Remove the wrappy layer.

kyaml/yaml/rnode.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"log"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -336,6 +337,33 @@ func (rn *RNode) SetYNode(node *yaml.Node) {
 	*rn.value = *node
 }
 
+// GetKind returns the kind.
+func (rn *RNode) GetKind() string {
+	node, err := rn.Pipe(FieldMatcher{Name: KindField})
+	if err != nil {
+		return ""
+	}
+	return GetValue(node)
+}
+
+// GetName returns the name.
+func (rn *RNode) GetName() string {
+	f := rn.Field(MetadataField)
+	if f.IsNilOrEmpty() {
+		return ""
+	}
+	f = f.Value.Field(NameField)
+	if f.IsNilOrEmpty() {
+		return ""
+	}
+	return f.Value.YNode().Value
+}
+
+// SetName sets the metadata name field.
+func (rn *RNode) SetName(name string) error {
+	return rn.SetMapField(NewScalarRNode(name), MetadataField, NameField)
+}
+
 // GetNamespace gets the metadata namespace field.
 func (rn *RNode) GetNamespace() (string, error) {
 	meta, err := rn.GetMeta()
@@ -752,7 +780,7 @@ func (rn *RNode) GetValidatedMetadata() (ResourceMeta, error) {
 	return m, nil
 }
 
-// MatchesAnnotationSelector implements ifc.Kunstructured.
+// MatchesAnnotationSelector returns true on a selector match to annotations.
 func (rn *RNode) MatchesAnnotationSelector(selector string) (bool, error) {
 	s, err := labels.Parse(selector)
 	if err != nil {
@@ -765,7 +793,7 @@ func (rn *RNode) MatchesAnnotationSelector(selector string) (bool, error) {
 	return s.Matches(labels.Set(slice)), nil
 }
 
-// MatchesLabelSelector implements ifc.Kunstructured.
+// MatchesLabelSelector returns true on a selector match to labels.
 func (rn *RNode) MatchesLabelSelector(selector string) (bool, error) {
 	s, err := labels.Parse(selector)
 	if err != nil {
@@ -859,3 +887,123 @@ func checkKey(key string, elems []*Node) bool {
 	}
 	return count == len(elems)
 }
+
+// Deprecated: use pipes instead.
+// GetSlice returns the contents of the slice field at the given path.
+func (rn *RNode) GetSlice(path string) ([]interface{}, error) {
+	value, err := rn.GetFieldValue(path)
+	if err != nil {
+		return nil, err
+	}
+	if sliceValue, ok := value.([]interface{}); ok {
+		return sliceValue, nil
+	}
+	return nil, fmt.Errorf("node %s is not a slice", path)
+}
+
+// Deprecated: use pipes instead.
+// GetString returns the contents of the string field at the given path.
+func (rn *RNode) GetString(path string) (string, error) {
+	value, err := rn.GetFieldValue(path)
+	if err != nil {
+		return "", err
+	}
+	if v, ok := value.(string); ok {
+		return v, nil
+	}
+	return "", fmt.Errorf("node %s is not a string: %v", path, value)
+}
+
+// Deprecated: use slash paths instead.
+// GetFieldValue finds period delimited fields.
+// TODO: When doing kustomize var replacement, which is likely a
+// a primary use of this function and the reason it returns interface{}
+// rather than string, we do conversion from Nodes to Go types and back
+// to nodes.  We should figure out how to do replacement using raw nodes,
+// assuming we keep the var feature in kustomize.
+// The other end of this is: refvar.go:updateNodeValue.
+func (rn *RNode) GetFieldValue(path string) (interface{}, error) {
+	fields := convertSliceIndex(strings.Split(path, "."))
+	rn, err := rn.Pipe(Lookup(fields...))
+	if err != nil {
+		return nil, err
+	}
+	if rn == nil {
+		return nil, NoFieldError{path}
+	}
+	yn := rn.YNode()
+
+	// If this is an alias node, resolve it
+	if yn.Kind == yaml.AliasNode {
+		yn = yn.Alias
+	}
+
+	// Return value as map for DocumentNode and MappingNode kinds
+	if yn.Kind == yaml.DocumentNode || yn.Kind == yaml.MappingNode {
+		var result map[string]interface{}
+		if err := yn.Decode(&result); err != nil {
+			return nil, err
+		}
+		return result, err
+	}
+
+	// Return value as slice for SequenceNode kind
+	if yn.Kind == yaml.SequenceNode {
+		var result []interface{}
+		if err := yn.Decode(&result); err != nil {
+			return nil, err
+		}
+		return result, nil
+	}
+	if yn.Kind != yaml.ScalarNode {
+		return nil, fmt.Errorf("expected ScalarNode, got Kind=%d", yn.Kind)
+	}
+
+	switch yn.Tag {
+	case NodeTagString:
+		return yn.Value, nil
+	case NodeTagInt:
+		return strconv.Atoi(yn.Value)
+	case NodeTagFloat:
+		return strconv.ParseFloat(yn.Value, 64)
+	case NodeTagBool:
+		return strconv.ParseBool(yn.Value)
+	default:
+		// Possibly this should be an error or log.
