Add some resId tests to support refactor.

pkg/gvk/gvk.go

@@ -35,6 +35,7 @@ func FromKind(k string) Gvk {
 	}
 }
 
+// Values that are brief but meaningful in logs.
 const (
 	noGroup   = "~G"
 	noVersion = "~V"
@@ -113,11 +114,19 @@ func (x Gvk) IsLessThan(o Gvk) bool {
 
 // IsSelected returns true if `selector` selects `x`; otherwise, false.
 // If `selector` and `x` are the same, return true.
-// If `selector` is nil, it is considered as a wildcard and always return true.
-// e.g. selector <Group: "", Version: "", Kind: "Deployment"> CAN select
-// <Group: "extensions", Version: "v1beta1", Kind: "Deployment">.
-// selector <Group: "apps", Version: "", Kind: "Deployment"> CANNOT select
-// <Group: "extensions", Version: "v1beta1", Kind: "Deployment">.
+// If `selector` is nil, it is considered a wildcard match, returning true.
+// If selector fields are empty, they are considered wildcards matching
+// anything in the corresponding fields, .g.
+//   selector
+//       <Group: "",           Version: "",        Kind: "Deployment">
+//   selects
+//       <Group: "extensions", Version: "v1beta1", Kind: "Deployment">.
+//
+//   while selector
+//       <Group: "apps",       Version: "",        Kind: "Deployment">
+//   rejects
+//       <Group: "extensions", Version: "v1beta1", Kind: "Deployment">.
+//
 func (x Gvk) IsSelected(selector *Gvk) bool {
 	if selector == nil {
 		return true

pkg/resid/resid.go

@@ -17,7 +17,6 @@ limitations under the License.
 package resid
 
 import (
-	"fmt"
 	"strings"
 
 	"sigs.k8s.io/kustomize/pkg/gvk"
@@ -125,44 +124,29 @@ func (n ResId) Name() string {
 	return n.name
 }
 
-// NameWithPrefixSuffix returns resource name with prefix and suffix.
-func (n ResId) NameWithPrefixSuffix() string {
-	prefix := strings.Join(n.prefixList(), "")
-	suffix := strings.Join(n.suffixList(), "")
-	return fmt.Sprintf("%s%s%s", prefix, n.name, suffix)
-}
-
-// Prefix returns name prefix.
-func (n ResId) Prefix() string {
-	return n.prefix
-}
-
-// Suffix returns name suffix.
-func (n ResId) Suffix() string {
-	return n.suffix
-}
-
 // Namespace returns resource namespace.
 func (n ResId) Namespace() string {
 	return n.namespace
 }
 
-// CopyWithNewPrefixSuffix make a new copy from current ResId and append a new prefix and suffix
+// CopyWithNewPrefixSuffix make a new copy from current ResId
+// and append a new prefix and suffix
 func (n ResId) CopyWithNewPrefixSuffix(p, s string) ResId {
-	prefix := n.prefix
+	result := n
 	if p != "" {
-		prefix = n.concatPrefix(p)
+		result.prefix = n.concatPrefix(p)
 	}
-	suffix := n.suffix
 	if s != "" {
-		suffix = n.concatSuffix(s)
+		result.suffix = n.concatSuffix(s)
 	}
-	return ResId{gvKind: n.gvKind, name: n.name, prefix: prefix, suffix: suffix, namespace: n.namespace}
+	return result
 }
 
 // CopyWithNewNamespace make a new copy from current ResId and set a new namespace
 func (n ResId) CopyWithNewNamespace(ns string) ResId {
-	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.prefix, suffix: n.suffix, namespace: ns}
+	result := n
+	result.namespace = ns
+	return result
 }
 
 // HasSameLeftmostPrefix check if two ResIds have the same

pkg/resid/resid_test.go

@@ -111,3 +111,41 @@ func TestEquals(t *testing.T) {
 		}
 	}
 }
+
+func TestCopyWithNewPrefixSuffix(t *testing.T) {
+	r1 := ResId{
+		gvKind:    gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+		name:      "nm",
+		prefix:    "a",
+		suffix:    "b",
+		namespace: "X"}
+	r2 := r1.CopyWithNewPrefixSuffix("p-", "-s")
+	expected := ResId{
+		gvKind:    gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+		name:      "nm",
+		prefix:    "p-a",
+		suffix:    "b-s",
+		namespace: "X"}
+	if !r2.GvknEquals(expected) {
+		t.Fatalf("%v should equal %v", r2, expected)
+	}
+}
+
+func TestCopyWithNewNamespace(t *testing.T) {
+	r1 := ResId{
+		gvKind:    gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+		name:      "nm",
+		prefix:    "a",
+		suffix:    "b",
+		namespace: "X"}
+	r2 := r1.CopyWithNewNamespace("zzz")
+	expected := ResId{
+		gvKind:    gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+		name:      "nm",
+		prefix:    "a",
+		suffix:    "b",
+		namespace: "zzz"}
+	if !r2.GvknEquals(expected) {
+		t.Fatalf("%v should equal %v", r2, expected)
+	}
+}

pkg/resmap/resmap.go

@@ -131,7 +131,9 @@ func (m ResMap) FilterBy(inputId resid.ResId) ResMap {
 	}
 	result := ResMap{}
 	for id, res := range m {
-		if id.Namespace() == inputId.Namespace() && id.HasSameLeftmostPrefix(inputId) && id.HasSameRightmostSuffix(inputId) {
+		if id.Namespace() == inputId.Namespace() &&
+			id.HasSameLeftmostPrefix(inputId) &&
+			id.HasSameRightmostSuffix(inputId) {
 			result[id] = res
 		}
 	}

