Copy certifiers from light-client

certifiers/client/provider_test.go

@@ -0,0 +1,62 @@
+package client_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	rpctest "github.com/tendermint/tendermint/rpc/test"
+
+	"github.com/tendermint/tendermint/certifiers"
+	"github.com/tendermint/tendermint/certifiers/client"
+	certerr "github.com/tendermint/tendermint/certifiers/errors"
+)
+
+func TestProvider(t *testing.T) {
+	assert, require := assert.New(t), require.New(t)
+
+	cfg := rpctest.GetConfig()
+	rpcAddr := cfg.RPC.ListenAddress
+	chainID := cfg.ChainID
+	p := client.NewHTTPProvider(rpcAddr)
+	require.NotNil(t, p)
+
+	// let it produce some blocks
+	time.Sleep(500 * time.Millisecond)
+
+	// let's get the highest block
+	seed, err := p.LatestCommit()
+
+	require.Nil(err, "%+v", err)
+	sh := seed.Height()
+	vhash := seed.Header.ValidatorsHash
+	assert.True(sh < 5000)
+
+	// let's check this is valid somehow
+	assert.Nil(seed.ValidateBasic(chainID))
+	cert := certifiers.NewStatic(chainID, seed.Validators)
+
+	// historical queries now work :)
+	lower := sh - 5
+	seed, err = p.GetByHeight(lower)
+	assert.Nil(err, "%+v", err)
+	assert.Equal(lower, seed.Height())
+
+	// also get by hash (given the match)
+	seed, err = p.GetByHash(vhash)
+	require.Nil(err, "%+v", err)
+	require.Equal(vhash, seed.Header.ValidatorsHash)
+	err = cert.Certify(seed.Commit)
+	assert.Nil(err, "%+v", err)
+
+	// get by hash fails without match
+	seed, err = p.GetByHash([]byte("foobar"))
+	assert.NotNil(err)
+	assert.True(certerr.IsCommitNotFoundErr(err))
+
+	// storing the seed silently ignored
+	err = p.StoreCommit(seed)
+	assert.Nil(err, "%+v", err)
+}