[#1522] adm/helper: Unexport GetFrostfsIDAdmin()

It is used in `helper` package only, besides unit-tests.
Move unit-tests to the same package, where they belong.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

cmd/frostfs-adm/internal/modules/morph/frostfsid/frostfsid_util_test.go

@@ -1,59 +1,12 @@
 package frostfsid
 
 import (
-	"encoding/hex"
 	"testing"
 
-	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/helper"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/ape"
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
-	"github.com/spf13/viper"
 	"github.com/stretchr/testify/require"
 )
 
-func TestFrostfsIDConfig(t *testing.T) {
-	pks := make([]*keys.PrivateKey, 4)
-	for i := range pks {
-		pk, err := keys.NewPrivateKey()
-		require.NoError(t, err)
-		pks[i] = pk
-	}
-
-	fmts := []string{
-		pks[0].GetScriptHash().StringLE(),
-		address.Uint160ToString(pks[1].GetScriptHash()),
-		hex.EncodeToString(pks[2].PublicKey().UncompressedBytes()),
-		hex.EncodeToString(pks[3].PublicKey().Bytes()),
-	}
-
-	for i := range fmts {
-		v := viper.New()
-		v.Set("frostfsid.admin", fmts[i])
-
-		actual, found, err := helper.GetFrostfsIDAdmin(v)
-		require.NoError(t, err)
-		require.True(t, found)
-		require.Equal(t, pks[i].GetScriptHash(), actual)
-	}
-
-	t.Run("bad key", func(t *testing.T) {
-		v := viper.New()
-		v.Set("frostfsid.admin", "abc")
-
-		_, found, err := helper.GetFrostfsIDAdmin(v)
-		require.Error(t, err)
-		require.True(t, found)
-	})
-	t.Run("missing key", func(t *testing.T) {
-		v := viper.New()
-
-		_, found, err := helper.GetFrostfsIDAdmin(v)
-		require.NoError(t, err)
-		require.False(t, found)
-	})
-}
-
 func TestNamespaceRegexp(t *testing.T) {
 	for _, tc := range []struct {
 		name      string

cmd/frostfs-adm/internal/modules/morph/helper/contract.go

@@ -82,7 +82,7 @@ func GetContractDeployData(c *InitializeContext, ctrName string, keysParam []any
 			h, found, err = getFrostfsIDAdminFromContract(c.ReadOnlyInvoker)
 		}
 		if method != constants.UpdateMethodName || err == nil && !found {
-			h, found, err = GetFrostfsIDAdmin(viper.GetViper())
+			h, found, err = getFrostfsIDAdmin(viper.GetViper())
 		}
 		if err != nil {
 			return nil, err

cmd/frostfs-adm/internal/modules/morph/helper/frostfsid.go

@@ -11,7 +11,7 @@ import (
 
 const frostfsIDAdminConfigKey = "frostfsid.admin"
 
-func GetFrostfsIDAdmin(v *viper.Viper) (util.Uint160, bool, error) {
+func getFrostfsIDAdmin(v *viper.Viper) (util.Uint160, bool, error) {
 	admin := v.GetString(frostfsIDAdminConfigKey)
 	if admin == "" {
 		return util.Uint160{}, false, nil

cmd/frostfs-adm/internal/modules/morph/helper/frostfsid_test.go

@@ -0,0 +1,53 @@
+package helper
+
+import (
+	"encoding/hex"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFrostfsIDConfig(t *testing.T) {
+	pks := make([]*keys.PrivateKey, 4)
+	for i := range pks {
+		pk, err := keys.NewPrivateKey()
+		require.NoError(t, err)
+		pks[i] = pk
+	}
+
+	fmts := []string{
+		pks[0].GetScriptHash().StringLE(),
+		address.Uint160ToString(pks[1].GetScriptHash()),
+		hex.EncodeToString(pks[2].PublicKey().UncompressedBytes()),
+		hex.EncodeToString(pks[3].PublicKey().Bytes()),
+	}
+
+	for i := range fmts {
+		v := viper.New()
+		v.Set("frostfsid.admin", fmts[i])
+
+		actual, found, err := getFrostfsIDAdmin(v)
+		require.NoError(t, err)
+		require.True(t, found)
+		require.Equal(t, pks[i].GetScriptHash(), actual)
+	}
+
+	t.Run("bad key", func(t *testing.T) {
+		v := viper.New()
+		v.Set("frostfsid.admin", "abc")
+
+		_, found, err := getFrostfsIDAdmin(v)
+		require.Error(t, err)
+		require.True(t, found)
+	})
+	t.Run("missing key", func(t *testing.T) {
+		v := viper.New()
+
+		_, found, err := getFrostfsIDAdmin(v)
+		require.NoError(t, err)
+		require.False(t, found)
+	})
+}