// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package tests

import (
	"testing"
)

func TestBlockchain(t *testing.T) {
	t.Parallel()

	bt := new(testMatcher)
	// General state tests are 'exported' as blockchain tests, but we can run them natively.
	bt.skipLoad(`^GeneralStateTests/`)
	// Skip random failures due to selfish mining test
	bt.skipLoad(`.*bcForgedTest/bcForkUncle\.json`)

	// Slow tests
	bt.slow(`.*bcExploitTest/DelegateCallSpam.json`)
	bt.slow(`.*bcExploitTest/ShanghaiLove.json`)
	bt.slow(`.*bcExploitTest/SuicideIssue.json`)
	bt.slow(`.*/bcForkStressTest/`)
	bt.slow(`.*/bcGasPricerTest/RPC_API_Test.json`)
	bt.slow(`.*/bcWalletTest/`)

	// Very slow test
	bt.skipLoad(`.*/stTimeConsuming/.*`)

	// test takes a lot for time and goes easily OOM because of sha3 calculation on a huge range,
	// using 4.6 TGas
	bt.skipLoad(`.*randomStatetest94.json.*`)

	bt.walk(t, blockTestDir, func(t *testing.T, name string, test *BlockTest) {
		if test.json.Network == "Berlin" {
			// Our current berlin-tests were generated using YOLOv2 rules, hence a lot of them
			// fail when berlin is defined as YOLOv3. We skip those, until they've been
			// regenerated and re-imported
			// TODO (@holiman)
			return
		}
		if err := bt.checkFailure(t, name+"/trie", test.Run(false)); err != nil {
			t.Errorf("test without snapshotter failed: %v", err)
		}
		if err := bt.checkFailure(t, name+"/snap", test.Run(true)); err != nil {
			t.Errorf("test with snapshotter failed: %v", err)
		}
	})
	// There is also a LegacyTests folder, containing blockchain tests generated
	// prior to Istanbul. However, they are all derived from GeneralStateTests,
	// which run natively, so there's no reason to run them here.
}