Add Coordinator goroutines & channels processes

Add Coordinator goroutines & channels processes
- Add Coordinator goroutines & channels
- Add Coordinator test to debug batches
- Add MakeCheckpoint call after BatchBuilder BuildBatch process
- Update ethClient BlockByNumber to return hermez/common.Block instead of go-ethereum/core/types.Block

coordinator/coordinator_test.go

@@ -0,0 +1,76 @@
+package coordinator
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/hermeznetwork/hermez-node/batchbuilder"
+	"github.com/hermeznetwork/hermez-node/db/historydb"
+	"github.com/hermeznetwork/hermez-node/db/l2db"
+	"github.com/hermeznetwork/hermez-node/db/statedb"
+	"github.com/hermeznetwork/hermez-node/log"
+	"github.com/hermeznetwork/hermez-node/txselector"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func newTestModules(t *testing.T) (*txselector.TxSelector, *batchbuilder.BatchBuilder) { // FUTURE once Synchronizer is ready, should return it also
+	nLevels := 32
+
+	synchDB, err := ioutil.TempDir("", "tmpSynchDB")
+	require.Nil(t, err)
+	sdb, err := statedb.NewStateDB(synchDB, true, nLevels)
+	assert.Nil(t, err)
+
+	pass := os.Getenv("POSTGRES_PASS")
+	l2DB, err := l2db.NewL2DB(5432, "localhost", "hermez", pass, "l2", 10, 512, 24*time.Hour)
+	require.Nil(t, err)
+
+	txselDir, err := ioutil.TempDir("", "tmpTxSelDB")
+	require.Nil(t, err)
+	txsel, err := txselector.NewTxSelector(txselDir, sdb, l2DB, 10, 10, 10)
+	assert.Nil(t, err)
+
+	bbDir, err := ioutil.TempDir("", "tmpBatchBuilderDB")
+	require.Nil(t, err)
+	bb, err := batchbuilder.NewBatchBuilder(bbDir, sdb, nil, 0, uint64(nLevels))
+	assert.Nil(t, err)
+
+	// l1Txs, coordinatorL1Txs, poolL2Txs := test.GenerateTestTxsFromSet(t, test.SetTest0)
+
+	return txsel, bb
+}
+
+func TestCoordinator(t *testing.T) {
+	txsel, bb := newTestModules(t)
+
+	conf := CoordinatorConfig{
+		LoopInterval: 100 * time.Millisecond,
+	}
+	hdb := &historydb.HistoryDB{}
+	c := NewCoordinator(conf, hdb, txsel, bb, nil)
+	c.Start()
+	time.Sleep(1 * time.Second)
+
+	// simulate forgeSequence time
+	log.Debug("simulate entering in forge time")
+	c.isForgeSeq = true
+	time.Sleep(1 * time.Second)
+
+	// simulate going out from forgeSequence
+	log.Debug("simulate going out from forge time")
+	c.isForgeSeq = false
+	time.Sleep(1 * time.Second)
+
+	// simulate entering forgeSequence time again
+	log.Debug("simulate entering in forge time again")
+	c.isForgeSeq = true
+	time.Sleep(1 * time.Second)
+
+	// simulate stopping forgerLoop by channel
+	log.Debug("simulate stopping forgerLoop by closing coordinator stopch")
+	c.Stop()
+	time.Sleep(1 * time.Second)
+}