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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 (
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/bootloader/assets"
"github.com/snapcore/snapd/testutil"
)
type assetsTestSuite struct {
testutil.BaseTest
}
var _ = Suite(&assetsTestSuite{})
func (s *assetsTestSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
s.AddCleanup(assets.MockCleanState())
}
func (s *assetsTestSuite) TestRegisterInternalSimple(c *C) {
assets.RegisterInternal("foo", []byte("bar"))
data := assets.Internal("foo")
c.Check(data, DeepEquals, []byte("bar"))
complexData := `this is "some
complex binary " data
`
assets.RegisterInternal("complex-data", []byte(complexData))
complex := assets.Internal("complex-data")
c.Check(complex, DeepEquals, []byte(complexData))
nodata := assets.Internal("no data")
c.Check(nodata, IsNil)
}
func (s *assetsTestSuite) TestRegisterDoublePanics(c *C) {
assets.RegisterInternal("foo", []byte("foo"))
// panics with the same key, no matter the data used
c.Assert(func() { assets.RegisterInternal("foo", []byte("bar")) },
PanicMatches, `asset "foo" is already registered`)
c.Assert(func() { assets.RegisterInternal("foo", []byte("foo")) },
PanicMatches, `asset "foo" is already registered`)
}
func (s *assetsTestSuite) TestRegisterSnippetPanics(c *C) {
assets.RegisterSnippetForEditions("foo", []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("foo")},
})
// panics with the same key
c.Assert(func() {
assets.RegisterSnippetForEditions("foo", []assets.ForEditions{
{FirstEdition: 2, Snippet: []byte("bar")},
})
}, PanicMatches, `edition snippets "foo" are already registered`)
// panics when snippets aren't sorted
c.Assert(func() {
assets.RegisterSnippetForEditions("unsorted", []assets.ForEditions{
{FirstEdition: 2, Snippet: []byte("two")},
{FirstEdition: 1, Snippet: []byte("one")},
})
}, PanicMatches, `cannot validate snippets "unsorted": snippets must be sorted in ascending edition number order`)
// panics when edition is repeated
c.Assert(func() {
assets.RegisterSnippetForEditions("doubled edition", []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("one")},
{FirstEdition: 2, Snippet: []byte("two")},
{FirstEdition: 3, Snippet: []byte("three")},
{FirstEdition: 3, Snippet: []byte("more tree")},
{FirstEdition: 4, Snippet: []byte("four")},
})
}, PanicMatches, `cannot validate snippets "doubled edition": first edition 3 repeated`)
// mix unsorted with duplicate edition
c.Assert(func() {
assets.RegisterSnippetForEditions("unsorted and doubled edition", []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("one")},
{FirstEdition: 2, Snippet: []byte("two")},
{FirstEdition: 1, Snippet: []byte("one again")},
{FirstEdition: 3, Snippet: []byte("more tree")},
{FirstEdition: 4, Snippet: []byte("four")},
})
}, PanicMatches, `cannot validate snippets "unsorted and doubled edition": snippets must be sorted in ascending edition number order`)
}
func (s *assetsTestSuite) TestEditionSnippets(c *C) {
assets.RegisterSnippetForEditions("foo", []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("one")},
{FirstEdition: 2, Snippet: []byte("two")},
{FirstEdition: 3, Snippet: []byte("three")},
{FirstEdition: 4, Snippet: []byte("four")},
{FirstEdition: 10, Snippet: []byte("ten")},
{FirstEdition: 20, Snippet: []byte("twenty")},
})
assets.RegisterSnippetForEditions("bar", []assets.ForEditions{
{FirstEdition: 1, Snippet: []byte("bar one")},
{FirstEdition: 3, Snippet: []byte("bar three")},
// same as 3
{FirstEdition: 5, Snippet: []byte("bar three")},
})
assets.RegisterSnippetForEditions("just-one", []assets.ForEditions{
{FirstEdition: 2, Snippet: []byte("just one")},
})
for _, tc := range []struct {
asset string
edition uint
exp []byte
}{
{"foo", 1, []byte("one")},
{"foo", 4, []byte("four")},
{"foo", 10, []byte("ten")},
// still using snipped from edition 4
{"foo", 9, []byte("four")},
// still using snipped from edition 10
{"foo", 11, []byte("ten")},
{"foo", 30, []byte("twenty")},
// different asset
{"bar", 1, []byte("bar one")},
{"bar", 2, []byte("bar one")},
{"bar", 3, []byte("bar three")},
{"bar", 4, []byte("bar three")},
{"bar", 5, []byte("bar three")},
{"bar", 6, []byte("bar three")},
// nothing registered for edition 0
{"bar", 0, nil},
// a single snippet under this key
{"just-one", 2, []byte("just one")},
{"just-one", 1, nil},
// asset not registered
{"no asset", 1, nil},
{"no asset", 100, nil},
} {
c.Logf("%q edition %v", tc.asset, tc.edition)
snippet := assets.SnippetForEdition(tc.asset, tc.edition)
c.Check(snippet, DeepEquals, tc.exp)
}
}
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