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package proxy
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import (
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"fmt"
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"os"
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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/abci/example/kvstore"
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"github.com/tendermint/tendermint/lite"
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certclient "github.com/tendermint/tendermint/lite/client"
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nm "github.com/tendermint/tendermint/node"
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"github.com/tendermint/tendermint/rpc/client"
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rpctest "github.com/tendermint/tendermint/rpc/test"
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"github.com/tendermint/tendermint/types"
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)
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var node *nm.Node
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var chainID = "tendermint_test" // TODO use from config.
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// TODO fix tests!!
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func TestMain(m *testing.M) {
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app := kvstore.NewKVStoreApplication()
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node = rpctest.StartTendermint(app)
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code := m.Run()
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node.Stop()
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node.Wait()
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os.Exit(code)
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}
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func kvstoreTx(k, v []byte) []byte {
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return []byte(fmt.Sprintf("%s=%s", k, v))
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}
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func _TestAppProofs(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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cl := client.NewLocal(node)
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client.WaitForHeight(cl, 1, nil)
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k := []byte("my-key")
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v := []byte("my-value")
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tx := kvstoreTx(k, v)
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br, err := cl.BroadcastTxCommit(tx)
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require.NoError(err, "%+v", err)
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require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
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require.EqualValues(0, br.DeliverTx.Code)
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brh := br.Height
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// This sets up our trust on the node based on some past point.
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source := certclient.NewProvider(chainID, cl)
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seed, err := source.LatestFullCommit(chainID, brh-2, brh-2)
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require.NoError(err, "%+v", err)
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cert := lite.NewBaseCertifier("my-chain", seed.Height(), seed.Validators)
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client.WaitForHeight(cl, 3, nil)
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latest, err := source.LatestFullCommit(chainID, 1, 1<<63-1)
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require.NoError(err, "%+v", err)
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rootHash := latest.SignedHeader.AppHash
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// verify a query before the tx block has no data (and valid non-exist proof)
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bs, height, proof, err := GetWithProof(k, brh-1, cl, cert)
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fmt.Println(bs, height, proof, err)
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require.NotNil(err)
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require.True(IsErrNoData(err), err.Error())
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require.Nil(bs)
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// but given that block it is good
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bs, height, proof, err = GetWithProof(k, brh, cl, cert)
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require.NoError(err, "%+v", err)
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require.NotNil(proof)
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require.True(height >= int64(latest.Height()))
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// Alexis there is a bug here, somehow the above code gives us rootHash = nil
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// and proof.Verify doesn't care, while proofNotExists.Verify fails.
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// I am hacking this in to make it pass, but please investigate further.
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rootHash = proof.Root()
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//err = wire.ReadBinaryBytes(bs, &data)
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//require.NoError(err, "%+v", err)
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assert.EqualValues(v, bs)
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err = proof.Verify(k, bs, rootHash)
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assert.NoError(err, "%+v", err)
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// Test non-existing key.
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missing := []byte("my-missing-key")
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bs, _, proof, err = GetWithProof(missing, 0, cl, cert)
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require.True(IsErrNoData(err))
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require.Nil(bs)
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require.NotNil(proof)
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err = proof.Verify(missing, nil, rootHash)
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assert.NoError(err, "%+v", err)
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err = proof.Verify(k, nil, rootHash)
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assert.Error(err)
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}
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func _TestTxProofs(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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cl := client.NewLocal(node)
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client.WaitForHeight(cl, 1, nil)
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tx := kvstoreTx([]byte("key-a"), []byte("value-a"))
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br, err := cl.BroadcastTxCommit(tx)
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require.NoError(err, "%+v", err)
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require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
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require.EqualValues(0, br.DeliverTx.Code)
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brh := br.Height
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source := certclient.NewProvider(chainID, cl)
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seed, err := source.LatestFullCommit(chainID, brh-2, brh-2)
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require.NoError(err, "%+v", err)
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cert := lite.NewBaseCertifier("my-chain", seed.Height(), seed.Validators)
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// First let's make sure a bogus transaction hash returns a valid non-existence proof.
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key := types.Tx([]byte("bogus")).Hash()
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res, err := cl.Tx(key, true)
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require.NotNil(err)
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require.Contains(err.Error(), "not found")
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// Now let's check with the real tx hash.
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key = types.Tx(tx).Hash()
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res, err = cl.Tx(key, true)
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require.NoError(err, "%+v", err)
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require.NotNil(res)
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err = res.Proof.Validate(key)
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assert.NoError(err, "%+v", err)
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commit, err := GetCertifiedCommit(br.Height, cl, cert)
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require.Nil(err, "%+v", err)
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require.Equal(res.Proof.RootHash, commit.Header.DataHash)
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}
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