package rpc

//import (
//	"fmt"
//	"os"
//	"testing"
//	"time"

//	"github.com/stretchr/testify/assert"
//	"github.com/stretchr/testify/require"

//	"github.com/tendermint/tendermint/abci/example/kvstore"
//	"github.com/tendermint/tendermint/crypto/merkle"
//	"github.com/tendermint/tendermint/lite"
//	certclient "github.com/tendermint/tendermint/lite/client"
//	nm "github.com/tendermint/tendermint/node"
//	"github.com/tendermint/tendermint/rpc/client"
//	rpctest "github.com/tendermint/tendermint/rpc/test"
//	"github.com/tendermint/tendermint/types"
//)

//var node *nm.Node
//var chainID = "tendermint_test" // TODO use from config.
////nolint:unused
//var waitForEventTimeout = 5 * time.Second

//// TODO fix tests!!

//func TestMain(m *testing.M) {
//	app := kvstore.NewKVStoreApplication()
//	node = rpctest.StartTendermint(app)

//	code := m.Run()

//	rpctest.StopTendermint(node)
//	os.Exit(code)
//}

//func kvstoreTx(k, v []byte) []byte {
//	return []byte(fmt.Sprintf("%s=%s", k, v))
//}

//// TODO: enable it after general proof format has been adapted
//// in abci/examples/kvstore.go
////nolint:unused,deadcode
//func _TestAppProofs(t *testing.T) {
//	assert, require := assert.New(t), require.New(t)

//	prt := defaultProofRuntime()
//	cl := client.NewLocal(node)
//	client.WaitForHeight(cl, 1, nil)

//	// This sets up our trust on the node based on some past point.
//	source := certclient.NewProvider(chainID, cl)
//	seed, err := source.LatestFullCommit(chainID, 1, 1)
//	require.NoError(err, "%#v", err)
//	cert := lite.NewBaseVerifier(chainID, seed.Height(), seed.Validators)

//	// Wait for tx confirmation.
//	done := make(chan int64)
//	go func() {
//		evtTyp := types.EventTx
//		_, err = client.WaitForOneEvent(cl, evtTyp, waitForEventTimeout)
//		require.Nil(err, "%#v", err)
//		close(done)
//	}()

//	// Submit a transaction.
//	k := []byte("my-key")
//	v := []byte("my-value")
//	tx := kvstoreTx(k, v)
//	br, err := cl.BroadcastTxCommit(tx)
//	require.NoError(err, "%#v", err)
//	require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
//	require.EqualValues(0, br.DeliverTx.Code)
//	brh := br.Height

//	// Fetch latest after tx commit.
//	<-done
//	latest, err := source.LatestFullCommit(chainID, 1, 1<<63-1)
//	require.NoError(err, "%#v", err)
//	rootHash := latest.SignedHeader.AppHash
//	if rootHash == nil {
//		// Fetch one block later, AppHash hasn't been committed yet.
//		// TODO find a way to avoid doing this.
//		client.WaitForHeight(cl, latest.SignedHeader.Height+1, nil)
//		latest, err = source.LatestFullCommit(chainID, latest.SignedHeader.Height+1, 1<<63-1)
//		require.NoError(err, "%#v", err)
//		rootHash = latest.SignedHeader.AppHash
//	}
//	require.NotNil(rootHash)

//	// verify a query before the tx block has no data (and valid non-exist proof)
//	bs, height, proof, err := GetWithProof(prt, k, brh-1, cl, cert)
//	require.NoError(err, "%#v", err)
//	require.NotNil(proof)
//	require.Equal(height, brh-1)
//	// require.NotNil(proof)
//	// TODO: Ensure that *some* keys will be there, ensuring that proof is nil,
//	// (currently there's a race condition)
//	// and ensure that proof proves absence of k.
//	require.Nil(bs)

//	// but given that block it is good
//	bs, height, proof, err = GetWithProof(prt, k, brh, cl, cert)
//	require.NoError(err, "%#v", err)
//	require.NotNil(proof)
//	require.Equal(height, brh)

//	assert.EqualValues(v, bs)
//	err = prt.VerifyValue(proof, rootHash, string(k), bs) // XXX key encoding
//	assert.NoError(err, "%#v", err)

//	// Test non-existing key.
//	missing := []byte("my-missing-key")
//	bs, _, proof, err = GetWithProof(prt, missing, 0, cl, cert)
//	require.NoError(err)
//	require.Nil(bs)
//	require.NotNil(proof)
//	err = prt.VerifyAbsence(proof, rootHash, string(missing)) // XXX VerifyAbsence(), keyencoding
//	assert.NoError(err, "%#v", err)
//	err = prt.VerifyAbsence(proof, rootHash, string(k)) // XXX VerifyAbsence(), keyencoding
//	assert.Error(err, "%#v", err)
//}

//func TestTxProofs(t *testing.T) {
//	assert, require := assert.New(t), require.New(t)

//	cl := client.NewLocal(node)
//	client.WaitForHeight(cl, 1, nil)

//	tx := kvstoreTx([]byte("key-a"), []byte("value-a"))
//	br, err := cl.BroadcastTxCommit(tx)
//	require.NoError(err, "%#v", err)
//	require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
//	require.EqualValues(0, br.DeliverTx.Code)
//	brh := br.Height

//	source := certclient.NewProvider(chainID, cl)
//	seed, err := source.LatestFullCommit(chainID, brh-2, brh-2)
//	require.NoError(err, "%#v", err)
//	cert := lite.NewBaseVerifier(chainID, seed.Height(), seed.Validators)

//	// First let's make sure a bogus transaction hash returns a valid non-existence proof.
//	key := types.Tx([]byte("bogus")).Hash()
//	_, err = cl.Tx(key, true)
//	require.NotNil(err)
//	require.Contains(err.Error(), "not found")

//	// Now let's check with the real tx root hash.
//	key = types.Tx(tx).Hash()
//	res, err := cl.Tx(key, true)
//	require.NoError(err, "%#v", err)
//	require.NotNil(res)
//	keyHash := merkle.SimpleHashFromByteSlices([][]byte{key})
//	err = res.Proof.Validate(keyHash)
//	assert.NoError(err, "%#v", err)

//	commit, err := GetCertifiedCommit(br.Height, cl, cert)
//	require.Nil(err, "%#v", err)
//	require.Equal(res.Proof.RootHash, commit.Header.DataHash)
//}