uri, dirnode from allmydata.immutable import upload from allmydata.interfaces import IURI, IClient, IMutableFileNode, \ INewDirectoryURI, IReadonlyNewDirectoryURI, IFileNode, \ ExistingChildError, NoSuchChildError, \ IDeepCheckResults, IDeepCheckAndRepairResults from allmydata.mutable.node import MutableFileNode from allmydata.mutable.common import UncoordinatedWriteError from allmydata.util import hashutil, base32 from allmydata.monitor import Monitor from allmydata.test.common import make_chk_file_uri, make_mutable_file_uri, \ FakeDirectoryNode, create_chk_filenode, ErrorMixin, SystemTestMixin from allmydata.checker_results import CheckerResults, CheckAndRepairResults import common_util as testutil # to test dirnode.py, we want to construct a tree of real DirectoryNodes that # contain pointers to fake files. We start with a fake MutableFileNode that # stores all of its data in a static table. class Marker: implements(IFileNode, IMutableFileNode) # sure, why not def __init__(self, nodeuri): if not isinstance(nodeuri, str): nodeuri = nodeuri.to_string() self.nodeuri = nodeuri si = hashutil.tagged_hash("tag1", nodeuri)[:16] self.storage_index = si fp = hashutil.tagged_hash("tag2", nodeuri) self.verifieruri = uri.SSKVerifierURI(storage_index=si, fingerprint=fp) def get_uri(self): return self.nodeuri def get_readonly_uri(self): return self.nodeuri def get_verifier(self): return self.verifieruri def get_storage_index(self): return self.storage_index def check(self, monitor, verify=False): r = CheckerResults("", None) r.set_healthy(True) r.set_recoverable(True) return defer.succeed(r) def check_and_repair(self, monitor, verify=False): d = self.check(verify) def _got(cr): r = CheckAndRepairResults(None) r.pre_repair_results = r.post_repair_results = cr return r d.addCallback(_got) return d # dirnode requires three methods from the client: upload(), # create_node_from_uri(), and create_empty_dirnode(). Of these, upload() is # only used by the convenience composite method add_file(). class FakeClient: implements(IClient) def upload(self, uploadable): d = uploadable.get_size() d.addCallback(lambda size: uploadable.read(size)) def _got_data(datav): data = "".join(datav) n = create_chk_filenode(self, data) results = upload.UploadResults() results.uri = n.get_uri() return results d.addCallback(_got_data) return d def create_node_from_uri(self, u): u = IURI(u) if (INewDirectoryURI.providedBy(u) or IReadonlyNewDirectoryURI.providedBy(u)): return FakeDirectoryNode(self).init_from_uri(u) return Marker(u.to_string()) def create_empty_dirnode(self): n = FakeDirectoryNode(self) d = n.create() d.addCallback(lambda res: n) return d class Dirnode(unittest.TestCase, testutil.ShouldFailMixin, testutil.StallMixin, ErrorMixin): def setUp(self): self.client = FakeClient() def test_basic(self): d = self.client.create_empty_dirnode() def _done(res): self.failUnless(isinstance(res, FakeDirectoryNode)) rep = str(res) self.failUnless("RW" in rep) d.addCallback(_done) return d def test_corrupt(self): d = self.client.create_empty_dirnode() def _created(dn): u = make_mutable_file_uri() d = dn.set_uri(u"child", u, {}) d.addCallback(lambda res: dn.list()) def _check1(children): self.failUnless(u"child" in children) d.addCallback(_check1) d.addCallback(lambda res: self.shouldFail(NoSuchChildError, "get bogus", None, dn.get, u"bogus")) def _corrupt(res): filenode = dn._node si = IURI(filenode.get_uri()).storage_index old_contents = filenode.all_contents[si] # we happen to know that the writecap is encrypted near the # end of the string. Flip one of its bits and make sure we # detect the corruption. new_contents = testutil.flip_bit(old_contents, -10) # TODO: also test flipping bits in the other portions filenode.all_contents[si] = new_contents d.addCallback(_corrupt) def _check2(res): self.shouldFail(hashutil.IntegrityCheckError, "corrupt", "HMAC does not match, crypttext is corrupted", dn.list) d.addCallback(_check2) return d d.addCallback(_created) return d def test_check(self): d = self.client.create_empty_dirnode() d.addCallback(lambda dn: dn.check(Monitor())) def _done(res): self.failUnless(res.is_healthy()) d.addCallback(_done) return d def _test_deepcheck_create(self): # create a small tree with a loop, and some non-directories # root/ # root/subdir/ # root/subdir/file1 # root/subdir/link -> root d = self.client.create_empty_dirnode() def _created_root(rootnode): self._rootnode = rootnode return rootnode.create_empty_directory(u"subdir") d.addCallback(_created_root) def _created_subdir(subdir): self._subdir = subdir d = subdir.add_file(u"file1", upload.Data("data", None)) d.addCallback(lambda res: subdir.set_node(u"link", self._rootnode)) return d d.addCallback(_created_subdir) def _done(res): return self._rootnode d.addCallback(_done) return d def test_deepcheck(self): d = self._test_deepcheck_create() d.addCallback(lambda rootnode: rootnode.start_deep_check().when_done()) def _check_results(r): self.failUnless(IDeepCheckResults.providedBy(r)) c = r.get_counters() self.failUnlessEqual(c, {"count-objects-checked": 3, "count-objects-healthy": 3, "count-objects-unhealthy": 0, "count-objects-unrecoverable": 0, "count-corrupt-shares": 0, }) self.failIf(r.get_corrupt_shares()) self.failUnlessEqual(len(r.get_all_results()), 3) d.addCallback(_check_results) return d def test_deepcheck_and_repair(self): d = self._test_deepcheck_create() d.addCallback(lambda rootnode: rootnode.start_deep_check_and_repair().when_done()) def _check_results(r): self.failUnless(IDeepCheckAndRepairResults.providedBy(r)) c = r.get_counters() self.failUnlessEqual(c, {"count-objects-checked": 3, "count-objects-healthy-pre-repair": 3, "count-objects-unhealthy-pre-repair": 0, "count-objects-unrecoverable-pre-repair": 0, "count-corrupt-shares-pre-repair": 0, "count-objects-healthy-post-repair": 3, "count-objects-unhealthy-post-repair": 0, "count-objects-unrecoverable-post-repair": 0, "count-corrupt-shares-post-repair": 0, "count-repairs-attempted": 0, "count-repairs-successful": 0, "count-repairs-unsuccessful": 0, }) self.failIf(r.get_corrupt_shares()) self.failIf(r.get_remaining_corrupt_shares()) self.failUnlessEqual(len(r.get_all_results()), 3) d.addCallback(_check_results) return d def _mark_file_bad(self, rootnode): si = IURI(rootnode.get_uri())._filenode_uri.storage_index rootnode._node.bad_shares[si] = "unhealthy" return rootnode def test_deepcheck_problems(self): d = self._test_deepcheck_create() d.addCallback(lambda rootnode: self._mark_file_bad(rootnode)) d.addCallback(lambda rootnode: rootnode.start_deep_check().when_done()) def _check_results(r): c = r.get_counters() self.failUnlessEqual(c, {"count-objects-checked": 3, "count-objects-healthy": 2, "count-objects-unhealthy": 1, "count-objects-unrecoverable": 0, "count-corrupt-shares": 0, }) #self.failUnlessEqual(len(r.get_problems()), 1) # TODO d.addCallback(_check_results) return d def test_readonly(self): fileuri = make_chk_file_uri(1234) filenode = self.client.create_node_from_uri(fileuri) uploadable = upload.Data("some data", convergence="some convergence string") d = self.client.create_empty_dirnode() def _created(rw_dn): d2 = rw_dn.set_uri(u"child", fileuri) d2.addCallback(lambda res: rw_dn) return d2 d.addCallback(_created) def _ready(rw_dn): ro_uri = rw_dn.get_readonly_uri() ro_dn = self.client.create_node_from_uri(ro_uri) self.failUnless(ro_dn.is_readonly()) self.failUnless(ro_dn.is_mutable()) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.set_uri, u"newchild", fileuri) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.set_node, u"newchild", filenode) self.shouldFail(dirnode.NotMutableError, "set_nodes ro", None, ro_dn.set_nodes, [ (u"newchild", filenode) ]) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.add_file, u"newchild", uploadable) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.delete, u"child") self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.create_empty_directory, u"newchild") self.shouldFail(dirnode.NotMutableError, "set_metadata_for ro", None, ro_dn.set_metadata_for, u"child", {}) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, ro_dn.move_child_to, u"child", rw_dn) self.shouldFail(dirnode.NotMutableError, "set_uri ro", None, rw_dn.move_child_to, u"child", ro_dn) return ro_dn.list() d.addCallback(_ready) def _listed(children): self.failUnless(u"child" in children) d.addCallback(_listed) return d def failUnlessGreaterThan(self, a, b): self.failUnless(a > b, "%r should be > %r" % (a, b)) def failUnlessGreaterOrEqualThan(self, a, b): self.failUnless(a >= b, "%r should be >= %r" % (a, b)) def test_create(self): self.expected_manifest = [] self.expected_verifycaps = set() self.expected_storage_indexes = set() d = self.client.create_empty_dirnode() def _then(n): # / self.failUnless(n.is_mutable()) u = n.get_uri() self.failUnless(u) self.failUnless(u.startswith("URI:DIR2:"), u) u_ro = n.get_readonly_uri() self.failUnless(u_ro.startswith("URI:DIR2-RO:"), u_ro) u_v = n.get_verifier().to_string() self.failUnless(u_v.startswith("URI:DIR2-Verifier:"), u_v) self.expected_manifest.append( ((), u) ) self.expected_verifycaps.add(u_v) si = n.get_storage_index() self.expected_storage_indexes.add(base32.b2a(si)) expected_si = n._uri._filenode_uri.storage_index self.failUnlessEqual(si, expected_si) d = n.list() d.addCallback(lambda res: self.failUnlessEqual(res, {})) d.addCallback(lambda res: n.has_child(u"missing")) d.addCallback(lambda res: self.failIf(res)) fake_file_uri = make_mutable_file_uri() other_file_uri = make_mutable_file_uri() m = Marker(fake_file_uri) ffu_v = m.get_verifier().to_string() self.expected_manifest.append( ((u"child",) , m.get_uri()) ) self.expected_verifycaps.add(ffu_v) self.expected_storage_indexes.add(base32.b2a(m.get_storage_index())) d.addCallback(lambda res: n.set_uri(u"child", fake_file_uri)) d.addCallback(lambda res: self.shouldFail(ExistingChildError, "set_uri-no", "child 'child' already exists", n.set_uri, u"child", other_file_uri, overwrite=False)) # / # /child = mutable d.addCallback(lambda res: n.create_empty_directory(u"subdir")) # / # /child = mutable # /subdir = directory def _created(subdir): self.failUnless(isinstance(subdir, FakeDirectoryNode)) self.subdir = subdir new_v = subdir.get_verifier().to_string() assert isinstance(new_v, str) self.expected_manifest.append( ((u"subdir",), subdir.get_uri()) ) self.expected_verifycaps.add(new_v) si = subdir.get_storage_index() self.expected_storage_indexes.add(base32.b2a(si)) d.addCallback(_created) d.addCallback(lambda res: self.shouldFail(ExistingChildError, "mkdir-no", "child 'subdir' already exists", n.create_empty_directory, u"subdir", overwrite=False)) d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"child", u"subdir"]))) d.addCallback(lambda res: n.start_deep_stats().when_done()) def _check_deepstats(stats): self.failUnless(isinstance(stats, dict)) expected = {"count-immutable-files": 0, "count-mutable-files": 