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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 assets_test
import (
"bytes"
"fmt"
"os"
"testing"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/arch/archtest"
"github.com/snapcore/snapd/bootloader/assets"
"github.com/snapcore/snapd/testutil"
)
// Hook up check.v1 into the "go test" runner
func Test(t *testing.T) { TestingT(t) }
type grubAssetsTestSuite struct {
testutil.BaseTest
}
var _ = Suite(&grubAssetsTestSuite{})
func (s *grubAssetsTestSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
// By default assume amd64 in the tests: there are specialized
// tests for other arches
s.AddCleanup(archtest.MockArchitecture("amd64"))
snippets := []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("console=ttyS0 console=tty1 panic=-1")},
{FirstEdition: 3, Snippet: []byte("console=ttyS0,115200n8 console=tty1 panic=-1")},
}
s.AddCleanup(assets.MockSnippetsForEdition("grub.cfg:static-cmdline", snippets))
s.AddCleanup(assets.MockSnippetsForEdition("grub-recovery.cfg:static-cmdline", snippets))
}
func (s *grubAssetsTestSuite) testGrubConfigContains(c *C, name string, edition int, keys ...string) {
a := assets.Internal(name)
c.Assert(a, NotNil)
as := string(a)
for _, canary := range keys {
c.Assert(as, testutil.Contains, canary)
}
idx := bytes.IndexRune(a, '\n')
c.Assert(idx, Not(Equals), -1)
prefix := fmt.Sprintf("# Snapd-Boot-Config-Edition: %d", edition)
c.Assert(string(a[:idx]), Equals, prefix)
}
func (s *grubAssetsTestSuite) TestGrubConf(c *C) {
s.testGrubConfigContains(c, "grub.cfg", 3,
"snapd_recovery_mode",
"set snapd_static_cmdline_args='console=ttyS0,115200n8 console=tty1 panic=-1'",
)
}
func (s *grubAssetsTestSuite) TestGrubRecoveryConf(c *C) {
s.testGrubConfigContains(c, "grub-recovery.cfg", 2,
"snapd_recovery_mode",
"snapd_recovery_system",
"set snapd_static_cmdline_args='console=ttyS0 console=tty1 panic=-1'",
)
}
func (s *grubAssetsTestSuite) TestGrubCmdlineSnippetEditions(c *C) {
for _, tc := range []struct {
asset string
edition uint
snip []byte
}{
{"grub.cfg:static-cmdline", 1, []byte("console=ttyS0 console=tty1 panic=-1")},
{"grub-recovery.cfg:static-cmdline", 1, []byte("console=ttyS0 console=tty1 panic=-1")},
} {
snip := assets.SnippetForEdition(tc.asset, tc.edition)
c.Assert(snip, NotNil)
c.Check(snip, DeepEquals, tc.snip)
}
}
func (s *grubAssetsTestSuite) TestGrubCmdlineSnippetEditionsForArm64(c *C) {
r := archtest.MockArchitecture("arm64")
defer r()
// Make sure to revert later to the prev arch snippets
r = assets.MockCleanState()
defer r()
assets.RegisterGrubSnippets()
for _, tc := range []struct {
asset string
edition uint
snip []byte
}{
{"grub.cfg:static-cmdline", 1, []byte("panic=-1")},
{"grub-recovery.cfg:static-cmdline", 1, []byte("panic=-1")},
} {
snip := assets.SnippetForEdition(tc.asset, tc.edition)
c.Assert(snip, NotNil)
c.Check(snip, DeepEquals, tc.snip)
}
}
func (s *grubAssetsTestSuite) TestGrubCmdlineSnippetCrossCheck(c *C) {
for _, tc := range []struct {
asset string
snippet string
edition uint
content []byte
pattern string
}{
{
asset: "grub.cfg", snippet: "grub.cfg:static-cmdline", edition: 3,
content: []byte("console=ttyS0,115200n8 console=tty1 panic=-1"),
pattern: "set snapd_static_cmdline_args='%s'\n",
},
{
asset: "grub-recovery.cfg", snippet: "grub-recovery.cfg:static-cmdline", edition: 2,
content: []byte("console=ttyS0 console=tty1 panic=-1"),
pattern: "set snapd_static_cmdline_args='%s'\n",
},
} {
grubCfg := assets.Internal(tc.asset)
c.Assert(grubCfg, NotNil)
prefix := fmt.Sprintf("# Snapd-Boot-Config-Edition: %d", tc.edition)
c.Assert(bytes.HasPrefix(grubCfg, []byte(prefix)), Equals, true)
// get a matching snippet
snip := assets.SnippetForEdition(tc.snippet, tc.edition)
c.Assert(snip, NotNil)
c.Assert(snip, DeepEquals, tc.content, Commentf("%s: '%s' != '%s'", tc.asset, snip, tc.content))
c.Assert(string(grubCfg), testutil.Contains, fmt.Sprintf(tc.pattern, string(snip)))
}
}
func (s *grubAssetsTestSuite) TestGrubAssetsWereRegenerated(c *C) {
for _, tc := range []struct {
asset string
file string
}{
{"grub.cfg", "data/grub.cfg"},
{"grub-recovery.cfg", "data/grub-recovery.cfg"},
} {
assetData := assets.Internal(tc.asset)
c.Assert(assetData, NotNil)
data, err := os.ReadFile(tc.file)
c.Assert(err, IsNil)
c.Check(assetData, DeepEquals, data, Commentf("asset %q has not been updated", tc.asset))
}
}
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