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// 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 core

import (
    "fmt"
    "math/big"
    "testing"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core/state"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/core/vm"
    "github.com/ethereum/go-ethereum/ethdb"
    "github.com/ethereum/go-ethereum/event"
    "github.com/ethereum/go-ethereum/pow/ezp"
)

func proc() (*BlockProcessor, *BlockChain) {
    db, _ := ethdb.NewMemDatabase()
    var mux event.TypeMux

    WriteTestNetGenesisBlock(db, 0)
    blockchain, err := NewBlockChain(db, thePow(), &mux)
    if err != nil {
        fmt.Println(err)
    }
    return NewBlockProcessor(db, ezp.New(), blockchain, &mux), blockchain
}

func TestNumber(t *testing.T) {
    pow := ezp.New()
    _, chain := proc()

    statedb, _ := state.New(chain.Genesis().Root(), chain.chainDb)
    header := makeHeader(chain.Genesis(), statedb)
    header.Number = big.NewInt(3)
    err := ValidateHeader(pow, header, chain.Genesis().Header(), false, false)
    if err != BlockNumberErr {
        t.Errorf("expected block number error, got %q", err)
    }

    header = makeHeader(chain.Genesis(), statedb)
    err = ValidateHeader(pow, header, chain.Genesis().Header(), false, false)
    if err == BlockNumberErr {
        t.Errorf("didn't expect block number error")
    }
}

func TestPutReceipt(t *testing.T) {
    db, _ := ethdb.NewMemDatabase()

    var addr common.Address
    addr[0] = 1
    var hash common.Hash
    hash[0] = 2

    receipt := new(types.Receipt)
    receipt.SetLogs(vm.Logs{&vm.Log{
        Address:   addr,
        Topics:    []common.Hash{hash},
        Data:      []byte("hi"),
        Number:    42,
        TxHash:    hash,
        TxIndex:   0,
        BlockHash: hash,
        Index:     0,
    }})

    PutReceipts(db, types.Receipts{receipt})
    receipt = GetReceipt(db, common.Hash{})
    if receipt == nil {
        t.Error("expected to get 1 receipt, got none.")
    }
}