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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
struct SwiftCustomNSError: Error, CustomNSError {
}
class TestNSError : XCTestCase {
func test_LocalizedError_errorDescription() {
struct Error : LocalizedError {
var errorDescription: String? { return "error description" }
}
let error = Error()
XCTAssertEqual(error.localizedDescription, "error description")
}
func test_NSErrorAsError_localizedDescription() {
let nsError = NSError(domain: "", code: 0, userInfo: [NSLocalizedDescriptionKey: "Localized!"])
let error = nsError as Error
XCTAssertEqual(error.localizedDescription, "Localized!")
}
func test_NSError_inDictionary() {
let error = NSError(domain: "domain", code: 42, userInfo: nil)
let nsdictionary = ["error": error] as NSDictionary
let dictionary = nsdictionary as? Dictionary<String, Error>
XCTAssertNotNil(dictionary)
XCTAssertEqual(error, dictionary?["error"] as? NSError)
}
func test_CustomNSError_domain() {
let name = testBundleName()
XCTAssertEqual(SwiftCustomNSError.errorDomain, "\(name).SwiftCustomNSError")
}
func test_CustomNSError_userInfo() {
let userInfo = SwiftCustomNSError().errorUserInfo
XCTAssertTrue(userInfo.isEmpty)
}
func test_CustomNSError_errorCode() {
enum SwiftError : Error, CustomNSError {
case zero
case one
case two
}
XCTAssertEqual(SwiftCustomNSError().errorCode, 1)
XCTAssertEqual(SwiftError.zero.errorCode, 0)
XCTAssertEqual(SwiftError.one.errorCode, 1)
XCTAssertEqual(SwiftError.two.errorCode, 2)
}
func test_CustomNSError_errorCodeRawInt() {
enum SwiftError : Int, Error, CustomNSError {
case minusOne = -1
case fortyTwo = 42
}
XCTAssertEqual(SwiftError.minusOne.errorCode, -1)
XCTAssertEqual(SwiftError.fortyTwo.errorCode, 42)
}
func test_CustomNSError_errorCodeRawUInt() {
enum SwiftError : UInt, Error, CustomNSError {
case fortyTwo = 42
}
XCTAssertEqual(SwiftError.fortyTwo.errorCode, 42)
}
func test_errorConvenience() {
let error = CocoaError.error(.fileReadNoSuchFile, url: URL(fileURLWithPath: #file))
let nsError = error as NSError
XCTAssertEqual(nsError._domain, NSCocoaErrorDomain)
XCTAssertEqual(nsError._code, CocoaError.fileReadNoSuchFile.rawValue)
if let filePath = nsError.userInfo[NSURLErrorKey] as? URL {
XCTAssertEqual(filePath, URL(fileURLWithPath: #file))
} else {
XCTFail()
}
}
#if !canImport(ObjectiveC) || DARWIN_COMPATIBILITY_TESTS
func test_ConvertErrorToNSError_domain() {
struct CustomSwiftError: Error {
}
XCTAssertTrue((CustomSwiftError() as NSError).domain.contains("CustomSwiftError"))
}
func test_ConvertErrorToNSError_errorCode() {
enum SwiftError: Error {
case zero
case one
case two
}
XCTAssertEqual((SwiftError.zero as NSError).code, 0)
XCTAssertEqual((SwiftError.one as NSError).code, 1)
XCTAssertEqual((SwiftError.two as NSError).code, 2)
}
func test_ConvertErrorToNSError_errorCodeRawInt() {
enum SwiftError: Int, Error {
case minusOne = -1
case fortyTwo = 42
}
XCTAssertEqual((SwiftError.minusOne as NSError).code, -1)
XCTAssertEqual((SwiftError.fortyTwo as NSError).code, 42)
}
func test_ConvertErrorToNSError_errorCodeRawUInt() {
enum SwiftError: UInt, Error {
case fortyTwo = 42
}
XCTAssertEqual((SwiftError.fortyTwo as NSError).code, 42)
}
func test_ConvertErrorToNSError_errorCodeWithAssosiatedValue() {
// Default error code for enum case is based on EnumImplStrategy::getTagIndex
enum SwiftError: Error {
case one // 2
case two // 3
case three(String) // 0
case four // 4
case five(String) // 1
}
XCTAssertEqual((SwiftError.one as NSError).code, 2)
XCTAssertEqual((SwiftError.two as NSError).code, 3)
XCTAssertEqual((SwiftError.three("three") as NSError).code, 0)
XCTAssertEqual((SwiftError.four as NSError).code, 4)
XCTAssertEqual((SwiftError.five("five") as NSError).code, 1)
}
#endif
}
class TestURLError: XCTestCase {
static let testURL = URL(string: "https://swift.org")!
