mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-06-27 00:46:18 +00:00
b4a7f35411
This adds a test logger for libevm, that treats errors as they _should_
be treated.
- Logs at `log.LevelWarn` and above trigger `t.Errorf()`, causing tests
to fail
- Critical logs fail immediately: Logs at `log.LevelCrit` trigger
`t.Fatalf()`
- Info/debug logs pass through: Lower severity logs use `t.Logf()` for
informational output
You can use the logger like this:
```go
import (
"github.com/ava-labs/libevm/ethtest"
"github.com/ava-labs/libevm/log"
)
func TestSomething(t *testing.T) {
logger := log.NewLogger(ethtest.NewTBLogHandler(t, log.LevelDebug))
// Or to set globally
log.SetDefault(log.NewLogger(ethtest.NewTBLogHandler(t, log.LevelDebug))
}
```
I was thinking about adding tests to show this works, but it seemed
silly to test a testing utility.
---------
Signed-off-by: Jonathan Oppenheimer <147infiniti@gmail.com>
Co-authored-by: Arran Schlosberg <519948+ARR4N@users.noreply.github.com>
57 lines
2 KiB
Go
57 lines
2 KiB
Go
// Copyright 2024-2025 the libevm authors.
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//
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// The libevm additions to go-ethereum are free software: you can redistribute
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// them and/or modify them under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// The libevm additions are distributed in the hope that they will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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// General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see
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// <http://www.gnu.org/licenses/>.
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package hookstest
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import (
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/ava-labs/libevm/common"
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"github.com/ava-labs/libevm/core"
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"github.com/ava-labs/libevm/core/rawdb"
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"github.com/ava-labs/libevm/libevm/ethtest"
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"github.com/ava-labs/libevm/log"
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"github.com/ava-labs/libevm/params"
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)
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func TestSetupGenesisBlockWithStub(t *testing.T) {
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// The original bug was due to [Stub] resulting in an error when being
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// marshalled to JSON for [rawdb.WriteChainConfig], which resulted in
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// [log.Crit] being called.
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l := log.Root()
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t.Cleanup(func() { log.SetDefault(l) })
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log.SetDefault(log.NewLogger(ethtest.NewTBLogHandler(t, log.LevelDebug)))
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stub := &Stub{}
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extras := stub.Register(t)
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config := ¶ms.ChainConfig{}
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extras.ChainConfig.Set(config, stub)
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gen := &core.Genesis{
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Config: config,
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}
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db, cache, _ := ethtest.NewEmptyStateDB(t)
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// An eventual call to this function was the root cause.
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rawdb.WriteChainConfig(db, common.Hash{1, 2, 3, 4, 5, 6}, config)
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// Also check calls to this function, which was the desired behaviour.
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_, _, err := core.SetupGenesisBlock(db, cache.TrieDB(), gen)
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require.NoError(t, err, "core.SetupGenesisBlock([%T with %T as registered %T extra])", gen, stub, config)
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}
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