func TestService_Verification(t *testing.T) {
local := onet.NewLocalTest()
defer local.CloseAll()
sbLength := 4
_, el, genService := local.MakeHELS(sbLength, skipchainSID)
service := genService.(*Service)
elRoot := onet.NewRoster(el.List[0:3])
sbRoot, err := makeGenesisRoster(service, elRoot)
log.ErrFatal(err)
log.Lvl1("Creating non-conforming skipBlock")
sb := NewSkipBlock()
sb.Roster = el
sb.MaximumHeight = 1
sb.BaseHeight = 1
sb.ParentBlockID = sbRoot.Hash
sb.VerifierID = VerifyShard
_, err = service.ProposeSkipBlock(&ProposeSkipBlock{nil, sb})
require.NotNil(t, err, "Shouldn't accept a non-confoirming skipblock")
log.Lvl1("Creating skipblock with same Roster as root")
sbInter, err := makeGenesisRosterArgs(service, elRoot, sbRoot.Hash, VerifyShard, 1, 1)
log.ErrFatal(err)
log.Lvl1("Creating skipblock with sub-Roster from root")
elSub := onet.NewRoster(el.List[0:2])
sbInter, err = makeGenesisRosterArgs(service, elSub, sbRoot.Hash, VerifyShard, 1, 1)
log.ErrFatal(err)
scsb := &SetChildrenSkipBlock{sbRoot.Hash, sbInter.Hash}
service.SetChildrenSkipBlock(scsb)
}
// Servers contacts all servers in the entity-list and then makes checks
// on each pair. If server-descriptions are available, it will print them
// along with the IP-address of the server.
// In case a server doesn't reply in time or there is an error in the
// signature, an error is returned.
func Servers(g *config.Group) error {
success := true
// First check all servers individually
for _, e := range g.Roster.List {
desc := []string{"none", "none"}
if d := g.GetDescription(e); d != "" {
desc = []string{d, d}
}
el := onet.NewRoster([]*network.ServerIdentity{e})
success = checkList(el, desc) == nil && success
}
if len(g.Roster.List) > 1 {
// Then check pairs of servers
for i, first := range g.Roster.List {
for _, second := range g.Roster.List[i+1:] {
log.Lvl3("Testing connection between", first, second)
desc := []string{"none", "none"}
if d1 := g.GetDescription(first); d1 != "" {
desc = []string{d1, g.GetDescription(second)}
}
es := []*network.ServerIdentity{first, second}
success = checkList(onet.NewRoster(es), desc) == nil && success
es[0], es[1] = es[1], es[0]
desc[0], desc[1] = desc[1], desc[0]
success = checkList(onet.NewRoster(es), desc) == nil && success
}
}
}
if !success {
return errors.New("At least one of the tests failed")
}
return nil
}
func TestClient_ProposeRoster(t *testing.T) {
t.Skip("See https://github.com/dedis/cothority/issues/733")
nbrHosts := 5
l := onet.NewTCPTest()
_, el, _ := l.GenTree(nbrHosts, true)
defer l.CloseAll()
c := NewTestClient(l)
log.Lvl1("Creating root and control chain")
_, inter, cerr := c.CreateRootControl(el, el, 1, 1, 1, VerifyNone)
log.ErrFatal(cerr)
el2 := onet.NewRoster(el.List[:nbrHosts-1])
log.Lvl1("Proposing roster", el2)
var sb1 *ProposedSkipBlockReply
sb1, cerr = c.ProposeRoster(inter, el2)
log.ErrFatal(cerr)
log.Lvl1("Proposing same roster again")
_, cerr = c.ProposeRoster(inter, el2)
if cerr == nil {
t.Fatal("Appending two Blocks to the same last block should fail")
}
log.Lvl1("Proposing following roster")
sb2, cerr := c.ProposeRoster(sb1.Latest, el2)
log.ErrFatal(cerr)
if !sb2.Previous.Equal(sb1.Latest) {
t.Fatal("New previous should be previous latest")
}
if !bytes.Equal(sb2.Previous.ForwardLink[0].Hash,
sb2.Latest.Hash) {
t.Fatal("second should point to third SkipBlock")
}
updates, cerr := c.GetUpdateChain(inter, inter.Hash)
if len(updates.Update) != 3 {
t.Fatal("Should now have three Blocks to go from Genesis to current, but have", len(updates.Update), inter, sb2)
}
if !updates.Update[2].Equal(sb2.Latest) {
t.Fatal("Last block in update-chain should be last block added")
}
c.Close()
}
func TestService_SignBlock(t *testing.T) {
// Testing whether we sign correctly the SkipBlocks
local := onet.NewLocalTest()
defer local.CloseAll()
_, el, genService := local.MakeHELS(3, skipchainSID)
service := genService.(*Service)
sbRoot, err := makeGenesisRosterArgs(service, el, nil, VerifyNone, 1, 1)
log.ErrFatal(err)
el2 := onet.NewRoster(el.List[0:2])
sb := NewSkipBlock()
sb.Roster = el2
psbr, err := service.ProposeSkipBlock(&ProposeSkipBlock{sbRoot.Hash, sb})
log.ErrFatal(err)
reply := psbr.(*ProposedSkipBlockReply)
sbRoot = reply.Previous
sbSecond := reply.Latest
log.Lvl1("Verifying signatures")
log.ErrFatal(sbRoot.VerifySignatures())
log.ErrFatal(sbSecond.VerifySignatures())
}