func (s *snapmgrTestSuite) TestUpdateUnaliasChangeConflict(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "some-snap", &snapstate.SnapState{
Active: true,
Sequence: []*snap.SideInfo{{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(7)}},
Current: snap.R(7),
SnapType: "app",
})
ts, err := snapstate.Update(s.state, "some-snap", "some-channel", snap.R(0), s.user.ID, snapstate.Flags{})
c.Assert(err, IsNil)
// need a change to make the tasks visible
s.state.NewChange("update", "...").AddAll(ts)
_, err = snapstate.Unalias(s.state, "some-snap", []string{"alias1"})
c.Assert(err, ErrorMatches, `snap "some-snap" has changes in progress`)
}
func (s *snapmgrTestSuite) TestUnliasTotalUndoRunThroughAliasConflict(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "alias-snap", &snapstate.SnapState{
Sequence: []*snap.SideInfo{
{RealName: "alias-snap", Revision: snap.R(11)},
},
Current: snap.R(11),
Active: true,
})
defer s.snapmgr.Stop()
s.state.Set("aliases", map[string]map[string]string{
"alias-snap": {
"alias1": "enabled",
},
})
chg := s.state.NewChange("scenario", "...")
ts, err := snapstate.Unalias(s.state, "alias-snap", []string{"alias1"})
c.Assert(err, IsNil)
chg.AddAll(ts)
tasks := ts.Tasks()
last := tasks[len(tasks)-1]
grabAlias1 := func(t *state.Task, _ *tomb.Tomb) error {
st := t.State()
st.Lock()
defer st.Unlock()
var allAliases map[string]map[string]string
err := st.Get("aliases", &allAliases)
c.Assert(err, IsNil)
c.Assert(allAliases, DeepEquals, map[string]map[string]string{
"alias-snap": {
"alias1": "disabled",
},
})
st.Set("aliases", map[string]map[string]string{
"alias-snap": {
"alias1": "disabled",
},
"other-snap": {
"alias1": "enabled",
},
})
return nil
}
s.snapmgr.AddAdhocTaskHandler("grab-alias1", grabAlias1, nil)
tgrab1 := s.state.NewTask("grab-alias1", "grab alias1 for other-snap")
tgrab1.WaitFor(last)
chg.AddTask(tgrab1)
terr := s.state.NewTask("error-trigger", "provoking total undo")
terr.WaitFor(tgrab1)
chg.AddTask(terr)
s.state.Unlock()
for i := 0; i < 5; i++ {
s.snapmgr.Ensure()
s.snapmgr.Wait()
}
s.state.Lock()
c.Assert(chg.Status(), Equals, state.ErrorStatus, Commentf("%v", chg.Err()))
rmAliases := []*backend.Alias{{"alias1", "alias-snap.cmd1"}}
expected := fakeOps{
{
op: "update-aliases",
rmAliases: rmAliases,
},
{
op: "matching-aliases",
},
{
op: "missing-aliases",
},
{
op: "update-aliases",
},
}
// start with an easier-to-read error if this fails:
c.Assert(s.fakeBackend.ops.Ops(), DeepEquals, expected.Ops())
c.Assert(s.fakeBackend.ops, DeepEquals, expected)
var allAliases map[string]map[string]string
err = s.state.Get("aliases", &allAliases)
c.Assert(err, IsNil)
c.Check(allAliases, DeepEquals, map[string]map[string]string{
"other-snap": {
"alias1": "enabled",
},
})
c.Check(last.Log(), HasLen, 1)
c.Check(last.Log()[0], Matches, `.* ERROR cannot enable alias "alias1" for "alias-snap", already enabled for "other-snap"`)
}
func (s *snapmgrTestSuite) TestAliasMatrixTotalUndoRunThrough(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "alias-snap", &snapstate.SnapState{
Sequence: []*snap.SideInfo{
{RealName: "alias-snap", Revision: snap.R(11)},
},
Current: snap.R(11),
Active: true,
})
// alias1 is a non auto-alias
// alias5 is an auto-alias
// alias1lost is a non auto-alias and doesn't have an entry in the snap anymore
// alias5lost is an auto-alias and doesn't have an entry in the snap any
snapstate.AutoAliases = func(st *state.State, info *snap.Info) ([]string, error) {
c.Check(info.Name(), Equals, "alias-snap")
return []string{"alias5", "alias5lost"}, nil
}
cmds := map[string]string{
"alias1": "cmd1",
"alias5": "cmd5",
}
defer s.snapmgr.Stop()
for _, scenario := range statusesMatrix {
scenAlias := scenario.alias
if scenario.beforeStatus != "" {
s.state.Set("aliases", map[string]map[string]string{
"alias-snap": {
scenAlias: scenario.beforeStatus,
},
})
} else {
s.state.Set("aliases", nil)
}
chg := s.state.NewChange("scenario", "...")
