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main_test.go
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main_test.go
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package main_test
import (
"bytes"
"context"
"crypto/ecdsa"
"encoding/json"
"errors"
"fmt"
"io"
"log"
"math/big"
"net/http"
"os"
"strconv"
"strings"
"testing"
"time"
"github.com/cenkalti/backoff"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/rpc"
"github.com/redis/go-redis/v9"
"github.com/stretchr/testify/require"
"github.com/kava-labs/kava-proxy-service/clients/database"
"github.com/kava-labs/kava-proxy-service/clients/database/postgres"
"github.com/kava-labs/kava-proxy-service/config"
"github.com/kava-labs/kava-proxy-service/decode"
"github.com/kava-labs/kava-proxy-service/logging"
"github.com/kava-labs/kava-proxy-service/service"
"github.com/kava-labs/kava-proxy-service/service/cachemdw"
)
const (
EthClientUserAgent = "Go-http-client/1.1"
accessControlAllowOriginHeaderName = "Access-Control-Allow-Origin"
evmFaucetPrivateKeyHex = "247069f0bc3a5914cb2fd41e4133bbdaa6dbed9f47a01b9f110b5602c6e4cdd9"
evmFaucetAddressHex = "0x6767114FFAA17c6439D7aEA480738b982ce63A02"
)
var (
testContext = context.Background()
testServiceLogger = func() logging.ServiceLogger {
logger, err := logging.New("ERROR")
if err != nil {
panic(err)
}
return logger
}()
testExtendMetricWindowMs, _ = strconv.ParseInt(os.Getenv("TEST_EXTEND_METRIC_WINDOW_MS"), 10, 0)
proxyUnconfiguredUrl = os.Getenv("TEST_UNCONFIGURED_PROXY_URL")
proxyServiceURL = os.Getenv("TEST_PROXY_SERVICE_EVM_RPC_URL")
proxyServiceHostname = os.Getenv("TEST_PROXY_SERVICE_EVM_RPC_HOSTNAME")
proxyServicePruningURL = os.Getenv("TEST_PROXY_SERVICE_EVM_RPC_PRUNING_URL")
proxyServiceHeightBasedRouting, _ = strconv.ParseBool(os.Getenv("TEST_PROXY_HEIGHT_BASED_ROUTING_ENABLED"))
proxyServiceMaxBatchSize = config.EnvOrDefaultInt(config.PROXY_MAXIMUM_BATCH_SIZE_ENVIRONMENT_KEY, config.DEFAULT_PROXY_MAXIMUM_BATCH_SIZE)
databaseURL = os.Getenv("TEST_DATABASE_ENDPOINT_URL")
databasePassword = os.Getenv("DATABASE_PASSWORD")
databaseUsername = os.Getenv("DATABASE_USERNAME")
databaseName = os.Getenv("DATABASE_NAME")
databaseConfig = postgres.DatabaseConfig{
DatabaseName: databaseName,
DatabaseEndpointURL: databaseURL,
DatabaseUsername: databaseUsername,
DatabasePassword: databasePassword,
SSLEnabled: false,
QueryLoggingEnabled: false,
Logger: &testServiceLogger,
RunDatabaseMigrations: false,
}
redisURL = os.Getenv("TEST_REDIS_ENDPOINT_URL")
redisPassword = os.Getenv("REDIS_PASSWORD")
)
// lookup all the request metrics in the database paging as necessary
// search for any request metrics between startTime and time.Now() for particular request methods
// if testedmethods is empty, all metrics in timeframe are returned.
func findMetricsInWindowForMethods(db postgres.Client, startTime time.Time, testedmethods []string) []*database.ProxiedRequestMetric {
extension := time.Duration(testExtendMetricWindowMs) * time.Millisecond
// add small buffer into future in case metrics are still being created
endTime := time.Now().Add(extension)
var nextCursor int64
var proxiedRequestMetrics []*database.ProxiedRequestMetric
proxiedRequestMetricsPage, nextCursor, err := db.ListProxiedRequestMetricsWithPagination(testContext, nextCursor, 10000)
if err != nil {
panic(err)
}
proxiedRequestMetrics = proxiedRequestMetricsPage
for nextCursor != 0 {
proxiedRequestMetricsPage, nextCursor, err = db.ListProxiedRequestMetricsWithPagination(testContext, nextCursor, 10000)
if err != nil {
panic(err)
}
proxiedRequestMetrics = append(proxiedRequestMetrics, proxiedRequestMetricsPage...)
