1 files changed, 351 insertions, 0 deletions
diff --git a/test/fuse_integration/directory_operations_test.go b/test/fuse_integration/directory_operations_test.go
new file mode 100644
index 000000000..060a3a027
--- /dev/null
+++ b/test/fuse_integration/directory_operations_test.go
@@ -0,0 +1,351 @@
+package fuse_test
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// TestDirectoryOperations tests fundamental FUSE directory operations
+func TestDirectoryOperations(t *testing.T) {
+	framework := NewFuseTestFramework(t, DefaultTestConfig())
+	defer framework.Cleanup()
+
+	require.NoError(t, framework.Setup(DefaultTestConfig()))
+
+	t.Run("CreateDirectory", func(t *testing.T) {
+		testCreateDirectory(t, framework)
+	})
+
+	t.Run("RemoveDirectory", func(t *testing.T) {
+		testRemoveDirectory(t, framework)
+	})
+
+	t.Run("ReadDirectory", func(t *testing.T) {
+		testReadDirectory(t, framework)
+	})
+
+	t.Run("NestedDirectories", func(t *testing.T) {
+		testNestedDirectories(t, framework)
+	})
+
+	t.Run("DirectoryPermissions", func(t *testing.T) {
+		testDirectoryPermissions(t, framework)
+	})
+
+	t.Run("DirectoryRename", func(t *testing.T) {
+		testDirectoryRename(t, framework)
+	})
+}
+
+// testCreateDirectory tests creating directories
+func testCreateDirectory(t *testing.T, framework *FuseTestFramework) {
+	dirName := "test_directory"
+	mountPath := filepath.Join(framework.GetMountPoint(), dirName)
+
+	// Create directory
+	require.NoError(t, os.Mkdir(mountPath, 0755))
+
+	// Verify directory exists
+	info, err := os.Stat(mountPath)
+	require.NoError(t, err)
+	assert.True(t, info.IsDir())
+	assert.Equal(t, os.FileMode(0755), info.Mode().Perm())
+}
+
+// testRemoveDirectory tests removing directories
+func testRemoveDirectory(t *testing.T, framework *FuseTestFramework) {
+	dirName := "test_remove_dir"
+	mountPath := filepath.Join(framework.GetMountPoint(), dirName)
+
+	// Create directory
+	require.NoError(t, os.Mkdir(mountPath, 0755))
+
+	// Verify it exists
+	_, err := os.Stat(mountPath)
+	require.NoError(t, err)
+
+	// Remove directory
+	require.NoError(t, os.Remove(mountPath))
+
+	// Verify it's gone
+	_, err = os.Stat(mountPath)
+	require.True(t, os.IsNotExist(err))
+}
+
+// testReadDirectory tests reading directory contents
+func testReadDirectory(t *testing.T, framework *FuseTestFramework) {
+	testDir := "test_read_dir"
+	framework.CreateTestDir(testDir)
+
+	// Create various types of entries
+	entries := []string{
+		"file1.txt",
+		"file2.log",
+		"subdir1",
+		"subdir2",
+		"script.sh",
+	}
+
+	// Create files and subdirectories
+	for _, entry := range entries {
+		entryPath := filepath.Join(testDir, entry)
+		if entry == "subdir1" || entry == "subdir2" {
+			framework.CreateTestDir(entryPath)
+		} else {
+			framework.CreateTestFile(entryPath, []byte("content of "+entry))
+		}
+	}
+
+	// Read directory
+	mountPath := filepath.Join(framework.GetMountPoint(), testDir)
+	dirEntries, err := os.ReadDir(mountPath)
+	require.NoError(t, err)
+
+	// Verify all entries are present
+	var actualNames []string
+	for _, entry := range dirEntries {
+		actualNames = append(actualNames, entry.Name())
+	}
+
+	sort.Strings(entries)
+	sort.Strings(actualNames)
+	assert.Equal(t, entries, actualNames)
+
+	// Verify entry types
+	for _, entry := range dirEntries {
+		if entry.Name() == "subdir1" || entry.Name() == "subdir2" {
+			assert.True(t, entry.IsDir())
+		} else {
+			assert.False(t, entry.IsDir())
