path: root/core/state/managed_state_test.go

package state

import (
    "testing"

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

var addr = common.BytesToAddress([]byte("test"))

func create() (*ManagedState, *account) {
    ms := ManageState(&StateDB{stateObjects: make(map[string]*StateObject)})
    so := &StateObject{address: addr, nonce: 100}
    ms.StateDB.stateObjects[addr.Str()] = so
    ms.accounts[addr.Str()] = newAccount(so)

    return ms, ms.accounts[addr.Str()]
}

func TestNewNonce(t *testing.T) {
    ms, _ := create()

    nonce := ms.NewNonce(addr)
    if nonce != 100 {
        t.Error("expected nonce 100. got", nonce)
    }

    nonce = ms.NewNonce(addr)
    if nonce != 101 {
        t.Error("expected nonce 101. got", nonce)
    }
}

func TestRemove(t *testing.T) {
    ms, account := create()

    nn := make([]bool, 10)
    for i, _ := range nn {
        nn[i] = true
    }
    account.nonces = append(account.nonces, nn...)

    i := uint64(5)
    ms.RemoveNonce(addr, account.nstart+i)
    if len(account.nonces) != 5 {
        t.Error("expected", i, "'th index to be false")
    }
}

func TestReuse(t *testing.T) {
    ms, account := create()

    nn := make([]bool, 10)
    for i, _ := range nn {
        nn[i] = true
    }
    account.nonces = append(account.nonces, nn...)

    i := uint64(5)
    ms.RemoveNonce(addr, account.nstart+i)
    nonce := ms.NewNonce(addr)
    if nonce != 105 {
        t.Error("expected nonce to be 105. got", nonce)
    }
}

func TestRemoteNonceChange(t *testing.T) {
    ms, account := create()
    nn := make([]bool, 10)
    for i, _ := range nn {
        nn[i] = true
    }
    account.nonces = append(account.nonces, nn...)
    nonce := ms.NewNonce(addr)

    ms.StateDB.stateObjects[addr.Str()].nonce = 200
    nonce = ms.NewNonce(addr)
    if nonce != 200 {
        t.Error("expected nonce after remote update to be", 201, "got", nonce)
    }
    ms.NewNonce(addr)
    ms.NewNonce(addr)
    ms.NewNonce(addr)
    ms.StateDB.stateObjects[addr.Str()].nonce = 200
    nonce = ms.NewNonce(addr)
    if nonce != 204 {
        t.Error("expected nonce after remote update to be", 201, "got", nonce)
    }
}