add bundle uuid hash test

Author: TymKh

flashbotsextra/database_test.go

@@ -173,3 +173,49 @@ func TestDatabaseBlockInsertion(t *testing.T) {
 		Inserted: usedSbundle.Success,
 	}, usedSbundles[0])
 }
+
+func simpleTx(nonce uint64) *types.Transaction {
+	value := big.NewInt(1000000000000000) // in wei (0.001 eth)
+	gasLimit := uint64(21000)             // in units
+	gasPrice := big.NewInt(1000000000)
+
+	toAddress := common.HexToAddress("0x7777492a736CD894Cb12DFE5e944047499AEF7a0")
+	var data []byte
+	return types.NewTx(&types.LegacyTx{
+		Nonce:    nonce,
+		To:       &toAddress,
+		Value:    value,
+		Gas:      gasLimit,
+		GasPrice: gasPrice,
+		Data:     data,
+	})
+}
+
+func TestBundleUUIDHash(t *testing.T) {
+	tx1 := simpleTx(1)
+	tx2 := simpleTx(2)
+	bts1, err := tx1.MarshalBinary()
+	require.Nil(t, err)
+	bts2, err := tx2.MarshalBinary()
+	require.Nil(t, err)
+	_, _ = bts1, bts2
+	t.Run("no reverts", func(t *testing.T) {
+		b := types.MevBundle{
+			BlockNumber: big.NewInt(1),
+			Hash:        common.HexToHash("0x135a7f22459b2102d51de2d6704512a03e1e2d2059c34bcbb659f4ba65e9f92c"),
+		}
+
+		require.Equal(t, "82624e95-741e-5a60-9198-b2f7b2ed973f", b.ComputeUUID().String())
+	})
+	t.Run("one revert", func(t *testing.T) {
+		b := types.MevBundle{
+			BlockNumber: big.NewInt(1),
+			Hash:        common.HexToHash("0x135a7f22459b2102d51de2d6704512a03e1e2d2059c34bcbb659f4ba65e9f92c"),
+			RevertingTxHashes: []common.Hash{
+				tx1.Hash(),
+			},
+		}
+
+		require.Equal(t, "19f6e9a2-04a1-5616-9bb3-5c9f81653e4f", b.ComputeUUID().String())
+	})
+}