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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package filters
import (
"encoding/json"
"fmt"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/rpc"
)
func TestUnmarshalJSONNewFilterArgs(t *testing.T) {
var (
fromBlock rpc.BlockNumber = 0x123435
toBlock rpc.BlockNumber = 0xabcdef
address0 = common.StringToAddress("70c87d191324e6712a591f304b4eedef6ad9bb9d")
address1 = common.StringToAddress("9b2055d370f73ec7d8a03e965129118dc8f5bf83")
topic0 = common.HexToHash("3ac225168df54212a25c1c01fd35bebfea408fdac2e31ddd6f80a4bbf9a5f1ca")
topic1 = common.HexToHash("9084a792d2f8b16a62b882fd56f7860c07bf5fa91dd8a2ae7e809e5180fef0b3")
topic2 = common.HexToHash("6ccae1c4af4152f460ff510e573399795dfab5dcf1fa60d1f33ac8fdc1e480ce")
nullTopic = common.Hash{}
)
// default values
var test0 FilterCriteria
if err := json.Unmarshal([]byte("{}"), &test0); err != nil {
t.Fatal(err)
}
if test0.FromBlock != nil {
t.Fatalf("expected nil, got %d", test0.FromBlock)
}
if test0.ToBlock != nil {
t.Fatalf("expected nil, got %d", test0.ToBlock)
}
if len(test0.Addresses) != 0 {
t.Fatalf("expected 0 addresses, got %d", len(test0.Addresses))
}
if len(test0.Topics) != 0 {
t.Fatalf("expected 0 topics, got %d topics", len(test0.Topics))
}
// from, to block number
var test1 FilterCriteria
vector := fmt.Sprintf(`{"fromBlock":"0x%x","toBlock":"0x%x"}`, fromBlock, toBlock)
if err := json.Unmarshal([]byte(vector), &test1); err != nil {
t.Fatal(err)
}
if test1.FromBlock.Int64() != fromBlock.Int64() {
t.Fatalf("expected FromBlock %d, got %d", fromBlock, test1.FromBlock)
}
if test1.ToBlock.Int64() != toBlock.Int64() {
t.Fatalf("expected ToBlock %d, got %d", toBlock, test1.ToBlock)
}
// single address
var test2 FilterCriteria
vector = fmt.Sprintf(`{"address": "%s"}`, address0.Hex())
if err := json.Unmarshal([]byte(vector), &test2); err != nil {
t.Fatal(err)
}
if len(test2.Addresses) != 1 {
t.Fatalf("expected 1 address, got %d address(es)", len(test2.Addresses))
}
if test2.Addresses[0] != address0 {
t.Fatalf("expected address %x, got %x", address0, test2.Addresses[0])
}
// multiple address
var test3 FilterCriteria
vector = fmt.Sprintf(`{"address": ["%s", "%s"]}`, address0.Hex(), address1.Hex())
if err := json.Unmarshal([]byte(vector), &test3); err != nil {
t.Fatal(err)
}
if len(test3.Addresses) != 2 {
t.Fatalf("expected 2 addresses, got %d address(es)", len(test3.Addresses))
}
if test3.Addresses[0] != address0 {
t.Fatalf("expected address %x, got %x", address0, test3.Addresses[0])
}
if test3.Addresses[1] != address1 {
t.Fatalf("expected address %x, got %x", address1, test3.Addresses[1])
}
// single topic
var test4 FilterCriteria
vector = fmt.Sprintf(`{"topics": ["%s"]}`, topic0.Hex())
if err := json.Unmarshal([]byte(vector), &test4); err != nil {
t.Fatal(err)
}
if len(test4.Topics) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test4.Topics))
}
if len(test4.Topics[0]) != 1 {
t.Fatalf("expected len(topics[0]) to be 1, got %d", len(test4.Topics[0]))
}
if test4.Topics[0][0] != topic0 {
t.Fatalf("got %x, expected %x", test4.Topics[0][0], topic0)
}
// test multiple "AND" topics
var test5 FilterCriteria
vector = fmt.Sprintf(`{"topics": ["%s", "%s"]}`, topic0.Hex(), topic1.Hex())
if err := json.Unmarshal([]byte(vector), &test5); err != nil {
t.Fatal(err)
}
if len(test5.Topics) != 2 {
t.Fatalf("expected 2 topics, got %d", len(test5.Topics))
}
if len(test5.Topics[0]) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test5.Topics[0]))
}
if test5.Topics[0][0] != topic0 {
t.Fatalf("got %x, expected %x", test5.Topics[0][0], topic0)
}
if len(test5.Topics[1]) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test5.Topics[1]))
}
if test5.Topics[1][0] != topic1 {
t.Fatalf("got %x, expected %x", test5.Topics[1][0], topic1)
}
// test optional topic
var test6 FilterCriteria
vector = fmt.Sprintf(`{"topics": ["%s", null, "%s"]}`, topic0.Hex(), topic2.Hex())
if err := json.Unmarshal([]byte(vector), &test6); err != nil {
t.Fatal(err)
}
if len(test6.Topics) != 3 {
t.Fatalf("expected 3 topics, got %d", len(test6.Topics))
}
if len(test6.Topics[0]) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test6.Topics[0]))
}
if test6.Topics[0][0] != topic0 {
t.Fatalf("got %x, expected %x", test6.Topics[0][0], topic0)
}
if len(test6.Topics[1]) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test6.Topics[1]))
}
if test6.Topics[1][0] != nullTopic {
t.Fatalf("got %x, expected empty hash", test6.Topics[1][0])
}
if len(test6.Topics[2]) != 1 {
t.Fatalf("expected 1 topic, got %d", len(test6.Topics[2]))
}
if test6.Topics[2][0] != topic2 {
t.Fatalf("got %x, expected %x", test6.Topics[2][0], topic2)
}
// test OR topics
var test7 FilterCriteria
vector = fmt.Sprintf(`{"topics": [["%s", "%s"], null, ["%s", null]]}`, topic0.Hex(), topic1.Hex(), topic2.Hex())
if err := json.Unmarshal([]byte(vector), &test7); err != nil {
t.Fatal(err)
}
if len(test7.Topics) != 3 {
t.Fatalf("expected 3 topics, got %d topics", len(test7.Topics))
}
if len(test7.Topics[0]) != 2 {
t.Fatalf("expected 2 topics, got %d topics", len(test7.Topics[0]))
}
if test7.Topics[0][0] != topic0 || test7.Topics[0][1] != topic1 {
t.Fatalf("invalid topics expected [%x,%x], got [%x,%x]",
topic0, topic1, test7.Topics[0][0], test7.Topics[0][1],
)
}
if len(test7.Topics[1]) != 1 {
t.Fatalf("expected 1 topic, got %d topics", len(test7.Topics[1]))
}
if test7.Topics[1][0] != nullTopic {
t.Fatalf("expected empty hash, got %x", test7.Topics[1][0])
}
if len(test7.Topics[2]) != 2 {
t.Fatalf("expected 2 topics, got %d topics", len(test7.Topics[2]))
}
if test7.Topics[2][0] != topic2 || test7.Topics[2][1] != nullTopic {
t.Fatalf("invalid topics expected [%x,%x], got [%x,%x]",
topic2, nullTopic, test7.Topics[2][0], test7.Topics[2][1],
)
}
}