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TestFileManager.swift
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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
#if NS_FOUNDATION_ALLOWS_TESTABLE_IMPORT
#if canImport(SwiftFoundation) && !DEPLOYMENT_RUNTIME_OBJC
@testable import SwiftFoundation
#else
@testable import Foundation
#endif
#endif
class TestFileManager : XCTestCase {
func test_createDirectory() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "testdir\(NSUUID().uuidString)"
try? fm.removeItem(atPath: path)
do {
try fm.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil)
} catch {
XCTFail()
}
// Ensure attempting to create the directory again fails gracefully.
XCTAssertNil(try? fm.createDirectory(atPath: path, withIntermediateDirectories:false, attributes:nil))
var isDir: ObjCBool = false
let exists = fm.fileExists(atPath: path, isDirectory: &isDir)
XCTAssertTrue(exists)
XCTAssertTrue(isDir.boolValue)
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up file")
}
}
func test_createFile() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "testfile\(NSUUID().uuidString)"
try? fm.removeItem(atPath: path)
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(), attributes: nil))
var isDir: ObjCBool = false
let exists = fm.fileExists(atPath: path, isDirectory: &isDir)
XCTAssertTrue(exists)
XCTAssertFalse(isDir.boolValue)
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up file")
}
let permissions = NSNumber(value: Int16(0o753))
let attributes = [FileAttributeKey.posixPermissions: permissions]
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(),
attributes: attributes))
guard let retrievedAtributes = try? fm.attributesOfItem(atPath: path) else {
XCTFail("Failed to retrieve file attributes from created file")
return
}
XCTAssertTrue(retrievedAtributes.contains(where: { (attribute) -> Bool in
guard let attributeValue = attribute.value as? NSNumber else {
return false
}
return (attribute.key == .posixPermissions)
&& (attributeValue == permissions)
}))
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up file")
}
}
func test_creatingDirectoryWithShortIntermediatePath() {
let fileManager = FileManager.default
fileManager.changeCurrentDirectoryPath(NSTemporaryDirectory())
let relativePath = NSUUID().uuidString
do {
try fileManager.createDirectory(atPath: relativePath, withIntermediateDirectories: true, attributes: nil)
try fileManager.removeItem(atPath: relativePath)
} catch {
XCTFail("Failed to create and clean up directory")
}
}
func test_moveFile() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "testfile\(NSUUID().uuidString)"
let path2 = NSTemporaryDirectory() + "testfile2\(NSUUID().uuidString)"
func cleanup() {
try? fm.removeItem(atPath: path)
try? fm.removeItem(atPath: path2)
}
cleanup()
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(), attributes: nil))
defer { cleanup() }
do {
try fm.moveItem(atPath: path, toPath: path2)
} catch {
XCTFail("Failed to move file: \(error)")
}
}
func test_fileSystemRepresentation() {
let str = "☃"
let result = FileManager.default.fileSystemRepresentation(withPath: str)
XCTAssertEqual(UInt8(bitPattern: result[0]), 0xE2)
XCTAssertEqual(UInt8(bitPattern: result[1]), 0x98)
XCTAssertEqual(UInt8(bitPattern: result[2]), 0x83)
#if !DARWIN_COMPATIBILITY_TESTS // auto-released by Darwin's Foundation
result.deallocate()
#endif
}
func test_fileExists() {
let fm = FileManager.default
let tmpDir = fm.temporaryDirectory.appendingPathComponent("testFileExistsDir")
let testFile = tmpDir.appendingPathComponent("testFile")
let goodSymLink = tmpDir.appendingPathComponent("goodSymLink")
let badSymLink = tmpDir.appendingPathComponent("badSymLink")
let dirSymLink = tmpDir.appendingPathComponent("dirSymlink")
try? fm.removeItem(atPath: tmpDir.path)
do {
try fm.createDirectory(atPath: tmpDir.path, withIntermediateDirectories: false, attributes: nil)
XCTAssertTrue(fm.createFile(atPath: testFile.path, contents: Data()))
try fm.createSymbolicLink(atPath: goodSymLink.path, withDestinationPath: testFile.path)
try fm.createSymbolicLink(atPath: badSymLink.path, withDestinationPath: "no_such_file")
try fm.createSymbolicLink(atPath: dirSymLink.path, withDestinationPath: "..")
