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Merge pull request #1508 from nspcc-dev/core/check_witness_tests

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core: add CheckWitness tests
This commit is contained in:
Roman Khimov 2020-10-27 15:56:35 +03:00 committed by GitHub
commit 0eb4ad8564
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 199 additions and 3 deletions
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3
pkg/core/interop/runtime/witness.go
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@ -25,9 +25,6 @@ func CheckHashedWitness(ic *interop.Context, hash util.Uint160) (bool, error) {
return checkScope(ic.DAO, tx, ic.VM, hash)
}
if !ic.VM.Context().GetCallFlags().Has(smartcontract.AllowStates) {
return false, errors.New("missing AllowStates call flag")
}
return false, errors.New("script container is not a transaction")
}

199
pkg/core/interop_system_test.go
View file

@ -16,6 +16,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/internal/random"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
@ -514,6 +515,16 @@ func loadScript(ic *interop.Context, script []byte, args ...interface{}) {
ic.VM = v
}
func loadScriptWithHashAndFlags(ic *interop.Context, script []byte, hash util.Uint160, f smartcontract.CallFlag, args ...interface{}) {
v := vm.New()
v.LoadScriptWithHash(script, hash, f)
for i := range args {
v.Estack().PushVal(args[i])
}
v.GasLimit = -1
ic.VM = v
}
func TestContractCall(t *testing.T) {
_, ic, bc := createVM(t)
defer bc.Close()
@ -1093,3 +1104,191 @@ func TestSyscallCallback(t *testing.T) {
})
})
}
func TestRuntimeCheckWitness(t *testing.T) {
_, ic, bc := createVM(t)
defer bc.Close()
script := []byte{byte(opcode.RET)}
scriptHash := hash.Hash160(script)
check := func(t *testing.T, ic *interop.Context, arg interface{}, shouldFail bool, expected ...bool) {
ic.VM.Estack().PushVal(arg)
err := runtime.CheckWitness(ic)
if shouldFail {
require.Error(t, err)
} else {
require.NoError(t, err)
require.NotNil(t, expected)
actual, ok := ic.VM.Estack().Pop().Value().(bool)
require.True(t, ok)
require.Equal(t, expected[0], actual)
}
}
t.Run("error", func(t *testing.T) {
t.Run("not a hash or key", func(t *testing.T) {
check(t, ic, []byte{1, 2, 3}, true)
})
t.Run("script container is not a transaction", func(t *testing.T) {
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
check(t, ic, random.Uint160().BytesBE(), true)
})
t.Run("check scope", func(t *testing.T) {
t.Run("CustomGroups, missing AllowStates flag", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{},
},
},
}
ic.Container = tx
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, smartcontract.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), smartcontract.AllowCall)
check(t, ic, hash.BytesBE(), true)
})
t.Run("CustomGroups, unknown contract", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{},
},
},
}
ic.Container = tx
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, smartcontract.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), smartcontract.AllowStates)
check(t, ic, hash.BytesBE(), true)
})
})
})
t.Run("positive", func(t *testing.T) {
t.Run("calling scripthash", func(t *testing.T) {
t.Run("hashed witness", func(t *testing.T) {
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, smartcontract.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), smartcontract.All)
check(t, ic, callingScriptHash.BytesBE(), false, true)
})
t.Run("keyed witness", func(t *testing.T) {
pk, err := keys.NewPrivateKey()
require.NoError(t, err)
callingScriptHash := pk.PublicKey().GetScriptHash()
loadScriptWithHashAndFlags(ic, script, callingScriptHash, smartcontract.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), smartcontract.All)
check(t, ic, pk.PublicKey().Bytes(), false, true)
})
})
t.Run("check scope", func(t *testing.T) {
t.Run("Global", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Global,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
ic.Container = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CalledByEntry", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CalledByEntry,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
ic.Container = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CustomContracts", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomContracts,
AllowedContracts: []util.Uint160{scriptHash},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
ic.Container = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CustomGroups", func(t *testing.T) {
t.Run("empty calling scripthash", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
ic.Container = tx
check(t, ic, hash.BytesBE(), false, false)
})
t.Run("positive", func(t *testing.T) {
targetHash := random.Uint160()
pk, err := keys.NewPrivateKey()
require.NoError(t, err)
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: targetHash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{pk.PublicKey()},
},
},
}
contractScript := []byte{byte(opcode.PUSH1), byte(opcode.RET)}
contractScriptHash := hash.Hash160(contractScript)
contractState := &state.Contract{
ID: 15,
Script: contractScript,
Manifest: manifest.Manifest{
Groups: []manifest.Group{{PublicKey: pk.PublicKey()}},
},
}
require.NoError(t, ic.DAO.PutContractState(contractState))
loadScriptWithHashAndFlags(ic, contractScript, contractScriptHash, smartcontract.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), smartcontract.AllowStates)
ic.Container = tx
check(t, ic, targetHash.BytesBE(), false, true)
})
})
t.Run("bad scope", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.None,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, smartcontract.AllowStates)
ic.Container = tx
check(t, ic, hash.BytesBE(), false, false)
})
})
})
}