mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-27 03:58:06 +00:00
138 lines
3.8 KiB
Go
138 lines
3.8 KiB
Go
package core
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import (
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/core/interop"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/stretchr/testify/require"
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)
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type testNative struct {
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meta interop.ContractMD
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blocks chan uint32
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}
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func (tn *testNative) Initialize(_ *interop.Context) error {
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return nil
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}
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func (tn *testNative) Metadata() *interop.ContractMD {
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return &tn.meta
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}
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func (tn *testNative) OnPersist(ic *interop.Context, _ []stackitem.Item) stackitem.Item {
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if ic.Trigger != trigger.System {
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panic("invalid trigger")
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}
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select {
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case tn.blocks <- ic.Block.Index:
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return stackitem.NewBool(true)
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default:
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return stackitem.NewBool(false)
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}
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}
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var _ interop.Contract = (*testNative)(nil)
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// registerNative registers native contract in the blockchain.
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func (bc *Blockchain) registerNative(c interop.Contract) {
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bc.contracts.Contracts = append(bc.contracts.Contracts, c)
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}
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const testSumPrice = 1000000
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func newTestNative() *testNative {
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tn := &testNative{
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meta: *interop.NewContractMD("Test.Native.Sum"),
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blocks: make(chan uint32, 1),
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}
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desc := &manifest.Method{
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Name: "sum",
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Parameters: []manifest.Parameter{
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manifest.NewParameter("addend1", smartcontract.IntegerType),
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manifest.NewParameter("addend2", smartcontract.IntegerType),
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},
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ReturnType: smartcontract.IntegerType,
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}
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md := &interop.MethodAndPrice{
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Func: tn.sum,
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Price: testSumPrice,
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RequiredFlags: smartcontract.NoneFlag,
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}
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tn.meta.AddMethod(md, desc, true)
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desc = &manifest.Method{Name: "onPersist", ReturnType: smartcontract.BoolType}
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md = &interop.MethodAndPrice{Func: tn.OnPersist, RequiredFlags: smartcontract.AllowModifyStates}
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tn.meta.AddMethod(md, desc, false)
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return tn
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}
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func (tn *testNative) sum(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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s1, err := args[0].TryInteger()
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if err != nil {
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panic(err)
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}
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s2, err := args[1].TryInteger()
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if err != nil {
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panic(err)
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}
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return stackitem.NewBigInteger(s1.Add(s1, s2))
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}
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func TestNativeContract_Invoke(t *testing.T) {
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chain := newTestChain(t)
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defer chain.Close()
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tn := newTestNative()
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chain.registerNative(tn)
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err := chain.dao.PutContractState(&state.Contract{Script: tn.meta.Script})
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require.NoError(t, err)
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w := io.NewBufBinWriter()
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emit.AppCallWithOperationAndArgs(w.BinWriter, tn.Metadata().Hash, "sum", int64(14), int64(28))
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script := w.Bytes()
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// System.Contract.Call + "sum" itself + opcodes for pushing arguments (PACK is 7000)
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tx := transaction.New(chain.GetConfig().Magic, script, testSumPrice*2+10000)
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validUntil := chain.blockHeight + 1
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tx.ValidUntilBlock = validUntil
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require.NoError(t, addSender(tx))
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require.NoError(t, signTx(chain, tx))
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// Enough for Call and other opcodes, but not enough for "sum" call.
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tx2 := transaction.New(chain.GetConfig().Magic, script, testSumPrice*2)
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tx2.ValidUntilBlock = chain.blockHeight + 1
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require.NoError(t, addSender(tx2))
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require.NoError(t, signTx(chain, tx2))
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b := chain.newBlock(tx, tx2)
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require.NoError(t, chain.AddBlock(b))
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res, err := chain.GetAppExecResult(tx.Hash())
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require.NoError(t, err)
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require.Equal(t, "HALT", res.VMState)
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require.Equal(t, 1, len(res.Stack))
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require.Equal(t, smartcontract.IntegerType, res.Stack[0].Type)
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require.EqualValues(t, 42, res.Stack[0].Value)
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res, err = chain.GetAppExecResult(tx2.Hash())
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require.NoError(t, err)
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require.Equal(t, "FAULT", res.VMState)
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require.NoError(t, chain.persist())
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select {
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case index := <-tn.blocks:
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require.Equal(t, chain.blockHeight, index)
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default:
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require.Fail(t, "onPersist wasn't called")
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}
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}
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