var isDirFlag: ObjCBool = false
XCTAssertTrue(fm.fileExists(atPath: tmpDir.path))
XCTAssertTrue(fm.fileExists(atPath: tmpDir.path, isDirectory: &isDirFlag))
XCTAssertTrue(isDirFlag.boolValue)
isDirFlag = true
XCTAssertTrue(fm.fileExists(atPath: testFile.path))
XCTAssertTrue(fm.fileExists(atPath: testFile.path, isDirectory: &isDirFlag))
XCTAssertFalse(isDirFlag.boolValue)
isDirFlag = true
XCTAssertTrue(fm.fileExists(atPath: goodSymLink.path))
XCTAssertTrue(fm.fileExists(atPath: goodSymLink.path, isDirectory: &isDirFlag))
XCTAssertFalse(isDirFlag.boolValue)
isDirFlag = true
XCTAssertFalse(fm.fileExists(atPath: badSymLink.path))
XCTAssertFalse(fm.fileExists(atPath: badSymLink.path, isDirectory: &isDirFlag))
isDirFlag = false
XCTAssertTrue(fm.fileExists(atPath: dirSymLink.path))
XCTAssertTrue(fm.fileExists(atPath: dirSymLink.path, isDirectory: &isDirFlag))
XCTAssertTrue(isDirFlag.boolValue)
} catch {
XCTFail(String(describing: error))
}
try? fm.removeItem(atPath: tmpDir.path)
}
func test_isReadableFile() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "test_isReadableFile\(NSUUID().uuidString)"
do {
// create test file
XCTAssertTrue(fm.createFile(atPath: path, contents: Data()))
// test unReadable if file has no permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0000))], ofItemAtPath: path)
XCTAssertFalse(fm.isReadableFile(atPath: path))
// test readable if file has read permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0400))], ofItemAtPath: path)
XCTAssertTrue(fm.isReadableFile(atPath: path))
} catch let e {
XCTFail("\(e)")
}
}
func test_isWritableFile() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "test_isWritableFile\(NSUUID().uuidString)"
do {
// create test file
XCTAssertTrue(fm.createFile(atPath: path, contents: Data()))
// test unWritable if file has no permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0000))], ofItemAtPath: path)
XCTAssertFalse(fm.isWritableFile(atPath: path))
// test writable if file has write permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0200))], ofItemAtPath: path)
XCTAssertTrue(fm.isWritableFile(atPath: path))
} catch let e {
XCTFail("\(e)")
}
}
func test_isExecutableFile() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "test_isExecutableFile\(NSUUID().uuidString)"
do {
// create test file
XCTAssertTrue(fm.createFile(atPath: path, contents: Data()))
// test unExecutable if file has no permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0000))], ofItemAtPath: path)
XCTAssertFalse(fm.isExecutableFile(atPath: path))
// test executable if file has execute permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0100))], ofItemAtPath: path)
XCTAssertTrue(fm.isExecutableFile(atPath: path))
} catch let e {
XCTFail("\(e)")
}
}
func test_isDeletableFile() {
let fm = FileManager.default
do {
let dir_path = NSTemporaryDirectory() + "/test_isDeletableFile_dir/"
let file_path = dir_path + "test_isDeletableFile\(NSUUID().uuidString)"
// create test directory
try fm.createDirectory(atPath: dir_path, withIntermediateDirectories: true)
// create test file
XCTAssertTrue(fm.createFile(atPath: file_path, contents: Data()))
// test undeletable if parent directory has no permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0000))], ofItemAtPath: dir_path)
XCTAssertFalse(fm.isDeletableFile(atPath: file_path))
// test deletable if parent directory has all necessary permissions
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0755))], ofItemAtPath: dir_path)
XCTAssertTrue(fm.isDeletableFile(atPath: file_path))
}
catch { XCTFail("\(error)") }
// test against known undeletable file
XCTAssertFalse(fm.isDeletableFile(atPath: "/dev/null"))
}
func test_fileAttributes() throws {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "test_fileAttributes\(NSUUID().uuidString)"
try? fm.removeItem(atPath: path)
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(), attributes: nil))
do {
let attrs = try fm.attributesOfItem(atPath: path)
XCTAssertTrue(attrs.count > 0)
let fileSize = attrs[.size] as? NSNumber
XCTAssertEqual(fileSize!.int64Value, 0)
let fileModificationDate = attrs[.modificationDate] as? Date
XCTAssertGreaterThan(Date().timeIntervalSince1970, fileModificationDate!.timeIntervalSince1970)
let filePosixPermissions = attrs[.posixPermissions] as? NSNumber
XCTAssertNotEqual(filePosixPermissions!.int64Value, 0)
let fileReferenceCount = attrs[.referenceCount] as? NSNumber