1, "count-literal-files": 0, "count-files": 1, "count-directories": 2, "size-immutable-files": 0, "size-literal-files": 0, #"size-directories": 616, # varies #"largest-directory": 616, "largest-directory-children": 2, "largest-immutable-file": 0, } for k,v in expected.iteritems(): self.failUnlessEqual(stats[k], v, "stats[%s] was %s, not %s" % (k, stats[k], v)) self.failUnless(stats["size-directories"] > 500, stats["size-directories"]) self.failUnless(stats["largest-directory"] > 500, stats["largest-directory"]) self.failUnlessEqual(stats["size-files-histogram"], []) d.addCallback(_check_deepstats) d.addCallback(lambda res: n.build_manifest().when_done()) def _check_manifest(res): manifest = res["manifest"] self.failUnlessEqual(sorted(manifest), sorted(self.expected_manifest)) stats = res["stats"] _check_deepstats(stats) self.failUnlessEqual(self.expected_verifycaps, res["verifycaps"]) self.failUnlessEqual(self.expected_storage_indexes, res["storage-index"]) d.addCallback(_check_manifest) def _add_subsubdir(res): return self.subdir.create_empty_directory(u"subsubdir") d.addCallback(_add_subsubdir) # / # /child = mutable # /subdir = directory # /subdir/subsubdir = directory d.addCallback(lambda res: n.get_child_at_path(u"subdir/subsubdir")) d.addCallback(lambda subsubdir: self.failUnless(isinstance(subsubdir, FakeDirectoryNode))) d.addCallback(lambda res: n.get_child_at_path(u"")) d.addCallback(lambda res: self.failUnlessEqual(res.get_uri(), n.get_uri())) d.addCallback(lambda res: n.get_metadata_for(u"child")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) d.addCallback(lambda res: self.shouldFail(NoSuchChildError, "gcamap-no", "nope", n.get_child_and_metadata_at_path, u"subdir/nope")) d.addCallback(lambda res: n.get_child_and_metadata_at_path(u"")) def _check_child_and_metadata1(res): child, metadata = res self.failUnless(isinstance(child, FakeDirectoryNode)) # edge-metadata needs at least one path segment self.failUnlessEqual(sorted(metadata.keys()), []) d.addCallback(_check_child_and_metadata1) d.addCallback(lambda res: n.get_child_and_metadata_at_path(u"child")) def _check_child_and_metadata2(res): child, metadata = res self.failUnlessEqual(child.get_uri(), fake_file_uri.to_string()) self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"]) d.addCallback(_check_child_and_metadata2) d.addCallback(lambda res: n.get_child_and_metadata_at_path(u"subdir/subsubdir")) def _check_child_and_metadata3(res): child, metadata = res self.failUnless(isinstance(child, FakeDirectoryNode)) self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"]) d.addCallback(_check_child_and_metadata3) # set_uri + metadata # it should be possible to add a child without any metadata d.addCallback(lambda res: n.set_uri(u"c2", fake_file_uri, {})) d.addCallback(lambda res: n.get_metadata_for(u"c2")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {})) # if we don't set any defaults, the child should get timestamps d.addCallback(lambda res: n.set_uri(u"c3", fake_file_uri)) d.addCallback(lambda res: n.get_metadata_for(u"c3")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) # or we can add specific metadata at set_uri() time, which # overrides the timestamps d.addCallback(lambda res: n.set_uri(u"c4", fake_file_uri, {"key": "value"})) d.addCallback(lambda res: n.get_metadata_for(u"c4")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"key": "value"})) d.addCallback(lambda res: n.delete(u"c2")) d.addCallback(lambda res: n.delete(u"c3")) d.addCallback(lambda res: n.delete(u"c4")) # set_node + metadata # it should be possible to add a child without any metadata d.addCallback(lambda res: