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149 lines
4.1 KiB
149 lines
4.1 KiB
// nolint: vetshadow
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package lite_test
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import (
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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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"github.com/tendermint/tendermint/lite"
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liteErr "github.com/tendermint/tendermint/lite/errors"
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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() lite.Provider {
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return missingProvider{}
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}
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func (missingProvider) StoreCommit(lite.FullCommit) error { return nil }
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func (missingProvider) GetByHeight(int) (lite.FullCommit, error) {
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return lite.FullCommit{}, liteErr.ErrCommitNotFound()
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}
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func (missingProvider) GetByHash([]byte) (lite.FullCommit, error) {
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return lite.FullCommit{}, liteErr.ErrCommitNotFound()
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}
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func (missingProvider) LatestCommit() (lite.FullCommit, error) {
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return lite.FullCommit{}, liteErr.ErrCommitNotFound()
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}
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func TestMemProvider(t *testing.T) {
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p := lite.NewMemStoreProvider()
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checkProvider(t, p, "test-mem", "empty")
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}
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func TestCacheProvider(t *testing.T) {
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p := lite.NewCacheProvider(
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NewMissingProvider(),
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lite.NewMemStoreProvider(),
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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 lite.Provider, 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 := lite.GenValKeys(5)
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count := 10
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// make a bunch of commits...
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commits := make([]lite.FullCommit, count)
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for i := 0; i < count; i++ {
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// two commits for each validator, to check how we handle dups
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// (10, 0), (10, 1), (10, 1), (10, 2), (10, 2), ...
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vals := keys.ToValidators(10, int64(count/2))
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h := 20 + 10*i
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commits[i] = keys.GenFullCommit(chainID, h, nil, vals, appHash, 0, 5)
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}
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// check provider is empty
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fc, err := p.GetByHeight(20)
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require.NotNil(err)
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assert.True(liteErr.IsCommitNotFoundErr(err))
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fc, err = p.GetByHash(commits[3].ValidatorsHash())
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require.NotNil(err)
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assert.True(liteErr.IsCommitNotFoundErr(err))
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// now add them all to the provider
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for _, s := range commits {
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err = p.StoreCommit(s)
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require.Nil(err)
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// and make sure we can get it back
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s2, err := p.GetByHash(s.ValidatorsHash())
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assert.Nil(err)
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assert.Equal(s, s2)
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// by height as well
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s2, err = p.GetByHeight(s.Height())
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assert.Nil(err)
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assert.Equal(s, s2)
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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.GetByHeight(5000)
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if assert.Nil(err) {
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assert.Equal(commits[count-1].Height(), fc.Height())
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assert.Equal(commits[count-1], fc)
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}
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// and middle ones as well
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fc, err = p.GetByHeight(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.Equal(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 checkGetHeight(t *testing.T, p lite.Provider, ask, expect int) {
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fc, err := p.GetByHeight(ask)
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require.Nil(t, err, "%+v", err)
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if assert.Equal(t, expect, fc.Height()) {
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err = p.StoreCommit(fc)
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require.Nil(t, err, "%+v", err)
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}
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}
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func TestCacheGetsBestHeight(t *testing.T) {
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// assert, require := assert.New(t), require.New(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),
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// and see what gets cached, stored in
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p := lite.NewMemStoreProvider()
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p2 := lite.NewMemStoreProvider()
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cp := lite.NewCacheProvider(p, p2)
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chainID := "cache-best-height"
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appHash := []byte("01234567")
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keys := lite.GenValKeys(5)
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count := 10
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// set a bunch of 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 := 10 * (i + 1)
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fc := keys.GenFullCommit(chainID, h, nil, vals, appHash, 0, 5)
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err := p2.StoreCommit(fc)
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require.NoError(err)
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}
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// let's get a few heights from the cache and set them proper
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checkGetHeight(t, cp, 57, 50)
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checkGetHeight(t, cp, 33, 30)
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// make sure they are set in p as well (but nothing else)
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checkGetHeight(t, p, 44, 30)
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checkGetHeight(t, p, 50, 50)
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checkGetHeight(t, p, 99, 50)
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// now, query the cache for a higher value
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checkGetHeight(t, p2, 99, 90)
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checkGetHeight(t, cp, 99, 90)
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}
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