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package proxyd
import (
"encoding/json"
"strings"
"testing"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/stretchr/testify/require"
)
type args struct {
rctx RewriteContext
req *RPCReq
res *RPCRes
}
type rewriteTest struct {
name string
args args
expected RewriteResult
expectedErr error
check func(*testing.T, args)
}
func TestRewriteRequest(t *testing.T) {
tests := []rewriteTest{
/* range scoped */
{
name: "eth_getLogs fromBlock latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": "latest"}})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(100).String(), p[0]["fromBlock"])
},
},
{
name: "eth_getLogs fromBlock within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": hexutil.Uint64(55).String()}})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(55).String(), p[0]["fromBlock"])
},
},
{
name: "eth_getLogs fromBlock out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": hexutil.Uint64(111).String()}})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
{
name: "eth_getLogs toBlock latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"toBlock": "latest"}})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(100).String(), p[0]["toBlock"])
},
},
{
name: "eth_getLogs toBlock within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"toBlock": hexutil.Uint64(55).String()}})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(55).String(), p[0]["toBlock"])
},
},
{
name: "eth_getLogs toBlock out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"toBlock": hexutil.Uint64(111).String()}})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
{
name: "eth_getLogs fromBlock, toBlock latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": "latest", "toBlock": "latest"}})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(100).String(), p[0]["fromBlock"])
require.Equal(t, hexutil.Uint64(100).String(), p[0]["toBlock"])
},
},
{
name: "eth_getLogs fromBlock, toBlock within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": hexutil.Uint64(55).String(), "toBlock": hexutil.Uint64(77).String()}})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []map[string]interface{}
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, hexutil.Uint64(55).String(), p[0]["fromBlock"])
require.Equal(t, hexutil.Uint64(77).String(), p[0]["toBlock"])
},
},
{
name: "eth_getLogs fromBlock, toBlock out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getLogs", Params: mustMarshalJSON([]map[string]interface{}{{"fromBlock": hexutil.Uint64(111).String(), "toBlock": hexutil.Uint64(222).String()}})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
/* required parameter at pos 0 */
{
name: "debug_getRawReceipts latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "debug_getRawReceipts", Params: mustMarshalJSON([]string{"latest"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(100).String(), p[0])
},
},
{
name: "debug_getRawReceipts within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "debug_getRawReceipts", Params: mustMarshalJSON([]string{hexutil.Uint64(55).String()})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(55).String(), p[0])
},
},
{
name: "debug_getRawReceipts out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "debug_getRawReceipts", Params: mustMarshalJSON([]string{hexutil.Uint64(111).String()})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
{
name: "debug_getRawReceipts missing parameter",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "debug_getRawReceipts", Params: mustMarshalJSON([]string{})},
res: nil,
},
expected: RewriteNone,
},
{
name: "debug_getRawReceipts with block hash",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "debug_getRawReceipts", Params: mustMarshalJSON([]string{"0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b"})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, "0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b", p[0])
},
},
/* default block parameter */
{
name: "eth_getCode omit block, should add",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getCode", Params: mustMarshalJSON([]string{"0x123"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 2, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, hexutil.Uint64(100).String(), p[1])
},
},
{
name: "eth_getCode not enough params, should do nothing",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getCode", Params: mustMarshalJSON([]string{})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 0, len(p))
},
},
{
name: "eth_getCode latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getCode", Params: mustMarshalJSON([]string{"0x123", "latest"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 2, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, hexutil.Uint64(100).String(), p[1])
},
},
{
name: "eth_getCode within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getCode", Params: mustMarshalJSON([]string{"0x123", hexutil.Uint64(55).String()})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 2, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, hexutil.Uint64(55).String(), p[1])
},
},
{
name: "eth_getCode out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getCode", Params: mustMarshalJSON([]string{"0x123", hexutil.Uint64(111).String()})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
/* default block parameter, at position 2 */
{
name: "eth_getStorageAt omit block, should add",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getStorageAt", Params: mustMarshalJSON([]string{"0x123", "5"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 3, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, "5", p[1])