n.set_node(u"d2", n, {})) d.addCallback(lambda res: self.client.create_empty_dirnode()) d.addCallback(lambda n2: self.shouldFail(ExistingChildError, "set_node-no", "child 'd2' already exists", n.set_node, u"d2", n2, overwrite=False)) d.addCallback(lambda res: n.get_metadata_for(u"d2")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {})) # if we don't set any defaults, the child should get timestamps d.addCallback(lambda res: n.set_node(u"d3", n)) d.addCallback(lambda res: n.get_metadata_for(u"d3")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) # or we can add specific metadata at set_node() time, which # overrides the timestamps d.addCallback(lambda res: n.set_node(u"d4", n, {"key": "value"})) d.addCallback(lambda res: n.get_metadata_for(u"d4")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"key": "value"})) d.addCallback(lambda res: n.delete(u"d2")) d.addCallback(lambda res: n.delete(u"d3")) d.addCallback(lambda res: n.delete(u"d4")) # metadata through set_children() d.addCallback(lambda res: n.set_children([ (u"e1", fake_file_uri), (u"e2", fake_file_uri, {}), (u"e3", fake_file_uri, {"key": "value"}), ])) d.addCallback(lambda res: self.shouldFail(ExistingChildError, "set_children-no", "child 'e1' already exists", n.set_children, [ (u"e1", other_file_uri), (u"new", other_file_uri), ], overwrite=False)) # and 'new' should not have been created d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failIf(u"new" in children)) d.addCallback(lambda res: n.get_metadata_for(u"e1")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) d.addCallback(lambda res: n.get_metadata_for(u"e2")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {})) d.addCallback(lambda res: n.get_metadata_for(u"e3")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"key": "value"})) d.addCallback(lambda res: n.delete(u"e1")) d.addCallback(lambda res: n.delete(u"e2")) d.addCallback(lambda res: n.delete(u"e3")) # metadata through set_nodes() d.addCallback(lambda res: n.set_nodes([ (u"f1", n), (u"f2", n, {}), (u"f3", n, {"key": "value"}), ])) d.addCallback(lambda res: self.shouldFail(ExistingChildError, "set_nodes-no", "child 'f1' already exists", n.set_nodes, [ (u"f1", n), (u"new", n), ], overwrite=False)) # and 'new' should not have been created d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failIf(u"new" in children)) d.addCallback(lambda res: n.get_metadata_for(u"f1")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) d.addCallback(lambda res: n.get_metadata_for(u"f2")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {})) d.addCallback(lambda res: n.get_metadata_for(u"f3")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"key": "value"})) d.addCallback(lambda res: n.delete(u"f1")) d.addCallback(lambda res: n.delete(u"f2")) d.addCallback(lambda res: n.delete(u"f3")) d.addCallback(lambda res: n.set_metadata_for(u"child", {"tags": ["web2.0-compatible"]})) d.addCallback(lambda n1: n1.get_metadata_for(u"child")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"tags": ["web2.0-compatible"]})) def _start(res): self._start_timestamp = time.time() d.addCallback(_start) # simplejson-1.7.1 (as shipped on Ubuntu 'gutsy') rounds all # floats to hundredeths (it uses str(num) instead of repr(num)). # simplejson-1.7.3 does not have this bug. To prevent this bug # from causing the test to fail, stall for more than a few # hundrededths of a second. d.addCallback(self.stall, 0.1) d.addCallback(lambda res: n.add_file(u"timestamps", upload.Data("stamp me", convergence="some convergence string"))) d.addCallback(self.stall, 0.1) def _stop(res): self._stop_timestamp = time.time() d.addCallback(_stop) d.addCallback(lambda