XCTAssertEqual(fileReferenceCount!.int64Value, 1)
let fileSystemNumber = attrs[.systemNumber] as? NSNumber
XCTAssertNotEqual(fileSystemNumber!.int64Value, 0)
let fileSystemFileNumber = attrs[.systemFileNumber] as? NSNumber
XCTAssertNotEqual(fileSystemFileNumber!.int64Value, 0)
let fileType = attrs[.type] as? FileAttributeType
XCTAssertEqual(fileType!, .typeRegular)
let fileOwnerAccountID = attrs[.ownerAccountID] as? NSNumber
XCTAssertNotNil(fileOwnerAccountID)
let fileGroupOwnerAccountID = attrs[.groupOwnerAccountID] as? NSNumber
XCTAssertNotNil(fileGroupOwnerAccountID)
#if os(Linux)
/* ⚠️ */
if shouldAttemptXFailTests("Checking that .creationDate is set is failing on Ubuntu 16.04 when running from a Docker image. https://bugs.swift.org/browse/SR-10512") {
let requiredVersion = OperatingSystemVersion(majorVersion: 4, minorVersion: 11, patchVersion: 0)
let creationDate = attrs[.creationDate] as? Date
if ProcessInfo.processInfo.isOperatingSystemAtLeast(requiredVersion) {
XCTAssertNotNil(creationDate)
XCTAssertGreaterThan(Date().timeIntervalSince1970, try creationDate.unwrapped().timeIntervalSince1970)
} else {
XCTAssertNil(creationDate)
}
}
/* ⚠️ */
#endif
if let fileOwnerAccountName = attrs[.ownerAccountName] {
XCTAssertNotNil(fileOwnerAccountName as? String)
if let fileOwnerAccountNameStr = fileOwnerAccountName as? String {
XCTAssertFalse(fileOwnerAccountNameStr.isEmpty)
}
}
if let fileGroupOwnerAccountName = attrs[.groupOwnerAccountName] {
XCTAssertNotNil(fileGroupOwnerAccountName as? String)
if let fileGroupOwnerAccountNameStr = fileGroupOwnerAccountName as? String {
XCTAssertFalse(fileGroupOwnerAccountNameStr.isEmpty)
}
}
} catch {
XCTFail("\(error)")
}
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up files")
}
}
func test_fileSystemAttributes() {
#if !os(Android)
let fm = FileManager.default
let path = NSTemporaryDirectory()
do {
let attrs = try fm.attributesOfFileSystem(forPath: path)
XCTAssertTrue(attrs.count > 0)
let systemNumber = attrs[.systemNumber] as? NSNumber
XCTAssertNotNil(systemNumber)
let systemFreeSize = attrs[.systemFreeSize] as? NSNumber
XCTAssertNotNil(systemFreeSize)
XCTAssertNotEqual(systemFreeSize!.uint64Value, 0)
let systemSize = attrs[.systemSize] as? NSNumber
XCTAssertNotNil(systemSize)
XCTAssertGreaterThan(systemSize!.uint64Value, systemFreeSize!.uint64Value)
let systemFreeNodes = attrs[.systemFreeNodes] as? NSNumber
XCTAssertNotNil(systemFreeNodes)
XCTAssertNotEqual(systemFreeNodes!.uint64Value, 0)
let systemNodes = attrs[.systemNodes] as? NSNumber
XCTAssertNotNil(systemNodes)
XCTAssertGreaterThan(systemNodes!.uint64Value, systemFreeNodes!.uint64Value)
} catch {
XCTFail("\(error)")
}
#endif
}
func test_setFileAttributes() {
let path = NSTemporaryDirectory() + "test_setFileAttributes\(NSUUID().uuidString)"
let fm = FileManager.default
try? fm.removeItem(atPath: path)
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(), attributes: nil))
do {
try fm.setAttributes([.posixPermissions : NSNumber(value: Int16(0o0600))], ofItemAtPath: path)
}
catch { XCTFail("\(error)") }
//read back the attributes
do {
let attributes = try fm.attributesOfItem(atPath: path)
XCTAssert((attributes[.posixPermissions] as? NSNumber)?.int16Value == 0o0600)
}
catch { XCTFail("\(error)") }
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up files")
}
// test non existent file
let noSuchFile = NSTemporaryDirectory() + "fileThatDoesntExist"
try? fm.removeItem(atPath: noSuchFile)
do {
try fm.setAttributes([.posixPermissions: 0], ofItemAtPath: noSuchFile)
XCTFail("Setting permissions of non-existent file should throw")
} catch {
}
}
func test_pathEnumerator() {
let fm = FileManager.default
let testDirName = "testdir\(NSUUID().uuidString)"
let basePath = NSTemporaryDirectory() + "\(testDirName)"
let itemPath = NSTemporaryDirectory() + "\(testDirName)/item"
let basePath2 = NSTemporaryDirectory() + "\(testDirName)/path2"
let itemPath2 = NSTemporaryDirectory() + "\(testDirName)/path2/item"
try? fm.removeItem(atPath: basePath)
do {
try fm.createDirectory(atPath: basePath, withIntermediateDirectories: false, attributes: nil)
try fm.createDirectory(atPath: basePath2, withIntermediateDirectories: false, attributes: nil)
let _ = fm.createFile(atPath: itemPath, contents: Data(count: 123), attributes: nil)
let _ = fm.createFile(atPath: itemPath2, contents: Data(count: 456), attributes: nil)
} catch {
XCTFail()
}
var item1FileAttributes: [FileAttributeKey: Any]!
