Files
swift-mirror/test/1_stdlib/NSStringAPI.swift
Andrew Trick 0b75ee975e Remove "illegal" UnsafePointer casts from the stdlib.
Update for SE-0107: UnsafeRawPointer

This adds a "mutating" initialize to UnsafePointer to make
Immutable -> Mutable conversions explicit.

These are quick fixes to stdlib, overlays, and test cases that are necessary
in order to remove arbitrary UnsafePointer conversions.

Many cases can be expressed better up by reworking the surrounding
code, but we first need a working starting point.
2016-07-28 20:42:23 -07:00

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// RUN: %target-run-simple-swift
// REQUIRES: executable_test
// REQUIRES: objc_interop
//
// Tests for the NSString APIs as exposed by String
//
import StdlibUnittest
import Foundation
import StdlibUnittestFoundationExtras
// The most simple subclass of NSString that CoreFoundation does not know
// about.
class NonContiguousNSString : NSString {
required init(coder aDecoder: NSCoder) {
fatalError("don't call this initializer")
}
override init() {
_value = []
super.init()
}
init(_ value: [UInt16]) {
_value = value
super.init()
}
@objc(copyWithZone:) override func copy(with zone: NSZone?) -> Any {
// Ensure that copying this string produces a class that CoreFoundation
// does not know about.
return self
}
@objc override var length: Int {
return _value.count
}
@objc override func character(at index: Int) -> unichar {
return _value[index]
}
var _value: [UInt16]
}
let temporaryFileContents =
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,\n" +
"sed do eiusmod tempor incididunt ut labore et dolore magna\n" +
"aliqua.\n"
func createNSStringTemporaryFile()
-> (existingPath: String, nonExistentPath: String) {
let existingPath =
createTemporaryFile("NSStringAPIs.", ".txt", temporaryFileContents)
let nonExistentPath = existingPath + "-NoNeXiStEnT"
return (existingPath, nonExistentPath)
}
var NSStringAPIs = TestSuite("NSStringAPIs")
NSStringAPIs.test("Encodings") {
let availableEncodings: [String.Encoding] = String.availableStringEncodings
expectNotEqual(0, availableEncodings.count)
let defaultCStringEncoding = String.defaultCStringEncoding
expectTrue(availableEncodings.contains(defaultCStringEncoding))
expectNotEqual("", String.localizedName(of: .utf8))
}
NSStringAPIs.test("NSStringEncoding") {
// Make sure NSStringEncoding and its values are type-compatible.
var enc: String.Encoding
enc = .windowsCP1250
enc = .utf32LittleEndian
enc = .utf32BigEndian
enc = .ascii
enc = .utf8
}
NSStringAPIs.test("localizedStringWithFormat(_:...)") {
var world: NSString = "world"
expectEqual("Hello, world!%42", String.localizedStringWithFormat(
"Hello, %@!%%%ld", world, 42))
withOverriddenLocaleCurrentLocale("en_US") {
expectEqual("0.5", String.localizedStringWithFormat("%g", 0.5))
}
withOverriddenLocaleCurrentLocale("uk") {
expectEqual("0,5", String.localizedStringWithFormat("%g", 0.5))
}
}
NSStringAPIs.test("init(contentsOfFile:encoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
do {
let content = try String(
contentsOfFile: existingPath, encoding: .ascii)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
do {
let content = try String(
contentsOfFile: nonExistentPath, encoding: .ascii)
expectUnreachable()
} catch {
}
}
NSStringAPIs.test("init(contentsOfFile:usedEncoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
do {
var usedEncoding: String.Encoding = String.Encoding(rawValue: 0)
let content = try String(
contentsOfFile: existingPath, usedEncoding: &usedEncoding)
expectNotEqual(0, usedEncoding.rawValue)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
var usedEncoding: String.Encoding = String.Encoding(rawValue: 0)
do {
_ = try String(contentsOfFile: nonExistentPath)
expectUnreachable()
} catch {
expectEqual(0, usedEncoding.rawValue)
}
}
NSStringAPIs.test("init(contentsOf:encoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
let existingURL = URL(string: "file://" + existingPath)!
let nonExistentURL = URL(string: "file://" + nonExistentPath)!