+		return yn.Value, nil
+	}
+}
+
+// convertSliceIndex traverses the items in `fields` and find
+// if there is a slice index in the item and change it to a
+// valid Lookup field path. For example, 'ports[0]' will be
+// converted to 'ports' and '0'.
+func convertSliceIndex(fields []string) []string {
+	var res []string
+	for _, s := range fields {
+		if !strings.HasSuffix(s, "]") {
+			res = append(res, s)
+			continue
+		}
+		re := regexp.MustCompile(`^(.*)\[(\d+)\]$`)
+		groups := re.FindStringSubmatch(s)
+		if len(groups) == 0 {
+			// no match, add to result
+			res = append(res, s)
+			continue
+		}
+		if groups[1] != "" {
+			res = append(res, groups[1])
+		}
+		res = append(res, groups[2])
+	}
+	return res
+}
+
+type NoFieldError struct {
+	Field string
+}
+
+func (e NoFieldError) Error() string {
+	return fmt.Sprintf("no field named '%s'", e.Field)
+}

kyaml/yaml/rnode_test.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v3"
 )
 
 func TestRNodeHasNilEntryInList(t *testing.T) {
@@ -1130,3 +1131,627 @@ func TestRNodeMatchesLabelSelector(t *testing.T) {
 		}
 	}
 }
+
+const (
+	deploymentLittleJson = `{"apiVersion":"apps/v1","kind":"Deployment",` +
+		`"metadata":{"name":"homer","namespace":"simpsons"}}`
+
+	deploymentBiggerJson = `
+{
+  "apiVersion": "apps/v1",
+  "kind": "Deployment",
+  "metadata": {
+    "name": "homer",
+    "namespace": "simpsons",
+    "labels": {
+      "fruit": "apple",
+      "veggie": "carrot"
+    },
+    "annotations": {
+      "area": "51",
+      "greeting": "Take me to your leader."
+    }
+  },
+  "spec": {
+    "template": {
+      "spec": {
+        "containers": [
+          {
+            "env": [
+              {
+                "name": "CM_FOO",
+                "valueFrom": {
+                  "configMapKeyRef": {
+                    "key": "somekey",
+                    "name": "myCm"
+                  }
+                }
+              },
+              {
+                "name": "SECRET_FOO",
+                "valueFrom": {
+                  "secretKeyRef": {
+                    "key": "someKey",
+                    "name": "mySecret"
+                  }
+                }
+              }
+            ],
+            "image": "nginx:1.7.9",
+            "name": "nginx"
+          }
+        ]
+      }
+    }
+  }
+}
+`
+	bigMapYaml = `Kind: Service
+complextree:
+  - field1:
+      - boolfield: true
+        floatsubfield: 1.01
+        intsubfield: 1010
+        stringsubfield: idx1010
+      - boolfield: false
+        floatsubfield: 1.011
+        intsubfield: 1011
+        stringsubfield: idx1011
+    field2:
+      - boolfield: true
+        floatsubfield: 1.02
+        intsubfield: 1020
+        stringsubfield: idx1020
+      - boolfield: false
+        floatsubfield: 1.021
+        intsubfield: 1021
+        stringsubfield: idx1021
+  - field1:
+      - boolfield: true
+        floatsubfield: 1.11
+        intsubfield: 1110
+        stringsubfield: idx1110
+      - boolfield: false
+        floatsubfield: 1.111
+        intsubfield: 1111
+        stringsubfield: idx1111
+    field2:
+      - boolfield: true
+        floatsubfield: 1.112
+        intsubfield: 1120
+        stringsubfield: idx1120
+      - boolfield: false
+        floatsubfield: 1.1121
+        intsubfield: 1121
+        stringsubfield: idx1121
+metadata:
+    labels:
+        app: application-name
+    name: service-name
+spec:
+    ports:
+        port: 80
+that:
+  - idx0
+  - idx1
+  - idx2
+  - idx3
+these:
+  - field1:
+      - idx010
+      - idx011
+    field2:
+      - idx020
+      - idx021
+  - field1:
+      - idx110
+      - idx111
+    field2:
+      - idx120
+      - idx121
+  - field1:
+      - idx210
+      - idx211
+    field2:
+      - idx220
+      - idx221
+this:
+    is:
+        aBool: true
+        aFloat: 1.001
+        aNilValue: null
+        aNumber: 1000
+        anEmptyMap: {}
+        anEmptySlice: []
+those:
+  - field1: idx0foo
+    field2: idx0bar
+  - field1: idx1foo
+    field2: idx1bar