}
var requestMetricsDuringRequestWindow []*database.ProxiedRequestMetric
// iterate in reverse order to start checking the most recent request metrics first
for i := len(proxiedRequestMetrics) - 1; i >= 0; i-- {
requestMetric := proxiedRequestMetrics[i]
isBetween := requestMetric.RequestTime.After(startTime) && requestMetric.RequestTime.Before(endTime)
if isBetween || requestMetric.RequestTime.Equal(startTime) || requestMetric.RequestTime.Equal(endTime) {
// collect all metrics if testedmethods = []
if len(testedmethods) == 0 {
requestMetricsDuringRequestWindow = append(requestMetricsDuringRequestWindow, requestMetric)
continue
}
// collect metrics for any desired methods
for _, testedMethod := range testedmethods {
if requestMetric.MethodName == testedMethod {
requestMetricsDuringRequestWindow = append(requestMetricsDuringRequestWindow, requestMetric)
}
}
}
}
// ensure next window has no overlap with current one
time.Sleep(extension)
return requestMetricsDuringRequestWindow
}
// tests for metrics can frequently fail to pass because the check for what's there happens
// more quickly than the writes to the metrics database.
// remove some of that finickiness without unnecessary sleeping by polling for the expected requests
// and only considering it a fail if it times out.
func waitForMetricsInWindow(
t *testing.T,
expected int,
db postgres.Client,
startTime time.Time,
testedmethods []string,
) (metrics []*database.ProxiedRequestMetric) {
timeoutMin := 2 * time.Second
// scale the timeout by the number of expected requests, or at least 1 second
timeout := time.Duration(expected+1)*100*time.Millisecond + time.Second
if timeout < timeoutMin {
timeout = timeoutMin
}
// besides verification, waiting for the metrics ensures future tests don't fail b/c metrics are being processed
require.Eventually(t, func() bool {
metrics = findMetricsInWindowForMethods(db, startTime, testedmethods)
return len(metrics) >= expected
}, timeout, time.Millisecond,
fmt.Sprintf("failed to find %d metrics in %f seconds from start %s", expected, timeout.Seconds(), startTime))
return
}
func TestE2ETestProxyReturnsNonZeroLatestBlockHeader(t *testing.T) {
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
header, err := client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
require.Greater(t, int(header.Number.Int64()), 0)
}
func TestE2ETestProxyProxiesForMultipleHosts(t *testing.T) {
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
header, err := client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
require.Greater(t, int(header.Number.Int64()), 0)
pruningClient, err := ethclient.Dial(proxyServicePruningURL)
require.NoError(t, err)
header, err = pruningClient.HeaderByNumber(testContext, nil)
require.NoError(t, err)
require.Greater(t, int(header.Number.Int64()), 0)
}
func TestE2ETestProxyCreatesRequestMetricForEachRequest(t *testing.T) {
if shouldSkipMetrics() {
t.Skip("metrics are disabled")
}
testEthMethodName := "eth_getBlockByNumber"
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
// make request to api and track start / end time of the request to
startTime := time.Now()
_, err = client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
requestMetricsDuringRequestWindow := waitForMetricsInWindow(t, 1, databaseClient, startTime, []string{testEthMethodName})
requestMetricDuringRequestWindow := requestMetricsDuringRequestWindow[0]
require.Equal(t, requestMetricDuringRequestWindow.MethodName, testEthMethodName)
require.Equal(t, requestMetricDuringRequestWindow.Hostname, proxyServiceHostname)
require.NotEqual(t, requestMetricDuringRequestWindow.RequestIP, "")
require.Equal(t, *requestMetricDuringRequestWindow.UserAgent, EthClientUserAgent)
require.NotEqual(t, *requestMetricDuringRequestWindow.Referer, "")
require.NotEqual(t, *requestMetricDuringRequestWindow.Origin, "")
}
func TestE2ETestProxyTracksBlockNumberForEth_getBlockByNumberRequest(t *testing.T) {
