Add mock EthClient for testing

test/ethclient_test.go

@@ -0,0 +1,46 @@
+package test
+
+import (
+	"context"
+	"math/big"
+	"testing"
+	"time"
+
+	"github.com/hermeznetwork/hermez-node/eth"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestClientInterface(t *testing.T) {
+	var c eth.ClientInterface
+	client := NewTestEthClient(true, 1000)
+	c = client
+	require.NotNil(t, c)
+}
+
+func TestEthClient(t *testing.T) {
+	c := NewTestEthClient(true, 1000)
+
+	block, err := c.BlockByNumber(context.TODO(), big.NewInt(3))
+	assert.Nil(t, err)
+	assert.Equal(t, uint64(3), block.EthBlockNum)
+	assert.Equal(t, time.Unix(3, 0), block.Timestamp)
+	assert.Equal(t, "0x6b0ab5a7a0ebf5f05cef3b49bc7a9739de06469a4e05557d802ee828fdf5187e", block.Hash.Hex())
+
+	header, err := c.HeaderByNumber(context.TODO(), big.NewInt(4))
+	assert.Nil(t, err)
+	assert.Equal(t, big.NewInt(4), header.Number)
+	assert.Equal(t, uint64(4), header.Time)
+	assert.Equal(t, "0x66cdb12322040a5a345ad29cea66ca97c14d6142b53987010947c8c008e26913", header.Hash().Hex())
+
+	assert.Equal(t, big.NewInt(1000), c.blockNum)
+	c.Advance()
+	assert.Equal(t, big.NewInt(1001), c.blockNum)
+	c.Advance()
+	assert.Equal(t, big.NewInt(1002), c.blockNum)
+
+	c.SetBlockNum(big.NewInt(5000))
+	assert.Equal(t, big.NewInt(5000), c.blockNum)
+	c.Advance()
+	assert.Equal(t, big.NewInt(5001), c.blockNum)
+}