+  - field1: idx2foo
+    field2: idx2bar
+`
+)
+
+func TestGetFieldValueReturnsMap(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	expected := map[string]interface{}{
+		"fruit":  "apple",
+		"veggie": "carrot",
+	}
+	actual, err := rn.GetFieldValue("metadata.labels")
+	if err != nil {
+		t.Fatalf("error getting field value: %v", err)
+	}
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual map does not deep equal expected map:\n%v", diff)
+	}
+}
+
+func TestGetFieldValueReturnsStuff(t *testing.T) {
+	wn := NewRNode(nil)
+	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	expected := []interface{}{
+		map[string]interface{}{
+			"env": []interface{}{
+				map[string]interface{}{
+					"name": "CM_FOO",
+					"valueFrom": map[string]interface{}{
+						"configMapKeyRef": map[string]interface{}{
+							"key":  "somekey",
+							"name": "myCm",
+						},
+					},
+				},
+				map[string]interface{}{
+					"name": "SECRET_FOO",
+					"valueFrom": map[string]interface{}{
+						"secretKeyRef": map[string]interface{}{
+							"key":  "someKey",
+							"name": "mySecret",
+						},
+					},
+				},
+			},
+			"image": string("nginx:1.7.9"),
+			"name":  string("nginx"),
+		},
+	}
+	actual, err := wn.GetFieldValue("spec.template.spec.containers")
+	if err != nil {
+		t.Fatalf("error getting field value: %v", err)
+	}
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual map does not deep equal expected map:\n%v", diff)
+	}
+	// Cannot go deeper yet.
+	_, err = wn.GetFieldValue("spec.template.spec.containers.env")
+	if err == nil {
+		t.Fatalf("expected err %v", err)
+	}
+}
+
+func makeBigMap() map[string]interface{} {
+	return map[string]interface{}{
+		"Kind": "Service",
+		"metadata": map[string]interface{}{
+			"labels": map[string]interface{}{
+				"app": "application-name",
+			},
+			"name": "service-name",
+		},
+		"spec": map[string]interface{}{
+			"ports": map[string]interface{}{
+				"port": int64(80),
+			},
+		},
+		"this": map[string]interface{}{
+			"is": map[string]interface{}{
+				"aNumber":      int64(1000),
+				"aFloat":       float64(1.001),
+				"aNilValue":    nil,
+				"aBool":        true,
+				"anEmptyMap":   map[string]interface{}{},
+				"anEmptySlice": []interface{}{},
+				/*
+					TODO: test for unrecognizable (e.g. a function)
+						"unrecognizable": testing.InternalExample{
+							Name: "fooBar",
+						},
+				*/
+			},
+		},
+		"that": []interface{}{
+			"idx0",
+			"idx1",
+			"idx2",
+			"idx3",
+		},
+		"those": []interface{}{
+			map[string]interface{}{
+				"field1": "idx0foo",
+				"field2": "idx0bar",
+			},
+			map[string]interface{}{
+				"field1": "idx1foo",
+				"field2": "idx1bar",
+			},
+			map[string]interface{}{
+				"field1": "idx2foo",
+				"field2": "idx2bar",
+			},
+		},
+		"these": []interface{}{
+			map[string]interface{}{
+				"field1": []interface{}{"idx010", "idx011"},
+				"field2": []interface{}{"idx020", "idx021"},
+			},
+			map[string]interface{}{
+				"field1": []interface{}{"idx110", "idx111"},
+				"field2": []interface{}{"idx120", "idx121"},
+			},
+			map[string]interface{}{
+				"field1": []interface{}{"idx210", "idx211"},
+				"field2": []interface{}{"idx220", "idx221"},
+			},
+		},
+		"complextree": []interface{}{
+			map[string]interface{}{
+				"field1": []interface{}{
+					map[string]interface{}{
+						"stringsubfield": "idx1010",
+						"intsubfield":    int64(1010),
+						"floatsubfield":  float64(1.010),
+						"boolfield":      true,
+					},
+					map[string]interface{}{
+						"stringsubfield": "idx1011",
+						"intsubfield":    int64(1011),
+						"floatsubfield":  float64(1.011),
+						"boolfield":      false,
+					},
+				},
+				"field2": []interface{}{
+					map[string]interface{}{
+						"stringsubfield": "idx1020",
+						"intsubfield":    int64(1020),
+						"floatsubfield":  float64(1.020),
+						"boolfield":      true,
+					},
+					map[string]interface{}{
+						"stringsubfield": "idx1021",
+						"intsubfield":    int64(1021),
+						"floatsubfield":  float64(1.021),
