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path: root/core/types/block_test.go
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// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core 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 dexon-consensus-core 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 dexon-consensus-core library. If not, see
// <http://www.gnu.org/licenses/>.

package types

import (
    "sort"
    "testing"

    "github.com/dexon-foundation/dexon-consensus-core/common"
    "github.com/stretchr/testify/suite"
)

type BlockTestSuite struct {
    suite.Suite
}

func (s *BlockTestSuite) TestSortByHash() {
    hash := common.Hash{}
    copy(hash[:], "aaaaaa")
    b0 := &Block{Hash: hash}
    copy(hash[:], "bbbbbb")
    b1 := &Block{Hash: hash}
    copy(hash[:], "cccccc")
    b2 := &Block{Hash: hash}
    copy(hash[:], "dddddd")
    b3 := &Block{Hash: hash}

    blocks := []*Block{b3, b2, b1, b0}
    sort.Sort(ByHash(blocks))
    s.Equal(blocks[0].Hash, b0.Hash)
    s.Equal(blocks[1].Hash, b1.Hash)
    s.Equal(blocks[2].Hash, b2.Hash)
    s.Equal(blocks[3].Hash, b3.Hash)
}

func (s *BlockTestSuite) TestSortByHeight() {
    b0 := &Block{Height: 0}
    b1 := &Block{Height: 1}
    b2 := &Block{Height: 2}
    b3 := &Block{Height: 3}

    blocks := []*Block{b3, b2, b1, b0}
    sort.Sort(ByHeight(blocks))
    s.Equal(blocks[0].Hash, b0.Hash)
    s.Equal(blocks[1].Hash, b1.Hash)
    s.Equal(blocks[2].Hash, b2.Hash)
    s.Equal(blocks[3].Hash, b3.Hash)
}

func (s *BlockTestSuite) TestGenesisBlock() {
    b0 := &Block{
        Height:     0,
        ParentHash: common.Hash{},
    }
    s.True(b0.IsGenesis())
    b1 := &Block{
        Height:     1,
        ParentHash: common.Hash{},
    }
    s.False(b1.IsGenesis())
    b2 := &Block{
        Height:     0,
        ParentHash: common.NewRandomHash(),
    }
    s.False(b2.IsGenesis())
}

func TestBlock(t *testing.T) {
    suite.Run(t, new(BlockTestSuite))
}