github.com/kubiko/snapd@v0.0.0-20201013125620-d4f3094d9ddf/interfaces/builtin/gpio_control_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2019 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/interfaces"
    26  	"github.com/snapcore/snapd/interfaces/apparmor"
    27  	"github.com/snapcore/snapd/interfaces/builtin"
    28  	"github.com/snapcore/snapd/snap"
    29  	"github.com/snapcore/snapd/testutil"
    30  )
    31  
    32  type GpioControlInterfaceSuite struct {
    33  	iface    interfaces.Interface
    34  	slotInfo *snap.SlotInfo
    35  	slot     *interfaces.ConnectedSlot
    36  	plugInfo *snap.PlugInfo
    37  	plug     *interfaces.ConnectedPlug
    38  }
    39  
    40  var _ = Suite(&GpioControlInterfaceSuite{
    41  	iface: builtin.MustInterface("gpio-control"),
    42  })
    43  
    44  const GpioControlConsumerYaml = `name: consumer
    45  version: 0
    46  apps:
    47   app:
    48     plugs: [gpio-control]
    49     `
    50  
    51  const GpioControlCoreYaml = `name: core
    52  version: 0
    53  type: os
    54  slots:
    55    gpio-control:
    56  `
    57  
    58  func (s *GpioControlInterfaceSuite) SetUpTest(c *C) {
    59  	s.plug, s.plugInfo = MockConnectedPlug(c, GpioControlConsumerYaml, nil, "gpio-control")
    60  	s.slot, s.slotInfo = MockConnectedSlot(c, GpioControlCoreYaml, nil, "gpio-control")
    61  }
    62  
    63  func (s *GpioControlInterfaceSuite) TestName(c *C) {
    64  	c.Assert(s.iface.Name(), Equals, "gpio-control")
    65  }
    66  
    67  func (s *GpioControlInterfaceSuite) TestSanitizeSlot(c *C) {
    68  	c.Assert(interfaces.BeforePrepareSlot(s.iface, s.slotInfo), IsNil)
    69  }
    70  
    71  func (s *GpioControlInterfaceSuite) TestSanitizePlug(c *C) {
    72  	c.Assert(interfaces.BeforePreparePlug(s.iface, s.plugInfo), IsNil)
    73  }
    74  
    75  func (s *GpioControlInterfaceSuite) TestAppArmorSpec(c *C) {
    76  	spec := &apparmor.Specification{}
    77  	c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slot), IsNil)
    78  	c.Assert(spec.SecurityTags(), DeepEquals, []string{"snap.consumer.app"})
    79  	c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, `/sys/class/gpio/{,un}export rw,`)
    80  	c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, `/sys/class/gpio/gpio[0-9]*/{active_low,direction,value,edge} rw,`)
    81  }
    82  
    83  func (s *GpioControlInterfaceSuite) TestStaticInfo(c *C) {
    84  	si := interfaces.StaticInfoOf(s.iface)
    85  	c.Assert(si.ImplicitOnCore, Equals, true)
    86  	c.Assert(si.ImplicitOnClassic, Equals, true)
    87  	c.Assert(si.Summary, Equals, `allows control of all aspects of GPIO pins`)
    88  	c.Assert(si.BaseDeclarationPlugs, testutil.Contains, "gpio-control")
    89  }
    90  
    91  func (s *GpioControlInterfaceSuite) TestAutoConnect(c *C) {
    92  	c.Assert(s.iface.AutoConnect(s.plugInfo, s.slotInfo), Equals, true)
    93  }
    94  
    95  func (s *GpioControlInterfaceSuite) TestInterfaces(c *C) {
    96  	c.Check(builtin.Interfaces(), testutil.DeepContains, s.iface)
    97  }