Adding integration test for creating three level directory (#1177)

* adding three level directory tests

* adding file in third dir

* updating filepath

* fixing comment

tools/integration_tests/operations/create_three_level_dir_test.go

@@ -0,0 +1,148 @@
+// Copyright 2023 Google Inc. All Rights Reserved.
+//
+// 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.
+
+// Provides integration tests for create three level directories.
+package operations_test
+
+import (
+	"fmt"
+	"io/fs"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"testing"
+
+	"github.com/googlecloudplatform/gcsfuse/tools/integration_tests/util/operations"
+	"github.com/googlecloudplatform/gcsfuse/tools/integration_tests/util/setup"
+)
+
+func TestCreateThreeLevelDirectories(t *testing.T) {
+	// Directory structure
+	// testBucket/dirOneInCreateThreeLevelDirTest                                                                       -- Dir
+	// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest                                       -- Dir
+	// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest/dirThreeInCreateThreeLevelDirTest     -- Dir
+	// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest/dirThreeInCreateThreeLevelDirTest/fileInDirThreeInCreateThreeLevelDirTest     -- File
+	os.RemoveAll(setup.MntDir())
+
+	dirPath := path.Join(setup.MntDir(), DirOneInCreateThreeLevelDirTest)
+
+	operations.CreateDirectoryWithNFiles(0, dirPath, "", t)
+
+	subDirPath := path.Join(dirPath, DirTwoInCreateThreeLevelDirTest)
+
+	operations.CreateDirectoryWithNFiles(0, subDirPath, "", t)
+
+	subDirPath2 := path.Join(subDirPath, DirThreeInCreateThreeLevelDirTest)
+
+	operations.CreateDirectoryWithNFiles(1, subDirPath2, PrefixFileInDirThreeInCreateThreeLevelDirTest, t)
+	filePath := path.Join(subDirPath2, FileInDirThreeInCreateThreeLevelDirTest)
+	err := operations.WriteFileInAppendMode(filePath, ContentInFileInDirThreeInCreateThreeLevelDirTest)
+	if err != nil {
+		t.Errorf("Write file error: %v", err)
+	}
+
+	// Recursively walk into directory and test.
+	err = filepath.WalkDir(setup.MntDir(), func(dirPath string, dir fs.DirEntry, err error) error {
+		if err != nil {
+			fmt.Printf("prevent panic by handling failure accessing a path %q: %v\n", dirPath, err)
+			return err
+		}
+
+		// The object type is not directory.
+		if !dir.IsDir() {
+			return nil
+		}
+
+		objs, err := os.ReadDir(dirPath)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		// Check if mntDir has correct objects.
+		if dirPath == setup.MntDir() {
+			// numberOfObjects - 1
+			if len(objs) != NumberOfObjectsInBucketDirectoryCreateTest {
+				t.Errorf("Incorrect number of objects in the bucket.")
+			}
+
+			// testBucket/dirOneInCreateThreeLevelDirTest   -- Dir
+			if objs[0].Name() != DirOneInCreateThreeLevelDirTest || objs[0].IsDir() != true {
+				t.Errorf("Directory is not created.")
+			}
+		}
+
+		// Check if dirOneInCreateThreeLevelDirTest directory has correct data.
+		if dir.IsDir() && dir.Name() == DirOneInCreateThreeLevelDirTest {
+			// numberOfObjects - 1
+			if len(objs) != NumberOfObjectsInDirOneInCreateThreeLevelDirTest {
+				t.Errorf("Incorrect number of objects in the dirOneInCreateThreeLevelDirTest.")
+			}
+
+			// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest    -- Dir
+			if objs[0].Name() != DirTwoInCreateThreeLevelDirTest || objs[0].IsDir() != true {
+				t.Errorf("Directory is not created.")
+			}
+			return nil
+		}
+
+		// Check if dirTwoInCreateThreeLevelDirTest directory has correct data.
+		if dir.IsDir() && dir.Name() == DirTwoInCreateThreeLevelDirTest {
+			// numberOfObjects - 1
+			if len(objs) != NumberOfObjectsInDirTwoInCreateThreeLevelDirTest {
+				t.Errorf("Incorrect number of objects in the dirTwoInCreateThreeLevelDirTest.")
+			}
+
+			// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest/dirThreeInCreateThreeLevelDirTest    -- Dir
+			if objs[0].Name() != DirThreeInCreateThreeLevelDirTest || objs[0].IsDir() != true {
+				t.Errorf("Directory is not created.")
+			}
+			return nil
+		}
+
+		// Check if dirThreeInCreateThreeLevelDirTest directory has correct data.
+		if dir.IsDir() && dir.Name() == DirThreeInCreateThreeLevelDirTest {
+			// numberOfObjects - 1
+			if len(objs) != NumberOfObjectsInDirThreeInCreateThreeLevelDirTest {
+				t.Errorf("Incorrect number of objects in the dirThreeInCreateThreeLevelDirTest.")
+			}
+
+			// testBucket/dirOneInCreateThreeLevelDirTest/dirTwoInCreateThreeLevelDirTest/dirThreeInCreateThreeLevelDirTest/fileInDirThreeInCreateThreeLevelDirTest     -- File
+			if objs[0].Name() != FileInDirThreeInCreateThreeLevelDirTest || objs[0].IsDir() != false {
+				t.Errorf("Incorrect object exist in the dirThreeInCreateThreeLevelDirTest directory.")
+			}
+
+			// Check if the content of the file is correct.
+			filePath := path.Join(dirPath, objs[0].Name())
+			content, err := operations.ReadFile(filePath)
+			if err != nil {
+				t.Errorf("Error in reading file:%v", err)
+			}
+
+			if got, want := string(content), ContentInFileInDirThreeInCreateThreeLevelDirTest; got != want {
+				t.Errorf("File content %q not match %q", got, want)
+			}
+
+			return nil
+		}
+
+		return nil
+	})
+	if err != nil {
+		t.Errorf("error walking the path : %v\n", err)
+		return
+	}
+
+	os.RemoveAll(setup.MntDir())
+}

