mirror of https://github.com/status-im/op-geth.git
31 lines
785 B
Go
31 lines
785 B
Go
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package ethchain
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import (
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"github.com/ethereum/eth-go/ethdb"
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"github.com/ethereum/eth-go/ethutil"
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"testing"
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)
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func TestSnapshot(t *testing.T) {
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ethutil.ReadConfig("", ethutil.LogStd, "")
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db, _ := ethdb.NewMemDatabase()
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state := NewState(ethutil.NewTrie(db, ""))
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stateObject := NewContract([]byte("aa"), ethutil.Big1, ZeroHash256)
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state.UpdateStateObject(stateObject)
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stateObject.SetStorage(ethutil.Big("0"), ethutil.NewValue(42))
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snapshot := state.Snapshot()
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stateObject = state.GetStateObject([]byte("aa"))
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stateObject.SetStorage(ethutil.Big("0"), ethutil.NewValue(43))
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state.Revert(snapshot)
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stateObject = state.GetStateObject([]byte("aa"))
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if !stateObject.GetStorage(ethutil.Big("0")).Cmp(ethutil.NewValue(42)) {
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t.Error("Expected storage 0 to be 42")
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}
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}
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