var item2FileAttributes: [FileAttributeKey: Any]!
if let e = FileManager.default.enumerator(atPath: basePath) {
let attrs = e.directoryAttributes
XCTAssertNotNil(attrs)
XCTAssertEqual(attrs?[.type] as? FileAttributeType, .typeDirectory)
var foundItems = Set<String>()
while let item = e.nextObject() as? String {
foundItems.insert(item)
if item == "item" {
item1FileAttributes = e.fileAttributes
} else if item == "path2/item" {
item2FileAttributes = e.fileAttributes
}
}
XCTAssertEqual(foundItems, Set(["item", "path2", "path2/item"]))
} else {
XCTFail()
}
XCTAssertNotNil(item1FileAttributes)
if let size = item1FileAttributes[.size] as? NSNumber {
XCTAssertEqual(size.int64Value, 123)
} else {
XCTFail("Cant get file size for 'item'")
}
XCTAssertNotNil(item2FileAttributes)
if let size = item2FileAttributes[.size] as? NSNumber {
XCTAssertEqual(size.int64Value, 456)
} else {
XCTFail("Cant get file size for 'path2/item'")
}
if let e2 = FileManager.default.enumerator(atPath: basePath) {
var foundItems = Set<String>()
while let item = e2.nextObject() as? String {
foundItems.insert(item)
if item == "path2" {
e2.skipDescendants()
XCTAssertEqual(e2.level, 1)
XCTAssertNotNil(e2.fileAttributes)
}
}
XCTAssertEqual(foundItems, Set(["item", "path2"]))
} else {
XCTFail()
}
}
func test_directoryEnumerator() {
let fm = FileManager.default
let basePath = NSTemporaryDirectory() + "testdir\(NSUUID().uuidString)/"
let subDirs1 = basePath + "subdir1/subdir2/.hiddenDir/subdir3/"
let subDirs2 = basePath + "subdir1/subdir2/subdir4.app/subdir5./.subdir6.ext/subdir7.ext./"
let itemPath1 = basePath + "itemFile1"
let itemPath2 = subDirs1 + "itemFile2."
let itemPath3 = subDirs1 + "itemFile3.ext."
let hiddenItem1 = basePath + ".hiddenFile1"
let hiddenItem2 = subDirs1 + ".hiddenFile2"
let hiddenItem3 = subDirs2 + ".hiddenFile3"
let hiddenItem4 = subDirs2 + ".hiddenFile4.ext"
var fileLevels: [String: Int] = [
"itemFile1": 1,
".hiddenFile1": 1,
"subdir1": 1,
"subdir2": 2,
"subdir4.app": 3,
"subdir5.": 4,
".subdir6.ext": 5,
"subdir7.ext.": 6,
".hiddenFile4.ext": 7,
".hiddenFile3": 7,
".hiddenDir": 3,
"subdir3": 4,
"itemFile3.ext.": 5,
"itemFile2.": 5,
".hiddenFile2": 5
]
func directoryItems(options: FileManager.DirectoryEnumerationOptions) -> [String: Int]? {
if let e = FileManager.default.enumerator(at: URL(fileURLWithPath: basePath), includingPropertiesForKeys: nil, options: options, errorHandler: nil) {
var foundItems = [String:Int]()
while let item = e.nextObject() as? URL {
foundItems[item.lastPathComponent] = e.level
}
return foundItems
} else {
return nil
}
}
try? fm.removeItem(atPath: basePath)
defer { try? fm.removeItem(atPath: basePath) }
XCTAssertNotNil(try? fm.createDirectory(atPath: subDirs1, withIntermediateDirectories: true, attributes: nil))
XCTAssertNotNil(try? fm.createDirectory(atPath: subDirs2, withIntermediateDirectories: true, attributes: nil))
for filename in [itemPath1, itemPath2, itemPath3, hiddenItem1, hiddenItem2, hiddenItem3, hiddenItem4] {
XCTAssertTrue(fm.createFile(atPath: filename, contents: Data(), attributes: nil), "Cant create file '\(filename)'")
}
if let foundItems = directoryItems(options: []) {
XCTAssertEqual(foundItems.count, fileLevels.count)
for (name, level) in foundItems {
XCTAssertEqual(fileLevels[name], level, "File level for \(name) is wrong")
}
} else {
XCTFail("Cant enumerate directory at \(basePath) with options: []")
}
if let foundItems = directoryItems(options: [.skipsHiddenFiles]) {
XCTAssertEqual(foundItems.count, 5)
} else {
XCTFail("Cant enumerate directory at \(basePath) with options: [.skipsHiddenFiles]")
}
if let foundItems = directoryItems(options: [.skipsSubdirectoryDescendants]) {
