311 lines
11 KiB
Go
311 lines
11 KiB
Go
package compiler_test
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import (
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"errors"
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"fmt"
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"math/big"
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"strings"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/compiler"
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"github.com/nspcc-dev/neo-go/pkg/core"
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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/interop/interopnames"
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istorage "github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
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"github.com/nspcc-dev/neo-go/pkg/interop/contract"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// Checks that changes in `smartcontract` are reflected in compiler interop package.
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func TestCallFlags(t *testing.T) {
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require.EqualValues(t, contract.ReadStates, callflag.ReadStates)
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require.EqualValues(t, contract.WriteStates, callflag.WriteStates)
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require.EqualValues(t, contract.AllowCall, callflag.AllowCall)
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require.EqualValues(t, contract.AllowNotify, callflag.AllowNotify)
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require.EqualValues(t, contract.States, callflag.States)
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require.EqualValues(t, contract.ReadOnly, callflag.ReadOnly)
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require.EqualValues(t, contract.All, callflag.All)
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require.EqualValues(t, contract.NoneFlag, callflag.NoneFlag)
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}
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func TestFindFlags(t *testing.T) {
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require.EqualValues(t, storage.None, istorage.FindDefault)
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require.EqualValues(t, storage.KeysOnly, istorage.FindKeysOnly)
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require.EqualValues(t, storage.RemovePrefix, istorage.FindRemovePrefix)
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require.EqualValues(t, storage.ValuesOnly, istorage.FindValuesOnly)
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require.EqualValues(t, storage.DeserializeValues, istorage.FindDeserialize)
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require.EqualValues(t, storage.PickField0, istorage.FindPick0)
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require.EqualValues(t, storage.PickField1, istorage.FindPick1)
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}
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type syscallTestCase struct {
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method string
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params []string
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isVoid bool
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}
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// This test ensures that our wrappers have necessary number of parameters
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// and execute needed syscall. Because of lack of typing (compared to native contracts)
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// parameter types can't be checked.
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func TestSyscallExecution(t *testing.T) {
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b := `[]byte{1}`
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u160 := `interop.Hash160("aaaaaaaaaaaaaaaaaaaa")`
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pub := `interop.PublicKey("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")`
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pubs := "[]interop.PublicKey{ " + pub + "}"
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sig := `interop.Signature("aaaaaa")`
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sigs := "[]interop.Signature{" + sig + "}"
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sctx := "storage.Context{}"
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interops := map[string]syscallTestCase{
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"contract.Call": {interopnames.SystemContractCall, []string{u160, `"m"`, "1", "3"}, false},
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"contract.CreateMultisigAccount": {interopnames.SystemContractCreateMultisigAccount, []string{"1", pubs}, false},
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"contract.CreateStandardAccount": {interopnames.SystemContractCreateStandardAccount, []string{pub}, false},
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"contract.GetCallFlags": {interopnames.SystemContractGetCallFlags, nil, false},
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"iterator.Next": {interopnames.SystemIteratorNext, []string{"iterator.Iterator{}"}, false},
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"iterator.Value": {interopnames.SystemIteratorValue, []string{"iterator.Iterator{}"}, false},
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"runtime.BurnGas": {interopnames.SystemRuntimeBurnGas, []string{"1"}, true},
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"runtime.CheckWitness": {interopnames.SystemRuntimeCheckWitness, []string{b}, false},
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"runtime.GasLeft": {interopnames.SystemRuntimeGasLeft, nil, false},
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"runtime.GetCallingScriptHash": {interopnames.SystemRuntimeGetCallingScriptHash, nil, false},
