Update tests
Update tests

Signed-off-by: Andrey Kuzmin <0ce9f951a58c96498b87208de1d23c6b941abbff@soundcloud.com>

GoogleCloudPlatform/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager,prometheus/alertmanager,prometheus/alertmanager