XCTAssertEqual(foundItems.count, 3)
} else {
XCTFail("Cant enumerate directory at \(basePath) with options: [.skipsSubdirectoryDescendants]")
}
if let foundItems = directoryItems(options: [.skipsHiddenFiles, .skipsSubdirectoryDescendants]) {
XCTAssertEqual(foundItems.count, 2)
} else {
XCTFail("Cant enumerate directory at \(basePath) with options: [.skipsHiddenFiles, .skipsSubdirectoryDescendants]")
}
if let foundItems = directoryItems(options: [.skipsPackageDescendants]) {
#if DARWIN_COMPATIBILITY_TESTS
XCTAssertEqual(foundItems.count, 10) // Only native Foundation does not gnore .skipsPackageDescendants
#else
XCTAssertEqual(foundItems.count, 15)
#endif
} else {
XCTFail("Cant enumerate directory at \(basePath) with options: [.skipsHiddenFiles, .skipsSubdirectoryDescendants]")
}
var didGetError = false
let handler : (URL, Error) -> Bool = { (URL, Error) in
didGetError = true
return true
}
if let e = FileManager.default.enumerator(at: URL(fileURLWithPath: "/nonexistent-path"), includingPropertiesForKeys: nil, options: [], errorHandler: handler) {
XCTAssertNil(e.nextObject())
} else {
XCTFail()
}
XCTAssertTrue(didGetError)
do {
let contents = try FileManager.default.contentsOfDirectory(at: URL(fileURLWithPath: basePath), includingPropertiesForKeys: nil, options: []).map {
return $0.path
}
XCTAssertEqual(contents.count, 3)
} catch {
XCTFail()
}
}
func test_contentsOfDirectoryAtPath() {
let fm = FileManager.default
let testDirName = "testdir\(NSUUID().uuidString)"
let path = NSTemporaryDirectory() + "\(testDirName)"
let itemPath1 = NSTemporaryDirectory() + "\(testDirName)/item"
let itemPath2 = NSTemporaryDirectory() + "\(testDirName)/item2"
try? fm.removeItem(atPath: path)
do {
try fm.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil)
let _ = fm.createFile(atPath: itemPath1, contents: Data(), attributes: nil)
let _ = fm.createFile(atPath: itemPath2, contents: Data(), attributes: nil)
} catch {
XCTFail()
}
do {
let entries = try fm.contentsOfDirectory(atPath: path)
XCTAssertEqual(2, entries.count)
XCTAssertTrue(entries.contains("item"))
XCTAssertTrue(entries.contains("item2"))
}
catch {
XCTFail()
}
do {
// Check a bad path fails
let _ = try fm.contentsOfDirectory(atPath: "/...")
XCTFail()
}
catch {
// Invalid directories should fail.
}
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up files")
}
}
func test_subpathsOfDirectoryAtPath() {
let fm = FileManager.default
let path = NSTemporaryDirectory() + "testdir"
let path2 = NSTemporaryDirectory() + "testdir/sub"
let itemPath1 = NSTemporaryDirectory() + "testdir/item"
let itemPath2 = NSTemporaryDirectory() + "testdir/item2"
let itemPath3 = NSTemporaryDirectory() + "testdir/sub/item3"
try? fm.removeItem(atPath: path)
do {
try fm.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil)
let _ = fm.createFile(atPath: itemPath1, contents: Data(), attributes: nil)
let _ = fm.createFile(atPath: itemPath2, contents: Data(), attributes: nil)
try fm.createDirectory(atPath: path2, withIntermediateDirectories: false, attributes: nil)
let _ = fm.createFile(atPath: itemPath3, contents: Data(), attributes: nil)
} catch {
XCTFail()
}
do {
let entries = try fm.subpathsOfDirectory(atPath: path)
XCTAssertEqual(4, entries.count)
XCTAssertTrue(entries.contains("item"))
XCTAssertTrue(entries.contains("item2"))
XCTAssertTrue(entries.contains("sub"))
XCTAssertTrue(entries.contains("sub/item3"))
XCTAssertEqual(fm.subpaths(atPath: path), entries)
}
catch {
XCTFail()
}
do {
// Check a bad path fails
XCTAssertNil(fm.subpaths(atPath: "/..."))
let _ = try fm.subpathsOfDirectory(atPath: "/...")
XCTFail()
}
catch {
// Invalid directories should fail.