testEthMethodName := "eth_getBlockByNumber"
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
// get the latest queryable block number
// need to do this dynamically since not all blocks
// are queryable for a given network
response, err := client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
requestBlockNumber := response.Number
// make request to api and track start / end time of the request to
startTime := time.Now()
_, err = client.HeaderByNumber(testContext, requestBlockNumber)
require.NoError(t, err)
if shouldSkipMetrics() {
return
}
requestMetricsDuringRequestWindow := waitForMetricsInWindow(
t, 1, databaseClient, startTime, []string{testEthMethodName},
)
requestMetricDuringRequestWindow := requestMetricsDuringRequestWindow[0]
require.Equal(t, requestMetricDuringRequestWindow.MethodName, testEthMethodName)
require.NotNil(t, *requestMetricDuringRequestWindow.BlockNumber)
require.Equal(t, *requestMetricDuringRequestWindow.BlockNumber, requestBlockNumber.Int64())
}
func TestE2ETestProxyTracksBlockTagForEth_getBlockByNumberRequest(t *testing.T) {
testEthMethodName := "eth_getBlockByNumber"
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
// make request to api and track start / end time of the request to
startTime := time.Now()
// will default to latest
_, err = client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
if shouldSkipMetrics() {
return
}
requestMetricsDuringRequestWindow := waitForMetricsInWindow(
t, 1, databaseClient, startTime, []string{testEthMethodName},
)
requestMetricDuringRequestWindow := requestMetricsDuringRequestWindow[0]
require.Equal(t, requestMetricDuringRequestWindow.MethodName, testEthMethodName)
require.NotNil(t, *requestMetricDuringRequestWindow.BlockNumber)
require.Equal(t, *requestMetricDuringRequestWindow.BlockNumber, decode.BlockTagToNumberCodec["latest"])
}
func TestE2ETestProxyTracksBlockNumberForMethodsWithBlockNumberParam(t *testing.T) {
testedmethods := decode.CacheableByBlockNumberMethods
testRandomAddressHex := "0x6767114FFAA17C6439D7AEA480738B982CE63A02"
testAddress := common.HexToAddress(testRandomAddressHex)
testRandomHash := common.HexToHash(testRandomAddressHex)
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
// get the latest queryable block number
// need to do this dynamically since not all blocks
// are queryable for a given network
latestBlock, err := client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
requestBlockNumber := latestBlock.Number
// make requests to api and track start / end time of the request
// we don't check response errors because the proxy will create metrics
// for each request whether the kava node api returns an error or not
// and if it doesn't the test itself will fail due to missing metrics
startTime := time.Now()
// eth_getBalance
_, _ = client.BalanceAt(testContext, testAddress, requestBlockNumber)
// eth_getStorageAt
_, _ = client.StorageAt(testContext, testAddress, testRandomHash, requestBlockNumber)
// eth_getTransactionCount
_, _ = client.NonceAt(testContext, testAddress, requestBlockNumber)
// eth_getBlockTransactionCountByNumber
_, _ = client.PendingTransactionCount(testContext)
// eth_getCode
_, _ = client.CodeAt(testContext, testAddress, requestBlockNumber)
// eth_getBlockByNumber
_, _ = client.HeaderByNumber(testContext, requestBlockNumber)
// eth_call
_, _ = client.CallContract(testContext, ethereum.CallMsg{}, requestBlockNumber)
if shouldSkipMetrics() {
return
}
requestMetricsDuringRequestWindow := waitForMetricsInWindow(
t, 7, databaseClient, startTime, testedmethods,
)
for _, requestMetricDuringRequestWindow := range requestMetricsDuringRequestWindow {
require.NotNil(t, *requestMetricDuringRequestWindow.BlockNumber)
if requestMetricDuringRequestWindow.MethodName == "eth_getBlockTransactionCountByNumber" {
require.Equal(t, *requestMetricDuringRequestWindow.BlockNumber, decode.BlockTagToNumberCodec["pending"])
continue
}
