func (s tagSetSuite) TestDifference(c *gc.C) {
t1 := set.NewTags(s.foo, s.bar)
t2 := set.NewTags(s.foo, s.baz, s.bang)
diff1 := t1.Difference(t2)
diff2 := t2.Difference(t1)
c.Assert(diff1, gc.DeepEquals, set.NewTags(s.bar))
c.Assert(diff2, gc.DeepEquals, set.NewTags(s.baz, s.bang))
}
// MinionReports implements ModelMigration.
func (mig *modelMigration) MinionReports() (*MinionReports, error) {
all, err := mig.getAllAgents()
if err != nil {
return nil, errors.Trace(err)
}
phase, err := mig.Phase()
if err != nil {
return nil, errors.Annotate(err, "retrieving phase")
}
coll, closer := mig.st.getCollection(migrationsMinionSyncC)
defer closer()
query := coll.Find(bson.M{"_id": bson.M{
"$regex": "^" + mig.minionReportId(phase, ".+"),
}})
query = query.Select(bson.M{
"entity-key": 1,
"success": 1,
})
var docs []bson.M
if err := query.All(&docs); err != nil {
return nil, errors.Annotate(err, "retrieving minion reports")
}
succeeded := set.NewTags()
failed := set.NewTags()
for _, doc := range docs {
entityKey, ok := doc["entity-key"].(string)
if !ok {
return nil, errors.Errorf("unexpected entity-key %v", doc["entity-key"])
}
tag, err := globalKeyToAgentTag(entityKey)
if err != nil {
return nil, errors.Trace(err)
}
success, ok := doc["success"].(bool)
if !ok {
return nil, errors.Errorf("unexpected success value: %v", doc["success"])
}
if success {
succeeded.Add(tag)
} else {
failed.Add(tag)
}
}
unknown := all.Difference(succeeded).Difference(failed)
return &MinionReports{
Succeeded: succeeded.Values(),
Failed: failed.Values(),
Unknown: unknown.Values(),
}, nil
}
func (s tagSetSuite) TestUnion(c *gc.C) {
t1 := set.NewTags(s.foo, s.bar)
t2 := set.NewTags(s.foo, s.baz, s.bang)
union1 := t1.Union(t2)
union2 := t2.Union(t1)
c.Assert(union1.Size(), gc.Equals, 4)
c.Assert(union2.Size(), gc.Equals, 4)
c.Assert(union1, gc.DeepEquals, union2)
c.Assert(union1, gc.DeepEquals, set.NewTags(s.foo, s.bar, s.baz, s.bang))
}
func (s tagSetSuite) TestIsEmpty(c *gc.C) {
// Empty sets are empty.
t := set.NewTags()
c.Assert(t.IsEmpty(), gc.Equals, true)
// Non-empty sets are not empty.
t = set.NewTags(s.foo)
c.Assert(t.IsEmpty(), gc.Equals, false)
// Newly empty sets work too.
t.Remove(s.foo)
c.Assert(t.IsEmpty(), gc.Equals, true)
}
func (s tagSetSuite) TestIntersection(c *gc.C) {
t1 := set.NewTags(s.foo, s.bar)
t2 := set.NewTags(s.foo, s.baz, s.bang)
int1 := t1.Intersection(t2)
int2 := t2.Intersection(t1)
c.Assert(int1.Size(), gc.Equals, 1)
c.Assert(int2.Size(), gc.Equals, 1)
c.Assert(int1, gc.DeepEquals, int2)
c.Assert(int1, gc.DeepEquals, set.NewTags(s.foo))
}
func (s tagSetSuite) TestRemove(c *gc.C) {
t := set.NewTags(s.foo, s.bar)
t.Remove(s.foo)
c.Assert(t.Contains(s.foo), gc.Equals, false)
c.Assert(t.Contains(s.bar), gc.Equals, true)
}
func (s tagSetSuite) TestAddDuplicate(c *gc.C) {
t := set.NewTags()
t.Add(s.foo)
t.Add(s.bar)
t.Add(s.bar)
c.Assert(t.Size(), gc.Equals, 2)
}
func (s *attachmentsSuite) TestAttachmentsUpdateShortCircuitDeath(c *gc.C) {
stateDir := c.MkDir()
unitTag := names.NewUnitTag("mysql/0")
abort := make(chan struct{})
storageTag0 := names.NewStorageTag("data/0")
storageTag1 := names.NewStorageTag("data/1")
removed := set.NewTags()
st := &mockStorageAccessor{
unitStorageAttachments: func(u names.UnitTag) ([]params.StorageAttachmentId, error) {
return nil, nil
},
remove: func(s names.StorageTag, u names.UnitTag) error {
c.Assert(u, gc.Equals, unitTag)
removed.Add(s)
return nil
},
}
att, err := storage.NewAttachments(st, unitTag, stateDir, abort)
c.Assert(err, jc.ErrorIsNil)
r := storage.NewResolver(att)
// First make sure we create a storage-attached hook operation for
// data/0. We do this to show that until the hook is *committed*,
// we will still short-circuit removal.
