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core/statedb: add testcase for copystorage

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This commit is contained in:
Delweng Zheng 2018-09-29 17:25:17 +08:00
parent d9e324a331
commit efa11fe534
1 changed files with 38 additions and 0 deletions
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38
core/state/statedb_test.go
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@ -435,3 +435,41 @@ func TestCopyOfCopy(t *testing.T) {
t.Fatalf("2nd copy fail, expected 42, got %v", got)
}
}
// TestCopyStorage tests that the preimages of an account's storage should be saved to trie between
// the copy of StateDB
// See https://github.com/ethereum/go-ethereum/pull/17785
func TestCopyStorage(t *testing.T) {
db := NewDatabase(ethdb.NewMemDatabase())
state1, _ := New(common.Hash{}, db)
stateobjaddr := common.HexToAddress("zwb")
storage := map[common.Hash]common.Hash{
common.BytesToHash([]byte{0}): common.BytesToHash([]byte{100}),
common.BytesToHash([]byte{1}): common.BytesToHash([]byte{101}),
common.BytesToHash([]byte{2}): common.BytesToHash([]byte{102}),
}
for k, v := range storage {
state1.SetState(stateobjaddr, k, v)
}
// DO what as the miner does
state1.Finalise(false)
state2 := state1.Copy()
state2.IntermediateRoot(false)
state2.Commit(false)
dump := state2.RawDump()
addr := strings.TrimPrefix(stateobjaddr.Hex(), "0x")
gotStorage := dump.Accounts[addr].Storage
if len(gotStorage) != len(storage) {
t.Fatalf("the number of storage not the same, expected(%d), got(%d)", len(storage), len(gotStorage))
}
for k, v := range gotStorage {
if want, ok := storage[common.HexToHash(k)]; !ok || want != common.HexToHash(v) {
t.Fatalf("dump storage mismatched:\ngot: %s\nwant: %s\n", v, want)
}
}
}