require.Equal(t, *requestMetricDuringRequestWindow.BlockNumber, requestBlockNumber.Int64())
}
}
func TestE2ETestProxyTracksBlockNumberForMethodsWithBlockHashParam(t *testing.T) {
testedmethods := decode.CacheableByBlockHashMethods
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
// get the latest queryable block number
// need to do this dynamically since not all blocks
// are queryable for a given network
latestBlock, err := client.HeaderByNumber(testContext, nil)
require.NoError(t, err)
requestBlockHash := latestBlock.ParentHash
// minus one since we are looking up the parent block
requestBlockNumber := latestBlock.Number.Int64() - 1
// make requests to api and track start / end time of the request
// we don't check response errors because the proxy will create metrics
// for each request whether the kava node api returns an error or not
// and if it doesn't the test itself will fail due to missing metrics
startTime := time.Now()
// eth_getBlockByHash
_, _ = client.BlockByHash(testContext, requestBlockHash)
// eth_getBlockTransactionCountByHash
_, _ = client.TransactionCount(testContext, requestBlockHash)
// eth_getTransactionByBlockHashAndIndex
_, _ = client.TransactionInBlock(testContext, requestBlockHash, 0)
if shouldSkipMetrics() {
return
}
requestMetricsDuringRequestWindow := waitForMetricsInWindow(
t, 3, databaseClient, startTime, testedmethods,
)
for _, requestMetricDuringRequestWindow := range requestMetricsDuringRequestWindow {
require.NotNil(t, *requestMetricDuringRequestWindow.BlockNumber)
require.Equal(t, *requestMetricDuringRequestWindow.BlockNumber, requestBlockNumber)
}
}
func TestE2ETest_HeightBasedRouting(t *testing.T) {
if !proxyServiceHeightBasedRouting {
t.Skip("TEST_PROXY_HEIGHT_BASED_ROUTING_ENABLED is false. skipping height-based routing e2e test")
}
rpc, err := rpc.Dial(proxyServiceURL)
require.NoError(t, err)
databaseClient, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
testCases := []struct {
name string
method string
params []interface{}
expectRoute string
}{
{
name: "request for non-latest height -> default",
method: "eth_getBlockByNumber",
params: []interface{}{"0x15", false}, // block 21 is beyond shards
expectRoute: service.ResponseBackendDefault,
},
{
name: "request for height in 1st shard -> shard",
method: "eth_getBlockByNumber",
params: []interface{}{"0x2", false}, // block 2
expectRoute: service.ResponseBackendShard,
},
{
name: "request for height in 2nd shard -> shard",
method: "eth_getBlockByNumber",
params: []interface{}{"0xF", false}, // block 15
expectRoute: service.ResponseBackendShard,
},
{
name: "request for earliest height -> 1st shard",
method: "eth_getBlockByNumber",
params: []interface{}{"earliest", false},
expectRoute: service.ResponseBackendShard,
},
{
name: "request for latest height -> pruning",
method: "eth_getBlockByNumber",
params: []interface{}{"latest", false},
expectRoute: service.ResponseBackendPruning,
},
{
name: "request for finalized height -> pruning",
method: "eth_getBlockByNumber",
params: []interface{}{"finalized", false},
expectRoute: service.ResponseBackendPruning,
},
{
name: "request with empty height -> pruning",
method: "eth_getBlockByNumber",
params: []interface{}{nil, false},
expectRoute: service.ResponseBackendPruning,
},
{
name: "request not requiring height -> pruning",
method: "eth_chainId",
params: []interface{}{},
expectRoute: service.ResponseBackendPruning,
},
{
name: "request by hash -> default",
method: "eth_getBlockByHash",
params: []interface{}{"0xe9bd10bc1d62b4406dd1fb3dbf3adb54f640bdb9ebbe3dd6dfc6bcc059275e54", false},
expectRoute: service.ResponseBackendDefault,
},
{
name: "un-parseable (invalid) height -> default",
method: "eth_getBlockByNumber",
params: []interface{}{"not-a-block-tag", false},
expectRoute: service.ResponseBackendDefault,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
startTime := time.Now()
err := rpc.Call(nil, tc.method, tc.params...)