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"runtime.GetEntryScriptHash": {interopnames.SystemRuntimeGetEntryScriptHash, nil, false},
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"runtime.GetExecutingScriptHash": {interopnames.SystemRuntimeGetExecutingScriptHash, nil, false},
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"runtime.GetInvocationCounter": {interopnames.SystemRuntimeGetInvocationCounter, nil, false},
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"runtime.GetNotifications": {interopnames.SystemRuntimeGetNotifications, []string{u160}, false},
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"runtime.GetScriptContainer": {interopnames.SystemRuntimeGetScriptContainer, nil, false},
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"runtime.GetTime": {interopnames.SystemRuntimeGetTime, nil, false},
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"runtime.GetTrigger": {interopnames.SystemRuntimeGetTrigger, nil, false},
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"runtime.Log": {interopnames.SystemRuntimeLog, []string{`"msg"`}, true},
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"runtime.Notify": {interopnames.SystemRuntimeNotify, []string{`"ev"`, "1"}, true},
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"runtime.Platform": {interopnames.SystemRuntimePlatform, nil, false},
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"storage.Delete": {interopnames.SystemStorageDelete, []string{sctx, b}, true},
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"storage.Find": {interopnames.SystemStorageFind, []string{sctx, b, "storage.None"}, false},
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"storage.Get": {interopnames.SystemStorageGet, []string{sctx, b}, false},
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"storage.GetContext": {interopnames.SystemStorageGetContext, nil, false},
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"storage.GetReadOnlyContext": {interopnames.SystemStorageGetReadOnlyContext, nil, false},
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"storage.Put": {interopnames.SystemStoragePut, []string{sctx, b, b}, true},
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"storage.ConvertContextToReadOnly": {interopnames.SystemStorageAsReadOnly, []string{sctx}, false},
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"crypto.CheckMultisig": {interopnames.SystemCryptoCheckMultisig, []string{pubs, sigs}, false},
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"crypto.CheckSig": {interopnames.SystemCryptoCheckSig, []string{pub, sig}, false},
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}
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ic := &interop.Context{}
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core.SpawnVM(ic) // set Functions field
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for _, fs := range ic.Functions {
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// It will be set in test and we want to fail if calling invalid syscall.
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fs.Func = nil
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}
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for goName, tc := range interops {
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t.Run(goName, func(t *testing.T) {
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runSyscallTestCase(t, ic, goName, tc)
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})
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}
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}
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func runSyscallTestCase(t *testing.T, ic *interop.Context, goName string, tc syscallTestCase) {
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syscallID := interopnames.ToID([]byte(tc.method))
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f := ic.GetFunction(syscallID)
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require.NotNil(t, f)
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require.Equal(t, f.ParamCount, len(tc.params))
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called := false
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f.Func = func(ic *interop.Context) error {
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called = true
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if ic.VM.Estack().Len() < f.ParamCount {
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return errors.New("not enough parameters")
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}
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for i := 0; i < f.ParamCount; i++ {
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ic.VM.Estack().Pop()
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}
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if !tc.isVoid {
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ic.VM.Estack().PushVal(42)
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}
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return nil
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}
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defer func() { f.Func = nil }()
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srcTmpl := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/%s"
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import "github.com/nspcc-dev/neo-go/pkg/interop"
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func unused() { var _ interop.Hash160 }
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`
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if tc.isVoid {
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srcTmpl += `func Main() { %s(%s) }`
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} else {
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srcTmpl += `func Main() interface{} { return %s(%s) }`
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}
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ss := strings.Split(goName, ".")
