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// This source file is part of the Swift.org open source project
//
// Copyright 2020 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 Swift project authors
#if canImport(XCTest)
import XCTest
@available(macOS 10.15, *)
public extension XCTestCase {
/// Create a temporary file with the given contents and returns the path to the file.
//
// FIXME: Move to a shared location.
func makeTemporaryFile(_ contents: String? = nil) -> String {
var directory = NSTemporaryDirectory()
#if os(Windows)
// Workaround: https://github.com/apple/swift-corelibs-foundation/issues/5066
if directory.hasPrefix("/") {
directory.removeFirst()
}
#endif
let filename = UUID().uuidString
let fileURL = URL(fileURLWithPath: directory).appendingPathComponent(filename)
if let contents = contents {
do {
try contents.write(to: fileURL, atomically: false, encoding: .utf8)
} catch {
XCTFail("Error while writing to file: \(error)")
}
}
let filePath = fileURL.withUnsafeFileSystemRepresentation {
if let path = $0.map(String.init(cString:)) {
return path
} else {
XCTFail("Could not convert file URL to path")
return String()
}
}
addTeardownBlock {
do {
let fileManager = FileManager.default
if fileManager.fileExists(atPath: filePath) {
try fileManager.removeItem(at: fileURL)
XCTAssertFalse(fileManager.fileExists(atPath: filePath))
}
} catch {
XCTFail("Error while deleting temporary file: \(error)")
}
}
return filePath
}
}
#endif
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