core/vm/jump_table_test.go


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// Copyright 2016 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 vm

import (
    "math/big"
    "testing"

    "github.com/ethereum/go-ethereum/params"
)

func TestInit(t *testing.T) {
    jumpTable := newJumpTable(&params.ChainConfig{HomesteadBlock: big.NewInt(1)}, big.NewInt(0))
    if jumpTable[DELEGATECALL].valid {
        t.Error("Expected DELEGATECALL not to be present")
    }

    for _, n := range []int64{1, 2, 100} {
        jumpTable := newJumpTable(&params.ChainConfig{HomesteadBlock: big.NewInt(1)}, big.NewInt(n))
        if !jumpTable[DELEGATECALL].valid {
            t.Error("Expected DELEGATECALL to be present for block", n)
        }
    }
}