github.com/aigarnetwork/aigar@v0.0.0-20191115204914-d59a6eb70f8e/trie/database_test.go (about)

     1  //  Copyright 2018 The go-ethereum Authors
     2  //  Copyright 2019 The go-aigar Authors
     3  //  This file is part of the go-aigar library.
     4  //
     5  //  The go-aigar library is free software: you can redistribute it and/or modify
     6  //  it under the terms of the GNU Lesser General Public License as published by
     7  //  the Free Software Foundation, either version 3 of the License, or
     8  //  (at your option) any later version.
     9  //
    10  //  The go-aigar library is distributed in the hope that it will be useful,
    11  //  but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  //  GNU Lesser General Public License for more details.
    14  //
    15  //  You should have received a copy of the GNU Lesser General Public License
    16  //  along with the go-aigar library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package trie
    19  
    20  import (
    21  	"testing"
    22  
    23  	"github.com/AigarNetwork/aigar/common"
    24  	"github.com/AigarNetwork/aigar/ethdb/memorydb"
    25  )
    26  
    27  // Tests that the trie database returns a missing trie node error if attempting
    28  // to retrieve the meta root.
    29  func TestDatabaseMetarootFetch(t *testing.T) {
    30  	db := NewDatabase(memorydb.New())
    31  	if _, err := db.Node(common.Hash{}); err == nil {
    32  		t.Fatalf("metaroot retrieval succeeded")
    33  	}
    34  }