res: n.get_metadata_for(u"timestamps")) def _check_timestamp1(metadata): self.failUnless("ctime" in metadata) self.failUnless("mtime" in metadata) self.failUnlessGreaterOrEqualThan(metadata["ctime"], self._start_timestamp) self.failUnlessGreaterOrEqualThan(self._stop_timestamp, metadata["ctime"]) self.failUnlessGreaterOrEqualThan(metadata["mtime"], self._start_timestamp) self.failUnlessGreaterOrEqualThan(self._stop_timestamp, metadata["mtime"]) # Our current timestamp rules say that replacing an existing # child should preserve the 'ctime' but update the mtime self._old_ctime = metadata["ctime"] self._old_mtime = metadata["mtime"] d.addCallback(_check_timestamp1) d.addCallback(self.stall, 2.0) # accomodate low-res timestamps d.addCallback(lambda res: n.set_node(u"timestamps", n)) d.addCallback(lambda res: n.get_metadata_for(u"timestamps")) def _check_timestamp2(metadata): self.failUnlessEqual(metadata["ctime"], self._old_ctime, "%s != %s" % (metadata["ctime"], self._old_ctime)) self.failUnlessGreaterThan(metadata["mtime"], self._old_mtime) return n.delete(u"timestamps") d.addCallback(_check_timestamp2) # also make sure we can add/update timestamps on a # previously-existing child that didn't have any, since there are # a lot of 0.7.0-generated edges around out there d.addCallback(lambda res: n.set_node(u"no_timestamps", n, {})) d.addCallback(lambda res: n.set_node(u"no_timestamps", n)) d.addCallback(lambda res: n.get_metadata_for(u"no_timestamps")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) d.addCallback(lambda res: n.delete(u"no_timestamps")) d.addCallback(lambda res: n.delete(u"subdir")) d.addCallback(lambda old_child: self.failUnlessEqual(old_child.get_uri(), self.subdir.get_uri())) d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"child"]))) uploadable = upload.Data("some data", convergence="some convergence string") d.addCallback(lambda res: n.add_file(u"newfile", uploadable)) d.addCallback(lambda newnode: self.failUnless(IFileNode.providedBy(newnode))) other_uploadable = upload.Data("some data", convergence="stuff") d.addCallback(lambda res: self.shouldFail(ExistingChildError, "add_file-no", "child 'newfile' already exists", n.add_file, u"newfile", other_uploadable, overwrite=False)) d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"child", u"newfile"]))) d.addCallback(lambda res: n.get_metadata_for(u"newfile")) d.addCallback(lambda metadata: self.failUnlessEqual(sorted(metadata.keys()), ["ctime", "mtime"])) d.addCallback(lambda res: n.add_file(u"newfile-metadata", uploadable, {"key": "value"})) d.addCallback(lambda newnode: self.failUnless(IFileNode.providedBy(newnode))) d.addCallback(lambda res: n.get_metadata_for(u"newfile-metadata")) d.addCallback(lambda metadata: self.failUnlessEqual(metadata, {"key": "value"})) d.addCallback(lambda res: n.delete(u"newfile-metadata")) d.addCallback(lambda res: n.create_empty_directory(u"subdir2")) def _created2(subdir2): self.subdir2 = subdir2 # put something in the way, to make sure it gets overwritten return subdir2.add_file(u"child", upload.Data("overwrite me", "converge")) d.addCallback(_created2) d.addCallback(lambda res: n.move_child_to(u"child", self.subdir2)) d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"newfile", u"subdir2"]))) d.addCallback(lambda res: self.subdir2.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"child"]))) d.addCallback(lambda res: self.subdir2.get(u"child")) d.addCallback(lambda child: self.failUnlessEqual(child.get_uri(), fake_file_uri.to_string())) # move it back, using new_child_name= d.addCallback(lambda res: self.subdir2.move_child_to(u"child", n, u"newchild")) d.addCallback(lambda res: n.