var err error
var ts *state.TaskSet
targets := []string{scenAlias}
switch scenario.action {
case "alias":
ts, err = snapstate.Alias(s.state, "alias-snap", targets)
case "unalias":
ts, err = snapstate.Unalias(s.state, "alias-snap", targets)
case "reset":
ts, err = snapstate.ResetAliases(s.state, "alias-snap", targets)
}
c.Assert(err, IsNil)
chg.AddAll(ts)
tasks := ts.Tasks()
last := tasks[len(tasks)-1]
terr := s.state.NewTask("error-trigger", "provoking total undo")
terr.WaitFor(last)
chg.AddTask(terr)
s.state.Unlock()
for i := 0; i < 3; i++ {
s.snapmgr.Ensure()
s.snapmgr.Wait()
}
s.state.Lock()
c.Assert(chg.Status(), Equals, state.ErrorStatus, Commentf("%#v: %v", scenario, chg.Err()))
var aliases []*backend.Alias
var rmAliases []*backend.Alias
beAlias := &backend.Alias{scenAlias, fmt.Sprintf("alias-snap.%s", cmds[scenAlias])}
switch scenario.mutation {
case "-":
case "add":
aliases = []*backend.Alias{beAlias}
case "rm":
rmAliases = []*backend.Alias{beAlias}
}
comm := Commentf("%#v", scenario)
expected := fakeOps{
{
op: "update-aliases",
aliases: aliases,
rmAliases: rmAliases,
},
{
op: "matching-aliases",
aliases: aliases,
},
{
op: "missing-aliases",
aliases: rmAliases,
},
{
op: "update-aliases",
aliases: rmAliases,
rmAliases: aliases,
},
}
// start with an easier-to-read error if this fails:
c.Assert(s.fakeBackend.ops.Ops(), DeepEquals, expected.Ops(), comm)
c.Assert(s.fakeBackend.ops, DeepEquals, expected, comm)
var allAliases map[string]map[string]string
err = s.state.Get("aliases", &allAliases)
c.Assert(err, IsNil)
if scenario.beforeStatus != "" {
c.Check(allAliases, DeepEquals, map[string]map[string]string{
"alias-snap": {scenAlias: scenario.beforeStatus},
}, comm)
} else {
c.Check(allAliases, HasLen, 0, comm)
}
s.fakeBackend.ops = nil
}
}
func (ms *mgrsSuite) TestHappyUnalias(c *C) {
st := ms.o.State()
st.Lock()
defer st.Unlock()
fooYaml := `name: foo
version: 1.0
apps:
foo:
command: bin/foo
aliases: [foo_]
`
ms.installLocalTestSnap(c, fooYaml)
ts, err := snapstate.Alias(st, "foo", []string{"foo_"})
c.Assert(err, IsNil)
chg := st.NewChange("alias", "...")
