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29c9752d66
Replace ioutil.WriteFile with os.WriteFile since the former has been deprecated since go1.16 and simply calls the latter. Signed-off-by: Miguel Pires <miguel.pires@canonical.com>
123 lines
3.4 KiB
Go
123 lines
3.4 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2020 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package dbusutil_test
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import (
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"fmt"
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"net"
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"os"
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"path/filepath"
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"testing"
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. "gopkg.in/check.v1"
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"github.com/snapcore/snapd/dbusutil"
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"github.com/snapcore/snapd/dbusutil/dbustest"
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"github.com/snapcore/snapd/dirs"
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"github.com/snapcore/snapd/testutil"
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)
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func Test(t *testing.T) { TestingT(t) }
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type dbusutilSuite struct {
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testutil.BaseTest
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}
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var _ = Suite(&dbusutilSuite{})
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const envVar = "DBUS_SESSION_BUS_ADDRESS"
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func (s *dbusutilSuite) SetUpTest(c *C) {
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s.BaseTest.SetUpTest(c)
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// Pretend we have an empty file system. This specifically makes
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// /run/user/*/ empty as well.
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dirs.SetRootDir(c.MkDir())
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s.AddCleanup(func() { dirs.SetRootDir("") })
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// Pretend that we don't have the environment variable with session bus
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// address.
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if value := os.Getenv(envVar); value != "" {
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os.Unsetenv(envVar)
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s.AddCleanup(func() { os.Setenv(envVar, value) })
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}
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}
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func (*dbusutilSuite) TestIsSessionBusLikelyPresentNothing(c *C) {
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c.Assert(dbusutil.IsSessionBusLikelyPresent(), Equals, false)
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}
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func (*dbusutilSuite) TestIsSessionBusLikelyPresentEnvVar(c *C) {
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os.Setenv(envVar, "address")
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c.Assert(dbusutil.IsSessionBusLikelyPresent(), Equals, true)
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}
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func (*dbusutilSuite) TestIsSessionBusLikelyPresentAddrFile(c *C) {
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f := fmt.Sprintf("%s/%d/dbus-session", dirs.XdgRuntimeDirBase, os.Getuid())
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c.Assert(os.MkdirAll(filepath.Dir(f), 0755), IsNil)
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c.Assert(os.WriteFile(f, []byte("address"), 0644), IsNil)
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c.Assert(dbusutil.IsSessionBusLikelyPresent(), Equals, true)
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}
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func (*dbusutilSuite) TestIsSessionBusLikelyPresentSocket(c *C) {
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f := fmt.Sprintf("%s/%d/bus", dirs.XdgRuntimeDirBase, os.Getuid())
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c.Assert(os.MkdirAll(filepath.Dir(f), 0755), IsNil)
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l, err := net.Listen("unix", f)
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c.Assert(err, IsNil)
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defer l.Close()
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c.Assert(dbusutil.IsSessionBusLikelyPresent(), Equals, true)
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}
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func (*dbusutilSuite) TestSessionBusWithoutBus(c *C) {
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_, err := dbusutil.SessionBus()
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c.Assert(err, ErrorMatches, "cannot find session bus")
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}
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func (*dbusutilSuite) TestMockOnlySessionBusAvailable(c *C) {
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stub, err := dbustest.StubConnection()
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c.Assert(err, IsNil)
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defer stub.Close()
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restore := dbusutil.MockOnlySessionBusAvailable(stub)
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defer restore()
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conn, err := dbusutil.SessionBus()
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c.Assert(err, IsNil)
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c.Check(conn, Equals, stub)
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c.Check(func() { dbusutil.SystemBus() }, PanicMatches, "DBus system bus should not have been used")
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}
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func (*dbusutilSuite) TestMockOnlySystemBusAvailable(c *C) {
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stub, err := dbustest.StubConnection()
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c.Assert(err, IsNil)
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defer stub.Close()
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restore := dbusutil.MockOnlySystemBusAvailable(stub)
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defer restore()
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c.Check(func() { dbusutil.SessionBus() }, PanicMatches, "DBus session bus should not have been used")
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conn, err := dbusutil.SystemBus()
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c.Assert(err, IsNil)
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c.Check(conn, Equals, stub)
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}
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