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Add test flags and clear cache between tests to fix deterministic failures. #124

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Sep 23, 2023
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6 changes: 6 additions & 0 deletions eth/tracers/blocknative/tracer.go
Original file line number Diff line number Diff line change
Expand Up @@ -242,6 +242,12 @@ func finalizeCallFrame(call *CallFrame, output []byte, gasUsed uint64, err error
call.Output = bytesToHex(output)
}

// EmptyCache is for testing purposes. It clears the global cache so tests don't
// interfere with each other.
func EmptyCache() {
decoderCache = decoder.NewCaches()
}

//
// Unused interface methods.
//
Expand Down
78 changes: 59 additions & 19 deletions eth/tracers/internal/tracetest/blocknative_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package tracetest

import (
"encoding/json"
"flag"
"fmt"
"math/big"
"os"
Expand All @@ -23,6 +24,16 @@ import (
"github.com/ethereum/go-ethereum/tests"
)

var (
testFlagLogLevl = flag.String("loglevel", "info", "Log level to use")
testFlagFile = flag.String("file", "", "Name of the file to run the test for")
)

func TestMain(m *testing.M) {
flag.Parse()
os.Exit(m.Run())
}

type blocknativeTracerTest struct {
Genesis *core.Genesis `json:"genesis"`
Context *callContext `json:"context"`
Expand All @@ -43,9 +54,30 @@ type blocknativeTracerTest struct {
}

func TestBlocknativeTracer(t *testing.T) {
log.Root().SetHandler(log.StreamHandler(os.Stdout, log.TerminalFormat(true)))
testBlocknativeTracer("blocknative", t)
testBlocknativeTracer("blocknative/with_decoding", t)
setLogging(t)

testsCases, err := loadTestTxs("blocknative")
if err != nil {
t.Fatal(err)
}
decodingTestsCases, err := loadTestTxs("blocknative/with_decoding")
if err != nil {
t.Fatal(err)
}
testsCases = append(testsCases, decodingTestsCases...)

for _, test := range testsCases {
if *testFlagFile != "" {
a := strings.ToLower(*testFlagFile)
b := strings.ToLower(test.name)
if a != b {
continue
}
}
t.Run(test.name, func(t *testing.T) {
executeTestCase(test, t, true)
})
}
}

func BenchmarkBlocknativeTracerWithoutDecoding(b *testing.B) {
Expand Down Expand Up @@ -139,17 +171,17 @@ func benchmarkBlocknativeTracer(b *testing.B, decode bool, dirPaths ...string) {
}
}

func testBlocknativeTracer(dirPath string, t *testing.T) {
testsCases, err := loadTestTxs(dirPath)
if err != nil {
t.Fatal(err)
}

for _, test := range testsCases {
t.Run(test.name, func(t *testing.T) {
executeTestCase(test, t, true)
})
func setLogging(t testing.TB) {
logHandler := log.StreamHandler(os.Stdout, log.TerminalFormat(true))
level := log.LvlDebug
if *testFlagLogLevl != "" {
var err error
level, err = log.LvlFromString(*testFlagLogLevl)
if err != nil {
t.Fatal(err)
}
}
log.Root().SetHandler(log.LvlFilterHandler(level, logHandler))
}

func loadTestTxs(dirPath string) ([]*blocknativeTracerTest, error) {
Expand Down Expand Up @@ -213,7 +245,14 @@ func loadTestTxs(dirPath string) ([]*blocknativeTracerTest, error) {
return nil, err
}

test.name = camel(strings.TrimSuffix(file.Name(), ".json"))
name := strings.TrimPrefix(dirPath, "blocknative")
name = strings.TrimPrefix(name, "/")
if name != "" {
name = name + "/"
}
name = name + camel(strings.TrimSuffix(file.Name(), ".json"))

test.name = name
test.evm = evm
test.tx = tx
test.msg = msg
Expand All @@ -225,6 +264,8 @@ func loadTestTxs(dirPath string) ([]*blocknativeTracerTest, error) {
}

func executeTestCase(test *blocknativeTracerTest, t testing.TB, checkResult bool) {
blocknative.EmptyCache()

st := core.NewStateTransition(test.evm, test.msg, new(core.GasPool).AddGas(test.tx.Gas()))
if _, err := st.TransitionDb(); err != nil {
t.Fatalf("failed to execute transaction: %v", err)
Expand All @@ -241,15 +282,14 @@ func executeTestCase(test *blocknativeTracerTest, t testing.TB, checkResult bool

if checkResult && !tracesEqual(ret, test.Result) {
// Below are prints to show differences if we fail, can always just check against the specific test json files too!
fmt.Println("Trace return: ")
fmt.Println("Got Trace:")
x, _ := json.Marshal(ret)
// //x, _ := json.MarshalIndent(ret, "", " ")
// y, _ := json.Marshal(test.Result)
fmt.Println(string(x))
fmt.Println("test.Result")

// fmt.Println("Expected Trace:")
// y, _ := json.Marshal(test.Result)
// fmt.Println(string(y))
t.Fatal("traces mismatch")
// t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, test.Result)
}
}

Expand Down