chg.AddAll(ts)
st.Unlock()
err = ms.o.Settle()
st.Lock()
c.Assert(err, IsNil)
c.Assert(chg.Err(), IsNil)
c.Assert(chg.Status(), Equals, state.DoneStatus, Commentf("alias change failed with: %v", chg.Err()))
foo_Alias := filepath.Join(dirs.SnapBinariesDir, "foo_")
dest, err := os.Readlink(foo_Alias)
c.Assert(err, IsNil)
c.Check(dest, Equals, "foo")
var allAliases map[string]map[string]string
err = st.Get("aliases", &allAliases)
c.Assert(err, IsNil)
c.Check(allAliases, DeepEquals, map[string]map[string]string{
"foo": {
"foo_": "enabled",
},
})
ts, err = snapstate.Unalias(st, "foo", []string{"foo_"})
c.Assert(err, IsNil)
chg = st.NewChange("unalias", "...")
chg.AddAll(ts)
st.Unlock()
err = ms.o.Settle()
st.Lock()
c.Assert(err, IsNil)
c.Assert(chg.Err(), IsNil)
c.Assert(chg.Status(), Equals, state.DoneStatus, Commentf("unalias change failed with: %v", chg.Err()))
c.Check(osutil.IsSymlink(foo_Alias), Equals, false)
allAliases = nil
err = st.Get("aliases", &allAliases)
c.Assert(err, IsNil)
c.Check(allAliases, DeepEquals, map[string]map[string]string{
"foo": {
"foo_": "disabled",
},
})
}
func (s *snapmgrTestSuite) TestAliasMatrixTotalUndoRunThrough(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "alias-snap", &snapstate.SnapState{
Sequence: []*snap.SideInfo{
{RealName: "alias-snap", Revision: snap.R(11)},
},
Current: snap.R(11),
Active: true,
})
defer s.snapmgr.Stop()
for _, scenario := range statusesMatrix {
if scenario.beforeStatus != "" {
s.state.Set("aliases", map[string]map[string]string{
"alias-snap": {
"alias1": scenario.beforeStatus,
},
})
} else {
s.state.Set("aliases", nil)
}
chg := s.state.NewChange("scenario", "...")
var err error
var ts *state.TaskSet
switch scenario.action {
case "alias":
ts, err = snapstate.Alias(s.state, "alias-snap", []string{"alias1"})
case "unalias":
ts, err = snapstate.Unalias(s.state, "alias-snap", []string{"alias1"})
}
c.Assert(err, IsNil)
chg.AddAll(ts)
tasks := ts.Tasks()
last := tasks[len(tasks)-1]
terr := s.state.NewTask("error-trigger", "provoking total undo")
terr.WaitFor(last)
chg.AddTask(terr)
s.state.Unlock()
for i := 0; i < 3; i++ {
s.snapmgr.Ensure()
s.snapmgr.Wait()
}
s.state.Lock()
c.Assert(chg.Status(), Equals, state.ErrorStatus, Commentf("%#v: %v", scenario, chg.Err()))
var aliases []*backend.Alias
var rmAliases []*backend.Alias
switch scenario.mutation {
case "-":
case "add":
aliases = []*backend.Alias{{"alias1", "alias-snap.cmd1"}}
case "rm":
rmAliases = []*backend.Alias{{"alias1", "alias-snap.cmd1"}}
}
comm := Commentf("%#v", scenario)
expected := fakeOps{
{
op: "update-aliases",
aliases: aliases,
rmAliases: rmAliases,
},
{
op: "matching-aliases",
aliases: aliases,
},
{
op: "missing-aliases",
aliases: rmAliases,
},
{
op: "update-aliases",
aliases: rmAliases,
rmAliases: aliases,
},
}
// start with an easier-to-read error if this fails:
c.Assert(s.fakeBackend.ops.Ops(), DeepEquals, expected.Ops(), comm)
c.Assert(s.fakeBackend.ops, DeepEquals, expected, comm)
var allAliases map[string]map[string]string
err = s.state.Get("aliases", &allAliases)
c.Assert(err, IsNil)
if scenario.beforeStatus != "" {
c.Check(allAliases, DeepEquals, map[string]map[string]string{
"alias-snap": {"alias1": scenario.beforeStatus},
}, comm)
} else {
c.Check(allAliases, HasLen, 0, comm)
}
s.fakeBackend.ops = nil
}
}