neo-go/pkg/compiler/interop_test.go
Anna Shaleva 544f2c2cb2 core: use proper storage price within the whole interop context
We shouldn't use StoragePrice from Blockchain because its dao doesn't
contain the whole set of changes from previouse transactions in the
current block. Instead, we should use an updated storage price for
each transaction and retrieve the price from cached DAO.
2022-04-08 12:50:56 +03:00

422 lines
11 KiB
Go

package compiler_test
import (
"errors"
"fmt"
"math/big"
"strings"
"testing"
"github.com/nspcc-dev/neo-go/internal/fakechain"
"github.com/nspcc-dev/neo-go/pkg/compiler"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
cinterop "github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/stretchr/testify/require"
"go.uber.org/zap/zaptest"
)
func TestTypeConstantSize(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop"
var a %T // type declaration is always ok
func Main() interface{} {
return %#v
}`
t.Run("Hash160", func(t *testing.T) {
t.Run("good", func(t *testing.T) {
a := make(cinterop.Hash160, 20)
src := fmt.Sprintf(src, a, a)
eval(t, src, []byte(a))
})
t.Run("bad", func(t *testing.T) {
a := make(cinterop.Hash160, 19)
src := fmt.Sprintf(src, a, a)
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
})
t.Run("Hash256", func(t *testing.T) {
t.Run("good", func(t *testing.T) {
a := make(cinterop.Hash256, 32)
src := fmt.Sprintf(src, a, a)
eval(t, src, []byte(a))
})
t.Run("bad", func(t *testing.T) {
a := make(cinterop.Hash256, 31)
src := fmt.Sprintf(src, a, a)
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
})
}
func TestFromAddress(t *testing.T) {
as1 := "NQRLhCpAru9BjGsMwk67vdMwmzKMRgsnnN"
addr1, err := address.StringToUint160(as1)
require.NoError(t, err)
as2 := "NPAsqZkx9WhNd4P72uhZxBhLinSuNkxfB8"
addr2, err := address.StringToUint160(as2)
require.NoError(t, err)
t.Run("append 2 addresses", func(t *testing.T) {
src := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() []byte {
addr1 := util.FromAddress("` + as1 + `")
addr2 := util.FromAddress("` + as2 + `")
sum := append(addr1, addr2...)
return sum
}
`
eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
})
t.Run("append 2 addresses inline", func(t *testing.T) {
src := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() []byte {
addr1 := util.FromAddress("` + as1 + `")
sum := append(addr1, util.FromAddress("` + as2 + `")...)
return sum
}
`
eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
})
t.Run("AliasPackage", func(t *testing.T) {
src := `
package foo
import uu "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() []byte {
addr1 := uu.FromAddress("` + as1 + `")
addr2 := uu.FromAddress("` + as2 + `")
sum := append(addr1, addr2...)
return sum
}`
eval(t, src, append(addr1.BytesBE(), addr2.BytesBE()...))
})
}
func TestAbort(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() int {
util.Abort()
return 1
}`
v := vmAndCompile(t, src)
require.Error(t, v.Run())
require.True(t, v.HasFailed())
}
func spawnVM(t *testing.T, ic *interop.Context, src string) *vm.VM {
b, di, err := compiler.CompileWithOptions("foo.go", strings.NewReader(src), nil)
require.NoError(t, err)
v := core.SpawnVM(ic)
invokeMethod(t, testMainIdent, b.Script, v, di)
v.LoadScriptWithFlags(b.Script, callflag.All)
return v
}
func TestAppCall(t *testing.T) {
srcDeep := `package foo
func Get42() int {
return 42
}`
barCtr, di, err := compiler.CompileWithOptions("bar.go", strings.NewReader(srcDeep), nil)
require.NoError(t, err)
mBar, err := di.ConvertToManifest(&compiler.Options{Name: "Bar"})
require.NoError(t, err)
barH := hash.Hash160(barCtr.Script)
srcInner := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
import "github.com/nspcc-dev/neo-go/pkg/interop"
var a int = 3
func Main(a []byte, b []byte) []byte {
panic("Main was called")
}
func Append(a []byte, b []byte) []byte {
return append(a, b...)
