neo-go/pkg/compiler/interop_test.go
Evgenii Stratonikov 9f7f94a6fb compiler: implement Remove builtin
Support removing items from collections via REMOVE opcode.
2020-06-08 12:05:44 +03:00

248 lines
5.8 KiB
Go

package compiler_test
import (
"fmt"
"math/big"
"strings"
"testing"
"github.com/nspcc-dev/neo-go/pkg/compiler"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/stretchr/testify/require"
)
func TestRemove(t *testing.T) {
srcTmpl := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() int {
a := %s
util.Remove(a, %d)
return len(a) * a[%d]
}`
testRemove := func(item string, key, index, result int64) func(t *testing.T) {
return func(t *testing.T) {
src := fmt.Sprintf(srcTmpl, item, key, index)
if result > 0 {
eval(t, src, big.NewInt(result))
return
}
v := vmAndCompile(t, src)
require.Error(t, v.Run())
}
}
t.Run("Map", func(t *testing.T) {
item := "map[int]int{1: 2, 5: 7, 11: 13}"
t.Run("RemovedKey", testRemove(item, 5, 5, -1))
t.Run("AnotherKey", testRemove(item, 5, 11, 26))
})
t.Run("Slice", func(t *testing.T) {
item := "[]int{5, 7, 11, 13}"
t.Run("RemovedKey", testRemove(item, 2, 2, 39))
t.Run("AnotherKey", testRemove(item, 2, 1, 21))
t.Run("LastKey", testRemove(item, 2, 3, -1))
})
t.Run("Invalid", func(t *testing.T) {
srcTmpl := `package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/util"
func Main() int {
util.Remove(%s, 2)
return 1
}`
t.Run("BasicType", func(t *testing.T) {
src := fmt.Sprintf(srcTmpl, "1")
_, err := compiler.Compile(strings.NewReader(src))
require.Error(t, err)
})
t.Run("ByteSlice", func(t *testing.T) {
src := fmt.Sprintf(srcTmpl, "[]byte{1, 2}")
_, err := compiler.Compile(strings.NewReader(src))
require.Error(t, err)
})
})
}
func TestFromAddress(t *testing.T) {
as1 := "Aej1fe4mUgou48Zzup5j8sPrE3973cJ5oz"
addr1, err := address.StringToUint160(as1)
require.NoError(t, err)
as2 := "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y"
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()...))
})
}
func TestAppCall(t *testing.T) {
const srcDynApp = `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/engine"
func Main(h []byte) []byte {
x := []byte{1, 2}
y := []byte{3, 4}
result := engine.DynAppCall(h, x, y)
return result.([]byte)
}
`
var hasDynamicInvoke bool
srcInner := `
package foo
func Main(a []byte, b []byte) []byte {
return append(a, b...)
}
`
inner, err := compiler.Compile(strings.NewReader(srcInner))
require.NoError(t, err)
dynapp, err := compiler.Compile(strings.NewReader(srcDynApp))
require.NoError(t, err)
ih := hash.Hash160(inner)
dh := hash.Hash160(dynapp)
getScript := func(u util.Uint160) ([]byte, bool) {
if u.Equals(ih) {
return inner, true
}
if u.Equals(dh) {
return dynapp, hasDynamicInvoke
}
return nil, false
}
dynEntryScript := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/engine"
func Main(h []byte) interface{} {
return engine.AppCall(` + fmt.Sprintf("%#v", dh.BytesBE()) + `, h)
}
`
dynentry, err := compiler.Compile(strings.NewReader(dynEntryScript))
require.NoError(t, err)
t.Run("valid script", func(t *testing.T) {
src := getAppCallScript(fmt.Sprintf("%#v", ih.BytesBE()))
v := vmAndCompile(t, src)
v.SetScriptGetter(getScript)
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("missing script", func(t *testing.T) {
h := ih
h[0] = ^h[0]
src := getAppCallScript(fmt.Sprintf("%#v", h.BytesBE()))
v := vmAndCompile(t, src)
v.SetScriptGetter(getScript)
require.Error(t, v.Run())
})
t.Run("invalid script address", func(t *testing.T) {
src := getAppCallScript("[]byte{1, 2, 3}")
_, err := compiler.Compile(strings.NewReader(src))
require.Error(t, err)
})
t.Run("convert from string constant", func(t *testing.T) {
src := `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/engine"
const scriptHash = ` + fmt.Sprintf("%#v", string(ih.BytesBE())) + `
func Main() []byte {
x := []byte{1, 2}
y := []byte{3, 4}
result := engine.AppCall([]byte(scriptHash), x, y)
return result.([]byte)
}
`
v := vmAndCompile(t, src)
v.SetScriptGetter(getScript)
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("dynamic", func(t *testing.T) {
t.Run("valid script", func(t *testing.T) {
hasDynamicInvoke = true
v := vm.New()
v.Load(dynentry)
v.SetScriptGetter(getScript)
v.Estack().PushVal(ih.BytesBE())
require.NoError(t, v.Run())
assertResult(t, v, []byte{1, 2, 3, 4})
})
t.Run("invalid script", func(t *testing.T) {
hasDynamicInvoke = true
v := vm.New()
v.Load(dynentry)
v.SetScriptGetter(getScript)
v.Estack().PushVal([]byte{1})
require.Error(t, v.Run())
})
t.Run("no dynamic invoke", func(t *testing.T) {
hasDynamicInvoke = false
v := vm.New()
v.Load(dynentry)
v.SetScriptGetter(getScript)
v.Estack().PushVal(ih.BytesBE())
require.Error(t, v.Run())
})
})
}
func getAppCallScript(h string) string {
return `
package foo
import "github.com/nspcc-dev/neo-go/pkg/interop/engine"
func Main() []byte {
x := []byte{1, 2}
y := []byte{3, 4}
result := engine.AppCall(` + h + `, x, y)
return result.([]byte)
}
`
}