test/fuzz: add default testdata for fuzz tests

test/fuzz/mempool/v0/checktx.go

@@ -1,4 +1,4 @@
-package checktx
+package v0
 
 import (
 	"context"

test/fuzz/mempool/v0/fuzz_test.go

@@ -0,0 +1,33 @@
+package v0_test
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	mempoolv0 "github.com/tendermint/tendermint/test/fuzz/mempool/v0"
+)
+
+const testdataCasesDir = "testdata/cases"
+
+func TestMempoolTestdataCases(t *testing.T) {
+	entries, err := os.ReadDir(testdataCasesDir)
+	require.NoError(t, err)
+
+	for _, e := range entries {
+		entry := e
+		t.Run(entry.Name(), func(t *testing.T) {
+			defer func() {
+				r := recover()
+				require.Nilf(t, r, "testdata/cases test panic")
+			}()
+			f, err := os.Open(filepath.Join(testdataCasesDir, entry.Name()))
+			require.NoError(t, err)
+			input, err := ioutil.ReadAll(f)
+			require.NoError(t, err)
+			mempoolv0.Fuzz(input)
+		})
+	}
+}

test/fuzz/mempool/v1/checktx.go

@@ -0,0 +1,37 @@
+package v1
+
+import (
+	"context"
+
+	"github.com/tendermint/tendermint/abci/example/kvstore"
+	"github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/internal/mempool"
+	mempoolv1 "github.com/tendermint/tendermint/internal/mempool/v0"
+	"github.com/tendermint/tendermint/proxy"
+)
+
+var mp mempool.Mempool
+
+func init() {
+	app := kvstore.NewApplication()
+	cc := proxy.NewLocalClientCreator(app)
+	appConnMem, _ := cc.NewABCIClient()
+	err := appConnMem.Start()
+	if err != nil {
+		panic(err)
+	}
+
+	cfg := config.DefaultMempoolConfig()
+	cfg.Broadcast = false
+
+	mp = mempoolv1.NewCListMempool(cfg, appConnMem, 0)
+}
+
+func Fuzz(data []byte) int {
+	err := mp.CheckTx(context.Background(), data, nil, mempool.TxInfo{})
+	if err != nil {
+		return 0
+	}
+
+	return 1
+}

test/fuzz/mempool/v1/fuzz_test.go

@@ -0,0 +1,33 @@
+package v1_test
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	mempoolv1 "github.com/tendermint/tendermint/test/fuzz/mempool/v1"
+)
+
+const testdataCasesDir = "testdata/cases"
+
+func TestMempoolTestdataCases(t *testing.T) {
+	entries, err := os.ReadDir(testdataCasesDir)
+	require.NoError(t, err)
+
+	for _, e := range entries {
+		entry := e
+		t.Run(entry.Name(), func(t *testing.T) {
+			defer func() {
+				r := recover()
+				require.Nilf(t, r, "testdata/cases test panic")
+			}()
+			f, err := os.Open(filepath.Join(testdataCasesDir, entry.Name()))
+			require.NoError(t, err)
+			input, err := ioutil.ReadAll(f)
+			require.NoError(t, err)
+			mempoolv1.Fuzz(input)
+		})
+	}
+}