require.NoError(t, err)
if shouldSkipMetrics() {
return
}
metrics := waitForMetricsInWindow(t, 1, databaseClient, startTime, []string{tc.method})
require.Len(t, metrics, 1)
require.Equal(t, tc.method, metrics[0].MethodName)
require.Equal(t, tc.expectRoute, metrics[0].ResponseBackend)
})
}
}
func TestE2ETestCachingMdwWithBlockNumberParam(t *testing.T) {
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
if err != nil {
t.Fatal(err)
}
redisClient := redis.NewClient(&redis.Options{
Addr: redisURL,
Password: redisPassword,
DB: 0,
})
cleanUpRedis(t, redisClient)
expectKeysNum(t, redisClient, 0)
for _, tc := range []struct {
desc string
method string
params []interface{}
keysNum int
}{
{
desc: "test case #1",
method: "eth_getBlockByNumber",
params: []interface{}{"0x1", true},
keysNum: 1,
},
} {
t.Run(tc.desc, func(t *testing.T) {
// test cache MISS and cache HIT scenarios for specified method
// check corresponding values in cachemdw.CacheHeaderKey HTTP header
// check that cached and non-cached responses are equal
// eth_getBlockByNumber - cache MISS
cacheMissResp := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, cacheMissResp.Header[cachemdw.CacheHeaderKey][0])
body1, err := io.ReadAll(cacheMissResp.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body1)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
expectedKey := "local-chain:evm-request:eth_getBlockByNumber:sha256:d08b426164eacf6646fb1817403ec0af5d37869a0f32a01ebfab3096fa4999be"
containsKey(t, redisClient, expectedKey)
// don't check CORs because proxy only force-sets header for cache hits.
// eth_getBlockByNumber - cache HIT
cacheHitResp := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheHitHeaderValue, cacheHitResp.Header[cachemdw.CacheHeaderKey][0])
body2, err := io.ReadAll(cacheHitResp.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body2)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
containsKey(t, redisClient, expectedKey)
// check that response bodies are the same
require.JSONEq(t, string(body1), string(body2), "blocks should be the same")
// check that response headers are the same
equalHeaders(t, cacheMissResp.Header, cacheHitResp.Header)
// check that CORS headers are present for cache hit scenario
require.Equal(t, cacheHitResp.Header[accessControlAllowOriginHeaderName], []string{"*"})
// eth_getBlockByNumber for request with different id - cache HIT
diffIdResp := mkJsonRpcRequest(t, proxyServiceURL, "a string id!", tc.method, tc.params)
require.Equal(t, cachemdw.CacheHitHeaderValue, cacheHitResp.Header[cachemdw.CacheHeaderKey][0])
body3, err := io.ReadAll(diffIdResp.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body3)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
containsKey(t, redisClient, expectedKey)
// check that response bodies are the same, except the id matches the request
expectedRes := strings.Replace(string(body1), "\"id\":1", "\"id\":\"a string id!\"", 1)
require.JSONEq(t, expectedRes, string(body3), "blocks should be the same")
// check that response headers are the same
equalHeaders(t, cacheMissResp.Header, diffIdResp.Header)
// check that CORS headers are present for cache hit scenario
require.Equal(t, diffIdResp.Header[accessControlAllowOriginHeaderName], []string{"*"})
})
}
// test cache MISS and cache HIT scenarios for eth_getBlockByNumber method
// check that cached and non-cached responses are equal
{
// eth_getBlockByNumber - cache MISS
block1, err := client.BlockByNumber(testContext, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 2)
expectedKey := "local-chain:evm-request:eth_getBlockByNumber:sha256:0bfa7c5affc525ed731803c223042b4b1eb16ee7a6a539ae213b47a3ef6e3a7d"
containsKey(t, redisClient, expectedKey)
// eth_getBlockByNumber - cache HIT
