github.com/hugh712/snapd@v0.0.0-20200910133618-1a99902bd583/interfaces/builtin/uinput_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2020 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package builtin_test
    21  
    22  import (
    23  	. "gopkg.in/check.v1"
    24  
    25  	"github.com/snapcore/snapd/dirs"
    26  	"github.com/snapcore/snapd/interfaces"
    27  	"github.com/snapcore/snapd/interfaces/apparmor"
    28  	"github.com/snapcore/snapd/interfaces/builtin"
    29  	"github.com/snapcore/snapd/interfaces/udev"
    30  	"github.com/snapcore/snapd/snap"
    31  	"github.com/snapcore/snapd/testutil"
    32  )
    33  
    34  type uinputInterfaceSuite struct {
    35  	iface        interfaces.Interface
    36  	coreSlotInfo *snap.SlotInfo
    37  	coreSlot     *interfaces.ConnectedSlot
    38  	plugInfo     *snap.PlugInfo
    39  	plug         *interfaces.ConnectedPlug
    40  }
    41  
    42  var _ = Suite(&uinputInterfaceSuite{
    43  	iface: builtin.MustInterface("uinput"),
    44  })
    45  
    46  const uinputConsumerYaml = `name: consumer
    47  version: 0
    48  apps:
    49   app:
    50    plugs: [uinput]
    51  `
    52  
    53  const uinputCoreYaml = `name: core
    54  version: 0
    55  type: os
    56  slots:
    57    uinput:
    58  `
    59  
    60  func (s *uinputInterfaceSuite) SetUpTest(c *C) {
    61  	s.plug, s.plugInfo = MockConnectedPlug(c, uinputConsumerYaml, nil, "uinput")
    62  	s.coreSlot, s.coreSlotInfo = MockConnectedSlot(c, uinputCoreYaml, nil, "uinput")
    63  }
    64  
    65  func (s *uinputInterfaceSuite) TearDownTest(c *C) {
    66  	dirs.SetRootDir("/")
    67  }
    68  
    69  func (s *uinputInterfaceSuite) TestName(c *C) {
    70  	c.Assert(s.iface.Name(), Equals, "uinput")
    71  }
    72  
    73  func (s *uinputInterfaceSuite) TestSanitizeSlot(c *C) {
    74  	c.Assert(interfaces.BeforePrepareSlot(s.iface, s.coreSlotInfo), IsNil)
    75  }
    76  
    77  func (s *uinputInterfaceSuite) TestSanitizePlug(c *C) {
    78  	c.Assert(interfaces.BeforePreparePlug(s.iface, s.plugInfo), IsNil)
    79  }
    80  
    81  func (s *uinputInterfaceSuite) TestAppArmorSpec(c *C) {
    82  	spec := &apparmor.Specification{}
    83  	c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.coreSlot), IsNil)
    84  	c.Assert(spec.SecurityTags(), DeepEquals, []string{"snap.consumer.app"})
    85  	c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, "# Description: Allow write access to the uinput device for emulating")
    86  	c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, "/dev/uinput rw,")
    87  }
    88  
    89  func (s *uinputInterfaceSuite) TestUDevSpec(c *C) {
    90  	spec := &udev.Specification{}
    91  	c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.coreSlot), IsNil)
    92  	c.Assert(spec.Snippets(), HasLen, 2)
    93  	c.Assert(spec.Snippets()[0], Equals, `# uinput
    94  KERNEL=="uinput", TAG+="snap_consumer_app"`)
    95  	c.Assert(spec.Snippets(), testutil.Contains, `TAG=="snap_consumer_app", RUN+="/usr/lib/snapd/snap-device-helper $env{ACTION} snap_consumer_app $devpath $major:$minor"`)
    96  }
    97  
    98  func (s *uinputInterfaceSuite) TestStaticInfo(c *C) {
    99  	si := interfaces.StaticInfoOf(s.iface)
   100  	c.Assert(si.ImplicitOnCore, Equals, true)
   101  	c.Assert(si.ImplicitOnClassic, Equals, true)
   102  	c.Assert(si.Summary, Equals, `allows access to the uinput device`)
   103  	c.Assert(si.BaseDeclarationSlots, testutil.Contains, "uinput")
   104  	c.Assert(si.BaseDeclarationSlots, testutil.Contains, "deny-auto-connection: true")
   105  	c.Assert(si.BaseDeclarationPlugs, testutil.Contains, "allow-installation: false")
   106  }
   107  
   108  func (s *uinputInterfaceSuite) TestInterfaces(c *C) {
   109  	c.Check(builtin.Interfaces(), testutil.DeepContains, s.iface)
   110  }