149 lines
4.1 KiB
Go
149 lines
4.1 KiB
Go
package client
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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/go-wire"
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"github.com/tendermint/light-client/certifiers"
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certclient "github.com/tendermint/light-client/certifiers/client"
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"github.com/tendermint/tmlibs/log"
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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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sdkapp "github.com/cosmos/cosmos-sdk/app"
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"github.com/cosmos/cosmos-sdk/modules/eyes"
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)
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var node *nm.Node
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func TestMain(m *testing.M) {
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logger := log.TestingLogger()
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store, err := sdkapp.MockStoreApp("query", logger)
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if err != nil {
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panic(err)
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}
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app := sdkapp.NewBaseApp(store, eyes.NewHandler(), nil)
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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 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 := eyes.SetTx{Key: k, Value: v}.Wrap()
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btx := wire.BinaryBytes(tx)
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br, err := cl.BroadcastTxCommit(btx)
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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(cl)
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seed, err := source.GetByHeight(br.Height - 2)
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require.NoError(err, "%+v", err)
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cert := certifiers.NewStatic("my-chain", seed.Validators)
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client.WaitForHeight(cl, 3, nil)
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latest, err := source.LatestCommit()
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require.NoError(err, "%+v", err)
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rootHash := latest.Header.AppHash
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// Test existing key.
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var data eyes.Data
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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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require.NotNil(err)
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require.True(IsNoDataErr(err))
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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 >= uint64(latest.Header.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, data.Value)
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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(IsNoDataErr(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 := eyes.NewSetTx([]byte("key-a"), []byte("value-a"))
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btx := types.Tx(wire.BinaryBytes(tx))
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br, err := cl.BroadcastTxCommit(btx)
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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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fmt.Printf("tx height: %d\n", br.Height)
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source := certclient.NewProvider(cl)
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seed, err := source.GetByHeight(br.Height - 2)
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require.NoError(err, "%+v", err)
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cert := certifiers.NewStatic("my-chain", 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 = btx.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(int(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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