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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2020 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 systemd_test
import (
"errors"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/systemd"
"github.com/snapcore/snapd/testutil"
)
type sysctlSuite struct {
testutil.BaseTest
}
var _ = Suite(&sysctlSuite{})
func (s *sysctlSuite) TestSysctl(c *C) {
defer systemd.MockSystemdSysctlPath("systemd-sysctl")()
systemdSysctl := testutil.MockCommand(c, "systemd-sysctl", "")
defer systemdSysctl.Restore()
err := systemd.Sysctl(nil)
c.Assert(err, IsNil)
err = systemd.Sysctl([]string{"kernel.printk", "net"})
c.Assert(err, IsNil)
c.Check(systemdSysctl.Calls(), DeepEquals, [][]string{
{"systemd-sysctl"},
{"systemd-sysctl", "--prefix", "kernel.printk", "--prefix", "net"},
})
}
func (s *sysctlSuite) TestSysctlError(c *C) {
defer systemd.MockSystemdSysctlPath("systemd-sysctl")()
systemdSysctl := testutil.MockCommand(c, "systemd-sysctl", `
echo foo >&2
exit 1
`)
defer systemdSysctl.Restore()
err := systemd.Sysctl(nil)
c.Assert(err, ErrorMatches, `(?m)systemd-sysctl invoked with \[\] failed with exit status 1: foo`)
err = systemd.Sysctl([]string{"net"})
c.Assert(err, ErrorMatches, `(?m)systemd-sysctl invoked with \[--prefix net\] failed with exit status 1: foo`)
}
func (s *sysctlSuite) TestSysctlFailedExec(c *C) {
defer systemd.MockSystemdSysctlPath("/i/bet/this/does/not/exist/systemd-sysctl")()
err := systemd.Sysctl(nil)
c.Assert(err, ErrorMatches, `fork/exec /i/bet/this/does/not/exist/systemd-sysctl: no such file or directory`)
}
func (s *sysctlSuite) TestMockSystemdSysctl(c *C) {
var capturedArgs []string
var sysctlErr error
r := systemd.MockSystemdSysctl(func(args ...string) error {
capturedArgs = args
return sysctlErr
})
defer r()
err := systemd.Sysctl([]string{"kernel.printk", "net"})
c.Assert(err, IsNil)
c.Check(capturedArgs, DeepEquals, []string{"--prefix", "kernel.printk", "--prefix", "net"})
sysctlErr = errors.New("boom")
err = systemd.Sysctl(nil)
c.Check(err, Equals, sysctlErr)
c.Check(capturedArgs, HasLen, 0)
}
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