40 lines
992 B
Go
40 lines
992 B
Go
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package internal
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import (
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"testing"
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"github.com/cerc-io/eth-testing/chaindata/small2"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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var (
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FixtureNodePaths = small2.Block1_StateNodePaths
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FixtureLeafKeys = small2.Block1_StateNodeLeafKeys
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)
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func OpenFixtureTrie(t *testing.T, height uint64) (state.Trie, ethdb.Database) {
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data := small2.ChainData
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kvdb, ldberr := rawdb.NewLevelDBDatabase(data.ChainData, 1024, 256, t.Name(), true)
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if ldberr != nil {
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t.Fatal(ldberr)
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}
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edb, err := rawdb.NewDatabaseWithFreezer(kvdb, data.Ancient, t.Name(), true)
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if err != nil {
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t.Fatal(err)
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}
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hash := rawdb.ReadCanonicalHash(edb, height)
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header := rawdb.ReadHeader(edb, hash, height)
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if header == nil {
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t.Fatalf("unable to read canonical header at height %d", height)
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}
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sdb := state.NewDatabase(edb)
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tree, err := sdb.OpenTrie(header.Root)
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if err != nil {
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t.Fatal(err)
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}
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return tree, edb
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}
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