More tests, better errors.

kustomize/internal/commands/build/build.go

@@ -80,8 +80,6 @@ func NewCmdBuild(out io.Writer) *cobra.Command {
 	return cmd
 }
 
-const CWD = "."
-
 // Validate validates build command.
 func (o *Options) Validate(args []string) (err error) {
 	if len(args) > 1 {
@@ -90,7 +88,7 @@ func (o *Options) Validate(args []string) (err error) {
 				konfig.DefaultKustomizationFileName())
 	}
 	if len(args) == 0 {
-		o.kustomizationPath = CWD
+		o.kustomizationPath = filesys.SelfDir
 	} else {
 		o.kustomizationPath = args[0]
 	}

kustomize/internal/commands/build/build_test.go

@@ -6,6 +6,7 @@ package build
 import (
 	"testing"
 
+	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/konfig"
 )
 
@@ -22,7 +23,7 @@ func TestBuildValidate(t *testing.T) {
 		path  string
 		erMsg string
 	}{
-		{"noargs", []string{}, ".", ""},
+		{"noargs", []string{}, filesys.SelfDir, ""},
 		{"file", []string{"beans"}, "beans", ""},
 		{"path", []string{"a/b/c"}, "a/b/c", ""},
 		{"path", []string{"too", "many"},

kustomize/internal/commands/create/create.go

@@ -31,7 +31,7 @@ type createFlags struct {
 
 // NewCmdCreate returns an instance of 'create' subcommand.
 func NewCmdCreate(fSys filesys.FileSystem, uf ifc.KunstructuredFactory) *cobra.Command {
-	opts := createFlags{path: "."}
+	opts := createFlags{path: filesys.SelfDir}
 	c := &cobra.Command{
 		Use:   "create",
 		Short: "Create a new kustomization in the current directory",