t.Fatal("Unexpected error", err)
	}

	if err = mkdirAll(pathJoin(path, "success-vol", "success-object"), 0o777, ""); err != nil {
		t.Fatal("Unexpected error", err)
	}
}

// Tests - renameAll()
func TestOSRenameAll(t *testing.T) {
	// create xlStorage test setup
	_, path, err := newXLStorageTestSetup(t)
	if err != nil {

To signify the end of the stream, close the ring buffer from the writer side with `rb.CloseWriter()`

Either side can use `rb.CloseWithError(err error)` to signal an error and close the ring buffer. 
Any reads or writes will return the error on next call.

	NSScanner(ctx context.Context, cache dataUsageCache, updates chan<- dataUsageEntry, scanMode madmin.HealScanMode, shouldSleep func() bool) (dataUsageCache, error)

	// Volume operations.
	MakeVol(ctx context.Context, volume string) (err error)
	MakeVolBulk(ctx context.Context, volumes ...string) (err error)
	ListVols(ctx context.Context) (vols []VolInfo, err error)

      }
    }

    override fun iterator() = error("unsupported")

    override fun offer(e: T) = error("unsupported")

    override fun peek(): T = error("unsupported")

    override fun offer(
      element: T,
      timeout: Long,
      unit: TimeUnit,
    ) = error("unsupported")

    override fun take() = error("unsupported")

	PutWithMeta(ctx context.Context, object string, r io.Reader, length int64, meta map[string]string) (remoteVersionID, error)
	Get(ctx context.Context, object string, rv remoteVersionID, opts WarmBackendGetOpts) (io.ReadCloser, error)
	Remove(ctx context.Context, object string, rv remoteVersionID) error
	InUse(ctx context.Context) (bool, error)
}

const probeObject = "probeobject"

	ReqErr  uint64                   `json:"kms_req_error"`   // Number of requests that failed with a defined error
	ReqFail uint64                   `json:"kms_req_failure"` // Number of requests that failed with an undefined error
	Latency map[time.Duration]uint64 `json:"kms_resp_time"`   // Latency histogram of all requests
}

var defaultLatencyBuckets = []time.Duration{

	}

	var result3 UserWithDelete
	if err := DB.Table("deleted_users").Unscoped().First(&result3, user.ID).Error; err != nil {
		t.Fatalf("failed to find record, got error %v", err)
	}

	if err := DB.Table("deleted_users").Unscoped().Delete(&result).Error; err != nil {
		t.Errorf("failed to delete user with unscoped, got error %v", err)
	}

	var result4 UserWithDelete

        collector.add(Problem.Severity.ERROR, "Error message", 10, 5, null);
        collector.add(Problem.Severity.WARNING, "Warning message", 15, 3, null);

        List<Problem> problems = collector.getProblems();
        assertEquals(2, problems.size(), "Should collect both problems");
        assertEquals(Problem.Severity.ERROR, problems.get(0).getSeverity(), "First problem should be ERROR");

			}

			switch {
			case test.expectedErr == nil:
				if err != nil {
					t.Errorf("error: expected = <nil>, got = %v", err)
				}
			case err == nil:
				t.Errorf("error: expected = %v, got = <nil>", test.expectedErr)
			case test.expectedErr.Error() != err.Error():
				t.Errorf("error: expected = %v, got = %v", test.expectedErr, err)
			}

			if err == nil {

pkg os, method (*Root) Lchown(string, int, int) error #67002
pkg os, method (*Root) Link(string, string) error #67002
pkg os, method (*Root) MkdirAll(string, fs.FileMode) error #67002
pkg os, method (*Root) ReadFile(string) ([]uint8, error) #73126
pkg os, method (*Root) Readlink(string) (string, error) #67002
pkg os, method (*Root) RemoveAll(string) error #67002