repo_description: Build Container Images In Kubernetes
repo_topics: containers developer-tools docker kubernetes
code: /*
  Copyright 2018 Google LLC
  
  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 commands
  
  import (
  	"os"
  	"testing"
  
  	"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
  
  	"github.com/GoogleContainerTools/kaniko/testutil"
  	v1 "github.com/google/go-containerregistry/pkg/v1"
  	"github.com/moby/buildkit/frontend/dockerfile/instructions"
  )
  
  // Each test here changes the same WorkingDir field in the config
  // So, some of the tests build off of each other
  // This is needed to make sure WorkingDir handles paths correctly
  // For example, if WORKDIR specifies a non-absolute path, it should be appended to the current WORKDIR
  var workdirTests = []struct {
  	path          string
  	expectedPath  string
  	snapshotFiles []string
  }{
  	{
  		path:          "a",
  		expectedPath:  "/a",
  		snapshotFiles: []string{"/a"},
  	},
  	{
  		path:          "/a",
  		expectedPath:  "/a",
  		snapshotFiles: []string{"/a"},
  	},
  	{
  		path:          "b",
  		expectedPath:  "/a/b",
  		snapshotFiles: []string{"/a/b"},
  	},
  	{
  		path:          "c",
  		expectedPath:  "/a/b/c",
  		snapshotFiles: []string{"/a/b/c"},
  	},
  	{
  		path:          "/d",
  		expectedPath:  "/d",
  		snapshotFiles: []string{"/d"},
  	},
  	{
  		path:          "$path",
  		expectedPath:  "/d/usr",
  		snapshotFiles: []string{"/d/usr"},
  	},
  	{
  		path:          "$home",
  		expectedPath:  "/root",
  		snapshotFiles: []string{},
  	},
  	{
  		path:          "/foo/$path/$home",
  		expectedPath:  "/foo/usr/root",
  		snapshotFiles: []string{"/foo/usr/root"},
  	},
  	{
  		path:          "/tmp",
  		expectedPath:  "/tmp",
  		snapshotFiles: []string{},
  	},
  }
  
  // For testing
  func mockDir(path string, mode os.FileMode, uid, gid int64) error {
  	return nil
  }
  func TestWorkdirCommand(t *testing.T) {
  
  	// Mock out mkdir for testing.
  	oldMkdir := mkdirAllWithPermissions
  	mkdirAllWithPermissions = mockDir
  
  	defer func() {
  		mkdirAllWithPermissions = oldMkdir
  	}()
  
  	cfg := &v1.Config{
  		WorkingDir: "",
  		Env: []string{
  			"path=usr/",
  			"home=/root",
  		},
  	}
  
  	for _, test := range workdirTests {
  		cmd := WorkdirCommand{
  			cmd: &instructions.WorkdirCommand{
  				Path: test.path,
  			},
  			snapshotFiles: nil,
  		}
  		buildArgs := dockerfile.NewBuildArgs([]string{})
  		cmd.ExecuteCommand(cfg, buildArgs)
  		testutil.CheckErrorAndDeepEqual(t, false, nil, test.expectedPath, cfg.WorkingDir)
  		testutil.CheckErrorAndDeepEqual(t, false, nil, test.snapshotFiles, cmd.snapshotFiles)
  	}
  }
  