localState := resolver.LocalState{State: operation.State{
Kind: operation.Continue,
}}
_, err = r.NextOp(localState, remotestate.Snapshot{
Life: params.Alive,
Storage: map[names.StorageTag]remotestate.StorageSnapshot{
storageTag0: {
Life: params.Alive,
Kind: params.StorageKindBlock,
Location: "/dev/sdb",
Attached: true,
},
},
}, &mockOperations{})
c.Assert(err, jc.ErrorIsNil)
for _, storageTag := range []names.StorageTag{storageTag0, storageTag1} {
_, err = r.NextOp(localState, remotestate.Snapshot{
Life: params.Alive,
Storage: map[names.StorageTag]remotestate.StorageSnapshot{
storageTag: {Life: params.Dying},
},
}, nil)
c.Assert(err, gc.Equals, resolver.ErrNoOperation)
}
c.Assert(removed.SortedValues(), jc.DeepEquals, []names.Tag{
storageTag0, storageTag1,
})
}
func (s *storageContextAccessor) StorageTags() []names.StorageTag {
tags := set.NewTags()
for tag := range s.storage {
tags.Add(tag)
}
storageTags := make([]names.StorageTag, len(tags))
for i, tag := range tags.SortedValues() {
storageTags[i] = tag.(names.StorageTag)
}
return storageTags
}
// StorageTags returns the names.StorageTags for the active storage attachments.
func (a *Attachments) StorageTags() []names.StorageTag {
tags := set.NewTags()
for tag := range a.storagers {
tags.Add(tag)
}
storageTags := make([]names.StorageTag, tags.Size())
for i, tag := range tags.SortedValues() {
storageTags[i] = tag.(names.StorageTag)
}
return storageTags
}
func (tagSetSuite) TestSize(c *gc.C) {
// Empty sets are empty.
s := set.NewTags()
c.Assert(s.Size(), gc.Equals, 0)
s, err := set.NewTagsFromStrings(
"unit-wordpress-0",
"unit-rabbitmq-server-0",
)
c.Assert(err, gc.IsNil)
c.Assert(s.Size(), gc.Equals, 2)
}
// StorageTags implements jujuc.ContextStorage.
func (c *ContextStorage) StorageTags() ([]names.StorageTag, error) {
c.stub.AddCall("StorageTags")
tags := set.NewTags()
for tag := range c.info.Storage {
tags.Add(tag)
}
storageTags := make([]names.StorageTag, tags.Size())
for i, tag := range tags.SortedValues() {
storageTags[i] = tag.(names.StorageTag)
}
return storageTags, c.stub.NextErr()
}
// processPendingVolumeBlockDevices is called before waiting for any events,
// to force a block-device query for any volumes for which we have not
// previously observed block devices.
func processPendingVolumeBlockDevices(ctx *context) error {
if len(ctx.pendingVolumeBlockDevices) == 0 {
logger.Tracef("no pending volume block devices")
return nil
}
volumeTags := make([]names.VolumeTag, len(ctx.pendingVolumeBlockDevices))
for i, tag := range ctx.pendingVolumeBlockDevices.SortedValues() {
volumeTags[i] = tag.(names.VolumeTag)
}
// Clear out the pending set, so we don't force-refresh again.
ctx.pendingVolumeBlockDevices = set.NewTags()
return refreshVolumeBlockDevices(ctx, volumeTags)
}
func (tagSetSuite) TestSizeDuplicate(c *gc.C) {
// Empty sets are empty.
s := set.NewTags()
c.Assert(s.Size(), gc.Equals, 0)
// Size returns number of unique values.
s, err := set.NewTagsFromStrings(
"unit-wordpress-0",
"unit-rabbitmq-server-0",
"unit-wordpress-0",
)
c.Assert(err, gc.IsNil)
c.Assert(s.Size(), gc.Equals, 2)
}
// storageChanged responds to unit storage changes.
func (f *filter) storageChanged(changed []names.StorageTag) {
tags := set.NewTags() // f.storage is []StorageTag, not []Tag
for _, tag := range f.storage {
tags.Add(tag)
}
for _, tag := range changed {
tags.Add(tag)
}
if len(f.storage) != len(tags) {
storage := make([]names.StorageTag, len(tags))
for i, tag := range tags.SortedValues() {
storage[i] = tag.(names.StorageTag)
}
f.storage = storage
f.outStorage = f.outStorageOn
}
}
func (mig *modelMigration) loadAgentTags(collName, fieldName string, convert func(string) names.Tag) (
set.Tags, error,
) {
// During migrations we know that nothing there are no machines or
// units being provisioned or destroyed so a simple query of the
// collections will do.
coll, closer := mig.st.getCollection(collName)
defer closer()
var docs []bson.M
err := coll.Find(nil).Select(bson.M{fieldName: 1}).All(&docs)
if err != nil {
return nil, errors.Trace(err)
}
out := set.NewTags()
for _, doc := range docs {
v, ok := doc[fieldName].(string)
if !ok {
return nil, errors.Errorf("invalid %s value: %v", fieldName, doc[fieldName])
}
out.Add(convert(v))
}
return out, nil
}
func (s tagSetSuite) TestInitialValues(c *gc.C) {
t := set.NewTags(s.foo, s.bar)
c.Assert(t.Size(), gc.Equals, 2)
}
func (s tagSetSuite) TestSortedValues(c *gc.C) {
t := set.NewTags(s.foo, s.bang, s.baz, s.bar)
values := t.SortedValues()
c.Assert(values, gc.DeepEquals, []names.Tag{s.bang, s.baz, s.bar, s.foo})
}
func (tagSetSuite) TestEmpty(c *gc.C) {
t := set.NewTags()
c.Assert(t.Size(), gc.Equals, 0)
}
func (s tagSetSuite) TestRemoveNonExistent(c *gc.C) {
t := set.NewTags()
t.Remove(s.foo)
c.Assert(t.Size(), gc.Equals, 0)
}
func (s tagSetSuite) TestAdd(c *gc.C) {
t := set.NewTags()
t.Add(s.foo)
c.Assert(t.Size(), gc.Equals, 1)
c.Assert(t.Contains(s.foo), gc.Equals, true)
}