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), sorted([u"newchild", u"newfile", u"subdir2"]))) d.addCallback(lambda res: self.subdir2.list()) d.addCallback(lambda children: self.failUnlessEqual(sorted(children.keys()), [])) # now make sure that we honor overwrite=False d.addCallback(lambda res: self.subdir2.set_uri(u"newchild", other_file_uri)) d.addCallback(lambda res: self.shouldFail(ExistingChildError, "move_child_to-no", "child 'newchild' already exists", n.move_child_to, u"newchild", self.subdir2, overwrite=False)) d.addCallback(lambda res: self.subdir2.get(u"newchild")) d.addCallback(lambda child: self.failUnlessEqual(child.get_uri(), other_file_uri.to_string())) return d d.addCallback(_then) d.addErrback(self.explain_error) return d class DeepStats(unittest.TestCase): def test_stats(self): ds = dirnode.DeepStats(None) ds.add("count-files") ds.add("size-immutable-files", 123) ds.histogram("size-files-histogram", 123) ds.max("largest-directory", 444) s = ds.get_results() self.failUnlessEqual(s["count-files"], 1) self.failUnlessEqual(s["size-immutable-files"], 123) self.failUnlessEqual(s["largest-directory"], 444) self.failUnlessEqual(s["count-literal-files"], 0) ds.add("count-files") ds.add("size-immutable-files", 321) ds.histogram("size-files-histogram", 321) ds.max("largest-directory", 2) s = ds.get_results() self.failUnlessEqual(s["count-files"], 2) self.failUnlessEqual(s["size-immutable-files"], 444) self.failUnlessEqual(s["largest-directory"], 444) self.failUnlessEqual(s["count-literal-files"], 0) self.failUnlessEqual(s["size-files-histogram"], [ (101, 316, 1), (317, 1000, 1) ]) ds = dirnode.DeepStats(None) for i in range(1, 1100): ds.histogram("size-files-histogram", i) ds.histogram("size-files-histogram", 4*1000*1000*1000*1000) # 4TB s = ds.get_results() self.failUnlessEqual(s["size-files-histogram"], [ (1, 3, 3), (4, 10, 7), (11, 31, 21), (32, 100, 69), (101, 316, 216), (317, 1000, 684), (1001, 3162, 99), (3162277660169L, 10000000000000L, 1), ]) class UCWEingMutableFileNode(MutableFileNode): please_ucwe_after_next_upload = False def _upload(self, new_contents, servermap): d = MutableFileNode._upload(self, new_contents, servermap) def _ucwe(res): if self.please_ucwe_after_next_upload: self.please_ucwe_after_next_upload = False raise UncoordinatedWriteError() return res d.addCallback(_ucwe) return d class UCWEingNewDirectoryNode(dirnode.NewDirectoryNode): filenode_class = UCWEingMutableFileNode class Deleter(SystemTestMixin, unittest.TestCase): def test_retry(self): # ticket #550, a dirnode.delete which experiences an # UncoordinatedWriteError will fail with an incorrect "you're # deleting something which isn't there" NoSuchChildError exception. # to trigger this, we start by creating a directory with a single # file in it. Then we create a special dirnode that uses a modified # MutableFileNode which will raise UncoordinatedWriteError once on # demand. We then call dirnode.delete, which ought to retry and # succeed. self.basedir = self.mktemp() d = self.set_up_nodes() d.addCallback(lambda ignored: self.clients[0].create_empty_dirnode()) small = upload.Data("Small enough for a LIT", None) def _created_dir(dn): self.root = dn self.root_uri = dn.get_uri() return dn.add_file(u"file", small) d.addCallback(_created_dir) def _do_delete(ignored): n = UCWEingNewDirectoryNode(self.clients[0]).init_from_uri(self.root_uri) assert n._node.please_ucwe_after_next_upload == False n._node.please_ucwe_after_next_upload = True # This should succeed, not raise an exception return n.delete(u"file") d.addCallback(_do_delete) return d