}
do {
try fm.removeItem(atPath: path)
} catch {
XCTFail("Failed to clean up files")
}
}
private func directoryExists(atPath path: String) -> Bool {
var isDir: ObjCBool = false
let exists = FileManager.default.fileExists(atPath: path, isDirectory: &isDir)
return exists && isDir.boolValue
}
func test_copyItemAtPathToPath() {
let fm = FileManager.default
let srcPath = NSTemporaryDirectory() + "testdir\(NSUUID().uuidString)"
let destPath = NSTemporaryDirectory() + "testdir\(NSUUID().uuidString)"
func cleanup() {
try? fm.removeItem(atPath: srcPath)
try? fm.removeItem(atPath: destPath)
}
func createDirectory(atPath path: String) {
do {
try fm.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil)
} catch {
XCTFail("Unable to create directory: \(error)")
}
XCTAssertTrue(directoryExists(atPath: path))
}
func createFile(atPath path: String) {
XCTAssertTrue(fm.createFile(atPath: path, contents: Data(), attributes: nil))
}
cleanup()
createFile(atPath: srcPath)
do {
try fm.copyItem(atPath: srcPath, toPath: destPath)
} catch {
XCTFail("Failed to copy file: \(error)")
}
cleanup()
createDirectory(atPath: srcPath)
createDirectory(atPath: "\(srcPath)/tempdir")
createDirectory(atPath: "\(srcPath)/tempdir/subdir")
createDirectory(atPath: "\(srcPath)/tempdir/subdir/otherdir")
createDirectory(atPath: "\(srcPath)/tempdir/subdir/otherdir/extradir")
createFile(atPath: "\(srcPath)/tempdir/tempfile")
createFile(atPath: "\(srcPath)/tempdir/tempfile2")
createFile(atPath: "\(srcPath)/tempdir/subdir/otherdir/extradir/tempfile2")
do {
try fm.copyItem(atPath: srcPath, toPath: destPath)
} catch {
XCTFail("Unable to copy directory: \(error)")
}
XCTAssertTrue(directoryExists(atPath: destPath))
XCTAssertTrue(directoryExists(atPath: "\(destPath)/tempdir"))
XCTAssertTrue(fm.fileExists(atPath: "\(destPath)/tempdir/tempfile"))
XCTAssertTrue(fm.fileExists(atPath: "\(destPath)/tempdir/tempfile2"))
XCTAssertTrue(directoryExists(atPath: "\(destPath)/tempdir/subdir/otherdir/extradir"))
XCTAssertTrue(fm.fileExists(atPath: "\(destPath)/tempdir/subdir/otherdir/extradir/tempfile2"))
if (false == directoryExists(atPath: destPath)) {
return
}
do {
try fm.copyItem(atPath: srcPath, toPath: destPath)
XCTFail("Copy overwrites a file/folder that already exists")
} catch {
// ignore
}
// Test copying a symlink
let srcLink = srcPath + "/testlink"
let destLink = destPath + "/testlink"
do {
try fm.createSymbolicLink(atPath: srcLink, withDestinationPath: "linkdest")
try fm.copyItem(atPath: srcLink, toPath: destLink)
XCTAssertEqual(try fm.destinationOfSymbolicLink(atPath: destLink), "linkdest")
} catch {
XCTFail("\(error)")
}
do {
try fm.copyItem(atPath: srcLink, toPath: destLink)
XCTFail("Creating link where one already exists")
} catch {
// ignore
}
}
func test_linkItemAtPathToPath() {
let fm = FileManager.default
let basePath = NSTemporaryDirectory() + "linkItemAtPathToPath/"
let srcPath = basePath + "testdir\(NSUUID().uuidString)"
let destPath = basePath + "testdir\(NSUUID().uuidString)"
defer { try? fm.removeItem(atPath: basePath) }
func getFileInfo(atPath path: String, _ body: (String, Bool, UInt64, UInt64) -> ()) {
guard let enumerator = fm.enumerator(atPath: path) else {
XCTFail("Cant enumerate \(path)")
return
}
while let item = enumerator.nextObject() as? String {
let fname = "\(path)/\(item)"
do {
let attrs = try fm.attributesOfItem(atPath: fname)
let inode = (attrs[.systemFileNumber] as? NSNumber)?.uint64Value
let linkCount = (attrs[.referenceCount] as? NSNumber)?.uint64Value
let ftype = attrs[.type] as? FileAttributeType
if inode == nil || linkCount == nil || ftype == nil {
XCTFail("Unable to get attributes of \(fname)")
return
}
let isDir = (ftype == .typeDirectory)
body(item, isDir, inode!, linkCount!)