pkg/target/kusttarget_test.go

@@ -260,17 +260,41 @@ func TestSecretTimeout(t *testing.T) {
 	}
 }
 
+func findSecret(m resmap.ResMap) *resource.Resource {
+	for id, res := range m {
+		if id.Gvk().Kind == "Secret" {
+			return res
+		}
+	}
+	return nil
+}
+
 func TestDisableNameSuffixHash(t *testing.T) {
 	kt := makeKustTarget(t, makeLoader1(t))
-	kt.kustomization.GeneratorOptions = &types.GeneratorOptions{DisableNameSuffixHash: true}
-	actual, err := kt.MakeCustomizedResMap()
+
+	m, err := kt.MakeCustomizedResMap()
 	if err != nil {
 		t.Fatalf("unexpected Resources error %v", err)
 	}
+	secret := findSecret(m)
+	if secret == nil {
+		t.Errorf("Expected to find a Secret")
+	}
+	if secret.GetName() != "foo-secret-bar-9btc7bt4kb" {
+		t.Errorf("unexpected secret resource name: %s", secret.GetName())
+	}
 
-	for id, r := range actual {
-		if r.GetName() != id.NameWithPrefixSuffix() {
-			t.Errorf("unexpected hash was added to %s: %s", id.NameWithPrefixSuffix(), r.GetName())
-		}
+	kt.kustomization.GeneratorOptions = &types.GeneratorOptions{
+		DisableNameSuffixHash: true}
+	m, err = kt.MakeCustomizedResMap()
+	if err != nil {
+		t.Fatalf("unexpected Resources error %v", err)
+	}
+	secret = findSecret(m)
+	if secret == nil {
+		t.Errorf("Expected to find a Secret")
+	}
+	if secret.GetName() != "foo-secret-bar" { // No hash at end.
+		t.Errorf("unexpected secret resource name: %s", secret.GetName())
 	}
 }

pkg/transformers/prefixsuffixname.go

@@ -43,20 +43,26 @@ var prefixSuffixFieldSpecsToSkip = []config.FieldSpec{
 	},
 }
 
-// deprecateNamePrefixSuffixFieldSpec will be moved into prefixSuffixFieldSpecsToSkip in next release
+// deprecateNamePrefixSuffixFieldSpec will be moved into
+// prefixSuffixFieldSpecsToSkip in next release
 var deprecateNamePrefixSuffixFieldSpec = config.FieldSpec{
 	Gvk: gvk.Gvk{Kind: "Namespace"},
 }
 
-// NewNamePrefixSuffixTransformer construct a namePrefixSuffixTransformer.
-func NewNamePrefixSuffixTransformer(np, ns string, pc []config.FieldSpec) (Transformer, error) {
+// NewNamePrefixSuffixTransformer makes a namePrefixSuffixTransformer.
+func NewNamePrefixSuffixTransformer(
+	np, ns string, fieldSpecs []config.FieldSpec) (Transformer, error) {
 	if len(np) == 0 && len(ns) == 0 {
 		return NewNoOpTransformer(), nil
 	}
-	if pc == nil {
+	if fieldSpecs == nil {
 		return nil, errors.New("fieldSpecs is not expected to be nil")
 	}
-	return &namePrefixSuffixTransformer{fieldSpecsToUse: pc, prefix: np, suffix: ns, fieldSpecsToSkip: prefixSuffixFieldSpecsToSkip}, nil
+	return &namePrefixSuffixTransformer{
+		prefix:           np,
+		suffix:           ns,
+		fieldSpecsToUse:  fieldSpecs,
+		fieldSpecsToSkip: prefixSuffixFieldSpecsToSkip}, nil
 }
 
 // Transform prepends the name prefix and appends the name suffix.
@@ -81,14 +87,20 @@ func (o *namePrefixSuffixTransformer) Transform(m resmap.ResMap) error {
 
 	for id := range mf {
 		if id.Gvk().IsSelected(&deprecateNamePrefixSuffixFieldSpec.Gvk) {
-			log.Println("Adding nameprefix and namesuffix to Namespace resource will be deprecated in next release.")
+			log.Println(
+				"Adding prefix and suffix to Namespace " +
+					"resource will be deprecated in next release.")
 		}
 		objMap := mf[id].Map()
 		for _, path := range o.fieldSpecsToUse {
 			if !id.Gvk().IsSelected(&path.Gvk) {
 				continue
 			}
-			err := mutateField(objMap, path.PathSlice(), path.CreateIfNotPresent, o.addPrefixSuffix)
+			err := mutateField(
+				objMap,
+				path.PathSlice(),
+				path.CreateIfNotPresent,
+				o.addPrefixSuffix)
 			if err != nil {
 				return err
 			}
@@ -99,7 +111,8 @@ func (o *namePrefixSuffixTransformer) Transform(m resmap.ResMap) error {
 	return nil
 }
 
-func (o *namePrefixSuffixTransformer) addPrefixSuffix(in interface{}) (interface{}, error) {
+func (o *namePrefixSuffixTransformer) addPrefixSuffix(
+	in interface{}) (interface{}, error) {
 	s, ok := in.(string)
 	if !ok {
 		return nil, fmt.Errorf("%#v is expected to be %T", in, s)