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apple--containerization/Tests/ContainerizationEXT4Tests/TestEXT4Format+Create.swift
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chore: import upstream snapshot with attribution
2026-07-13 12:25:30 +08:00

81 lines
3.9 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2025-2026 Apple Inc. and the Containerization project authors.
//
// 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
//
// https://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.
//===----------------------------------------------------------------------===//
//
import Foundation
import SystemPackage
import Testing
@testable import ContainerizationEXT4
struct Ext4FormatCreateTests {
@Test func fileReplace() throws {
let fsPath = FilePath(
FileManager.default.temporaryDirectory
.appendingPathComponent(UUID().uuidString, isDirectory: false))
defer { try? FileManager.default.removeItem(at: fsPath.url) }
let formatter = try EXT4.Formatter(fsPath, minDiskSize: 32.kib())
defer { try? formatter.close() }
try formatter.create(path: FilePath("/file"), mode: EXT4.Inode.Mode(.S_IFREG, 0o755), buf: nil) // create a regular file
#expect(throws: Never.self) {
try formatter.create(path: FilePath("/file"), mode: EXT4.Inode.Mode(.S_IFREG, 0o755), buf: nil)
} // overwrite it with a regular file
#expect(throws: Error.self) { try formatter.create(path: FilePath("/file"), mode: EXT4.Inode.Mode(.S_IFDIR, 0o700)) } // overwrite it with a directory
}
@Test func dirReplace() throws {
let fsPath = FilePath(
FileManager.default.temporaryDirectory
.appendingPathComponent(UUID().uuidString, isDirectory: false))
defer { try? FileManager.default.removeItem(at: fsPath.url) }
let formatter = try EXT4.Formatter(fsPath, minDiskSize: 32.kib())
defer { try? formatter.close() }
try formatter.create(path: FilePath("/dir"), mode: EXT4.Inode.Mode(.S_IFDIR, 0o700)) // create a directory
#expect(throws: Never.self) {
try formatter.create(path: FilePath("/dir"), mode: EXT4.Inode.Mode(.S_IFDIR, 0o700))
} // overwrite it with a directory
#expect(throws: Error.self) { try formatter.create(path: FilePath("/dir"), mode: EXT4.Inode.Mode(.S_IFREG, 0o755)) } // overwrite it with a file
}
@Test func fileParentFails() throws {
let fsPath = FilePath(
FileManager.default.temporaryDirectory
.appendingPathComponent(UUID().uuidString, isDirectory: false))
defer { try? FileManager.default.removeItem(at: fsPath.url) }
let formatter = try EXT4.Formatter(fsPath, minDiskSize: 32.kib())
defer { try? formatter.close() }
try formatter.create(path: FilePath("/file"), mode: EXT4.Inode.Mode(.S_IFREG, 0o755), buf: nil) // create a regular file
#expect(throws: Error.self) { try formatter.create(path: FilePath("/file/dir"), mode: EXT4.Inode.Mode(.S_IFDIR, 0o700)) } // create a subdir in a file?
}
@Test func createParentAutomatically() throws {
let fsPath = FilePath(
FileManager.default.temporaryDirectory
.appendingPathComponent(UUID().uuidString, isDirectory: false))
defer { try? FileManager.default.removeItem(at: fsPath.url) }
let formatter = try EXT4.Formatter(fsPath, minDiskSize: 32.kib())
defer { try? formatter.close() }
#expect(throws: Never.self) {
try formatter.create(path: FilePath("/parent/file"), mode: EXT4.Inode.Mode(.S_IFREG, 0o755), buf: nil)
} // should create /parent automatically
}
}