forked from snapcore/snapd
/
backendtest.go
228 lines (206 loc) · 4.99 KB
/
backendtest.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016-2017 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package ifacetest
import (
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/interfaces"
"github.com/snapcore/snapd/osutil"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/snap/snaptest"
"github.com/snapcore/snapd/testutil"
"github.com/snapcore/snapd/timings"
)
type BackendSuite struct {
Backend interfaces.SecurityBackend
Repo *interfaces.Repository
Iface *TestInterface
RootDir string
restoreSanitize func()
meas *timings.Span
testutil.BaseTest
}
func (s *BackendSuite) SetUpTest(c *C) {
// Isolate this test to a temporary directory
s.RootDir = c.MkDir()
dirs.SetRootDir(s.RootDir)
restore := osutil.MockMountInfo("")
s.AddCleanup(restore)
// Create a fresh repository for each test
s.Repo = interfaces.NewRepository()
s.Iface = &TestInterface{InterfaceName: "iface"}
err := s.Repo.AddInterface(s.Iface)
c.Assert(err, IsNil)
perf := timings.New(nil)
s.meas = perf.StartSpan("", "")
s.restoreSanitize = snap.MockSanitizePlugsSlots(func(snapInfo *snap.Info) {})
}
func (s *BackendSuite) TearDownTest(c *C) {
dirs.SetRootDir("/")
s.restoreSanitize()
}
// Tests for Setup() and Remove()
const SambaYamlV1 = `
name: samba
version: 1
developer: acme
apps:
smbd:
slots:
slot:
interface: iface
`
const SambaYamlV1WithNmbd = `
name: samba
version: 1
developer: acme
apps:
smbd:
nmbd:
slots:
slot:
interface: iface
`
const SambaYamlV1NoSlot = `
name: samba
version: 1
developer: acme
apps:
smbd:
`
const SambaYamlV1WithNmbdNoSlot = `
name: samba
version: 1
developer: acme
apps:
smbd:
nmbd:
`
const SambaYamlV2 = `
name: samba
version: 2
developer: acme
apps:
smbd:
slots:
slot:
interface: iface
`
const SambaYamlWithHook = `
name: samba
version: 0
apps:
smbd:
nmbd:
hooks:
configure:
plugs: [plug]
slots:
slot:
interface: iface
plugs:
plug:
interface: iface
`
const HookYaml = `
name: foo
version: 1
developer: acme
hooks:
configure:
plugs:
plug:
interface: iface
`
const PlugNoAppsYaml = `
name: foo
version: 1
developer: acme
plugs:
plug:
interface: iface
`
const SlotNoAppsYaml = `
name: foo
version: 1
developer: acme
slots:
slots:
interface: iface
`
const SomeSnapYamlV1 = `
name: some-snap
version: 1
developer: acme
apps:
someapp:
`
// Support code for tests
// InstallSnap "installs" a snap from YAML.
func (s *BackendSuite) InstallSnap(c *C, opts interfaces.ConfinementOptions, instanceName, snapYaml string, revision int) *snap.Info {
snapInfo := snaptest.MockInfo(c, snapYaml, &snap.SideInfo{
Revision: snap.R(revision),
})
if instanceName != "" {
_, instanceKey := snap.SplitInstanceName(instanceName)
snapInfo.InstanceKey = instanceKey
c.Assert(snapInfo.InstanceName(), Equals, instanceName)
}
s.addPlugsSlots(c, snapInfo)
err := s.Backend.Setup(snapInfo, opts, s.Repo, s.meas)
c.Assert(err, IsNil)
return snapInfo
}
// UpdateSnap "updates" an existing snap from YAML.
func (s *BackendSuite) UpdateSnap(c *C, oldSnapInfo *snap.Info, opts interfaces.ConfinementOptions, snapYaml string, revision int) *snap.Info {
newSnapInfo := snaptest.MockInfo(c, snapYaml, &snap.SideInfo{
Revision: snap.R(revision),
})
c.Assert(newSnapInfo.InstanceName(), Equals, oldSnapInfo.InstanceName())
s.removePlugsSlots(c, oldSnapInfo)
s.addPlugsSlots(c, newSnapInfo)
err := s.Backend.Setup(newSnapInfo, opts, s.Repo, s.meas)
c.Assert(err, IsNil)
return newSnapInfo
}
// RemoveSnap "removes" an "installed" snap.
func (s *BackendSuite) RemoveSnap(c *C, snapInfo *snap.Info) {
err := s.Backend.Remove(snapInfo.InstanceName())
c.Assert(err, IsNil)
s.removePlugsSlots(c, snapInfo)
}
func (s *BackendSuite) addPlugsSlots(c *C, snapInfo *snap.Info) {
for _, plugInfo := range snapInfo.Plugs {
err := s.Repo.AddPlug(plugInfo)
c.Assert(err, IsNil)
}
for _, slotInfo := range snapInfo.Slots {
err := s.Repo.AddSlot(slotInfo)
c.Assert(err, IsNil)
}
}
func (s *BackendSuite) removePlugsSlots(c *C, snapInfo *snap.Info) {
for _, plug := range s.Repo.Plugs(snapInfo.InstanceName()) {
err := s.Repo.RemovePlug(plug.Snap.InstanceName(), plug.Name)
c.Assert(err, IsNil)
}
for _, slot := range s.Repo.Slots(snapInfo.InstanceName()) {
err := s.Repo.RemoveSlot(slot.Snap.InstanceName(), slot.Name)
c.Assert(err, IsNil)
}
}