do {
let content = try String(
contentsOf: existingURL, encoding: .ascii)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
do {
_ = try String(contentsOf: nonExistentURL, encoding: .ascii)
expectUnreachable()
} catch {
}
}
NSStringAPIs.test("init(contentsOf:usedEncoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
let existingURL = URL(string: "file://" + existingPath)!
let nonExistentURL = URL(string: "file://" + nonExistentPath)!
do {
var usedEncoding: String.Encoding = String.Encoding(rawValue: 0)
let content = try String(
contentsOf: existingURL, usedEncoding: &usedEncoding)
expectNotEqual(0, usedEncoding.rawValue)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
var usedEncoding: String.Encoding = String.Encoding(rawValue: 0)
do {
_ = try String(contentsOf: nonExistentURL, usedEncoding: &usedEncoding)
expectUnreachable()
} catch {
expectEqual(0, usedEncoding.rawValue)
}
}
NSStringAPIs.test("init(cString_:encoding:)") {
expectOptionalEqual("foo, a basmati bar!",
String(cString:
"foo, a basmati bar!", encoding: String.defaultCStringEncoding))
}
NSStringAPIs.test("init(utf8String:)") {
var s = "foo あいう"
var up = UnsafeMutablePointer<UInt8>.allocate(capacity: 100)
var i = 0
for b in s.utf8 {
up[i] = b
i += 1
}
up[i] = 0
let cstr = UnsafeMutableRawPointer(up)
.bindMemory(to: CChar.self, capacity: 100)
expectOptionalEqual(s, String(utf8String: cstr))
up.deallocate(capacity: 100)
}
NSStringAPIs.test("canBeConvertedToEncoding(_:)") {
expectTrue("foo".canBeConverted(to: .ascii))
expectFalse("あいう".canBeConverted(to: .ascii))
}
NSStringAPIs.test("capitalized") {
expectEqual("Foo Foo Foo Foo", "foo Foo fOO FOO".capitalized)
expectEqual("Жжж", "жжж".capitalized)
}
NSStringAPIs.test("localizedCapitalized") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenLocaleCurrentLocale("en") { () -> Void in
expectEqual(
"Foo Foo Foo Foo",
"foo Foo fOO FOO".localizedCapitalized)
expectEqual("Жжж", "жжж".localizedCapitalized)
return ()
}
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
withOverriddenLocaleCurrentLocale("en") {
expectEqual("Iii Iii", "iii III".localizedCapitalized)
}
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
withOverriddenLocaleCurrentLocale("tr") {
expectEqual("\u{0130}ii Iıı", "iii III".localizedCapitalized)
}
}
}
/// Checks that executing the operation in the locale with the given
/// `localeID` (or if `localeID` is `nil`, the current locale) gives
/// the expected result, and that executing the operation with a nil
/// locale gives the same result as explicitly passing the system
/// locale.
///
/// - Parameter expected: the expected result when the operation is
/// executed in the given localeID
func expectLocalizedEquality(
_ expected: String,
_ op: (_: Locale?) -> String,
_ localeID: String? = nil,
_ message: @autoclosure () -> String = "",
showFrame: Bool = true,
stackTrace: SourceLocStack = SourceLocStack(),
file: String = #file, line: UInt = #line
) {
let trace = stackTrace.pushIf(showFrame, file: file, line: line)
let locale = localeID.map {
Locale(identifier: $0)
} ?? Locale.current
expectEqual(
expected, op(locale),
message(), stackTrace: trace)
}
NSStringAPIs.test("capitalizedString(with:)") {
expectLocalizedEquality(
"Foo Foo Foo Foo",
{ loc in "foo Foo fOO FOO".capitalized(with: loc) })
expectLocalizedEquality("Жжж", { loc in "жжж".capitalized(with: loc) })
expectEqual(
"Foo Foo Foo Foo",
"foo Foo fOO FOO".capitalized(with: nil))
expectEqual("Жжж", "жжж".capitalized(with: nil))
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
expectLocalizedEquality(
"Iii Iii",
{ loc in "iii III".capitalized(with: loc) }, "en")