+		}
+	}
+}
+
+// testNestedDirectories tests operations on nested directory structures
+func testNestedDirectories(t *testing.T, framework *FuseTestFramework) {
+	// Create nested structure: parent/child1/grandchild/child2
+	structure := []string{
+		"parent",
+		"parent/child1",
+		"parent/child1/grandchild",
+		"parent/child2",
+	}
+
+	// Create directories
+	for _, dir := range structure {
+		framework.CreateTestDir(dir)
+	}
+
+	// Create files at various levels
+	files := map[string][]byte{
+		"parent/root_file.txt":                   []byte("root level"),
+		"parent/child1/child_file.txt":           []byte("child level"),
+		"parent/child1/grandchild/deep_file.txt": []byte("deep level"),
+		"parent/child2/another_file.txt":         []byte("another child"),
+	}
+
+	for path, content := range files {
+		framework.CreateTestFile(path, content)
+	}
+
+	// Verify structure by walking
+	mountPath := filepath.Join(framework.GetMountPoint(), "parent")
+	var foundPaths []string
+
+	err := filepath.Walk(mountPath, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		// Get relative path from mount point
+		relPath, _ := filepath.Rel(framework.GetMountPoint(), path)
+		foundPaths = append(foundPaths, relPath)
+		return nil
+	})
+	require.NoError(t, err)
+
+	// Verify all expected paths were found
+	expectedPaths := []string{
+		"parent",
+		"parent/child1",
+		"parent/child1/grandchild",
+		"parent/child1/grandchild/deep_file.txt",
+		"parent/child1/child_file.txt",
+		"parent/child2",
+		"parent/child2/another_file.txt",
+		"parent/root_file.txt",
+	}
+
+	sort.Strings(expectedPaths)
+	sort.Strings(foundPaths)
+	assert.Equal(t, expectedPaths, foundPaths)
+
+	// Verify file contents
+	for path, expectedContent := range files {
+		framework.AssertFileContent(path, expectedContent)
+	}
+}
+
+// testDirectoryPermissions tests directory permission operations
+func testDirectoryPermissions(t *testing.T, framework *FuseTestFramework) {
+	dirName := "test_permissions_dir"
+	mountPath := filepath.Join(framework.GetMountPoint(), dirName)
+
+	// Create directory with specific permissions
+	require.NoError(t, os.Mkdir(mountPath, 0700))
+
+	// Check initial permissions
+	info, err := os.Stat(mountPath)
+	require.NoError(t, err)
+	assert.Equal(t, os.FileMode(0700), info.Mode().Perm())
+
+	// Change permissions
+	require.NoError(t, os.Chmod(mountPath, 0755))
+
+	// Verify permission change
+	info, err = os.Stat(mountPath)
+	require.NoError(t, err)
+	assert.Equal(t, os.FileMode(0755), info.Mode().Perm())
+}
+
+// testDirectoryRename tests renaming directories
+func testDirectoryRename(t *testing.T, framework *FuseTestFramework) {
+	oldName := "old_directory"
+	newName := "new_directory"
+
+	// Create directory with content
+	framework.CreateTestDir(oldName)
+	framework.CreateTestFile(filepath.Join(oldName, "test_file.txt"), []byte("test content"))
+
+	oldPath := filepath.Join(framework.GetMountPoint(), oldName)
+	newPath := filepath.Join(framework.GetMountPoint(), newName)
+
+	// Rename directory
+	require.NoError(t, os.Rename(oldPath, newPath))
+
+	// Verify old path doesn't exist
+	_, err := os.Stat(oldPath)
+	require.True(t, os.IsNotExist(err))
+
+	// Verify new path exists and is a directory
+	info, err := os.Stat(newPath)
+	require.NoError(t, err)
+	assert.True(t, info.IsDir())
+
+	// Verify content still exists
+	framework.AssertFileContent(filepath.Join(newName, "test_file.txt"), []byte("test content"))
