internal/testutils/envconfig.go

package testutils

/*
 *
 * Copyright 2025 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import (
	"testing"
)

// SetEnvConfig sets the value of the given variable to the specified value,
// taking care of restoring the original value after the test completes.
func SetEnvConfig[T any](t *testing.T, variable *T, value T) {
	t.Helper()
	old := *variable
	t.Cleanup(func() {
		*variable = old
	})
	*variable = value
}