521 lines
15 KiB
Go
521 lines
15 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/internal/fakechain"
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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/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/native"
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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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"github.com/nspcc-dev/neo-go/pkg/encoding/base58"
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cinterop "github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/neotest"
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"github.com/nspcc-dev/neo-go/pkg/neotest/chain"
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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/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/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/nspcc-dev/neo-go/pkg/vm/stackitem"
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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 TestAddressToHash160BuiltinConversion(t *testing.T) {
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a := "NQRLhCpAru9BjGsMwk67vdMwmzKMRgsnnN"
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h, err := address.StringToUint160(a)
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require.NoError(t, err)
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t.Run("builtin conversion", func(t *testing.T) {
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src := `package foo
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/lib/address"
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)
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var addr = address.ToHash160("` + a + `")
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func Main() interop.Hash160 {
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return addr
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}`
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prog := eval(t, src, h.BytesBE())
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// Address BE bytes expected to be present at program, which indicates that address conversion
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// was performed at compile-time.
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require.True(t, strings.Contains(string(prog), string(h.BytesBE())))
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// On the contrary, there should be no address string.
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require.False(t, strings.Contains(string(prog), a))
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})
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t.Run("generate code", func(t *testing.T) {
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src := `package foo
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/lib/address"
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)
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var addr = "` + a + `"
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func Main() interop.Hash160 {
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return address.ToHash160(addr)
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}`
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// Error on CALLT (std.Base58CheckDecode - method of StdLib native contract) is expected, which means
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// that address.ToHash160 code was honestly generated by the compiler without any optimisations.
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prog := evalWithError(t, src, "(CALLT): runtime error: invalid memory address or nil pointer dereference")
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// Address BE bytes expected not to be present at program, which indicates that address conversion
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// was not performed at compile-time.
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require.False(t, strings.Contains(string(prog), string(h.BytesBE())))
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// On the contrary, there should be an address string.
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require.True(t, strings.Contains(string(prog), a))
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})
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}
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func TestInvokeAddressToFromHash160(t *testing.T) {
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a := "NQRLhCpAru9BjGsMwk67vdMwmzKMRgsnnN"
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h, err := address.StringToUint160(a)
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require.NoError(t, err)
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bc, acc := chain.NewSingle(t)
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e := neotest.NewExecutor(t, bc, acc, acc)
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src := `package foo
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/lib/address"
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)
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const addr = "` + a + `"
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func ToHash160(a string) interop.Hash160 {
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return address.ToHash160(a)
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}
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func ToHash160AtCompileTime() interop.Hash160 {
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return address.ToHash160(addr)
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}
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func FromHash160(hash interop.Hash160) string {
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return address.FromHash160(hash)
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}`
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ctr := neotest.CompileSource(t, e.CommitteeHash, strings.NewReader(src), &compiler.Options{Name: "Helper"})
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e.DeployContract(t, ctr, nil)
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c := e.CommitteeInvoker(ctr.Hash)
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t.Run("ToHash160", func(t *testing.T) {
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t.Run("invalid address length", func(t *testing.T) {
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c.InvokeFail(t, "invalid address length", "toHash160", base58.CheckEncode(make([]byte, util.Uint160Size+1+1)))
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})
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t.Run("invalid prefix", func(t *testing.T) {
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c.InvokeFail(t, "invalid address prefix", "toHash160", base58.CheckEncode(append([]byte{address.NEO2Prefix}, h.BytesBE()...)))
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})
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t.Run("good", func(t *testing.T) {
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c.Invoke(t, stackitem.NewBuffer(h.BytesBE()), "toHash160", a)
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})
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})
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t.Run("ToHash160Constant", func(t *testing.T) {
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t.Run("good", func(t *testing.T) {
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c.Invoke(t, stackitem.NewBuffer(h.BytesBE()), "toHash160AtCompileTime")
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})
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})
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t.Run("FromHash160", func(t *testing.T) {
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t.Run("good", func(t *testing.T) {
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c.Invoke(t, stackitem.NewByteArray([]byte(a)), "fromHash160", h.BytesBE())
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})
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t.Run("invalid length", func(t *testing.T) {
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c.InvokeFail(t, "invalid Hash160 length", "fromHash160", h.BytesBE()[:15])
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})
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})
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}
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func TestAbort(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() int {
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util.Abort()
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return 1
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}`
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v := vmAndCompile(t, src)
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require.Error(t, v.Run())
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require.True(t, v.HasFailed())
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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.CompileWithOptions("foo.go", strings.NewReader(src), nil)
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require.NoError(t, err)
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v := core.SpawnVM(ic)
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invokeMethod(t, testMainIdent, b.Script, v, di)
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v.LoadScriptWithFlags(b.Script, 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.CompileWithOptions("bar.go", strings.NewReader(srcDeep), nil)
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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.Script)
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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.CompileWithOptions("foo.go", strings.NewReader(srcInner), nil)
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require.NoError(t, err)
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m, err := di.ConvertToManifest(&compiler.Options{
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Name: "Foo",
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Permissions: []manifest.Permission{
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*manifest.NewPermission(manifest.PermissionWildcard),
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},
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})
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require.NoError(t, err)
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ih := hash.Hash160(inner.Script)
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var contractGetter = func(_ *dao.Simple, h util.Uint160) (*state.Contract, error) {
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if h.Equals(ih) {
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return &state.Contract{
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ContractBase: state.ContractBase{
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Hash: ih,
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NEF: *inner,
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Manifest: *m,
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},
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}, nil
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} else if h.Equals(barH) {
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return &state.Contract{
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ContractBase: state.ContractBase{
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Hash: barH,
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NEF: *barCtr,
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Manifest: *mBar,
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},
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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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fc := fakechain.NewFakeChain()
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ic := interop.NewContext(trigger.Application, fc, dao.NewSimple(storage.NewMemoryStore(), false, false),
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interop.DefaultBaseExecFee, native.DefaultStoragePrice, contractGetter, nil, 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.ReadStates|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
|
|
}
|
|
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)
|
|
})
|
|
}
|