qrg: Fix linter errors

pkg/qrcodegenerator/grpc_gateways.go

@@ -28,7 +28,10 @@ type gatewayQRCodeGeneratorServer struct {
 }
 
 // GetFormat implements EndDeviceQRCodeGenerator.
-func (s *gatewayQRCodeGeneratorServer) GetFormat(ctx context.Context, req *ttnpb.GetQRCodeFormatRequest) (*ttnpb.QRCodeFormat, error) {
+func (s *gatewayQRCodeGeneratorServer) GetFormat(
+	ctx context.Context,
+	req *ttnpb.GetQRCodeFormatRequest,
+) (*ttnpb.QRCodeFormat, error) {
 	_, err := rpcmetadata.WithForwardedAuth(ctx, s.QRG.AllowInsecureForCredentials())
 	if err != nil {
 		return nil, err
@@ -41,7 +44,10 @@ func (s *gatewayQRCodeGeneratorServer) GetFormat(ctx context.Context, req *ttnpb
 }
 
 // Parse implements EndDeviceQRCodeGenerator.
-func (s *gatewayQRCodeGeneratorServer) Parse(ctx context.Context, req *ttnpb.ParseGatewayQRCodeRequest) (*ttnpb.ParseGatewayQRCodeResponse, error) {
+func (s *gatewayQRCodeGeneratorServer) Parse(
+	ctx context.Context,
+	req *ttnpb.ParseGatewayQRCodeRequest,
+) (*ttnpb.ParseGatewayQRCodeResponse, error) {
 	_, err := rpcmetadata.WithForwardedAuth(ctx, s.QRG.AllowInsecureForCredentials())
 	if err != nil {
 		return nil, err

pkg/qrcodegenerator/grpc_gateways_test.go

@@ -22,7 +22,8 @@ import (
 	componenttest "go.thethings.network/lorawan-stack/v3/pkg/component/test"
 	"go.thethings.network/lorawan-stack/v3/pkg/errors"
 	"go.thethings.network/lorawan-stack/v3/pkg/log"
-	. "go.thethings.network/lorawan-stack/v3/pkg/qrcodegenerator"
+	"go.thethings.network/lorawan-stack/v3/pkg/qrcodegenerator"
+
 	"go.thethings.network/lorawan-stack/v3/pkg/qrcodegenerator/qrcode/gateways"
 	"go.thethings.network/lorawan-stack/v3/pkg/ttnpb"
 	"go.thethings.network/lorawan-stack/v3/pkg/util/test"
@@ -35,7 +36,10 @@ func TestGatewayQRCodeParsing(t *testing.T) {
 
 	c := componenttest.NewComponent(t, &component.Config{})
 	ttigpro1 := new(gateways.TTIGPRO1Format)
-	qrg, err := New(c, &Config{}, WithGatewayFormat(ttigpro1.ID(), ttigpro1))
+	qrg, err := qrcodegenerator.New(c,
+		&qrcodegenerator.Config{},
+		qrcodegenerator.WithGatewayFormat(ttigpro1.ID(), ttigpro1),
+	)
 	test.Must(qrg, err)
 
 	componenttest.StartComponent(t, c)
@@ -45,6 +49,7 @@ func TestGatewayQRCodeParsing(t *testing.T) {
 
 	client := ttnpb.NewGatewayQRCodeGeneratorClient(c.LoopbackConn())
 
+	//nolint:parralleltest
 	for _, tc := range []struct {
 		Name      string
 		FormatID  string

pkg/qrcodegenerator/qrcode/gateways/gateways.go

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// Package gateways provides a QR code parser for gateways.
 package gateways
 
 import (
@@ -55,13 +56,13 @@ type Server struct {
 }
 
 // New returns a new Server.
-func New(ctx context.Context) *Server {
+func New(_ context.Context) *Server {
 	s := &Server{
 		// Newer formats should be added to this slice first to
 		// preferentially match with those first.
 		gatewayFormats: []gatewayFormat{
 			{
-				id:     formatIDttigpro1,
+				id:     formatIDTTIGPRO1,
 				format: new(TTIGPRO1Format),
 			},
 		},

pkg/qrcodegenerator/qrcode/gateways/gateways_test.go

@@ -20,12 +20,14 @@ import (
 	"testing"
 
 	"github.com/smarty/assertions"
-	. "go.thethings.network/lorawan-stack/v3/pkg/qrcodegenerator/qrcode/gateways"
+	"go.thethings.network/lorawan-stack/v3/pkg/qrcodegenerator/qrcode/gateways"
 	"go.thethings.network/lorawan-stack/v3/pkg/util/test"
 	"go.thethings.network/lorawan-stack/v3/pkg/util/test/assertions/should"
 )
 
 func TestParseGatewaysAuthenticationCodes(t *testing.T) {
+	t.Parallel()
+
 	for i, tc := range []struct {
 		FormatID string
 		Data     []byte
@@ -39,10 +41,13 @@ func TestParseGatewaysAuthenticationCodes(t *testing.T) {
 			ExpectedOwnerToken: "abcdef123456",
 		},
 	} {
+		tc := tc
+
 		t.Run(strconv.Itoa(i), func(t *testing.T) {
+			t.Parallel()
 			a := assertions.New(t)
 