} catch {
XCTFail("Unable to get attributes of \(fname): \(error)")
return
}
}
}
try? fm.removeItem(atPath: basePath)
XCTAssertNotNil(try? fm.createDirectory(atPath: "\(srcPath)/tempdir/subdir/otherdir/extradir", withIntermediateDirectories: true, attributes: nil))
XCTAssertTrue(fm.createFile(atPath: "\(srcPath)/tempdir/tempfile", contents: Data(), attributes: nil))
XCTAssertTrue(fm.createFile(atPath: "\(srcPath)/tempdir/tempfile2", contents: Data(), attributes: nil))
XCTAssertTrue(fm.createFile(atPath: "\(srcPath)/tempdir/subdir/otherdir/extradir/tempfile2", contents: Data(), attributes: nil))
var fileInfos: [String: (Bool, UInt64, UInt64)] = [:]
getFileInfo(atPath: srcPath, { name, isDir, inode, linkCount in
fileInfos[name] = (isDir, inode, linkCount)
})
XCTAssertEqual(fileInfos.count, 7)
XCTAssertNotNil(try? fm.linkItem(atPath: srcPath, toPath: destPath), "Unable to link directory")
getFileInfo(atPath: destPath, { name, isDir, inode, linkCount in
guard let srcFileInfo = fileInfos.removeValue(forKey: name) else {
XCTFail("Cant find \(name) in \(destPath)")
return
}
let (srcIsDir, srcInode, srcLinkCount) = srcFileInfo
XCTAssertEqual(srcIsDir, isDir, "Directory/File type mismatch")
if isDir {
XCTAssertEqual(srcLinkCount, linkCount)
} else {
XCTAssertEqual(srcInode, inode)
XCTAssertEqual(srcLinkCount + 1, linkCount)
}
})
XCTAssertEqual(fileInfos.count, 0)
// linkItem should fail a 2nd time
XCTAssertNil(try? fm.linkItem(atPath: srcPath, toPath: destPath), "Copy overwrites a file/folder that already exists")
// Test 'linking' a symlink, which actually does a copy
let srcLink = srcPath + "/testlink"
let destLink = destPath + "/testlink"
do {
try fm.createSymbolicLink(atPath: srcLink, withDestinationPath: "linkdest")
try fm.linkItem(atPath: srcLink, toPath: destLink)
XCTAssertEqual(try fm.destinationOfSymbolicLink(atPath: destLink), "linkdest")
} catch {
XCTFail("\(error)")
}
XCTAssertNil(try? fm.linkItem(atPath: srcLink, toPath: destLink), "Creating link where one already exists")
}
func test_homedirectoryForUser() {
let filemanger = FileManager.default
XCTAssertNil(filemanger.homeDirectory(forUser: "someuser"))
XCTAssertNil(filemanger.homeDirectory(forUser: ""))
XCTAssertNotNil(filemanger.homeDirectoryForCurrentUser)
}
func test_temporaryDirectoryForUser() {
let filemanger = FileManager.default
let tmpDir = filemanger.temporaryDirectory
let tmpFileUrl = tmpDir.appendingPathComponent("test.bin")
let tmpFilePath = tmpFileUrl.path
do {
if filemanger.fileExists(atPath: tmpFilePath) {
try filemanger.removeItem(at: tmpFileUrl)
}
try "hello world".write(to: tmpFileUrl, atomically: false, encoding: .utf8)
XCTAssert(filemanger.fileExists(atPath: tmpFilePath))
try filemanger.removeItem(at: tmpFileUrl)
} catch {
XCTFail("Unable to write a file to the temporary directory: \(tmpDir), err: \(error)")
}
}
func test_mountedVolumeURLs() {
guard let volumes = FileManager.default.mountedVolumeURLs(includingResourceValuesForKeys:[], options: []) else {
XCTFail("mountedVolumeURLs returned nil")
return
}
XCTAssertNotEqual(0, volumes.count)
XCTAssertTrue(volumes.contains(URL(fileURLWithPath: "/")))
#if os(macOS)
// On macOS, .skipHiddenVolumes should hide 'nobrowse' volumes of which there should be at least one
guard let visibleVolumes = FileManager.default.mountedVolumeURLs(includingResourceValuesForKeys: [], options: [.skipHiddenVolumes]) else {
XCTFail("mountedVolumeURLs returned nil")
return
}
XCTAssertTrue(visibleVolumes.count > 0)
XCTAssertTrue(visibleVolumes.count < volumes.count)
#endif
}
func test_contentsEqual() {
let fm = FileManager.default
let tmpParentDirURL = URL(fileURLWithPath: NSTemporaryDirectory() + "test_contentsEqualdir", isDirectory: true)
let testDir1 = tmpParentDirURL.appendingPathComponent("testDir1")
let testDir2 = tmpParentDirURL.appendingPathComponent("testDir2")
let testDir3 = testDir1.appendingPathComponent("subDir/anotherDir/extraDir/lastDir")
defer { try? fm.removeItem(atPath: tmpParentDirURL.path) }
func testFileURL(_ name: String, _ ext: String) -> URL? {
guard let url = testBundle().url(forResource: name, withExtension: ext) else {
XCTFail("Cant open \(name).\(ext)")
return nil
}
return url
}
guard let testFile1URL = testFileURL("NSStringTestData", "txt") else { return }
guard let testFile2URL = testFileURL("NSURLTestData", "plist") else { return }
guard let testFile3URL = testFileURL("NSString-UTF32-BE-data", "txt") else { return }
guard let testFile4URL = testFileURL("NSString-UTF32-LE-data", "txt") else { return }
let symlink = testDir1.appendingPathComponent("testlink").path
// Setup test directories
do {
// Clean out and leftover test data
try? fm.removeItem(atPath: tmpParentDirURL.path)
// testDir1
try fm.createDirectory(atPath: testDir1.path, withIntermediateDirectories: true)
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("null1").path, withDestinationPath: "/dev/null")
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("zero1").path, withDestinationPath: "/dev/zero")
try "foo".write(toFile: testDir1.appendingPathComponent("foo.txt").path, atomically: false, encoding: .ascii)
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("foo1").path, withDestinationPath: "foo.txt")
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("bar2").path, withDestinationPath: "foo1")
let unreadable = testDir1.appendingPathComponent("unreadable_file").path
try "unreadable".write(toFile: unreadable, atomically: false, encoding: .ascii)
try fm.setAttributes([.posixPermissions: NSNumber(value: 0)], ofItemAtPath: unreadable)
try Data().write(to: testDir1.appendingPathComponent("empty_file"))
try fm.createSymbolicLink(atPath: symlink, withDestinationPath: testFile1URL.path)
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("thisDir").path, withDestinationPath: ".")