block2, err := client.BlockByNumber(testContext, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 2)
containsKey(t, redisClient, expectedKey)
require.Equal(t, block1, block2, "blocks should be the same")
}
cleanUpRedis(t, redisClient)
}
// equalHeaders checks that headers of headersMap1 and headersMap2 are equal
// NOTE: it completely ignores presence/absence of cachemdw.CacheHeaderKey,
// it's done in that way to allow comparison of headers for cache miss and cache hit cases
// also it ignores presence/absence of CORS headers
func equalHeaders(t *testing.T, headersMap1, headersMap2 http.Header) {
containsHeaders(t, headersMap1, headersMap2, "headers 1 do not contain all of headers 2")
containsHeaders(t, headersMap2, headersMap1, "headers 2 do not contain all of headers 1")
}
// containsHeaders checks that headersMap1 contains all headers from headersMap2 and that values for headers are the same
// it completely ignores presence/absence of cachemdw.CacheHeaderKey,
// it's done in that way to allow comparison of headers for cache miss and cache hit cases
// it ignores presence/absence of CORS headers,
// it's because caching layer forcefully sets CORS headers in cache hit scenario, even if they didn't exist before
// we skip Content-Length, because content differences are expected to be verified irrespective of headers
// we skip Date header, because time between requests can change a bit, and we don't want random test fails due to this
// we skip Server header because it's not included in our allow list for headers, consult .env.WHITELISTED_HEADERS for allow list
func containsHeaders(t *testing.T, headersMap1, headersMap2 http.Header, msg string) {
headersToSkip := map[string]struct{}{
cachemdw.CacheHeaderKey: {},
accessControlAllowOriginHeaderName: {},
"Content-Length": {},
"Date": {},
"Server": {},
}
for name, value := range headersMap1 {
_, skip := headersToSkip[name]
if skip {
continue
}
require.Equal(t, value, headersMap2[name], fmt.Sprintf("mismatched %s header: %s", name, msg))
}
}
func TestE2ETestCachingMdwWithBlockNumberParam_Metrics(t *testing.T) {
client, err := ethclient.Dial(proxyServiceURL)
require.NoError(t, err)
db, err := postgres.NewClient(databaseConfig)
require.NoError(t, err)
redisClient := redis.NewClient(&redis.Options{
Addr: redisURL,
Password: redisPassword,
DB: 0,
})
cleanUpRedis(t, redisClient)
expectKeysNum(t, redisClient, 0)
// startTime is a time before first request
startTime := time.Now()
for _, tc := range []struct {
desc string
method string
params []interface{}
keysNum int
}{
{
desc: "test case #1",
method: "eth_getBlockByNumber",
params: []interface{}{"0x1", true},
keysNum: 1,
},
} {
t.Run(tc.desc, func(t *testing.T) {
// test cache MISS and cache HIT scenarios for specified method
// check corresponding values in cachemdw.CacheHeaderKey HTTP header
// check that cached and non-cached responses are equal
// eth_getBlockByNumber - cache MISS
resp1 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp1.Header[cachemdw.CacheHeaderKey][0])
body1, err := io.ReadAll(resp1.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body1)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
expectedKey := "local-chain:evm-request:eth_getBlockByNumber:sha256:d08b426164eacf6646fb1817403ec0af5d37869a0f32a01ebfab3096fa4999be"
containsKey(t, redisClient, expectedKey)
// eth_getBlockByNumber - cache HIT
resp2 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheHitHeaderValue, resp2.Header[cachemdw.CacheHeaderKey][0])
body2, err := io.ReadAll(resp2.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body2)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
containsKey(t, redisClient, expectedKey)
require.JSONEq(t, string(body1), string(body2), "blocks should be the same")
})
