neoneo-go/pkg/compiler/verify_test.go

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package compiler_test
import (
"fmt"
"testing"
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// In this test we only check that needed interop
// is called with the provided arguments in the right order.
func TestVerifyGood(t *testing.T) {
msg := []byte("test message")
pub, sig := signMessage(t, msg)
src := getVerifyProg(pub, sig)
v, p := vmAndCompileInterop(t, src)
p.interops[interopnames.ToID([]byte(interopnames.NeoCryptoCheckSig))] = func(v *vm.VM) error {
assert.Equal(t, pub, v.Estack().Pop().Bytes())
assert.Equal(t, sig, v.Estack().Pop().Bytes())
v.Estack().PushVal(true)
return nil
}
require.NoError(t, v.Run())
}
func signMessage(t *testing.T, msg []byte) ([]byte, []byte) {
key, err := keys.NewPrivateKey()
require.NoError(t, err)
sig := key.Sign(msg)
pub := key.PublicKey().Bytes()
return pub, sig
}
func getVerifyProg(pub, sig []byte) string {
pubS := fmt.Sprintf("%#v", pub)
sigS := fmt.Sprintf("%#v", sig)
return `
package hello
import "github.com/nspcc-dev/neo-go/pkg/interop/crypto"
func Main() bool {
pub := ` + pubS + `
sig := ` + sigS + `
return crypto.CheckSig(pub, sig)
}
`
}