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
expectLocalizedEquality(
"İii Iıı",
{ loc in "iii III".capitalized(with: loc) }, "tr")
}
NSStringAPIs.test("caseInsensitiveCompare(_:)") {
expectEqual(ComparisonResult.orderedSame,
"abCD".caseInsensitiveCompare("AbCd"))
expectEqual(ComparisonResult.orderedAscending,
"abCD".caseInsensitiveCompare("AbCdE"))
expectEqual(ComparisonResult.orderedSame,
"абвг".caseInsensitiveCompare("АбВг"))
expectEqual(ComparisonResult.orderedAscending,
"абВГ".caseInsensitiveCompare("АбВгД"))
}
NSStringAPIs.test("commonPrefix(with:options:)") {
expectEqual("ab",
"abcd".commonPrefix(with: "abdc", options: []))
expectEqual("abC",
"abCd".commonPrefix(with: "abce", options: .caseInsensitive))
expectEqual("аб",
"абвг".commonPrefix(with: "абгв", options: []))
expectEqual("абВ",
"абВг".commonPrefix(with: "абвд", options: .caseInsensitive))
}
NSStringAPIs.test("compare(_:options:range:locale:)") {
expectEqual(ComparisonResult.orderedSame,
"abc".compare("abc"))
expectEqual(ComparisonResult.orderedAscending,
"абв".compare("где"))
expectEqual(ComparisonResult.orderedSame,
"abc".compare("abC", options: .caseInsensitive))
expectEqual(ComparisonResult.orderedSame,
"абв".compare("абВ", options: .caseInsensitive))
do {
let s = "abcd"
let r = s.index(after: s.startIndex)..<s.endIndex
expectEqual(ComparisonResult.orderedSame,
s.compare("bcd", range: r))
}
do {
let s = "абвг"
let r = s.index(after: s.startIndex)..<s.endIndex
expectEqual(ComparisonResult.orderedSame,
s.compare("бвг", range: r))
}
expectEqual(ComparisonResult.orderedSame,
"abc".compare("abc", locale: Locale.current))
expectEqual(ComparisonResult.orderedSame,
"абв".compare("абв", locale: Locale.current))
}
NSStringAPIs.test("completePath(into:caseSensitive:matchesInto:filterTypes)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
do {
var count = nonExistentPath.completePath(caseSensitive: false)
expectEqual(0, count)
}
do {
var outputName = "None Found"
var count = nonExistentPath.completePath(
into: &outputName, caseSensitive: false)
expectEqual(0, count)
expectEqual("None Found", outputName)
}
do {
var outputName = "None Found"
var outputArray: [String] = ["foo", "bar"]
var count = nonExistentPath.completePath(
into: &outputName, caseSensitive: false, matchesInto: &outputArray)
expectEqual(0, count)
expectEqual("None Found", outputName)
expectEqual(["foo", "bar"], outputArray)
}
do {
var count = existingPath.completePath(caseSensitive: false)
expectEqual(1, count)
}
do {
var outputName = "None Found"
var count = existingPath.completePath(
into: &outputName, caseSensitive: false)
expectEqual(1, count)
expectEqual(existingPath, outputName)
}
do {
var outputName = "None Found"
var outputArray: [String] = ["foo", "bar"]
var count = existingPath.completePath(
into: &outputName, caseSensitive: false, matchesInto: &outputArray)
expectEqual(1, count)
expectEqual(existingPath, outputName)
expectEqual([existingPath], outputArray)
}
do {
var outputName = "None Found"
var count = existingPath.completePath(
into: &outputName, caseSensitive: false, filterTypes: ["txt"])
expectEqual(1, count)
expectEqual(existingPath, outputName)
}
}
NSStringAPIs.test("components(separatedBy:) (NSCharacterSet)") {
expectEqual([""], "".components(
separatedBy: CharacterSet.decimalDigits))
expectEqual(
["абв", "", "あいう", "abc"],
"абв12あいう3abc".components(
separatedBy: CharacterSet.decimalDigits))
expectEqual(
["абв", "", "あいう", "abc"],
"абв\u{1F601}\u{1F602}あいう\u{1F603}abc"
.components(
separatedBy: CharacterSet(charactersIn: "\u{1F601}\u{1F602}\u{1F603}")))
// Performs Unicode scalar comparison.
