You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
4.0 KiB
130 lines
4.0 KiB
package lite_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/tendermint/tendermint/types"
|
|
|
|
"github.com/tendermint/tendermint/lite"
|
|
"github.com/tendermint/tendermint/lite/errors"
|
|
)
|
|
|
|
// TestDynamicCert just makes sure it still works like StaticCert
|
|
func TestDynamicCert(t *testing.T) {
|
|
// assert, require := assert.New(t), require.New(t)
|
|
assert := assert.New(t)
|
|
// require := require.New(t)
|
|
|
|
keys := lite.GenValKeys(4)
|
|
// 20, 30, 40, 50 - the first 3 don't have 2/3, the last 3 do!
|
|
vals := keys.ToValidators(20, 10)
|
|
// and a certifier based on our known set
|
|
chainID := "test-dyno"
|
|
cert := lite.NewDynamic(chainID, vals, 0)
|
|
|
|
cases := []struct {
|
|
keys lite.ValKeys
|
|
vals *types.ValidatorSet
|
|
height int64
|
|
first, last int // who actually signs
|
|
proper bool // true -> expect no error
|
|
changed bool // true -> expect validator change error
|
|
}{
|
|
// perfect, signed by everyone
|
|
{keys, vals, 1, 0, len(keys), true, false},
|
|
// skip little guy is okay
|
|
{keys, vals, 2, 1, len(keys), true, false},
|
|
// but not the big guy
|
|
{keys, vals, 3, 0, len(keys) - 1, false, false},
|
|
// even changing the power a little bit breaks the static validator
|
|
// the sigs are enough, but the validator hash is unknown
|
|
{keys, keys.ToValidators(20, 11), 4, 0, len(keys), false, true},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
check := tc.keys.GenCommit(chainID, tc.height, nil, tc.vals,
|
|
[]byte("bar"), tc.first, tc.last)
|
|
err := cert.Certify(check)
|
|
if tc.proper {
|
|
assert.Nil(err, "%+v", err)
|
|
assert.Equal(cert.LastHeight(), tc.height)
|
|
} else {
|
|
assert.NotNil(err)
|
|
if tc.changed {
|
|
assert.True(errors.IsValidatorsChangedErr(err), "%+v", err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestDynamicUpdate makes sure we update safely and sanely
|
|
func TestDynamicUpdate(t *testing.T) {
|
|
assert, require := assert.New(t), require.New(t)
|
|
|
|
chainID := "test-dyno-up"
|
|
keys := lite.GenValKeys(5)
|
|
vals := keys.ToValidators(20, 0)
|
|
cert := lite.NewDynamic(chainID, vals, 40)
|
|
|
|
// one valid block to give us a sense of time
|
|
h := int64(100)
|
|
good := keys.GenCommit(chainID, h, nil, vals, []byte("foo"), 0, len(keys))
|
|
err := cert.Certify(good)
|
|
require.Nil(err, "%+v", err)
|
|
|
|
// some new sets to try later
|
|
keys2 := keys.Extend(2)
|
|
keys3 := keys2.Extend(4)
|
|
|
|
// we try to update with some blocks
|
|
cases := []struct {
|
|
keys lite.ValKeys
|
|
vals *types.ValidatorSet
|
|
height int64
|
|
first, last int // who actually signs
|
|
proper bool // true -> expect no error
|
|
changed bool // true -> expect too much change error
|
|
}{
|
|
// same validator set, well signed, of course it is okay
|
|
{keys, vals, h + 10, 0, len(keys), true, false},
|
|
// same validator set, poorly signed, fails
|
|
{keys, vals, h + 20, 2, len(keys), false, false},
|
|
|
|
// shift the power a little, works if properly signed
|
|
{keys, keys.ToValidators(10, 0), h + 30, 1, len(keys), true, false},
|
|
// but not on a poor signature
|
|
{keys, keys.ToValidators(10, 0), h + 40, 2, len(keys), false, false},
|
|
// and not if it was in the past
|
|
{keys, keys.ToValidators(10, 0), h + 25, 0, len(keys), false, false},
|
|
|
|
// let's try to adjust to a whole new validator set (we have 5/7 of the votes)
|
|
{keys2, keys2.ToValidators(10, 0), h + 33, 0, len(keys2), true, false},
|
|
|
|
// properly signed but too much change, not allowed (only 7/11 validators known)
|
|
{keys3, keys3.ToValidators(10, 0), h + 50, 0, len(keys3), false, true},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
fc := tc.keys.GenFullCommit(chainID, tc.height, nil, tc.vals,
|
|
[]byte("bar"), tc.first, tc.last)
|
|
err := cert.Update(fc)
|
|
if tc.proper {
|
|
assert.Nil(err, "%d: %+v", tc.height, err)
|
|
// we update last seen height
|
|
assert.Equal(cert.LastHeight(), tc.height)
|
|
// and we update the proper validators
|
|
assert.EqualValues(fc.Header.ValidatorsHash, cert.Hash())
|
|
} else {
|
|
assert.NotNil(err, "%d", tc.height)
|
|
// we don't update the height
|
|
assert.NotEqual(cert.LastHeight(), tc.height)
|
|
if tc.changed {
|
|
assert.True(errors.IsTooMuchChangeErr(err),
|
|
"%d: %+v", tc.height, err)
|
|
}
|
|
}
|
|
}
|
|
}
|