}
// test cache MISS and cache HIT scenarios for eth_getBlockByNumber method
// check that cached and non-cached responses are equal
{
// eth_getBlockByNumber - cache MISS
block1, err := client.BlockByNumber(testContext, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 2)
expectedKey := "local-chain:evm-request:eth_getBlockByNumber:sha256:0bfa7c5affc525ed731803c223042b4b1eb16ee7a6a539ae213b47a3ef6e3a7d"
containsKey(t, redisClient, expectedKey)
// eth_getBlockByNumber - cache HIT
block2, err := client.BlockByNumber(testContext, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 2)
containsKey(t, redisClient, expectedKey)
require.Equal(t, block1, block2, "blocks should be the same")
}
if shouldSkipMetrics() {
cleanUpRedis(t, redisClient)
return
}
// get metrics between startTime & now for eth_getBlockByNumber requests
filteredMetrics := waitForMetricsInWindow(t, 4, db, startTime, []string{"eth_getBlockByNumber"})
// we expect 4 metrics, 2 of them are cache hits and two of them are cache misses
require.Len(t, filteredMetrics, 4)
cacheHits := 0
cacheMisses := 0
for _, metric := range filteredMetrics {
if metric.CacheHit {
cacheHits++
} else {
cacheMisses++
}
}
require.Equal(t, 2, cacheHits)
require.Equal(t, 2, cacheMisses)
cleanUpRedis(t, redisClient)
}
func TestE2ETestCachingMdwWithBlockNumberParam_EmptyResult(t *testing.T) {
testRandomAddressHex := "0x6767114FFAA17C6439D7AEA480738B982CE63A02"
testAddress := common.HexToAddress(testRandomAddressHex)
// create api and database clients
client, err := ethclient.Dial(proxyServiceURL)
if err != nil {
t.Fatal(err)
}
redisClient := redis.NewClient(&redis.Options{
Addr: redisURL,
Password: redisPassword,
DB: 0,
})
cleanUpRedis(t, redisClient)
expectKeysNum(t, redisClient, 0)
for _, tc := range []struct {
desc string
method string
params []interface{}
keysNum int
}{
{
desc: "test case #1",
method: "eth_getTransactionCount",
params: []interface{}{testAddress, "0x1"},
keysNum: 0,
},
} {
t.Run(tc.desc, func(t *testing.T) {
// both calls should lead to cache MISS scenario, because empty results aren't cached
// check corresponding values in cachemdw.CacheHeaderKey HTTP header
// check that responses are equal
// eth_getBlockByNumber - cache MISS
resp1 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp1.Header[cachemdw.CacheHeaderKey][0])
body1, err := io.ReadAll(resp1.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body1)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
// eth_getBlockByNumber - cache MISS again (empty results aren't cached)
resp2 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp2.Header[cachemdw.CacheHeaderKey][0])
body2, err := io.ReadAll(resp2.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body2)
require.NoError(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
require.JSONEq(t, string(body1), string(body2), "blocks should be the same")
})
}
// both calls should lead to cache MISS scenario, because empty results aren't cached
// check that responses are equal
{
// eth_getTransactionCount - cache MISS
bal1, err := client.NonceAt(testContext, testAddress, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 0)
// eth_getTransactionCount - cache MISS again (empty results aren't cached)
bal2, err := client.NonceAt(testContext, testAddress, big.NewInt(2))
require.NoError(t, err)
expectKeysNum(t, redisClient, 0)
require.Equal(t, bal1, bal2, "balances should be the same")
}
cleanUpRedis(t, redisClient)
}
func TestE2ETestCachingMdwWithBlockNumberParam_ErrorResult(t *testing.T) {
testRandomAddressHex := "0x6767114FFAA17C6439D7AEA480738B982CE63A02"
testAddress := common.HexToAddress(testRandomAddressHex)
redisClient := redis.NewClient(&redis.Options{
Addr: redisURL,
Password: redisPassword,
DB: 0,
})
