Removes semantic validation from addmetadata.go and tests.

Due to moving some input parsing to the Validate method, it was renamed to reflect this additional purpose.
Tests were removed where appropriate.

pkg/commands/addmetadata.go

@@ -18,11 +18,11 @@ package commands
 
 import (
 	"fmt"
-	"regexp"
 	"strings"
 
 	"github.com/kubernetes-sigs/kustomize/pkg/constants"
 	"github.com/kubernetes-sigs/kustomize/pkg/fs"
+	"github.com/kubernetes-sigs/kustomize/pkg/validate"
 	"github.com/spf13/cobra"
 )
 
@@ -59,7 +59,7 @@ func newCmdAddAnnotation(fsys fs.FileSystem) *cobra.Command {
 		Example: `
 		add annotation {annotationKey1:annotationValue1},{annotationKey2:annotationValue2}`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			err := o.Validate(args, annotation)
+			err := o.ValidateAndParse(args, annotation)
 			if err != nil {
 				return err
 			}
@@ -79,7 +79,7 @@ func newCmdAddLabel(fsys fs.FileSystem) *cobra.Command {
 		Example: `
 		add label {labelKey1:labelValue1},{labelKey2:labelValue2}`,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			err := o.Validate(args, label)
+			err := o.ValidateAndParse(args, label)
 			if err != nil {
 				return err
 			}
@@ -89,8 +89,8 @@ func newCmdAddLabel(fsys fs.FileSystem) *cobra.Command {
 	return cmd
 }
 
-// Validate validates addLabel and addAnnotation commands.
-func (o *addMetadataOptions) Validate(args []string, k KindOfAdd) error {
+// ValidateAndParse validates addLabel and addAnnotation commands and parses them into o.metadata
+func (o *addMetadataOptions) ValidateAndParse(args []string, k KindOfAdd) error {
 	o.metadata = make(map[string]string)
 	if len(args) < 1 {
 		return fmt.Errorf("must specify %s", k)
@@ -100,18 +100,22 @@ func (o *addMetadataOptions) Validate(args []string, k KindOfAdd) error {
 	}
 	inputs := strings.Split(args[0], ",")
 	for _, input := range inputs {
-		ok, err := regexp.MatchString(`\A([a-zA-Z0-9_.-]+):([a-zA-Z0-9_.-]+)\z`, input)
-		if err != nil {
+		switch k {
+		case label:
+			valid, err := validate.IsValidLabel(input)
+			if !valid {
 				return err
 			}
-		if !ok {
-			return fmt.Errorf("invalid %s format: %s", k, input)
+		case annotation:
+			valid, err := validate.IsValidAnnotation(input)
+			if !valid {
+				return err
 			}
+		default:
+			return fmt.Errorf("unknown metadata kind %s", k)
 		}
 		//parse annotation keys and values into metadata
-	entries := strings.Split(args[0], ",")
-	for _, entry := range entries {
-		kv := strings.Split(entry, ":")
+		kv := strings.Split(input, ":")
 		o.metadata[kv[0]] = kv[1]
 	}
 	return nil

pkg/commands/addmetadata_test.go

@@ -17,7 +17,6 @@ limitations under the License.
 package commands
 
 import (
-	"fmt"
 	"reflect"
 	"testing"
 
@@ -25,12 +24,13 @@ import (
 	"github.com/kubernetes-sigs/kustomize/pkg/fs"
 )
 
-func TestInputValid(t *testing.T) {
+func TestParseValidateInput(t *testing.T) {
 	var testcases = []struct {
 		input        string
 		valid        bool
 		name         string
 		expectedData map[string]string
+		kind         KindOfAdd
 	}{
 		{
 			input: "otters:cute",
@@ -39,6 +39,7 @@ func TestInputValid(t *testing.T) {
 			expectedData: map[string]string{
 				"otters": "cute",
 			},
+			kind: label,
 		},
 		{
 			input: "owls:great,unicorns:magical",
@@ -48,26 +49,7 @@ func TestInputValid(t *testing.T) {
 				"owls":     "great",
 				"unicorns": "magical",
 			},
-		},
-		{
-			input: "dogs,cats",
-			valid: false,
-			name:  "Does not contain colon",
-		},
-		{
-			input: ":noKey",
-			valid: false,
-			name:  "Missing key",
-		},
-		{
-			input: "noValue:",
-			valid: false,
-			name:  "Missing value",
-		},
-		{
-			input: "exclamation!:point",
-			valid: false,
-			name:  "Non-alphanumeric input",
+			kind: label,
 		},
 		{
 			input: "123:45",
@@ -76,30 +58,26 @@ func TestInputValid(t *testing.T) {
 			expectedData: map[string]string{
 				"123": "45",
 			},
+			kind: annotation,
+		},
+		{
+			input:        " ",
+			valid:        false,
+			name:         "Empty space input",
+			expectedData: nil,
+			kind:         annotation,
 		},
 	}
 	var o addMetadataOptions
 	for _, tc := range testcases {
-
 		args := []string{tc.input}
-		err := o.Validate(args, label) //use label since in Validate kindofAdd is only used for error messages
-
+		err := o.ValidateAndParse(args, tc.kind)
 		if err != nil && tc.valid {
 			t.Errorf("for test case %s, unexpected cmd error: %v", tc.name, err)
 		}
 		if err == nil && !tc.valid {
 			t.Errorf("unexpected error: expected invalid format error for test case %v", tc.name)
 		}
-		if err == nil && (tc.name == "Metadata keys must be unique") {
-			t.Errorf("unexpected error: for test case %s, expected already there problem", tc.name)
-		}
-		if err != nil && (tc.name == "Multiple args") {
-			fmt.Println(err.Error())
-			if err.Error() != "must specify label" {
-				t.Errorf("unexpected error: for test case %s, expected must specify label error", tc.name)
-			}
-		}
-
 		//o.metadata should be the same as expectedData
 		if tc.valid {
 			if !reflect.DeepEqual(o.metadata, tc.expectedData) {