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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2015 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 partition
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"launchpad.net/snappy/helpers"
. "gopkg.in/check.v1"
)
func mockGrubFile(c *C, newPath string, mode os.FileMode) {
err := ioutil.WriteFile(newPath, []byte(""), mode)
c.Assert(err, IsNil)
}
func (s *PartitionTestSuite) makeFakeGrubEnv(c *C) {
// create bootloader
err := os.MkdirAll(bootloaderGrubDir, 0755)
c.Assert(err, IsNil)
// these files just needs to exist
mockGrubFile(c, bootloaderGrubConfigFile, 0644)
mockGrubFile(c, bootloaderGrubEnvFile, 0644)
// do not run commands for real
runCommand = mockRunCommandWithCapture
}
func (s *PartitionTestSuite) TestNewGrubNoGrubReturnsNil(c *C) {
bootloaderGrubConfigFile = "no-such-dir"
partition := New()
g := newGrub(partition)
c.Assert(g, IsNil)
}
func (s *PartitionTestSuite) TestNewGrub(c *C) {
s.makeFakeGrubEnv(c)
partition := New()
g := newGrub(partition)
c.Assert(g, NotNil)
c.Assert(g.Name(), Equals, bootloaderNameGrub)
}
type singleCommand []string
var allCommands = []singleCommand{}
func mockRunCommandWithCapture(args ...string) (err error) {
allCommands = append(allCommands, args)
return nil
}
func (s *PartitionTestSuite) TestToggleRootFS(c *C) {
s.makeFakeGrubEnv(c)
allCommands = []singleCommand{}
partition := New()
g := newGrub(partition)
c.Assert(g, NotNil)
err := g.ToggleRootFS("b")
c.Assert(err, IsNil)
// this is always called
mp := singleCommand{"/bin/mountpoint", mountTarget}
c.Assert(allCommands[0], DeepEquals, mp)
expectedGrubSet := singleCommand{bootloaderGrubEnvCmd, bootloaderGrubEnvFile, "set", "snappy_mode=try"}
c.Assert(allCommands[1], DeepEquals, expectedGrubSet)
// the https://developer.ubuntu.com/en/snappy/porting guide says
// we always use the short names
expectedGrubSet = singleCommand{bootloaderGrubEnvCmd, bootloaderGrubEnvFile, "set", "snappy_ab=b"}
c.Assert(allCommands[2], DeepEquals, expectedGrubSet)
c.Assert(len(allCommands), Equals, 3)
}
func mockGrubEditenvList(cmd ...string) (string, error) {
mockGrubEditenvOutput := fmt.Sprintf("%s=regular", bootloaderBootmodeVar)
return mockGrubEditenvOutput, nil
}
func (s *PartitionTestSuite) TestGetBootVer(c *C) {
s.makeFakeGrubEnv(c)
runCommandWithStdout = mockGrubEditenvList
partition := New()
g := newGrub(partition)
v, err := g.GetBootVar(bootloaderBootmodeVar)
c.Assert(err, IsNil)
c.Assert(v, Equals, "regular")
}
func (s *PartitionTestSuite) TestGetBootloaderWithGrub(c *C) {
s.makeFakeGrubEnv(c)
p := New()
bootloader, err := bootloader(p)
c.Assert(err, IsNil)
c.Assert(bootloader.Name(), Equals, bootloaderNameGrub)
}
func (s *PartitionTestSuite) TestGrubMarkCurrentBootSuccessful(c *C) {
s.makeFakeGrubEnv(c)
allCommands = []singleCommand{}
partition := New()
g := newGrub(partition)
c.Assert(g, NotNil)
err := g.MarkCurrentBootSuccessful("a")
c.Assert(err, IsNil)
// this is always called
mp := singleCommand{"/bin/mountpoint", mountTarget}
c.Assert(allCommands[0], DeepEquals, mp)
expectedGrubSet := singleCommand{bootloaderGrubEnvCmd, bootloaderGrubEnvFile, "set", "snappy_trial_boot=0"}
c.Assert(allCommands[1], DeepEquals, expectedGrubSet)
expectedGrubSet2 := singleCommand{bootloaderGrubEnvCmd, bootloaderGrubEnvFile, "set", "snappy_ab=a"}
c.Assert(allCommands[2], DeepEquals, expectedGrubSet2)
expectedGrubSet3 := singleCommand{bootloaderGrubEnvCmd, bootloaderGrubEnvFile, "set", "snappy_mode=regular"}
c.Assert(allCommands[3], DeepEquals, expectedGrubSet3)
}
func (s *PartitionTestSuite) TestSyncBootFilesWithAssets(c *C) {
err := os.MkdirAll(bootloaderGrubDir, 0755)
c.Assert(err, IsNil)
runCommand = mockRunCommand
b := grub{
bootloaderType{
currentBootPath: c.MkDir(),
otherBootPath: c.MkDir(),
bootloaderDir: c.MkDir(),
},
}
bootfile := filepath.Join(c.MkDir(), "bootfile")
err = ioutil.WriteFile(bootfile, []byte(bootfile), 0644)
c.Assert(err, IsNil)
bootassets := map[string]string{
bootfile: filepath.Base(bootfile),
}
err = b.SyncBootFiles(bootassets)
c.Assert(err, IsNil)
dst := filepath.Join(b.bootloaderDir, bootassets[bootfile])
c.Check(helpers.FileExists(dst), Equals, true)
c.Check(helpers.FilesAreEqual(bootfile, dst), Equals, true)
}
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