added a test that the feedback is saved to the db as expected

server/backend/device.go

@@ -22,6 +22,15 @@ type deviceBuffer struct {
 	interval time.Duration             // flush interval
 }
 
+func newDeviceBuffer() *deviceBuffer {
+	return &deviceBuffer{
+		lock:     sync.Mutex{},
+		devices:  make(map[string]*model.Devices),
+		interval: time.Minute,
+	}
+
+}
+
 func (s *CampusServer) RunDeviceFlusher() error {
 	for {
 		time.Sleep(s.deviceBuf.interval)

server/backend/feedback_test.go

@@ -0,0 +1,80 @@
+package backend
+
+import (
+	"context"
+	"database/sql"
+	"github.com/DATA-DOG/go-sqlmock"
+	pb "github.com/TUM-Dev/Campus-Backend/server/api"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/protobuf/types/known/emptypb"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"regexp"
+	"testing"
+	"time"
+)
+
+type FeedbackSuite struct {
+	suite.Suite
+	DB        *gorm.DB
+	mock      sqlmock.Sqlmock
+	deviceBuf *deviceBuffer
+}
+
+func (s *FeedbackSuite) SetupSuite() {
+	var (
+		db  *sql.DB
+		err error
+	)
+
+	db, s.mock, err = sqlmock.New()
+	require.NoError(s.T(), err)
+
+	dialector := mysql.New(mysql.Config{
+		Conn:       db,
+		DriverName: "mysql",
+	})
+	s.mock.ExpectQuery("SELECT VERSION()").
+		WillReturnRows(sqlmock.NewRows([]string{"VERSION()"}).AddRow("10.11.4-MariaDB"))
+	s.DB, err = gorm.Open(dialector, &gorm.Config{})
+	require.NoError(s.T(), err)
+
+	s.deviceBuf = newDeviceBuffer()
+}
+
+func (s *FeedbackSuite) Test_SendFeedback() {
+	req := &pb.SendFeedbackRequest{
+		Topic:      "tca",
+		Email:      "[email protected]",
+		EmailId:    "magic-id",
+		Message:    "This is a Test",
+		ImageCount: 1,
+		Latitude:   0,
+		Longitude:  0,
+		OsVersion:  "Android 10.0",
+		AppVersion: "TCA 10.2",
+	}
+	s.mock.ExpectBegin()
+	s.mock.ExpectQuery(regexp.QuoteMeta(
+		"INSERT INTO `feedback` (`image_count`,`email_id`,`receiver`,`reply_to`,`feedback`,`latitude`,`longitude`,`os_version`,`app_version`,`processed`) VALUES (?,?,?,?,?,?,?,?,?,?) RETURNING `timestamp`,`id`")).
+		WithArgs(req.ImageCount, req.EmailId, "[email protected]", req.Email, req.Message, req.Latitude, req.Longitude, req.OsVersion, req.AppVersion, false).
+		WillReturnRows(sqlmock.NewRows([]string{"timestamp", "id"}).AddRow(time.Time{}, 1))
+	s.mock.ExpectCommit()
+
+	meta := metadata.MD{}
+	server := CampusServer{db: s.DB, deviceBuf: s.deviceBuf}
+	response, err := server.SendFeedback(metadata.NewIncomingContext(context.Background(), meta), req)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), &emptypb.Empty{}, response)
+}
+func (s *FeedbackSuite) AfterTest(_, _ string) {
+	require.NoError(s.T(), s.mock.ExpectationsWereMet())
+}
+
+// In order for 'go test' to run this suite, we need to create
+// a normal test function and pass our suite to suite.Run
+func TestExampleTestSuite(t *testing.T) {
+	suite.Run(t, new(FeedbackSuite))
+}

server/backend/rpcserver.go

@@ -16,8 +16,6 @@ import (
 	"google.golang.org/protobuf/types/known/timestamppb"
 	"gorm.io/gorm"
 	"net"
-	"sync"
-	"time"
 )
 
 func (s *CampusServer) GRPCServe(l net.Listener) error {
@@ -44,12 +42,8 @@ func New(db *gorm.DB) *CampusServer {
 	initTagRatingOptions(db)
 
 	return &CampusServer{
-		db: db,
-		deviceBuf: &deviceBuffer{
-			lock:     sync.Mutex{},
-			devices:  make(map[string]*model.Devices),
-			interval: time.Minute,
-		},
+		db:                      db,
+		deviceBuf:               newDeviceBuffer(),
 		iOSNotificationsService: NewIOSNotificationsService(),
 	}
 }

server/go.mod

@@ -3,6 +3,7 @@ module github.com/TUM-Dev/Campus-Backend/server
 go 1.18
 
 require (
+	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/disintegration/imaging v1.6.2
 	github.com/gabriel-vasile/mimetype v1.4.2
 	github.com/getsentry/sentry-go v0.23.0

server/go.sum

@@ -1,3 +1,5 @@
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
+github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/PuerkitoBio/goquery v1.8.0 h1:PJTF7AmFCFKk1N6V6jmKfrNH9tV5pNE6lZMkG0gta/U=
 github.com/PuerkitoBio/goquery v1.8.0/go.mod h1:ypIiRMtY7COPGk+I/YbZLbxsxn9g5ejnI2HSMtkjZvI=
 github.com/andybalholm/cascadia v1.3.1 h1:nhxRkql1kdYCc8Snf7D5/D3spOX+dBgjA6u8x004T2c=