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("parentDir").path, withDestinationPath: "..")
try fm.createSymbolicLink(atPath: testDir1.appendingPathComponent("rootDir").path, withDestinationPath: "/")
// testDir2
try fm.createDirectory(atPath: testDir2.path, withIntermediateDirectories: true)
try fm.createSymbolicLink(atPath: testDir2.appendingPathComponent("bar2").path, withDestinationPath: "foo1")
try fm.createSymbolicLink(atPath: testDir2.appendingPathComponent("foo2").path, withDestinationPath: "../testDir1/foo.txt")
// testDir3
try fm.createDirectory(atPath: testDir3.path, withIntermediateDirectories: true)
try fm.createSymbolicLink(atPath: testDir3.appendingPathComponent("bar2").path, withDestinationPath: "foo1")
try fm.createSymbolicLink(atPath: testDir3.appendingPathComponent("foo2").path, withDestinationPath: "../testDir1/foo.txt")
} catch {
XCTFail(String(describing: error))
}
XCTAssertTrue(fm.contentsEqual(atPath: "/dev/null", andPath: "/dev/null"))
XCTAssertTrue(fm.contentsEqual(atPath: "/dev/urandom", andPath: "/dev/urandom"))
XCTAssertFalse(fm.contentsEqual(atPath: "/dev/null", andPath: "/dev/zero"))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.appendingPathComponent("null1").path, andPath: "/dev/null"))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.appendingPathComponent("zero").path, andPath: "/dev/zero"))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.appendingPathComponent("foo.txt").path, andPath: testDir1.appendingPathComponent("foo1").path))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.appendingPathComponent("foo.txt").path, andPath: testDir1.appendingPathComponent("foo2").path))
XCTAssertTrue(fm.contentsEqual(atPath: testDir1.appendingPathComponent("bar2").path, andPath: testDir2.appendingPathComponent("bar2").path))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.appendingPathComponent("foo1").path, andPath: testDir2.appendingPathComponent("foo2").path))
XCTAssertFalse(fm.contentsEqual(atPath: "/non_existent_file", andPath: "/non_existent_file"))
let emptyFile = testDir1.appendingPathComponent("empty_file")
XCTAssertFalse(fm.contentsEqual(atPath: emptyFile.path, andPath: "/dev/null"))
XCTAssertFalse(fm.contentsEqual(atPath: emptyFile.path, andPath: testDir1.appendingPathComponent("null1").path))
XCTAssertFalse(fm.contentsEqual(atPath: emptyFile.path, andPath: testDir1.appendingPathComponent("unreadable_file").path))
XCTAssertTrue(fm.contentsEqual(atPath: testFile1URL.path, andPath: testFile1URL.path))
XCTAssertFalse(fm.contentsEqual(atPath: testFile1URL.path, andPath: testFile2URL.path))
XCTAssertFalse(fm.contentsEqual(atPath: testFile3URL.path, andPath: testFile4URL.path))
XCTAssertFalse(fm.contentsEqual(atPath: symlink, andPath: testFile1URL.path))
XCTAssertTrue(fm.contentsEqual(atPath: testDir1.path, andPath: testDir1.path))
XCTAssertTrue(fm.contentsEqual(atPath: testDir2.path, andPath: testDir3.path))
XCTAssertFalse(fm.contentsEqual(atPath: testDir1.path, andPath: testDir2.path))
// Copy everything in testDir1 to testDir2 to make them equal
do {
for entry in try fm.subpathsOfDirectory(atPath: testDir1.path) {
// Skip entries that already exist
if entry == "bar2" || entry == "unreadable_file" {
continue
}