evm: update msgs to accept zero gas price (#299)

* update keeper to accept gas price=0; default pending to latest

* cleanup

* more cleanup

* more cleanup

* more cleanup

* more cleanup

* ante: copy IncrementSequenceDecorator from SDK's AnteHandler

* improve bloom test

* lint

* update msg error

Co-authored-by: Federico Kunze <federico.kunze94@gmail.com>
Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>

tests/rpc_test.go

@@ -11,6 +11,7 @@ package tests
 
 import (
 	"bytes"
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"math/big"
@@ -107,6 +108,14 @@ func call(t *testing.T, method string, params interface{}) *Response {
 	return rpcRes
 }
 
+// turns a 0x prefixed hex string to a big.Int
+func hexToBigInt(t *testing.T, in string) *big.Int {
+	s := in[2:]
+	b, err := hex.DecodeString(s)
+	require.NoError(t, err)
+	return big.NewInt(0).SetBytes(b)
+}
+
 func TestEth_protocolVersion(t *testing.T) {
 	expectedRes := hexutil.Uint(version.ProtocolVersion)
 
@@ -590,3 +599,41 @@ func TestEth_PendingTransactionFilter(t *testing.T) {
 	require.True(t, len(txs) >= 2, "could not get any txs", "changesRes.Result", string(changesRes.Result))
 
 }
+
+func TestBlockBloom(t *testing.T) {
+	hash := deployTestContractWithFunction(t)
+	receipt := waitForReceipt(t, hash)
+
+	number := receipt["blockNumber"].(string)
+	t.Log(number)
+
+	param := []interface{}{number, false}
+	rpcRes := call(t, "eth_getBlockByNumber", param)
+
+	block := make(map[string]interface{})
+	err := json.Unmarshal(rpcRes.Result, &block)
+	require.NoError(t, err)
+
+	lb := hexToBigInt(t, block["logsBloom"].(string))
+	require.NotEqual(t, big.NewInt(0), lb)
+	require.Equal(t, hash.String(), block["transactions"].([]interface{})[0])
+}
+
+func TestBlockBloom_Hash(t *testing.T) {
+	t.Skip()
+	// TODO: get this to work
+	hash := deployTestContractWithFunction(t)
+	receipt := waitForReceipt(t, hash)
+
+	blockHash := receipt["blockHash"].(string)
+
+	param := []interface{}{blockHash, false}
+	rpcRes := call(t, "eth_getBlockByHash", param)
+
+	block := make(map[string]interface{})
+	err := json.Unmarshal(rpcRes.Result, &block)
+	require.NoError(t, err)
+
+	lb := hexToBigInt(t, block["logsBloom"].(string))
+	require.NotEqual(t, big.NewInt(0), lb)
+}