added Migrate Function for tests

Backend/models/db_test.go

@@ -1,10 +1,17 @@
 package models_test
 
 import (
+	"arbeitszeitmessung/helper"
 	"arbeitszeitmessung/models"
 	"database/sql"
+	"fmt"
+	"log"
 	"testing"
 
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
 	_ "github.com/lib/pq"
 )
 
@@ -16,11 +23,24 @@ type DBFixture struct {
 func SetupDBFixture(t *testing.T) *DBFixture {
 	t.Helper()
 
-	db, err := sql.Open("postgres", "postgres://postgres:password@localhost:5433/arbeitszeitmessung?sslmode=disable")
+	dbHost := helper.GetEnv("POSTGRES_HOST", "localhost")
+	dbPort := helper.GetEnv("POSTGRES_PORT", "5433")
+	dbName := helper.GetEnv("POSTGRES_DB", "arbeitszeitmessung")
+	dbUser := helper.GetEnv("POSTGRES_USER", "postgres")
+	dbPassword := helper.GetEnv("POSTGRES_PASSWORD", "password")
+
+	connStr := fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=disable&TimeZone=Europe/Berlin", dbUser, dbPassword, dbHost, dbPort, dbName)
+
+	db, err := sql.Open("postgres", connStr)
 	if err != nil {
 		t.Fatalf("failed to connect to database: %v", err)
 	}
 
+	err = MigrateDB(db, "file://../../migrations")
+	if err != nil && err != migrate.ErrNoChange {
+		t.Fatalf("Failed to migrate database: %v", err)
+	}
+
 	tx, err := db.Begin()
 	if err != nil {
 		t.Fatalf("Failed to start transaction: %v", err)
@@ -36,3 +56,14 @@ func SetupDBFixture(t *testing.T) *DBFixture {
 		TX:       tx,
 	}
 }
+
+func MigrateDB(db *sql.DB, fileUrl string) error {
+	driver, err := postgres.WithInstance(db, &postgres.Config{})
+	if err != nil {
+		log.Fatalln("Error starting migration", err)
+	}
+	m, err := migrate.NewWithDatabaseInstance(
+		fileUrl,
+		"postgres", driver)
+	return m.Up()
+}