From d779f5aead9e91b97c8d05136ddb7a6bd84f4276 Mon Sep 17 00:00:00 2001
From: Jimmy Hu <jimmy.hu@dexon.org>
Date: Mon, 25 Feb 2019 18:27:34 +0800
Subject: core: Fixed gas price (#205)

* core/vm: update abi
* core/vm: add MinGasPrice to gov
* params: Add MinGasPrice to Config
* dex: SuggestPrice from Governance
* test: add minGasPrice to genesis.json
* core: check underpriced tx
* dex: verify with gas price
---
 dex/app_test.go | 37 +++++++++++++++++++++++++++++++------
 1 file changed, 31 insertions(+), 6 deletions(-)

(limited to 'dex/app_test.go')

diff --git a/dex/app_test.go b/dex/app_test.go
index 09c61c11c..73d952f31 100644
--- a/dex/app_test.go
+++ b/dex/app_test.go
@@ -234,7 +234,7 @@ func TestVerifyBlock(t *testing.T) {
 		common.BytesToAddress([]byte{9}),
 		big.NewInt(50000000000000001),
 		params.TxGas,
-		big.NewInt(1),
+		big.NewInt(10),
 		nil)
 	tx, err = types.SignTx(tx, signer, key)
 	if err != nil {
@@ -269,7 +269,7 @@ func TestVerifyBlock(t *testing.T) {
 		common.BytesToAddress([]byte{9}),
 		big.NewInt(1),
 		params.TxGas,
-		big.NewInt(1),
+		big.NewInt(10),
 		make([]byte, 1))
 	tx, err = types.SignTx(tx, signer, key)
 	if err != nil {
@@ -304,7 +304,7 @@ func TestVerifyBlock(t *testing.T) {
 		common.BytesToAddress([]byte{9}),
 		big.NewInt(1),
 		params.TxGas,
-		big.NewInt(1),
+		big.NewInt(10),
 		make([]byte, 1))
 	tx1, err = types.SignTx(tx, signer, key)
 	if err != nil {
@@ -317,7 +317,7 @@ func TestVerifyBlock(t *testing.T) {
 		common.BytesToAddress([]byte{9}),
 		big.NewInt(1),
 		params.TxGas,
-		big.NewInt(1),
+		big.NewInt(10),
 		make([]byte, 1))
 	tx2, err = types.SignTx(tx, signer, key)
 	if err != nil {
@@ -334,6 +334,30 @@ func TestVerifyBlock(t *testing.T) {
 	if status != coreTypes.VerifyInvalidBlock {
 		t.Fatalf("verify fail expect invalid block but get %v", status)
 	}
+
+	// Invalid gas price.
+	tx = types.NewTransaction(
+		0,
+		common.BytesToAddress([]byte{9}),
+		big.NewInt(1),
+		params.TxGas,
+		big.NewInt(5),
+		make([]byte, 1))
+	tx, err = types.SignTx(tx, signer, key)
+	if err != nil {
+		return
+	}
+	block.Payload, err = rlp.EncodeToBytes(types.Transactions{tx})
+	if err != nil {
+		return
+	}
+
+	// Expect invalid block.
+	status = dex.app.VerifyBlock(block)
+	if status != coreTypes.VerifyInvalidBlock {
+		t.Fatalf("verify fail expect invalid block but get %v", status)
+	}
+
 }
 
 func TestBlockConfirmed(t *testing.T) {
@@ -489,6 +513,7 @@ func newTestDexonWithGenesis(allocKey *ecdsa.PrivateKey) (*Dexon, error) {
 			PublicKey: crypto.FromECDSAPub(&key.PublicKey),
 		},
 	}
+	genesis.Config.Dexcon.MinGasPrice = big.NewInt(10)
 	chainConfig, _, err := core.SetupGenesisBlock(db, genesis)
 	if err != nil {
 		return nil, err
@@ -530,7 +555,7 @@ func addTx(dex *Dexon, nonce int, signer types.Signer, key *ecdsa.PrivateKey) (
 		common.BytesToAddress([]byte{9}),
 		big.NewInt(int64(nonce*1)),
 		params.TxGas,
-		big.NewInt(1),
+		big.NewInt(10),
 		nil)
 	tx, err := types.SignTx(tx, signer, key)
 	if err != nil {
@@ -638,7 +663,7 @@ func prepareDataWithoutTxPool(dex *Dexon, key *ecdsa.PrivateKey, startNonce, txN
 			common.BytesToAddress([]byte{9}),
 			big.NewInt(int64(n*1)),
 			params.TxGas,
-			big.NewInt(1),
+			big.NewInt(10),
 			nil)
 		tx, err = types.SignTx(tx, signer, key)
 		if err != nil {
-- 
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