-			qrCode := New(context.Background())
+			qrCode := gateways.New(context.Background())
 
 			d, err := qrCode.Parse(tc.FormatID, tc.Data)
 			data := test.Must(d, err)

pkg/qrcodegenerator/qrcode/gateways/ttigpro1.go

@@ -22,7 +22,7 @@ import (
 )
 
 const (
-	formatIDttigpro1 = "ttigpro1"
+	formatIDTTIGPRO1 = "ttigpro1"
 
 	euiLength        = 16
 	ownerTokenLength = 12
@@ -35,7 +35,7 @@ type ttigpro1 struct {
 }
 
 // ttigpro1Regex is the regular expression to match the TTIGPRO1 format.
-// The format is as follows: https://ttig.pro/c/{16 lowercase base16 chars}/{12 base62 chars}
+// The format is as follows: https://ttig.pro/c/{16 lowercase base16 chars}/{12 base62 chars}.
 var ttigpro1Regex = regexp.MustCompile(`^https://ttig\.pro/c/([a-f0-9]{16})/([a-z0-9]{12})$`)
 
 // UnmarshalText implements the TextUnmarshaler interface.
@@ -60,16 +60,16 @@ func (m *ttigpro1) UnmarshalText(text []byte) error {
 }
 
 // FormatID implements the Data interface.
-func (m *ttigpro1) FormatID() string {
-	return formatIDttigpro1
+func (*ttigpro1) FormatID() string {
+	return formatIDTTIGPRO1
 }
 
 func (m *ttigpro1) GatewayEUI() types.EUI64 {
 	return m.gatewayEUI
 }
 
 func (m *ttigpro1) OwnerToken() string {
-	return string(m.ownerToken)
+	return m.ownerToken
 }
 
 // TTIGPRO1Format implements the TTIGPRO1 Format.
@@ -79,7 +79,7 @@ type TTIGPRO1Format struct{}
 func (TTIGPRO1Format) Format() *ttnpb.QRCodeFormat {
 	return &ttnpb.QRCodeFormat{
 		Name:        "TTIGPRO1",
-		Description: "TTI QR code format for gateway devices.",
+		Description: "QR code format for The Things Indoor Gateway Pro.",
 		FieldMask: ttnpb.FieldMask(
 			"ids.eui",
 			"claim_authentication_code.secret.value",
@@ -89,7 +89,7 @@ func (TTIGPRO1Format) Format() *ttnpb.QRCodeFormat {
 
 // ID is the identifier of the format as a string.
 func (TTIGPRO1Format) ID() string {
-	return formatIDttigpro1
+	return formatIDTTIGPRO1
 }
 
 // New implements the Format interface.

pkg/qrcodegenerator/qrcode/gateways/ttigpro1_test.go

@@ -24,7 +24,11 @@ import (
 )
 
 func TestTTIGPRO1(t *testing.T) {
+	t.Parallel()
+
 	t.Run("Decode", func(t *testing.T) {
+		t.Parallel()
+
 		for _, tc := range []struct {
 			Name           string
 			Data           []byte
@@ -43,46 +47,55 @@ func TestTTIGPRO1(t *testing.T) {
 				Name: "InvalidURLPrefix",
 				Data: []byte("https://example.com/c/ec656efffe000128/abcdef12"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 			{
 				Name: "Invalid/EUINotLowercase",
 				Data: []byte("https://ttig.pro/c/EC656effFe000128/abcdef12"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 			{
 				Name: "Invalid/EUILength",
 				Data: []byte("https://ttig.pro/c/ec656efffe00012/abcdef12"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 			{
 				Name: "Invalid/EUINotBase16",
 				Data: []byte("https://ttig.pro/c/ec656efffe00012g/abcdef12"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 			{
 				Name: "Invalid/OwnerTokenLength",
 				Data: []byte("https://ttig.pro/c/ec656efffe000128/abcdef123"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 			{
 				Name: "Invalid/OwnerTokenNotBase62",
 				Data: []byte("https://ttig.pro/c/ec656efffe000128/abcdef12!"),
 				ErrorAssertion: func(t *testing.T, err error) bool {
+					t.Helper()
 					return assertions.New(t).So(errors.IsInvalidArgument(err), should.BeTrue)
 				},
 			},
 		} {
+			tc := tc
 			t.Run(tc.Name, func(t *testing.T) {
+				t.Parallel()
+
 				a := assertions.New(t)
 
 				var data ttigpro1

pkg/qrcodegenerator/qrcodegenerator.go

@@ -103,6 +103,6 @@ func (qrg *QRCodeGenerator) RegisterServices(s *grpc.Server) {
 
 // RegisterHandlers registers gRPC handlers.
 func (qrg *QRCodeGenerator) RegisterHandlers(s *runtime.ServeMux, conn *grpc.ClientConn) {
-	ttnpb.RegisterEndDeviceQRCodeGeneratorHandler(qrg.Context(), s, conn)
-	ttnpb.RegisterGatewayQRCodeGeneratorHandler(qrg.Context(), s, conn)
+	ttnpb.RegisterEndDeviceQRCodeGeneratorHandler(qrg.Context(), s, conn) //nolint:errcheck
+	ttnpb.RegisterGatewayQRCodeGeneratorHandler(qrg.Context(), s, conn)   //nolint:errcheck
 }