neo-go/pkg/compiler/syscall_test.go
2021-03-16 16:59:23 +03:00

313 lines
11 KiB
Go

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