Improve command package isolation.

pkg/commands/misc/config_test.go

@@ -0,0 +1,87 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package misc
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"testing"
+
+	"sigs.k8s.io/kustomize/pkg/fs"
+)
+
+func TestValidate(t *testing.T) {
+	o := saveOptions{
+		saveDirectory: "",
+	}
+	err := o.Validate()
+	if !strings.Contains(err.Error(), "must specify one local directory") {
+		t.Fatalf("Incorrect error %v", err)
+	}
+
+	o.saveDirectory = "/some/dir"
+	err = o.Validate()
+	if err != nil {
+		t.Fatalf("Unexpected error %v", err)
+	}
+}
+
+func TestComplete(t *testing.T) {
+	fsys := fs.MakeFakeFS()
+	fsys.Mkdir("/some/dir")
+	fsys.WriteFile("/some/file", []byte(`some file`))
+
+	type testcase struct {
+		dir    string
+		expect error
+	}
+	testcases := []testcase{
+		{
+			dir:    "/some/dir",
+			expect: nil,
+		},
+		{
+			dir:    "/some/dir/not/existing",
+			expect: nil,
+		},
+		{
+			dir:    "/some/file",
+			expect: fmt.Errorf("%s is not a directory. Please use a different directory name.", "/some/file"),
+		},
+	}
+
+	for _, tcase := range testcases {
+		o := saveOptions{saveDirectory: tcase.dir}
+		actual := o.Complete(fsys)
+		if !reflect.DeepEqual(actual, tcase.expect) {
+			t.Fatalf("Expected %v\n but bot %v\n", tcase.expect, actual)
+		}
+	}
+}
+
+func TestRunSave(t *testing.T) {
+	fsys := fs.MakeFakeFS()
+	o := saveOptions{saveDirectory: "/some/dir"}
+	err := o.RunSave(fsys)
+	if err != nil {
+		t.Fatalf("Unexpected error %v", err)
+	}
+	if !fsys.Exists("/some/dir/nameprefix.yaml") {
+		t.Fatal("default configurations are not successfully save.")
+	}
+}