1c0c331e25
1. Remove `System.Contract.CallEx`. 2. Extend number of parameters. 3. Add return value count to `VM.Context`.
361 lines
9.3 KiB
Go
361 lines
9.3 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/config/netmode"
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"github.com/nspcc-dev/neo-go/pkg/core"
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"github.com/nspcc-dev/neo-go/pkg/core/dao"
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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/storage"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/encoding/address"
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cinterop "github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
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)
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func TestTypeConstantSize(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop"
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var a %T // type declaration is always ok
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func Main() interface{} {
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return %#v
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}`
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t.Run("Hash160", func(t *testing.T) {
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t.Run("good", func(t *testing.T) {
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a := make(cinterop.Hash160, 20)
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src := fmt.Sprintf(src, a, a)
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eval(t, src, []byte(a))
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})
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t.Run("bad", func(t *testing.T) {
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a := make(cinterop.Hash160, 19)
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src := fmt.Sprintf(src, a, a)
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_, err := compiler.Compile("foo.go", strings.NewReader(src))
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require.Error(t, err)
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})
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})
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t.Run("Hash256", func(t *testing.T) {
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t.Run("good", func(t *testing.T) {
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a := make(cinterop.Hash256, 32)
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src := fmt.Sprintf(src, a, a)
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eval(t, src, []byte(a))
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})
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t.Run("bad", func(t *testing.T) {
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a := make(cinterop.Hash256, 31)
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src := fmt.Sprintf(src, a, a)
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_, err := compiler.Compile("foo.go", strings.NewReader(src))
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require.Error(t, err)
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})
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})
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}
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func TestFromAddress(t *testing.T) {
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as1 := "NQRLhCpAru9BjGsMwk67vdMwmzKMRgsnnN"
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addr1, err := address.StringToUint160(as1)
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require.NoError(t, err)
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as2 := "NPAsqZkx9WhNd4P72uhZxBhLinSuNkxfB8"
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addr2, err := address.StringToUint160(as2)
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require.NoError(t, err)
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t.Run("append 2 addresses", func(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/util"
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func Main() []byte {
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addr1 := util.FromAddress("` + as1 + `")
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addr2 := util.FromAddress("` + as2 + `")
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sum := append(addr1, addr2...)
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return sum
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}
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`
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eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
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})
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t.Run("append 2 addresses inline", func(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/util"
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func Main() []byte {
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addr1 := util.FromAddress("` + as1 + `")
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sum := append(addr1, util.FromAddress("` + as2 + `")...)
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return sum
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}
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`
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eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
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})
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t.Run("AliasPackage", func(t *testing.T) {
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src := `
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package foo
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import uu "github.com/nspcc-dev/neo-go/pkg/interop/util"
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func Main() []byte {
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addr1 := uu.FromAddress("` + as1 + `")
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addr2 := uu.FromAddress("` + as2 + `")
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sum := append(addr1, addr2...)
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return sum
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}`
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eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
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})
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}
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func spawnVM(t *testing.T, ic *interop.Context, src string) *vm.VM {
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b, di, err := compiler.CompileWithDebugInfo("foo.go", strings.NewReader(src))
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require.NoError(t, err)
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v := core.SpawnVM(ic)
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invokeMethod(t, testMainIdent, b, v, di)
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v.LoadScriptWithFlags(b, callflag.All)
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return v
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}
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func TestAppCall(t *testing.T) {
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srcDeep := `package foo
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func Get42() int {
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return 42
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}`
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barCtr, di, err := compiler.CompileWithDebugInfo("bar.go", strings.NewReader(srcDeep))
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require.NoError(t, err)
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mBar, err := di.ConvertToManifest(&compiler.Options{Name: "Bar"})
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require.NoError(t, err)
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barH := hash.Hash160(barCtr)
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srcInner := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
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import "github.com/nspcc-dev/neo-go/pkg/interop"
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var a int = 3
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func Main(a []byte, b []byte) []byte {
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panic("Main was called")
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}
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func Append(a []byte, b []byte) []byte {
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return append(a, b...)