tools/integration_tests/operations/operations_test.go

@@ -64,6 +64,16 @@ const NumberOfFilesInNonEmptyExplicitDirectoryForDeleteTest = 2
 const PrefixFilesInNonEmptyExplicitDirectoryForDeleteTest = "filesInNonEmptyExplicitDirectoryForDeleteTest"
 const NumberOfFilesInNonEmptyExplicitSubDirectoryForDeleteTest = 1
 const PrefixFilesInNonEmptyExplicitSubDirectoryForDeleteTest = "filesInNonEmptyExplicitSubDirectoryForDeleteTest"
+const DirOneInCreateThreeLevelDirTest = "dirOneInCreateThreeLevelDirTest"
+const DirTwoInCreateThreeLevelDirTest = "dirTwoInCreateThreeLevelDirTest"
+const DirThreeInCreateThreeLevelDirTest = "dirThreeInCreateThreeLevelDirTest"
+const NumberOfObjectsInBucketDirectoryCreateTest = 1
+const NumberOfObjectsInDirOneInCreateThreeLevelDirTest = 1
+const NumberOfObjectsInDirTwoInCreateThreeLevelDirTest = 1
+const NumberOfObjectsInDirThreeInCreateThreeLevelDirTest = 1
+const PrefixFileInDirThreeInCreateThreeLevelDirTest = "fileInDirThreeInCreateThreeLevelDirTest"
+const FileInDirThreeInCreateThreeLevelDirTest = "fileInDirThreeInCreateThreeLevelDirTest1"
+const ContentInFileInDirThreeInCreateThreeLevelDirTest = "Hello world!!"
 
 func TestMain(m *testing.M) {
 	setup.ParseSetUpFlags()