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