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}
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func Add3(n int) int {
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return a + n
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}
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func CallInner() int {
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return contract.Call(%s, "get42", contract.All).(int)
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}`
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srcInner = fmt.Sprintf(srcInner,
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fmt.Sprintf("%#v", cinterop.Hash160(barH.BytesBE())))
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inner, di, err := compiler.CompileWithDebugInfo("foo.go", strings.NewReader(srcInner))
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require.NoError(t, err)
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m, err := di.ConvertToManifest(&compiler.Options{Name: "Foo"})
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require.NoError(t, err)
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ih := hash.Hash160(inner)
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var contractGetter = func(_ dao.DAO, h util.Uint160) (*state.Contract, error) {
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if h.Equals(ih) {
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innerNef, err := nef.NewFile(inner)
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require.NoError(t, err)
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return &state.Contract{
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Hash: ih,
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NEF: *innerNef,
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Manifest: *m,
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}, nil
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} else if h.Equals(barH) {
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barNef, err := nef.NewFile(barCtr)
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require.NoError(t, err)
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return &state.Contract{
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Hash: barH,
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NEF: *barNef,
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Manifest: *mBar,
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}, nil
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}
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return nil, errors.New("not found")
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}
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ic := interop.NewContext(trigger.Application, nil, dao.NewSimple(storage.NewMemoryStore(), netmode.UnitTestNet, false), contractGetter, nil, nil, nil, zaptest.NewLogger(t))
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t.Run("valid script", func(t *testing.T) {
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src := getAppCallScript(fmt.Sprintf("%#v", ih.BytesBE()))
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, []byte{1, 2, 3, 4})
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})
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t.Run("callEx, valid", func(t *testing.T) {
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src := getCallExScript(fmt.Sprintf("%#v", ih.BytesBE()), "contract.AllowCall")
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, big.NewInt(42))
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})
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t.Run("callEx, missing flags", func(t *testing.T) {
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src := getCallExScript(fmt.Sprintf("%#v", ih.BytesBE()), "contract.NoneFlag")
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v := spawnVM(t, ic, src)
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require.Error(t, v.Run())
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})
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t.Run("missing script", func(t *testing.T) {
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h := ih
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h[0] = ^h[0]
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src := getAppCallScript(fmt.Sprintf("%#v", h.BytesBE()))
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v := spawnVM(t, ic, src)
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require.Error(t, v.Run())
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})
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t.Run("convert from string constant", func(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/contract"
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const scriptHash = ` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `
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func Main() []byte {
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x := []byte{1, 2}
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y := []byte{3, 4}
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result := contract.Call([]byte(scriptHash), "append", contract.All, x, y)
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return result.([]byte)
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}
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`
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, []byte{1, 2, 3, 4})
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})
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t.Run("convert from var", func(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/contract"
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func Main() []byte {
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x := []byte{1, 2}
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y := []byte{3, 4}
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var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
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result := contract.Call(addr, "append", contract.All, x, y)
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return result.([]byte)
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}
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`
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, []byte{1, 2, 3, 4})
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})
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t.Run("InitializedGlobals", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
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func Main() int {
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var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
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result := contract.Call(addr, "add3", contract.All, 39)
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return result.(int)
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}`
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, big.NewInt(42))
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})
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t.Run("AliasPackage", func(t *testing.T) {
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src := `package foo
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import ee "github.com/nspcc-dev/neo-go/pkg/interop/contract"
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func Main() int {
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var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
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result := ee.Call(addr, "add3", ee.All, 39)
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return result.(int)
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}`
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v := spawnVM(t, ic, src)
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require.NoError(t, v.Run())
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assertResult(t, v, big.NewInt(42))
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})
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}
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func getAppCallScript(h string) string {
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return `
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package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
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func Main() []byte {
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x := []byte{1, 2}
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y := []byte{3, 4}
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result := contract.Call(` + h + `, "append", contract.All, x, y)
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return result.([]byte)
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}
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`
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}
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func getCallExScript(h string, flags string) string {
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return `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
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func Main() int {
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result := contract.Call(` + h + `, "callInner", ` + flags + `)
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return result.(int)
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}`
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}
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func TestBuiltinDoesNotCompile(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/util"
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func Main() bool {
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a := 1
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b := 2
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return util.Equals(a, b)
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}`
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v := vmAndCompile(t, src)
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ctx := v.Context()
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retCount := 0
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for op, _, err := ctx.Next(); err == nil; op, _, err = ctx.Next() {
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if ctx.IP() >= len(ctx.Program()) {
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break
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}
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if op == opcode.RET {
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retCount++
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}
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}
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require.Equal(t, 1, retCount)
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}
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func TestInteropPackage(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/block"
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func Main() int {
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b := block.Block{}
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a := block.GetTransactionCount(b)
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return a
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}`
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eval(t, src, big.NewInt(42))
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}
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func TestBuiltinPackage(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/util"
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func Main() int {
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if util.Equals(1, 2) { // always returns true
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return 1
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}
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return 2
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}`
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eval(t, src, big.NewInt(1))
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}
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func TestLenForNil(t *testing.T) {
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src := `
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package foo
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func Main() bool {
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var a []int = nil
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return len(a) == 0
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}`
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eval(t, src, true)
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}
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