RetryPeriod:       metav1.Duration{Duration: 5 * time.Second},
					ResourceName:      "kube-controller-manager",
					ResourceNamespace: "kube-system",
				},
				Controllers: []string{"foo", "bar"},
			},
			Debugging: &cmoptions.DebuggingOptions{
				DebuggingConfiguration: &componentbaseconfig.DebuggingConfiguration{
					EnableProfiling:           false,
					EnableContentionProfiling: true,
				},
			},

				esController.podStore.Add(p)
				esController.addPod(p)
			}

			time.Sleep(tc.finalDelay)
			assert.Len(t, client.Actions(), tc.wantRequestCount)
			// In case of error, make debugging easier.
			for _, action := range client.Actions() {
				t.Logf("action: %v %v", action.GetVerb(), action.GetResource())
			}
		})
	}
}

	work.baseStacks = work.baseSpans + uint32(work.nSpanRoots)
	work.baseEnd = work.baseStacks + uint32(work.nStackRoots)
}

// gcMarkRootCheck checks that all roots have been scanned. It is
// purely for debugging.
func gcMarkRootCheck() {
	if work.markrootNext < work.markrootJobs {
		print(work.markrootNext, " of ", work.markrootJobs, " markroot jobs done\n")
		throw("left over markroot jobs")
	}

When debugging for tests is enabled, Gradle will start the test process suspended and listening on port 5005.

You can also enable debugging in the DSL, where you can also configure other properties:

    test {
        debugOptions {
            enabled = true
            host = 'localhost'

}

var pendingPodsSummary = "activeQ:%v; backoffQ:%v; unschedulablePods:%v"

// PendingPods returns all the pending pods in the queue; accompanied by a debugging string
// recording showing the number of pods in each queue respectively.
// This function is used for debugging purposes in the scheduler cache dumper and comparer.
func (p *PriorityQueue) PendingPods() ([]*v1.Pod, string) {
	p.lock.RLock()
	defer p.lock.RUnlock()

  $win_ver | Add-Member -MemberType NoteProperty -Name Revision -Value $(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion' UBR).UBR
  return $win_ver
}

# Writes debugging information, such as Windows version and patch info, to the
# console.
function Dump-DebugInfoToConsole {
  Try {
    $version = Get_WindowsVersion | Out-String
    $hotfixes = "$(Get-Hotfix | Out-String)"

	// such as Wireshark to decrypt TLS connections.
	// See https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format.
	// Use of KeyLogWriter compromises security and should only be
	// used for debugging.
	KeyLogWriter io.Writer

	// EncryptedClientHelloConfigList is a serialized ECHConfigList. If
	// provided, clients will attempt to connect to servers using Encrypted

	// corner case errors for which introducing new APIErrorCode is not worth it. LogIf()
	// should be used to log the error at the source of the error for debugging purposes.
	ErrInvalidRequest: {
		Code:           "InvalidRequest",
		Description:    "Invalid Request",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrHealNotImplemented: {

			// Force eager resolution to work around.
			argv = append(argv, "-Wl,-flat_namespace", "-Wl,-bind_at_load")
		}
		if !combineDwarf {
			argv = append(argv, "-Wl,-S") // suppress STAB (symbolic debugging) symbols
			if debug_s {
				// We are generating a binary with symbol table suppressed.
				// Suppress local symbols. We need to keep dynamically exported

	}
	if u := cm.proxyURL.User; u != nil {
		username := u.Username()
		password, _ := u.Password()
		return "Basic " + basicAuth(username, password)
	}
	return ""
}

// error values for debugging and testing, not seen by users.
var (
	errKeepAlivesDisabled = errors.New("http: putIdleConn: keep alives disabled")
	errConnBroken         = errors.New("http: putIdleConn: connection is in bad state")