github.com/MetalBlockchain/subnet-evm@v0.4.9/trie/database_test.go (about)

     1  // (c) 2020-2021, Ava Labs, Inc.
     2  //
     3  // This file is a derived work, based on the go-ethereum library whose original
     4  // notices appear below.
     5  //
     6  // It is distributed under a license compatible with the licensing terms of the
     7  // original code from which it is derived.
     8  //
     9  // Much love to the original authors for their work.
    10  // **********
    11  // Copyright 2019 The go-ethereum Authors
    12  // This file is part of the go-ethereum library.
    13  //
    14  // The go-ethereum library is free software: you can redistribute it and/or modify
    15  // it under the terms of the GNU Lesser General Public License as published by
    16  // the Free Software Foundation, either version 3 of the License, or
    17  // (at your option) any later version.
    18  //
    19  // The go-ethereum library is distributed in the hope that it will be useful,
    20  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    21  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    22  // GNU Lesser General Public License for more details.
    23  //
    24  // You should have received a copy of the GNU Lesser General Public License
    25  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    26  
    27  package trie
    28  
    29  import (
    30  	"testing"
    31  
    32  	"github.com/MetalBlockchain/subnet-evm/ethdb/memorydb"
    33  	"github.com/ethereum/go-ethereum/common"
    34  )
    35  
    36  // Tests that the trie database returns a missing trie node error if attempting
    37  // to retrieve the meta root.
    38  func TestDatabaseMetarootFetch(t *testing.T) {
    39  	db := NewDatabase(memorydb.New())
    40  	if _, err := db.RawNode(common.Hash{}); err == nil {
    41  		t.Fatalf("metaroot retrieval succeeded")
    42  	}
    43  }