package files_test import ( "bytes" "errors" "io/ioutil" "os" "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/tendermint/tendermint/lite" liteErr "github.com/tendermint/tendermint/lite/errors" "github.com/tendermint/tendermint/lite/files" ) func checkEqual(stored, loaded lite.FullCommit, chainID string) error { err := loaded.ValidateBasic(chainID) if err != nil { return err } if !bytes.Equal(stored.ValidatorsHash(), loaded.ValidatorsHash()) { return errors.New("Different block hashes") } return nil } func TestFileProvider(t *testing.T) { assert, require := assert.New(t), require.New(t) dir, err := ioutil.TempDir("", "fileprovider-test") assert.Nil(err) defer os.RemoveAll(dir) p := files.NewProvider(dir) chainID := "test-files" appHash := []byte("some-data") keys := lite.GenValKeys(5) count := 10 // make a bunch of seeds... seeds := make([]lite.FullCommit, count) for i := 0; i < count; i++ { // two seeds for each validator, to check how we handle dups // (10, 0), (10, 1), (10, 1), (10, 2), (10, 2), ... vals := keys.ToValidators(10, int64(count/2)) h := int64(20 + 10*i) check := keys.GenCommit(chainID, h, nil, vals, appHash, []byte("params"), []byte("results"), 0, 5) seeds[i] = lite.NewFullCommit(check, vals) } // check provider is empty seed, err := p.GetByHeight(20) require.NotNil(err) assert.True(liteErr.IsCommitNotFoundErr(err)) seed, err = p.GetByHash(seeds[3].ValidatorsHash()) require.NotNil(err) assert.True(liteErr.IsCommitNotFoundErr(err)) // now add them all to the provider for _, s := range seeds { err = p.StoreCommit(s) require.Nil(err) // and make sure we can get it back s2, err := p.GetByHash(s.ValidatorsHash()) assert.Nil(err) err = checkEqual(s, s2, chainID) assert.Nil(err) // by height as well s2, err = p.GetByHeight(s.Height()) err = checkEqual(s, s2, chainID) assert.Nil(err) } // make sure we get the last hash if we overstep seed, err = p.GetByHeight(5000) if assert.Nil(err, "%+v", err) { assert.Equal(seeds[count-1].Height(), seed.Height()) err = checkEqual(seeds[count-1], seed, chainID) assert.Nil(err) } // and middle ones as well seed, err = p.GetByHeight(47) if assert.Nil(err, "%+v", err) { // we only step by 10, so 40 must be the one below this assert.EqualValues(40, seed.Height()) } // and proper error for too low _, err = p.GetByHeight(5) assert.NotNil(err) assert.True(liteErr.IsCommitNotFoundErr(err)) }