Support initializing a directory with a Krmfile

cmd/config/internal/commands/init_test.go

@@ -0,0 +1,84 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package commands_test
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
+)
+
+func TestInit_args(t *testing.T) {
+	d, err := ioutil.TempDir("", "kustomize-cat-test")
+	if !assert.NoError(t, err) {
+		return
+	}
+	defer os.RemoveAll(d)
+
+	// fmt the files
+	b := &bytes.Buffer{}
+	r := commands.GetInitRunner("")
+	r.Command.SetArgs([]string{d})
+	r.Command.SetOut(b)
+	if !assert.NoError(t, r.Command.Execute()) {
+		t.FailNow()
+	}
+
+	actual, err := ioutil.ReadFile(filepath.Join(d, "Krmfile"))
+	if !assert.NoError(t, err) {
+		t.FailNow()
+	}
+
+	if !assert.Equal(t, strings.TrimSpace(`
+apiVersion: config.k8s.io/v1alpha1
+kind: Krmfile
+`), strings.TrimSpace(string(actual))) {
+		t.FailNow()
+	}
+
+	if !assert.Equal(t, "", b.String()) {
+		t.FailNow()
+	}
+}
+
+func TestInit_noargs(t *testing.T) {
+	d, err := ioutil.TempDir("", "kustomize-test-")
+	if !assert.NoError(t, err) {
+		return
+	}
+	defer os.RemoveAll(d)
+
+	if !assert.NoError(t, os.Chdir(d)) {
+		t.FailNow()
+	}
+
+	b := &bytes.Buffer{}
+	r := commands.GetInitRunner("")
+	r.Command.SetOut(b)
+	if !assert.NoError(t, r.Command.Execute()) {
+		t.FailNow()
+	}
+
+	actual, err := ioutil.ReadFile(filepath.Join(d, "Krmfile"))
+	if !assert.NoError(t, err) {
+		t.FailNow()
+	}
+
+	if !assert.Equal(t, strings.TrimSpace(`
+apiVersion: config.k8s.io/v1alpha1
+kind: Krmfile
+`), strings.TrimSpace(string(actual))) {
+		t.FailNow()
+	}
+
+	if !assert.Equal(t, "", b.String()) {
+		t.FailNow()
+	}
+}