neo-go/pkg/compiler/interop_test.go
2020-03-10 17:17:36 +03:00

134 lines
3 KiB
Go

package compiler_test
import (
"fmt"
"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/stretchr/testify/require"
)
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) {
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)
ih := hash.Hash160(inner)
getScript := func(u util.Uint160) ([]byte, bool) {
if u.Equals(ih) {
return inner, true
}
return nil, false
}
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})
})
}
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)
}
`
}