go-ethereum/params/hooks.libevm_test.go
Arran Schlosberg dc619990f5
doc: licensing of libevm additions and modifications (#34)
* doc: licensing of libevm extensions and modifications

* chore: add license headers via linter

* chore: `golangci-lint run --fix`

* chore: `golangci-lint run --fix`

* chore: fix `libevm/libevm.go` header

* chore: `s/extensions/additions/`

* chore: add missing headers
2024-09-19 21:38:26 +00:00

78 lines
2.7 KiB
Go

// Copyright 2024 the libevm authors.
//
// The libevm additions to go-ethereum are free software: you can redistribute
// them and/or modify them 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 libevm additions are distributed in the hope that they 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 params_test
import (
"errors"
"fmt"
"math/big"
"testing"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/libevm/ethtest"
"github.com/ethereum/go-ethereum/libevm/hookstest"
"github.com/ethereum/go-ethereum/params"
)
func TestChainConfigHooks_Description(t *testing.T) {
const suffix = "Arran was here"
c := new(params.ChainConfig)
want := c.Description() + suffix
hooks := &hookstest.Stub{
DescriptionSuffix: "Arran was here",
}
hooks.Register(t).SetOnChainConfig(c, hooks)
require.Equal(t, want, c.Description(), "ChainConfigHooks.Description() is appended to non-extras equivalent")
}
func TestChainConfigHooks_CheckConfigForkOrder(t *testing.T) {
err := errors.New("uh oh")
c := new(params.ChainConfig)
require.NoError(t, c.CheckConfigForkOrder(), "CheckConfigForkOrder() with no hooks")
hooks := &hookstest.Stub{
CheckConfigForkOrderFn: func() error { return err },
}
hooks.Register(t).SetOnChainConfig(c, hooks)
require.Equal(t, err, c.CheckConfigForkOrder(), "CheckConfigForkOrder() with error-producing hook")
}
func TestChainConfigHooks_CheckConfigCompatible(t *testing.T) {
rng := ethtest.NewPseudoRand(1234567890)
newcfg := &params.ChainConfig{
ChainID: rng.BigUint64(),
}
headNumber := rng.Uint64()
headTimestamp := rng.Uint64()
c := new(params.ChainConfig)
require.Nil(t, c.CheckCompatible(newcfg, headNumber, headTimestamp), "CheckCompatible() with no hooks")
makeCompatErr := func(newcfg *params.ChainConfig, headNumber *big.Int, headTimestamp uint64) *params.ConfigCompatError {
return &params.ConfigCompatError{
What: fmt.Sprintf("ChainID: %v Head #: %v Head Time: %d", newcfg.ChainID, headNumber, headTimestamp),
}
}
hooks := &hookstest.Stub{
CheckConfigCompatibleFn: makeCompatErr,
}
hooks.Register(t).SetOnChainConfig(c, hooks)
want := makeCompatErr(newcfg, new(big.Int).SetUint64(headNumber), headTimestamp)
require.Equal(t, want, c.CheckCompatible(newcfg, headNumber, headTimestamp), "CheckCompatible() with error-producing hook")
}