require.Equal(t, hexutil.Uint64(100).String(), p[2])
},
},
{
name: "eth_getStorageAt latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getStorageAt", Params: mustMarshalJSON([]string{"0x123", "5", "latest"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 3, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, "5", p[1])
require.Equal(t, hexutil.Uint64(100).String(), p[2])
},
},
{
name: "eth_getStorageAt within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getStorageAt", Params: mustMarshalJSON([]string{"0x123", "5", hexutil.Uint64(55).String()})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 3, len(p))
require.Equal(t, "0x123", p[0])
require.Equal(t, "5", p[1])
require.Equal(t, hexutil.Uint64(55).String(), p[2])
},
},
{
name: "eth_getStorageAt out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getStorageAt", Params: mustMarshalJSON([]string{"0x123", "5", hexutil.Uint64(111).String()})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
/* default block parameter, at position 0 */
{
name: "eth_getBlockByNumber omit block, should add",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(100).String(), p[0])
},
},
{
name: "eth_getBlockByNumber latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{"latest"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(100).String(), p[0])
},
},
{
name: "eth_getBlockByNumber finalized",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100), finalized: hexutil.Uint64(55)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{"finalized"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(55).String(), p[0])
},
},
{
name: "eth_getBlockByNumber safe",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100), safe: hexutil.Uint64(50)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{"safe"})},
res: nil,
},
expected: RewriteOverrideRequest,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(50).String(), p[0])
},
},
{
name: "eth_getBlockByNumber within range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{hexutil.Uint64(55).String()})},
res: nil,
},
expected: RewriteNone,
check: func(t *testing.T, args args) {
var p []string
err := json.Unmarshal(args.req.Params, &p)
require.Nil(t, err)
require.Equal(t, 1, len(p))
require.Equal(t, hexutil.Uint64(55).String(), p[0])
},
},
{
name: "eth_getBlockByNumber out of range",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getBlockByNumber", Params: mustMarshalJSON([]string{hexutil.Uint64(111).String()})},
res: nil,
},
expected: RewriteOverrideError,
expectedErr: ErrRewriteBlockOutOfRange,
},
{
name: "eth_getStorageAt using rpc.BlockNumberOrHash",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_getStorageAt", Params: mustMarshalJSON([]string{
"0xae851f927ee40de99aabb7461c00f9622ab91d60",
"0x65a7ed542fb37fe237fdfbdd70b31598523fe5b32879e307bae27a0bd9581c08",
"0x1c4840bcb3de3ac403c0075b46c2c47d4396c5b624b6e1b2874ec04e8879b483"})},
res: nil,
},
expected: RewriteNone,
},
}
// generalize tests for other methods with same interface and behavior
tests = generalize(tests, "eth_getLogs", "eth_newFilter")
tests = generalize(tests, "eth_getCode", "eth_getBalance")
tests = generalize(tests, "eth_getCode", "eth_getTransactionCount")
tests = generalize(tests, "eth_getCode", "eth_call")
tests = generalize(tests, "eth_getBlockByNumber", "eth_getBlockTransactionCountByNumber")
tests = generalize(tests, "eth_getBlockByNumber", "eth_getUncleCountByBlockNumber")
tests = generalize(tests, "eth_getBlockByNumber", "eth_getTransactionByBlockNumberAndIndex")
tests = generalize(tests, "eth_getBlockByNumber", "eth_getUncleByBlockNumberAndIndex")
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result, err := RewriteRequest(tt.args.rctx, tt.args.req, tt.args.res)
if result != RewriteOverrideError {
require.Nil(t, err)
require.Equal(t, tt.expected, result)
} else {
require.Equal(t, tt.expectedErr, err)
}
if tt.check != nil {
tt.check(t, tt.args)
}
})
}
}
func generalize(tests []rewriteTest, baseMethod string, generalizedMethod string) []rewriteTest {
newCases := make([]rewriteTest, 0)
for _, t := range tests {
if t.args.req.Method == baseMethod {
newName := strings.Replace(t.name, baseMethod, generalizedMethod, -1)
var req *RPCReq
var res *RPCRes
if t.args.req != nil {
req = &RPCReq{
JSONRPC: t.args.req.JSONRPC,
Method: generalizedMethod,
Params: t.args.req.Params,
ID: t.args.req.ID,
}
}
if t.args.res != nil {
res = &RPCRes{
JSONRPC: t.args.res.JSONRPC,
Result: t.args.res.Result,
Error: t.args.res.Error,
ID: t.args.res.ID,
}
}
newCases = append(newCases, rewriteTest{
name: newName,
args: args{
rctx: t.args.rctx,
req: req,
res: res,
},
expected: t.expected,
expectedErr: t.expectedErr,
check: t.check,
})
}
}
return append(tests, newCases...)
}
func TestRewriteResponse(t *testing.T) {
type args struct {
rctx RewriteContext
req *RPCReq
res *RPCRes
}
tests := []struct {
name string
args args
expected RewriteResult
check func(*testing.T, args)
}{
{
name: "eth_blockNumber latest",
args: args{
rctx: RewriteContext{latest: hexutil.Uint64(100)},
req: &RPCReq{Method: "eth_blockNumber"},
res: &RPCRes{Result: hexutil.Uint64(200)},
},
expected: RewriteOverrideResponse,
check: func(t *testing.T, args args) {
require.Equal(t, args.res.Result, hexutil.Uint64(100))
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result, err := RewriteResponse(tt.args.rctx, tt.args.req, tt.args.res)
require.Nil(t, err)
require.Equal(t, tt.expected, result)
if tt.check != nil {
tt.check(t, tt.args)
}
})
}
}