cleanUpRedis(t, redisClient)
expectKeysNum(t, redisClient, 0)
for _, tc := range []struct {
desc string
method string
params []interface{}
keysNum int
}{
{
desc: "test case #1",
method: "eth_getBalance",
params: []interface{}{testAddress, "0x3B9ACA00"}, // block # 1000_000_000, which doesn't exist
keysNum: 0,
},
} {
t.Run(tc.desc, func(t *testing.T) {
// both calls should lead to cache MISS scenario, because error results aren't cached
// check corresponding values in cachemdw.CacheHeaderKey HTTP header
//
// cache MISS
resp1 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp1.Header[cachemdw.CacheHeaderKey][0])
body1, err := io.ReadAll(resp1.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body1)
require.Error(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
// cache MISS again (error results aren't cached)
resp2 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp2.Header[cachemdw.CacheHeaderKey][0])
body2, err := io.ReadAll(resp2.Body)
require.NoError(t, err)
err = checkJsonRpcErr(body2)
require.Error(t, err)
expectKeysNum(t, redisClient, tc.keysNum)
})
}
cleanUpRedis(t, redisClient)
}
func TestE2ETestCachingMdwWithBlockNumberParam_FutureBlocks(t *testing.T) {
futureBlockNumber := "0x3B9ACA00" // block # 1000_000_000, which doesn't exist
testRandomAddressHex := "0x6767114FFAA17C6439D7AEA480738B982CE63A02"
testAddress := common.HexToAddress(testRandomAddressHex)
redisClient := redis.NewClient(&redis.Options{
Addr: redisURL,
Password: redisPassword,
DB: 0,
})
cleanUpRedis(t, redisClient)
expectKeysNum(t, redisClient, 0)
for _, tc := range []struct {
desc string
method string
params []interface{}
keysNum int
errorMsg string
}{
{
desc: "test case #1",
method: "eth_getBalance",
params: []interface{}{testAddress, futureBlockNumber},
keysNum: 0,
errorMsg: "height 1000000000 must be less than or equal to the current blockchain height",
},
{
desc: "test case #2",
method: "eth_getStorageAt",
params: []interface{}{testAddress, "0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9", futureBlockNumber},
keysNum: 0,
errorMsg: "invalid height: cannot query with height in the future; please provide a valid height",
},
{
desc: "test case #3",
method: "eth_getTransactionCount",
params: []interface{}{testAddress, futureBlockNumber},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #4",
method: "eth_getBlockTransactionCountByNumber",
params: []interface{}{futureBlockNumber},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #5",
method: "eth_getUncleCountByBlockNumber",
params: []interface{}{futureBlockNumber},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #6",
method: "eth_getCode",
params: []interface{}{testAddress, futureBlockNumber},
keysNum: 0,
errorMsg: "invalid height: cannot query with height in the future; please provide a valid height",
},
{
desc: "test case #7",
method: "eth_getBlockByNumber",
params: []interface{}{futureBlockNumber, false},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #8",
method: "eth_getTransactionByBlockNumberAndIndex",
params: []interface{}{futureBlockNumber, "0x0"},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #9",
method: "eth_getUncleByBlockNumberAndIndex",
params: []interface{}{futureBlockNumber, "0x0"},
keysNum: 0,
errorMsg: "",
},
{
desc: "test case #10",
method: "eth_call",
params: []interface{}{struct{}{}, futureBlockNumber},
keysNum: 0,
errorMsg: "header not found",
},
} {
t.Run(tc.desc, func(t *testing.T) {
// both calls should lead to cache MISS scenario, because error results aren't cached
// check corresponding values in cachemdw.CacheHeaderKey HTTP header
//
// cache MISS
resp1 := mkJsonRpcRequest(t, proxyServiceURL, 1, tc.method, tc.params)
require.Equal(t, cachemdw.CacheMissHeaderValue, resp1.Header[cachemdw.CacheHeaderKey][0])