package http_test import ( "context" "fmt" "testing" "time" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/tendermint/tendermint/abci/example/kvstore" "github.com/tendermint/tendermint/light/provider" lighthttp "github.com/tendermint/tendermint/light/provider/http" rpcclient "github.com/tendermint/tendermint/rpc/client" rpchttp "github.com/tendermint/tendermint/rpc/client/http" rpctest "github.com/tendermint/tendermint/rpc/test" "github.com/tendermint/tendermint/types" ) func TestNewProvider(t *testing.T) { c, err := lighthttp.New("chain-test", "192.168.0.1:26657") require.NoError(t, err) require.Equal(t, fmt.Sprintf("%s", c), "http{http://192.168.0.1:26657}") c, err = lighthttp.New("chain-test", "http://153.200.0.1:26657") require.NoError(t, err) require.Equal(t, fmt.Sprintf("%s", c), "http{http://153.200.0.1:26657}") c, err = lighthttp.New("chain-test", "153.200.0.1") require.NoError(t, err) require.Equal(t, fmt.Sprintf("%s", c), "http{http://153.200.0.1}") } func TestProvider(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() cfg, err := rpctest.CreateConfig(t.Name()) require.NoError(t, err) // start a tendermint node in the background to test against app := kvstore.NewApplication() app.RetainBlocks = 9 _, closer, err := rpctest.StartTendermint(ctx, cfg, app) require.NoError(t, err) rpcAddr := cfg.RPC.ListenAddress genDoc, err := types.GenesisDocFromFile(cfg.GenesisFile()) require.NoError(t, err) chainID := genDoc.ChainID t.Log("chainID:", chainID) c, err := rpchttp.New(rpcAddr) require.Nil(t, err) p := lighthttp.NewWithClient(chainID, c) require.NoError(t, err) require.NotNil(t, p) // let it produce some blocks err = rpcclient.WaitForHeight(c, 10, nil) require.NoError(t, err) // let's get the highest block lb, err := p.LightBlock(context.Background(), 0) require.NoError(t, err) assert.True(t, lb.Height < 9001, "height=%d", lb.Height) // let's check this is valid somehow assert.Nil(t, lb.ValidateBasic(chainID)) // historical queries now work :) lower := lb.Height - 3 lb, err = p.LightBlock(context.Background(), lower) require.NoError(t, err) assert.Equal(t, lower, lb.Height) // fetching missing heights (both future and pruned) should return appropriate errors lb, err = p.LightBlock(context.Background(), 9001) require.Error(t, err) require.Nil(t, lb) assert.Equal(t, provider.ErrHeightTooHigh, err) lb, err = p.LightBlock(context.Background(), 1) require.Error(t, err) require.Nil(t, lb) assert.Equal(t, provider.ErrLightBlockNotFound, err) // if the provider is unable to provide four more blocks then we should return // an unreliable peer error for i := 0; i < 4; i++ { _, err = p.LightBlock(context.Background(), 1) } assert.IsType(t, provider.ErrUnreliableProvider{}, err) // shut down tendermint node require.NoError(t, closer(ctx)) cancel() time.Sleep(10 * time.Second) lb, err = p.LightBlock(context.Background(), lower+2) // we should see a connection refused require.Error(t, err) require.Nil(t, lb) assert.Equal(t, provider.ErrConnectionClosed, err) }