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src := fmt.Sprintf(srcTmpl, ss[0], goName, strings.Join(tc.params, ", "))
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b, _, err := compiler.CompileWithDebugInfo("foo", strings.NewReader(src))
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require.NoError(t, err)
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v := ic.SpawnVM()
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v.LoadScriptWithFlags(b, callflag.All)
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require.NoError(t, v.Run())
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require.True(t, called)
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if tc.isVoid {
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require.Equal(t, 0, v.Estack().Len())
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} else {
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require.Equal(t, 1, v.Estack().Len())
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require.Equal(t, big.NewInt(42), v.Estack().Pop().Value())
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}
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}
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func TestStoragePutGet(t *testing.T) {
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src := `
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package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/storage"
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func Main() string {
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ctx := storage.GetContext()
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key := []byte("token")
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storage.Put(ctx, key, []byte("foo"))
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x := storage.Get(ctx, key)
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return x.(string)
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}
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`
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eval(t, src, []byte("foo"))
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}
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func TestNotify(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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func Main(arg int) {
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runtime.Notify("Event1", arg, "sum", arg+1)
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runtime.Notify("single")
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}`
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v, s := vmAndCompileInterop(t, src)
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v.Estack().PushVal(11)
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require.NoError(t, v.Run())
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require.Equal(t, 2, len(s.events))
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exp0 := []stackitem.Item{stackitem.NewBigInteger(big.NewInt(11)), stackitem.NewByteArray([]byte("sum")), stackitem.NewBigInteger(big.NewInt(12))}
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assert.Equal(t, "Event1", s.events[0].Name)
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assert.Equal(t, exp0, s.events[0].Item.Value())
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assert.Equal(t, "single", s.events[1].Name)
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assert.Equal(t, []stackitem.Item{}, s.events[1].Item.Value())
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}
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func TestSyscallInGlobalInit(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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var a = runtime.CheckWitness([]byte("5T"))
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func Main() bool {
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return a
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}`
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v, s := vmAndCompileInterop(t, src)
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s.interops[interopnames.ToID([]byte(interopnames.SystemRuntimeCheckWitness))] = func(v *vm.VM) error {
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s := v.Estack().Pop().Value().([]byte)
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require.Equal(t, "5T", string(s))
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v.Estack().PushVal(true)
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return nil
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}
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require.NoError(t, v.Run())
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require.Equal(t, true, v.Estack().Pop().Value())
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}
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func TestOpcode(t *testing.T) {
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t.Run("1 argument", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
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func abs(a int) int {
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return neogointernal.Opcode1("ABS", a).(int)
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}
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func Main() int {
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return abs(-42)
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}`
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eval(t, src, big.NewInt(42))
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})
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t.Run("2 arguments", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
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func add3(a, b, c int) int {
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return neogointernal.Opcode2("SUB", a,
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neogointernal.Opcode2("SUB", b, c).(int)).(int)
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}
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func Main() int {
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return add3(53, 12, 1)
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}`
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eval(t, src, big.NewInt(42))
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})
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t.Run("POW", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() int {
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return math.Pow(2, math.Pow(3, 2))
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}`
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eval(t, src, big.NewInt(512))
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})
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t.Run("SRQT", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() int {
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return math.Sqrt(math.Sqrt(101)) // == sqrt(10) == 3
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}`
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eval(t, src, big.NewInt(3))
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})
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t.Run("SIGN", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() []int {
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signs := make([]int, 3)
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signs[0] = math.Sign(-123)
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signs[1] = math.Sign(0)
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signs[2] = math.Sign(42)
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return signs
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}`
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eval(t, src, []stackitem.Item{
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stackitem.Make(-1),
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stackitem.Make(0),
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stackitem.Make(1),
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})
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})
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t.Run("ABS", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() int {
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return math.Abs(-3)
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}`
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eval(t, src, big.NewInt(3))
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})
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t.Run("MAX", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() int {
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return math.Max(1, 2) + math.Max(8, 3)
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}`
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eval(t, src, big.NewInt(10))
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})
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t.Run("MIN", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() int {
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return math.Min(1, 2) + math.Min(8, 3)
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}`
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eval(t, src, big.NewInt(4))
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})
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t.Run("WITHIN", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/math"
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func Main() []bool {
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r := make([]bool, 5)
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r[0] = math.Within(2, 3, 5)
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r[1] = math.Within(3, 3, 5)
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r[2] = math.Within(4, 3, 5)
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r[3] = math.Within(5, 3, 5)
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r[4] = math.Within(6, 3, 5)
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return r
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}`
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eval(t, src, []stackitem.Item{
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stackitem.Make(false),
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stackitem.Make(true),
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stackitem.Make(true),
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stackitem.Make(false),
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stackitem.Make(false),
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})
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})
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}
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