error in db code, closing database before usage

Backend/database.go

@@ -5,10 +5,8 @@ import (
 	"arbeitszeitmessung/models"
 	"database/sql"
 	"fmt"
-	"log"
 
-	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/lib/pq"
-	_ "github.com/golang-migrate/migrate/v4/source/file"
 )
 
 func OpenDatabase() (models.IDatabase, error) {
@@ -18,18 +16,5 @@ func OpenDatabase() (models.IDatabase, error) {
 	dbPassword := helper.GetEnv("POSTGRES_API_PASS", "password")
 
 	connStr := fmt.Sprintf("postgres://%s:%s@%s:5432/%s?sslmode=disable&TimeZone=Europe/Berlin", dbUser, dbPassword, dbHost, dbName)
-	db, err := sql.Open("postgres", connStr)
+	return sql.Open("postgres", connStr)
-	if err != nil {
-		return nil, err
-	}
-	defer db.Close()
-	return db, err
-}
-
-func MigrateDB(db models.IDatabase, connStr string) {
-	m, err := migrate.New("file:///../migrations/", connStr)
-	if err != nil {
-		log.Fatalln("Error starting migration", err)
-	}
-	m.Up()
 }

Backend/models/db_test.go

@@ -36,10 +36,10 @@ func SetupDBFixture(t *testing.T) *DBFixture {
 		t.Fatalf("failed to connect to database: %v", err)
 	}
 
-	err = MigrateDB(db, "file://../../migrations")
+	// err = MigrateDB(db, "file://../../migrations")
-	if err != nil && err != migrate.ErrNoChange {
+	// if err != nil && err != migrate.ErrNoChange {
-		t.Fatalf("Failed to migrate database: %v", err)
+	// 	t.Fatalf("Failed to migrate database: %v", err)
-	}
+	// }
 
 	tx, err := db.Begin()
 	if err != nil {

Backend/models/user_test.go

@@ -44,12 +44,12 @@ func TestCheckAnwesenheit(t *testing.T) {
 	if actual = testUser.CheckAnwesenheit(); actual != false {
 		t.Errorf("Checkabwesenheit with no booking should be false but is %t", actual)
 	}
-	tc.Database.Exec("INSERT INTO anwesenheit (timestamp, card_uid, check_in_out, geraet_id) VALUES (NOW() - INTERVAL '2 hour', 'aaaa-aaaa', 1, 1);")
+	tc.Database.Exec("INSERT INTO anwesenheit (timestamp, card_uid, check_in_out, geraet_id) VALUES (NOW() - INTERVAL '2 minute', 'aaaa-aaaa', 1, 1);")
 	if actual = testUser.CheckAnwesenheit(); actual != true {
 		t.Errorf("Checkabwesenheit with 'kommen' booking should be true but is %t", actual)
 	}
 
-	tc.Database.Exec("INSERT INTO anwesenheit (timestamp, card_uid, check_in_out, geraet_id) VALUES (NOW() - INTERVAL '1 hour', 'aaaa-aaaa', 2, 1);")
+	tc.Database.Exec("INSERT INTO anwesenheit (timestamp, card_uid, check_in_out, geraet_id) VALUES (NOW() - INTERVAL '1 minute', 'aaaa-aaaa', 2, 1);")
 	if actual = testUser.CheckAnwesenheit(); actual != false {
 		t.Errorf("Checkabwesenheit with 'gehen' booking should be false but is %t", actual)
 	}