service: transfer TTL code to a separate file

service/meta_test.go

@@ -3,92 +3,9 @@ package service
 import (
 	"testing"
 
-	"github.com/pkg/errors"
 	"github.com/stretchr/testify/require"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
 )
 
-type mockedRequest struct {
-	msg     string
-	name    string
-	code    codes.Code
-	handler TTLCondition
-	RequestMetaHeader
-}
-
-func TestMetaRequest(t *testing.T) {
-	tests := []mockedRequest{
-		{
-			name:              "direct to ir node",
-			handler:           IRNonForwarding(InnerRingNode),
-			RequestMetaHeader: RequestMetaHeader{TTL: NonForwardingTTL},
-		},
-		{
-			code:              codes.InvalidArgument,
-			msg:               ErrInvalidTTL.Error(),
-			name:              "direct to storage node",
-			handler:           IRNonForwarding(StorageNode),
-			RequestMetaHeader: RequestMetaHeader{TTL: NonForwardingTTL},
-		},
-		{
-			msg:               ErrInvalidTTL.Error(),
-			code:              codes.InvalidArgument,
-			name:              "zero ttl",
-			handler:           IRNonForwarding(StorageNode),
-			RequestMetaHeader: RequestMetaHeader{TTL: ZeroTTL},
-		},
-		{
-			name:              "default to ir node",
-			handler:           IRNonForwarding(InnerRingNode),
-			RequestMetaHeader: RequestMetaHeader{TTL: SingleForwardingTTL},
-		},
-		{
-			name:              "default to storage node",
-			handler:           IRNonForwarding(StorageNode),
-			RequestMetaHeader: RequestMetaHeader{TTL: SingleForwardingTTL},
-		},
-		{
-			msg:               "not found",
-			code:              codes.NotFound,
-			name:              "custom status error",
-			RequestMetaHeader: RequestMetaHeader{TTL: SingleForwardingTTL},
-			handler:           func(_ uint32) error { return status.Error(codes.NotFound, "not found") },
-		},
-		{
-			msg:               "not found",
-			code:              codes.NotFound,
-			name:              "custom wrapped status error",
-			RequestMetaHeader: RequestMetaHeader{TTL: SingleForwardingTTL},
-			handler: func(_ uint32) error {
-				err := status.Error(codes.NotFound, "not found")
-				err = errors.Wrap(err, "some error context")
-				err = errors.Wrap(err, "another error context")
-				return err
-			},
-		},
-	}
-
-	for i := range tests {
-		tt := tests[i]
-		t.Run(tt.name, func(t *testing.T) {
-			before := tt.GetTTL()
-			err := ProcessRequestTTL(&tt, tt.handler)
-			if tt.msg != "" {
-				require.Errorf(t, err, tt.msg)
-
-				state, ok := status.FromError(err)
-				require.True(t, ok)
-				require.Equal(t, tt.code, state.Code())
-				require.Equal(t, tt.msg, state.Message())
-			} else {
-				require.NoError(t, err)
-				require.NotEqualf(t, before, tt.GetTTL(), "ttl should be changed: %d vs %d", before, tt.GetTTL())
-			}
-		})
-	}
-}
-
 func TestRequestMetaHeader_SetEpoch(t *testing.T) {
 	m := new(ResponseMetaHeader)
 	epoch := uint64(3)