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package server
import (
"math"
"testing"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/v14/internal/gitaly/config"
"gitlab.com/gitlab-org/gitaly/v14/internal/testhelper"
"gitlab.com/gitlab-org/gitaly/v14/internal/testhelper/testcfg"
"gitlab.com/gitlab-org/gitaly/v14/proto/go/gitalypb"
"golang.org/x/sys/unix"
)
func TestStorageDiskStatistics(t *testing.T) {
cfg := testcfg.Build(t)
cfg.Storages = append(cfg.Storages, config.Storage{Name: "broken", Path: "/does/not/exist"})
addr := runServer(t, cfg)
client := newServerClient(t, addr)
ctx := testhelper.Context(t)
c, err := client.DiskStatistics(ctx, &gitalypb.DiskStatisticsRequest{})
require.NoError(t, err)
require.Len(t, c.GetStorageStatuses(), len(cfg.Storages))
// used and available space may change so we check if it roughly matches (+/- 1GB)
avail, used := getSpaceStats(t, cfg.Storages[0].Path)
approxEqual(t, c.GetStorageStatuses()[0].Available, avail)
approxEqual(t, c.GetStorageStatuses()[0].Used, used)
require.Equal(t, cfg.Storages[0].Name, c.GetStorageStatuses()[0].StorageName)
require.Equal(t, int64(0), c.GetStorageStatuses()[1].Available)
require.Equal(t, int64(0), c.GetStorageStatuses()[1].Used)
require.Equal(t, cfg.Storages[1].Name, c.GetStorageStatuses()[1].StorageName)
}
func approxEqual(t *testing.T, a, b int64) {
const eps = 1024 * 1024 * 1024
require.Truef(t, math.Abs(float64(a-b)) < eps, "expected %d to be equal %d with epsilon %d", a, b, eps)
}
func getSpaceStats(t *testing.T, path string) (available int64, used int64) {
var stats unix.Statfs_t
err := unix.Statfs(path, &stats)
require.NoError(t, err)
// Redundant conversions to handle differences between unix families
available = int64(stats.Bavail) * int64(stats.Bsize) //nolint:unconvert,nolintlint
used = (int64(stats.Blocks) - int64(stats.Bfree)) * int64(stats.Bsize) //nolint:unconvert,nolintlint
return
}
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