Implement database integration tests

api/test_utils/test_db_manager.go

@@ -0,0 +1,60 @@
+package test_utils
+
+import (
+	"github.com/photoview/photoview/api/database"
+	"github.com/pkg/errors"
+	"gorm.io/gorm"
+)
+
+type TestDBManager struct {
+	DB *gorm.DB
+}
+
+func (dbm *TestDBManager) SetupOrReset() error {
+	if dbm.DB == nil {
+		return dbm.setup()
+	} else {
+		return dbm.reset()
+	}
+}
+
+func (dbm *TestDBManager) Close() error {
+	if dbm.DB == nil {
+		return nil
+	}
+
+	sqlDB, err := dbm.DB.DB()
+	if err != nil {
+		return errors.Wrap(err, "get db instance when closing test database")
+	}
+
+	sqlDB.Close()
+	dbm.DB = nil
+
+	return nil
+}
+
+func (dbm *TestDBManager) setup() error {
+	config := gorm.Config{}
+	db, err := database.ConfigureDatabase(&config)
+	if err != nil {
+		return errors.Wrap(err, "configure test database")
+	}
+
+	if err := database.MigrateDatabase(db); err != nil {
+		return errors.Wrap(err, "migrate test database")
+	}
+
+	dbm.DB = db
+
+	return nil
+}
+
+func (dbm *TestDBManager) reset() error {
+
+	if err := database.ClearDatabase(dbm.DB); err != nil {
+		return errors.Wrap(err, "reset test database")
+	}
+
+	return nil
+}