+}
+
+// TestComplexDirectoryOperations tests more complex directory scenarios
+func TestComplexDirectoryOperations(t *testing.T) {
+	framework := NewFuseTestFramework(t, DefaultTestConfig())
+	defer framework.Cleanup()
+
+	require.NoError(t, framework.Setup(DefaultTestConfig()))
+
+	t.Run("RemoveNonEmptyDirectory", func(t *testing.T) {
+		testRemoveNonEmptyDirectory(t, framework)
+	})
+
+	t.Run("DirectoryWithManyFiles", func(t *testing.T) {
+		testDirectoryWithManyFiles(t, framework)
+	})
+
+	t.Run("DeepDirectoryNesting", func(t *testing.T) {
+		testDeepDirectoryNesting(t, framework)
+	})
+}
+
+// testRemoveNonEmptyDirectory tests behavior when trying to remove non-empty directories
+func testRemoveNonEmptyDirectory(t *testing.T, framework *FuseTestFramework) {
+	dirName := "non_empty_dir"
+	framework.CreateTestDir(dirName)
+
+	// Add content to directory
+	framework.CreateTestFile(filepath.Join(dirName, "file.txt"), []byte("content"))
+	framework.CreateTestDir(filepath.Join(dirName, "subdir"))
+
+	mountPath := filepath.Join(framework.GetMountPoint(), dirName)
+
+	// Try to remove non-empty directory (should fail)
+	err := os.Remove(mountPath)
+	require.Error(t, err)
+
+	// Directory should still exist
+	info, err := os.Stat(mountPath)
+	require.NoError(t, err)
+	assert.True(t, info.IsDir())
+
+	// Remove with RemoveAll should work
+	require.NoError(t, os.RemoveAll(mountPath))
+
+	// Verify it's gone
+	_, err = os.Stat(mountPath)
+	require.True(t, os.IsNotExist(err))
+}
+
+// testDirectoryWithManyFiles tests directories with large numbers of files
+func testDirectoryWithManyFiles(t *testing.T, framework *FuseTestFramework) {
+	dirName := "many_files_dir"
+	framework.CreateTestDir(dirName)
+
+	// Create many files
+	numFiles := 100
+	for i := 0; i < numFiles; i++ {
+		filename := filepath.Join(dirName, fmt.Sprintf("file_%03d.txt", i))
+		content := []byte(fmt.Sprintf("Content of file %d", i))
+		framework.CreateTestFile(filename, content)
+	}
+
+	// Read directory
+	mountPath := filepath.Join(framework.GetMountPoint(), dirName)
+	entries, err := os.ReadDir(mountPath)
+	require.NoError(t, err)
+
+	// Verify count
+	assert.Equal(t, numFiles, len(entries))
+
+	// Verify some random files
+	testIndices := []int{0, 10, 50, 99}
+	for _, i := range testIndices {
+		filename := filepath.Join(dirName, fmt.Sprintf("file_%03d.txt", i))
+		expectedContent := []byte(fmt.Sprintf("Content of file %d", i))
+		framework.AssertFileContent(filename, expectedContent)
+	}
+}
+
+// testDeepDirectoryNesting tests very deep directory structures
+func testDeepDirectoryNesting(t *testing.T, framework *FuseTestFramework) {
+	// Create deep nesting (20 levels)
+	depth := 20
+	currentPath := ""
+
+	for i := 0; i < depth; i++ {
+		if i == 0 {
+			currentPath = fmt.Sprintf("level_%02d", i)
+		} else {
+			currentPath = filepath.Join(currentPath, fmt.Sprintf("level_%02d", i))
+		}
+		framework.CreateTestDir(currentPath)
+	}
+
+	// Create a file at the deepest level
+	deepFile := filepath.Join(currentPath, "deep_file.txt")
+	deepContent := []byte("This is very deep!")
+	framework.CreateTestFile(deepFile, deepContent)
+
+	// Verify file exists and has correct content
+	framework.AssertFileContent(deepFile, deepContent)
+
+	// Verify we can navigate the full structure
+	mountPath := filepath.Join(framework.GetMountPoint(), currentPath)
+	info, err := os.Stat(mountPath)
+	require.NoError(t, err)
+	assert.True(t, info.IsDir())
+}