+						"boolfield":      false,
+					},
+				},
+			},
+			map[string]interface{}{
+				"field1": []interface{}{
+					map[string]interface{}{
+						"stringsubfield": "idx1110",
+						"intsubfield":    int64(1110),
+						"floatsubfield":  float64(1.110),
+						"boolfield":      true,
+					},
+					map[string]interface{}{
+						"stringsubfield": "idx1111",
+						"intsubfield":    int64(1111),
+						"floatsubfield":  float64(1.111),
+						"boolfield":      false,
+					},
+				},
+				"field2": []interface{}{
+					map[string]interface{}{
+						"stringsubfield": "idx1120",
+						"intsubfield":    int64(1120),
+						"floatsubfield":  float64(1.1120),
+						"boolfield":      true,
+					},
+					map[string]interface{}{
+						"stringsubfield": "idx1121",
+						"intsubfield":    int64(1121),
+						"floatsubfield":  float64(1.1121),
+						"boolfield":      false,
+					},
+				},
+			},
+		},
+	}
+}
+func TestBasicYamlOperationFromMap(t *testing.T) {
+	bytes, err := Marshal(makeBigMap())
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	if string(bytes) != bigMapYaml {
+		t.Fatalf("unexpected string equality")
+	}
+	rNode, err := Parse(string(bytes))
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	rNodeString := rNode.MustString()
+	// The result from MustString has more indentation
+	// than bigMapYaml.
+	rNodeStrings := strings.Split(rNodeString, "\n")
+	bigMapStrings := strings.Split(bigMapYaml, "\n")
+	if len(rNodeStrings) != len(bigMapStrings) {
+		t.Fatalf("line count mismatch")
+	}
+	for i := range rNodeStrings {
+		s1 := strings.TrimSpace(rNodeStrings[i])
+		s2 := strings.TrimSpace(bigMapStrings[i])
+		if s1 != s2 {
+			t.Fatalf("expected '%s'=='%s'", s1, s2)
+		}
+	}
+}
+
+func TestGetFieldValueReturnsSlice(t *testing.T) {
+	bytes, err := yaml.Marshal(makeBigMap())
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	rNode, err := Parse(string(bytes))
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	expected := []interface{}{"idx0", "idx1", "idx2", "idx3"}
+	actual, err := rNode.GetFieldValue("that")
+	if err != nil {
+		t.Fatalf("error getting slice: %v", err)
+	}
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
+	}
+}
+
+func TestGetFieldValueReturnsSliceOfMappings(t *testing.T) {
+	bytes, err := yaml.Marshal(makeBigMap())
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	rn, err := Parse(string(bytes))
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	expected := []interface{}{
+		map[string]interface{}{
+			"field1": "idx0foo",
+			"field2": "idx0bar",
+		},
+		map[string]interface{}{
+			"field1": "idx1foo",
+			"field2": "idx1bar",
+		},
+		map[string]interface{}{
+			"field1": "idx2foo",
+			"field2": "idx2bar",
+		},
+	}
+	actual, err := rn.GetFieldValue("those")
+	if err != nil {
+		t.Fatalf("error getting slice: %v", err)
+	}
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
+	}
+}
+
+func TestGetFieldValueReturnsString(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	actual, err := rn.GetFieldValue("metadata.labels.fruit")
+	if err != nil {
+		t.Fatalf("error getting field value: %v", err)
+	}
+	v, ok := actual.(string)
+	if !ok || v != "apple" {
+		t.Fatalf("unexpected value '%v'", actual)
+	}
+}
+
+func TestGetFieldValueResolvesAlias(t *testing.T) {
+	yamlWithAlias := `
+foo: &a theValue
+bar: *a
+`
+	rn, err := Parse(yamlWithAlias)
+	if err != nil {
+		t.Fatalf("unexpected yaml parse error: %v", err)
+	}
+	actual, err := rn.GetFieldValue("bar")
+	if err != nil {
+		t.Fatalf("error getting field value: %v", err)
+	}
+	v, ok := actual.(string)
+	if !ok || v != "theValue" {
+		t.Fatalf("unexpected value '%v'", actual)
+	}
+}
+
+func TestGetString(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	expected := "carrot"
+	actual, err := rn.GetString("metadata.labels.veggie")
+	if err != nil {
+		t.Fatalf("error getting string: %v", err)
+	}
+	if expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+}
+
+func TestGetSlice(t *testing.T) {
+	bytes, err := yaml.Marshal(makeBigMap())