let userInfo: [String: Any] = [
NSURLErrorFailingURLErrorKey: TestURLError.testURL,
NSURLErrorFailingURLStringErrorKey: TestURLError.testURL.absoluteString,
]
func test_errorCode() {
let e = URLError(.unsupportedURL)
XCTAssertEqual(e.errorCode, URLError.Code.unsupportedURL.rawValue)
}
func test_failingURL() {
let e = URLError(.badURL, userInfo: userInfo)
XCTAssertNotNil(e.failingURL)
XCTAssertEqual(e.failingURL, e.userInfo[NSURLErrorFailingURLErrorKey] as? URL)
}
func test_failingURLString() {
let e = URLError(.badURL, userInfo: userInfo)
XCTAssertNotNil(e.failureURLString)
XCTAssertEqual(e.failureURLString, e.userInfo[NSURLErrorFailingURLStringErrorKey] as? String)
}
}
class TestCocoaError: XCTestCase {
static let testURL = URL(string: "file:///")!
let userInfo: [String: Any] = [
NSURLErrorKey: TestCocoaError.testURL,
NSFilePathErrorKey: TestCocoaError.testURL.path,
NSUnderlyingErrorKey: POSIXError(.EACCES),
NSStringEncodingErrorKey: Int(String.Encoding.utf16.rawValue),
]
func test_errorCode() {
let e = CocoaError(.fileReadNoSuchFile)
XCTAssertEqual(e.errorCode, CocoaError.Code.fileReadNoSuchFile.rawValue)
XCTAssertEqual(e.isCoderError, false)
XCTAssertEqual(e.isExecutableError, false)
XCTAssertEqual(e.isFileError, true)
XCTAssertEqual(e.isFormattingError, false)
XCTAssertEqual(e.isPropertyListError, false)
XCTAssertEqual(e.isUbiquitousFileError, false)
XCTAssertEqual(e.isUserActivityError, false)
XCTAssertEqual(e.isValidationError, false)
XCTAssertEqual(e.isXPCConnectionError, false)
}
func test_filePath() {
let e = CocoaError(.fileWriteNoPermission, userInfo: userInfo)
XCTAssertNotNil(e.filePath)
XCTAssertEqual(e.filePath, TestCocoaError.testURL.path)
}
func test_url() {
// TODO: Re-enable once Foundation.URL is ported from FoundationEssentials
// let e = CocoaError(.fileReadNoSuchFile, userInfo: userInfo)
// XCTAssertNotNil(e.url)
// XCTAssertEqual(e.url, TestCocoaError.testURL)
}
func test_stringEncoding() {
let e = CocoaError(.fileReadUnknownStringEncoding, userInfo: userInfo)
XCTAssertNotNil(e.stringEncoding)
XCTAssertEqual(e.stringEncoding, .utf16)
}
func test_underlying() {
let e = CocoaError(.fileWriteNoPermission, userInfo: userInfo)
XCTAssertNotNil(e.underlying as? POSIXError)
XCTAssertEqual(e.underlying as? POSIXError, POSIXError.init(.EACCES))
}
func test_forceCast() {
let nsError = NSError(domain: NSCocoaErrorDomain, code: CocoaError.coderInvalidValue.rawValue)
let error = nsError as! CocoaError
XCTAssertEqual(error.errorCode, CocoaError.coderInvalidValue.rawValue)
}
}
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