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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2022 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 kmod_test
import (
"errors"
"os"
"testing"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/osutil/kmod"
"github.com/snapcore/snapd/testutil"
)
func TestRun(t *testing.T) { TestingT(t) }
type kmodSuite struct {
testutil.BaseTest
}
var _ = Suite(&kmodSuite{})
func (s *kmodSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
}
func (s *kmodSuite) TearDownTest(c *C) {
s.BaseTest.TearDownTest(c)
}
func (s *kmodSuite) TestModprobeCommandNotFound(c *C) {
originalPath := os.Getenv("PATH")
defer func() {
os.Setenv("PATH", originalPath)
}()
os.Unsetenv("PATH")
err := kmod.ModprobeCommand("name", "opt1=v1", "opt2=v2")
c.Check(err, ErrorMatches, `exec: "modprobe": executable file not found in \$PATH`)
}
func (s *kmodSuite) TestModprobeCommandFailure(c *C) {
cmd := testutil.MockCommand(c, "modprobe", "exit 1")
defer cmd.Restore()
err := kmod.ModprobeCommand("name", "opt1=v1", "opt2=v2")
c.Check(err, ErrorMatches, `modprobe failed with exit status 1 \(see syslog for details\)`)
c.Check(cmd.Calls(), DeepEquals, [][]string{
{"modprobe", "--syslog", "name", "opt1=v1", "opt2=v2"},
})
}
func (s *kmodSuite) TestModprobeCommandHappy(c *C) {
cmd := testutil.MockCommand(c, "modprobe", "")
defer cmd.Restore()
err := kmod.ModprobeCommand("name", "opt1=v1", "opt2=v2")
c.Check(err, IsNil)
c.Check(cmd.Calls(), DeepEquals, [][]string{
{"modprobe", "--syslog", "name", "opt1=v1", "opt2=v2"},
})
}
func (s *kmodSuite) TestLoadModule(c *C) {
var returnValue error
var receivedArguments []string
restore := kmod.MockModprobeCommand(func(args ...string) error {
receivedArguments = args
return returnValue
})
defer restore()
for _, testData := range []struct {
moduleName string
moduleOptions []string
expectedArgs []string
expectedError error
}{
{"mymodule", nil, []string{"mymodule"}, nil},
{"mymodule", []string{"just one"}, []string{"mymodule", "just one"}, nil},
{"mod1", []string{"opt1=v1", "opt2=v2"}, []string{"mod1", "opt1=v1", "opt2=v2"}, nil},
{"mod2", []string{}, []string{"mod2"}, errors.New("some error")},
} {
returnValue = testData.expectedError
err := kmod.LoadModule(testData.moduleName, testData.moduleOptions)
c.Check(err, Equals, testData.expectedError)
c.Check(receivedArguments, DeepEquals, testData.expectedArgs)
}
}
func (s *kmodSuite) TestUnloadModule(c *C) {
var returnValue error
var receivedArguments []string
restore := kmod.MockModprobeCommand(func(args ...string) error {
receivedArguments = args
return returnValue
})
defer restore()
for _, testData := range []struct {
moduleName string
expectedArgs []string
expectedError error
}{
{"mymodule", []string{"-r", "mymodule"}, nil},
{"mod2", []string{"-r", "mod2"}, errors.New("some error")},
} {
returnValue = testData.expectedError
err := kmod.UnloadModule(testData.moduleName)
c.Check(err, Equals, testData.expectedError)
c.Check(receivedArguments, DeepEquals, testData.expectedArgs)
}
}
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