}
func Add3(n int) int {
return a + n
}
func CallInner() int {
return contract.Call(%s, "get42", contract.All).(int)
}`
srcInner = fmt.Sprintf(srcInner,
fmt.Sprintf("%#v", cinterop.Hash160(barH.BytesBE())))
inner, di, err := compiler.CompileWithOptions("foo.go", strings.NewReader(srcInner), nil)
require.NoError(t, err)
m, err := di.ConvertToManifest(&compiler.Options{
Name: "Foo",
Permissions: []manifest.Permission{
*manifest.NewPermission(manifest.PermissionWildcard),
},
})
require.NoError(t, err)
ih := hash.Hash160(inner.Script)
var contractGetter = func(_ *dao.Simple, h util.Uint160) (*state.Contract, error) {
if h.Equals(ih) {
return &state.Contract{
ContractBase: state.ContractBase{
Hash: ih,
NEF: *inner,
Manifest: *m,
},
}, nil
} else if h.Equals(barH) {
return &state.Contract{
ContractBase: state.ContractBase{
Hash: barH,
NEF: *barCtr,
Manifest: *mBar,
},
}, nil
}
return nil, errors.New("not found")
}
fc := fakechain.NewFakeChain()
ic := interop.NewContext(trigger.Application, fc, dao.NewSimple(storage.NewMemoryStore(), false, false), interop.DefaultBaseExecFee, native.DefaultStoragePrice, contractGetter, nil, nil, nil, zaptest.NewLogger(t))
t.Run("valid script", func(t *testing.T) {
src := getAppCallScript(fmt.Sprintf("%#v", ih.BytesBE()))
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("callEx, valid", func(t *testing.T) {
src := getCallExScript(fmt.Sprintf("%#v", ih.BytesBE()), "contract.ReadStates|contract.AllowCall")
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, big.NewInt(42))
})
t.Run("callEx, missing flags", func(t *testing.T) {
src := getCallExScript(fmt.Sprintf("%#v", ih.BytesBE()), "contract.NoneFlag")
v := spawnVM(t, ic, src)
require.Error(t, v.Run())
})
t.Run("missing script", func(t *testing.T) {
h := ih
h[0] = ^h[0]
src := getAppCallScript(fmt.Sprintf("%#v", h.BytesBE()))
v := spawnVM(t, ic, src)
require.Error(t, v.Run())
})
t.Run("convert from string constant", func(t *testing.T) {
src := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
const scriptHash = ` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `
func Main() []byte {
x := []byte{1, 2}
y := []byte{3, 4}
result := contract.Call([]byte(scriptHash), "append", contract.All, x, y)
return result.([]byte)
}
`
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("convert from var", func(t *testing.T) {
src := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
func Main() []byte {
x := []byte{1, 2}
y := []byte{3, 4}
var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
result := contract.Call(addr, "append", contract.All, x, y)
return result.([]byte)
}
`
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("InitializedGlobals", func(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
func Main() int {
var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
result := contract.Call(addr, "add3", contract.All, 39)
return result.(int)
}`
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, big.NewInt(42))
})
t.Run("AliasPackage", func(t *testing.T) {
src := `package foo
import ee "github.com/nspcc-dev/neo-go/pkg/interop/contract"
func Main() int {
var addr = []byte(` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `)
result := ee.Call(addr, "add3", ee.All, 39)
return result.(int)
}`
v := spawnVM(t, ic, src)
require.NoError(t, v.Run())
assertResult(t, v, big.NewInt(42))
})
}
func getAppCallScript(h string) string {
return `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
func Main() []byte {
x := []byte{1, 2}
y := []byte{3, 4}
result := contract.Call(` + h + `, "append", contract.All, x, y)
return result.([]byte)
}
`
}
func getCallExScript(h string, flags string) string {
return `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/contract"
func Main() int {
result := contract.Call(` + h + `, "callInner", ` + flags + `)
return result.(int)
}`
}
func TestBuiltinDoesNotCompile(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() bool {
a := 1
b := 2
return util.Equals(a, b)
}`
v := vmAndCompile(t, src)
ctx := v.Context()
retCount := 0
for op, _, err := ctx.Next(); err == nil; op, _, err = ctx.Next() {
if ctx.IP() >= len(ctx.Program()) {
break
}
if op == opcode.RET {
retCount++
}
}
require.Equal(t, 1, retCount)
}
func TestInteropPackage(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/block"
func Main() int {
b := block.Block{}
a := block.GetTransactionCount(b)
return a
}`
eval(t, src, big.NewInt(42))
}
func TestBuiltinPackage(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/util"
func Main() int {
if util.Equals(1, 2) { // always returns true
return 1
}
return 2
}`
eval(t, src, big.NewInt(1))
}
func TestLenForNil(t *testing.T) {
src := `
package foo
func Main() bool {
var a []int = nil
return len(a) == 0
}`
eval(t, src, true)
}
func TestCallTConversionErrors(t *testing.T) {
t.Run("variable hash", func(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
func Main() int {
var hash string
return neogointernal.CallWithToken(hash, "method", 0).(int)
}`
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
t.Run("bad hash", func(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
func Main() int {
return neogointernal.CallWithToken("badstring", "method", 0).(int)
}`
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
t.Run("variable method", func(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
func Main() int {
var method string
return neogointernal.CallWithToken("\xf5\x63\xea\x40\xbc\x28\x3d\x4d\x0e\x05\xc4\x8e\xa3\x05\xb3\xf2\xa0\x73\x40\xef", method, 0).(int)
}`
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
t.Run("variable flags", func(t *testing.T) {
src := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
func Main() {
var flags int
neogointernal.CallWithTokenNoRet("\xf5\x63\xea\x40\xbc\x28\x3d\x4d\x0e\x05\xc4\x8e\xa3\x05\xb3\xf2\xa0\x73\x40\xef", "method", flags)
}`
_, err := compiler.Compile("foo.go", strings.NewReader(src))
require.Error(t, err)
})
}