rpc: fix receipt logs (#285)

* update GetTransactionReceipt and test

* change DecodeResultData err check back

* change doCall back

* change doCall back

* add logs

* remove prints

rpc/eth_api.go

@@ -708,6 +708,10 @@ func (e *PublicEthAPI) GetTransactionReceipt(hash common.Hash) (map[string]inter
 		status = 0 // transaction failed
 	}
 
+	if data.Logs == nil {
+		data.Logs = []*ethtypes.Log{}
+	}
+
 	receipt := map[string]interface{}{
 		// Consensus fields: These fields are defined by the Yellow Paper
 		"status":            status,

tests/rpc_test.go

@@ -276,6 +276,7 @@ func sendTestTransaction(t *testing.T) hexutil.Bytes {
 	param[0] = make(map[string]string)
 	param[0]["from"] = "0x" + fmt.Sprintf("%x", from)
 	param[0]["to"] = "0x1122334455667788990011223344556677889900"
+	param[0]["value"] = "0x1"
 	rpcRes := call(t, "eth_sendTransaction", param)
 
 	var hash hexutil.Bytes
@@ -296,6 +297,7 @@ func TestEth_GetTransactionReceipt(t *testing.T) {
 	err := json.Unmarshal(rpcRes.Result, &receipt)
 	require.NoError(t, err)
 	require.Equal(t, "0x1", receipt["status"].(string))
+	require.Equal(t, []interface{}{}, receipt["logs"].([]interface{}))
 }
 
 // deployTestContract deploys a contract that emits an event in the constructor