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	rn, err := Parse(string(bytes))
+	if err != nil {
+		t.Fatalf("unexpected yaml.Marshal err: %v", err)
+	}
+	expected := []interface{}{"idx0", "idx1", "idx2", "idx3"}
+	actual, err := rn.GetSlice("that")
+	if err != nil {
+		t.Fatalf("error getting slice: %v", err)
+	}
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
+	}
+}
+
+func TestRoundTripJSON(t *testing.T) {
+	rn := NewRNode(nil)
+	err := rn.UnmarshalJSON([]byte(deploymentLittleJson))
+	if err != nil {
+		t.Fatalf("unexpected UnmarshalJSON err: %v", err)
+	}
+	data, err := rn.MarshalJSON()
+	if err != nil {
+		t.Fatalf("unexpected MarshalJSON err: %v", err)
+	}
+	actual := string(data)
+	if actual != deploymentLittleJson {
+		t.Fatalf("expected %s, got %s", deploymentLittleJson, actual)
+	}
+}
+
+func TestGettingFields(t *testing.T) {
+	rn := NewRNode(nil)
+	err := rn.UnmarshalJSON([]byte(deploymentBiggerJson))
+	if err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	expected := "Deployment"
+	actual := rn.GetKind()
+	if expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+	expected = "homer"
+	actual = rn.GetName()
+	if expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+	actualMap, err := rn.GetLabels()
+	if err != nil {
+		t.Fatalf("unexpected err '%v'", err)
+	}
+	v, ok := actualMap["fruit"]
+	if !ok || v != "apple" {
+		t.Fatalf("unexpected labels '%v'", actualMap)
+	}
+	actualMap, err = rn.GetAnnotations()
+	if err != nil {
+		t.Fatalf("unexpected err '%v'", err)
+	}
+	v, ok = actualMap["greeting"]
+	if !ok || v != "Take me to your leader." {
+		t.Fatalf("unexpected annotations '%v'", actualMap)
+	}
+}
+
+func TestMapEmpty(t *testing.T) {
+	newNodeMap, err := NewRNode(nil).Map()
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(newNodeMap))
+}
+
+func TestMap(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentLittleJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+
+	expected := map[string]interface{}{
+		"apiVersion": "apps/v1",
+		"kind":       "Deployment",
+		"metadata": map[string]interface{}{
+			"name":      "homer",
+			"namespace": "simpsons",
+		},
+	}
+
+	actual, err := rn.Map()
+	assert.NoError(t, err)
+	if diff := cmp.Diff(expected, actual); diff != "" {
+		t.Fatalf("actual map does not deep equal expected map:\n%v", diff)
+	}
+}
+
+func TestSetName(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	rn.SetName("marge")
+	if expected, actual := "marge", rn.GetName(); expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+}
+
+func TestSetNamespace(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	rn.SetNamespace("flanders")
+	meta, _ := rn.GetMeta()
+	if expected, actual := "flanders", meta.Namespace; expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+}
+func TestSetLabels(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	rn.SetLabels(map[string]string{
+		"label1": "foo",
+		"label2": "bar",
+	})
+	labels, err := rn.GetLabels()
+	assert.NoError(t, err)
+	if expected, actual := 2, len(labels); expected != actual {
+		t.Fatalf("expected '%d', got '%d'", expected, actual)
+	}
+	if expected, actual := "foo", labels["label1"]; expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+	if expected, actual := "bar", labels["label2"]; expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+}
+
+func TestGetAnnotations(t *testing.T) {
+	rn := NewRNode(nil)
+	if err := rn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
+		t.Fatalf("unexpected unmarshaljson err: %v", err)
+	}
+	rn.SetAnnotations(map[string]string{
+		"annotation1": "foo",
+		"annotation2": "bar",
+	})
+	annotations, err := rn.GetAnnotations()
+	assert.NoError(t, err)
+	if expected, actual := 2, len(annotations); expected != actual {
+		t.Fatalf("expected '%d', got '%d'", expected, actual)
+	}
+	if expected, actual := "foo", annotations["annotation1"]; expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+	if expected, actual := "bar", annotations["annotation2"]; expected != actual {
+		t.Fatalf("expected '%s', got '%s'", expected, actual)
+	}
+}