Revision 4f8769175ed938a031c329de7da80821edbf7880 authored by Ethan Buchman on 19 January 2019, 21:08:57 UTC, committed by GitHub on 19 January 2019, 21:08:57 UTC
* types: dont hash entire ConsensusParams * update encoding spec * update blockchain spec * spec: consensus params hash * changelog
1 parent 40c887b
provider_test.go
package lite
import (
"errors"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
dbm "github.com/tendermint/tendermint/libs/db"
log "github.com/tendermint/tendermint/libs/log"
lerr "github.com/tendermint/tendermint/lite/errors"
"github.com/tendermint/tendermint/types"
)
// missingProvider doesn't store anything, always a miss.
// Designed as a mock for testing.
type missingProvider struct{}
// NewMissingProvider returns a provider which does not store anything and always misses.
func NewMissingProvider() PersistentProvider {
return missingProvider{}
}
func (missingProvider) SaveFullCommit(FullCommit) error { return nil }
func (missingProvider) LatestFullCommit(chainID string, minHeight, maxHeight int64) (FullCommit, error) {
return FullCommit{}, lerr.ErrCommitNotFound()
}
func (missingProvider) ValidatorSet(chainID string, height int64) (*types.ValidatorSet, error) {
return nil, errors.New("missing validator set")
}
func (missingProvider) SetLogger(_ log.Logger) {}
func TestMemProvider(t *testing.T) {
p := NewDBProvider("mem", dbm.NewMemDB())
checkProvider(t, p, "test-mem", "empty")
}
func TestMultiProvider(t *testing.T) {
p := NewMultiProvider(
NewMissingProvider(),
NewDBProvider("mem", dbm.NewMemDB()),
NewMissingProvider(),
)
checkProvider(t, p, "test-cache", "kjfhekfhkewhgit")
}
func checkProvider(t *testing.T, p PersistentProvider, chainID, app string) {
assert, require := assert.New(t), require.New(t)
appHash := []byte(app)
keys := genPrivKeys(5)
count := 10
// Make a bunch of full commits.
fcz := make([]FullCommit, count)
for i := 0; i < count; i++ {
vals := keys.ToValidators(10, int64(count/2))
h := int64(20 + 10*i)
fcz[i] = keys.GenFullCommit(chainID, h, nil, vals, vals, appHash, []byte("params"), []byte("results"), 0, 5)
}
// Check that provider is initially empty.
fc, err := p.LatestFullCommit(chainID, 1, 1<<63-1)
require.NotNil(err)
assert.True(lerr.IsErrCommitNotFound(err))
// Save all full commits to the provider.
for _, fc := range fcz {
err = p.SaveFullCommit(fc)
require.Nil(err)
// Make sure we can get it back.
fc2, err := p.LatestFullCommit(chainID, fc.Height(), fc.Height())
assert.Nil(err)
assert.Equal(fc.SignedHeader, fc2.SignedHeader)
assert.Equal(fc.Validators, fc2.Validators)
assert.Equal(fc.NextValidators, fc2.NextValidators)
}
// Make sure we get the last hash if we overstep.
fc, err = p.LatestFullCommit(chainID, 1, 5000)
if assert.Nil(err) {
assert.Equal(fcz[count-1].Height(), fc.Height())
assert.Equal(fcz[count-1], fc)
}
// ... and middle ones as well.
fc, err = p.LatestFullCommit(chainID, 1, 47)
if assert.Nil(err) {
// we only step by 10, so 40 must be the one below this
assert.EqualValues(40, fc.Height())
}
}
// This will make a get height, and if it is good, set the data as well.
func checkLatestFullCommit(t *testing.T, p PersistentProvider, chainID string, ask, expect int64) {
fc, err := p.LatestFullCommit(chainID, 1, ask)
require.Nil(t, err)
if assert.Equal(t, expect, fc.Height()) {
err = p.SaveFullCommit(fc)
require.Nil(t, err)
}
}
func TestMultiLatestFullCommit(t *testing.T) {
require := require.New(t)
// We will write data to the second level of the cache (p2), and see what
// gets cached/stored in.
p := NewDBProvider("mem1", dbm.NewMemDB())
p2 := NewDBProvider("mem2", dbm.NewMemDB())
cp := NewMultiProvider(p, p2)
chainID := "cache-best-height"
appHash := []byte("01234567")
keys := genPrivKeys(5)
count := 10
// Set a bunch of full commits.
for i := 0; i < count; i++ {
vals := keys.ToValidators(10, int64(count/2))
h := int64(10 * (i + 1))
fc := keys.GenFullCommit(chainID, h, nil, vals, vals, appHash, []byte("params"), []byte("results"), 0, 5)
err := p2.SaveFullCommit(fc)
require.NoError(err)
}
// Get a few heights from the cache and set them proper.
checkLatestFullCommit(t, cp, chainID, 57, 50)
checkLatestFullCommit(t, cp, chainID, 33, 30)
// make sure they are set in p as well (but nothing else)
checkLatestFullCommit(t, p, chainID, 44, 30)
checkLatestFullCommit(t, p, chainID, 50, 50)
checkLatestFullCommit(t, p, chainID, 99, 50)
// now, query the cache for a higher value
checkLatestFullCommit(t, p2, chainID, 99, 90)
checkLatestFullCommit(t, cp, chainID, 99, 90)
}
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