import (
	"database/sql"
	"testing"
)

// TestPostgreSQLRegistration checks if postgres driver
// is registered and fails otherwise.
func TestPostgreSQLRegistration(t *testing.T) {
	var found bool
	for _, drv := range sql.Drivers() {
		if drv == "postgres" {
			found = true
			break
		}
	}
	if !found {
		t.Fatal("postgres driver not registered")
	}
}

func TestPsqlTableNameValidation(t *testing.T) {

import (
	"database/sql"
	"testing"
)

// TestPostgreSQLRegistration checks if sql driver
// is registered and fails otherwise.
func TestMySQLRegistration(t *testing.T) {
	var found bool
	for _, drv := range sql.Drivers() {
		if drv == "mysql" {
			found = true
			break
		}
	}
	if !found {
		t.Fatal("mysql driver not registered")
	}

  // be a DNS subdomain (dots allowed, 253 characters). To ensure that
  // there are no conflicts with other CSI drivers on the cluster, the recommendation
  // is to use csisc-<uuid>, a generated name, or a reverse-domain name which ends
  // with the unique CSI driver name.
  //
  // Objects are namespaced.
  //

two parity drives, 100 MiB file takes only approximately 114 MiB.

Below is a list of data/parity drives and corresponding _approximate_ storage space usage on a 16 drive MinIO deployment. The field _storage
usage ratio_ is simply the drive space used by the file after erasure-encoding, divided by actual file size.

| Total Drives (N) | Data Drives (D) | Parity Drives (P) | Storage Usage Ratio |

If one or more drives are offline at the start of a PutObject or NewMultipartUpload operation the object will have additional data protection bits added automatically to provide additional safety for these objects.

### High availability

A stand-alone MinIO server would go down if the server hosting the drives goes offline. In contrast, a distributed MinIO setup with _m_ servers and _n_ drives will have your data safe as long as _m/2_ servers or _m*n_/2 or more drives are online.

}

func (m *MetricValues) setDriveBasicMetrics(drive madmin.Disk, labels []string) {
	m.Set(driveUsedBytes, float64(drive.UsedSpace), labels...)
	m.Set(driveFreeBytes, float64(drive.AvailableSpace), labels...)
	m.Set(driveTotalBytes, float64(drive.TotalSpace), labels...)
	m.Set(driveUsedInodes, float64(drive.UsedInodes), labels...)
	m.Set(driveFreeInodes, float64(drive.FreeInodes), labels...)

				Name:    v.Name,
				Deleted: v.Created,
			})
		}
	}

	return buckets, nil
}

func cloneDrives(drives map[string]StorageAPI) []StorageAPI {
	copyDrives := make([]StorageAPI, 0, len(drives))
	for _, drive := range drives {
		copyDrives = append(copyDrives, drive)
	}
	return copyDrives
}

func getBucketInfoLocal(ctx context.Context, bucket string, opts BucketOptions) (BucketInfo, error) {

		"Count of offline drives in the cluster")
	healthDrivesOnlineCountMD = NewGaugeMD(healthDrivesOnlineCount,
		"Count of online drives in the cluster")
	healthDrivesCountMD = NewGaugeMD(healthDrivesCount,
		"Count of all drives in the cluster")
)

// loadClusterHealthDriveMetrics - `MetricsLoaderFn` for cluster storage drive metrics
// such as online, offline and total drives.

	}

	return bytesWritten, derr
}

// Heal reads from readers, reconstruct shards and writes the data to the writers.
func (e Erasure) Heal(ctx context.Context, writers []io.Writer, readers []io.ReaderAt, totalLength int64, prefer []bool) (derr error) {
	if len(writers) != e.parityBlocks+e.dataBlocks {
		return errInvalidArgument
	}

	reader := newParallelReader(readers, e, 0, totalLength)

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package drive

import (
	"sync"
	"time"

	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
)

// Drive specific timeout environment variables
const (
	EnvMaxDriveTimeout       = "MINIO_DRIVE_MAX_TIMEOUT"
	EnvMaxDriveTimeoutLegacy = "_MINIO_DRIVE_MAX_TIMEOUT"