*/

package fieldpath

import (
	"fmt"
	"sort"
	"strconv"
	"strings"

	"k8s.io/apimachinery/pkg/api/meta"
	"k8s.io/apimachinery/pkg/util/validation"
)

// FormatMap formats map[string]string to a string.
func FormatMap(m map[string]string) (fmtStr string) {
	// output with keys in sorted order to provide stable output
	keys := make([]string, 0, len(m))
	var grow int
	for k, v := range m {

node.alpha.kubernetes.io/ttl="0"
volumes.kubernetes.io/controller-managed-attach-detach="true"`,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if gotFmtStr := FormatMap(tt.args.m); gotFmtStr != tt.wantFmtStr {
				t.Errorf("FormatMap() = %v, want %v", gotFmtStr, tt.wantFmtStr)
			}
		})
	}

			// Using the function kubernetes actually uses to write this, we do a round trip of
			// map -> file -> map and ensure the input and output are the same
			got, err := ParseDownwardAPI(fieldpath.FormatMap(tt.m))
			if !reflect.DeepEqual(got, tt.m) {
				t.Fatalf("expected %v, got %v with err: %v", tt.m, got, err)
			}
		})
	}
}

func TestGetNodeMetaData(t *testing.T) {
	inputOwner := "test"

}

type verifyMapInFile struct {
	stepName
	expected map[string]string
}

func (step verifyMapInFile) run(test *downwardAPITest) {
	doVerifyLinesInFile(test.t, test.volumePath, step.name, fieldpath.FormatMap(step.expected))
}

type verifyMode struct {
	stepName
	expectedMode int32
}

func (step verifyMode) run(test *downwardAPITest) {
	fileInfo, err := os.Stat(filepath.Join(test.volumePath, step.name))

- Fixed incorrect log information in the `iptables` utility. ([#110723](https://github.com/kubernetes/kubernetes/pull/110723), [@yangjunmyfm192085](https://github.com/yangjunmyfm192085))
- Improved FormatMap: Improves performance by about 4x, or nearly 2x in the worst case ([#112661](https://github.com/kubernetes/kubernetes/pull/112661), [@aimuz](https://github.com/aimuz)) [SIG Node]