expectEqual(
["abcし\u{3099}def"],
"abcし\u{3099}def".components(
separatedBy: CharacterSet(charactersIn: "\u{3058}")))
}
NSStringAPIs.test("components(separatedBy:) (String)") {
expectEqual([""], "".components(separatedBy: "//"))
expectEqual(
["абв", "あいう", "abc"],
"абв//あいう//abc".components(separatedBy: "//"))
// Performs normalization.
expectEqual(
["abc", "def"],
"abcし\u{3099}def".components(separatedBy: "\u{3058}"))
}
NSStringAPIs.test("cString(usingEncoding:)") {
expectEmpty("абв".cString(using: .ascii))
let expectedBytes: [UInt8] = [ 0xd0, 0xb0, 0xd0, 0xb1, 0xd0, 0xb2, 0 ]
var expectedStr: [CChar] = expectedBytes.map { CChar(bitPattern: $0) }
expectEqual(expectedStr,
"абв".cString(using: .utf8)!)
}
NSStringAPIs.test("data(usingEncoding:allowLossyConversion:)") {
expectEmpty("あいう".data(using: .ascii, allowLossyConversion: false))
do {
let data = "あいう".data(using: .utf8)!
let expectedBytes: [UInt8] = [
0xe3, 0x81, 0x82, 0xe3, 0x81, 0x84, 0xe3, 0x81, 0x86
]
expectEqualSequence(expectedBytes, data)
}
}
NSStringAPIs.test("init(data:encoding:)") {
let bytes: [UInt8] = [0xe3, 0x81, 0x82, 0xe3, 0x81, 0x84, 0xe3, 0x81, 0x86]
let data = Data(bytes: bytes)
expectEmpty(String(data: data, encoding: .nonLossyASCII))
expectEqualSequence(
"あいう".characters,
String(data: data, encoding: .utf8)!.characters)
}
NSStringAPIs.test("decomposedStringWithCanonicalMapping") {
expectEqual("abc", "abc".decomposedStringWithCanonicalMapping)
expectEqual("\u{305f}\u{3099}くてん", "だくてん".decomposedStringWithCanonicalMapping)
expectEqual("\u{ff80}\u{ff9e}クテン", "ダクテン".decomposedStringWithCanonicalMapping)
}
NSStringAPIs.test("decomposedStringWithCompatibilityMapping") {
expectEqual("abc", "abc".decomposedStringWithCompatibilityMapping)
expectEqual("\u{30bf}\u{3099}クテン", "ダクテン".decomposedStringWithCompatibilityMapping)
}
NSStringAPIs.test("enumerateLines(_:)") {
var lines: [String] = []
"abc\n\ndefghi\njklm".enumerateLines {
(line: String, stop: inout Bool)
in
lines.append(line)
if lines.count == 3 {
stop = true
}
}
expectEqual(["abc", "", "defghi"], lines)
}
NSStringAPIs.test("enumerateLinguisticTagsIn(_:scheme:options:orthography:_:") {
let s = "Абв. Глокая куздра штеко будланула бокра и кудрячит бокрёнка. Абв."
let startIndex = s.index(s.startIndex, offsetBy: 5)
let endIndex = s.index(s.startIndex, offsetBy: 62)
var tags: [String] = []
var tokens: [String] = []
var sentences: [String] = []
s.enumerateLinguisticTags(in: startIndex..<endIndex,
scheme: NSLinguisticTagSchemeTokenType,
options: [],
orthography: nil) {
(tag: String, tokenRange: Range<String.Index>, sentenceRange: Range<String.Index>, stop: inout Bool)
in
tags.append(tag)
tokens.append(s[tokenRange])
sentences.append(s[sentenceRange])
if tags.count == 3 {
stop = true
}
}
expectEqual(
[NSLinguisticTagWord, NSLinguisticTagWhitespace, NSLinguisticTagWord],
tags)
expectEqual(["Глокая", " ", "куздра"], tokens)
let sentence = s[startIndex..<endIndex]
expectEqual([sentence, sentence, sentence], sentences)
}
NSStringAPIs.test("enumerateSubstringsIn(_:options:_:)") {
let s = "\u{304b}\u{3099}お\u{263a}\u{fe0f}😀😊"
let startIndex = s.index(s.startIndex, offsetBy: 1)
let endIndex = s.index(s.startIndex, offsetBy: 5)
do {
var substrings: [String] = []
s.enumerateSubstrings(in: startIndex..<endIndex,
options: String.EnumerationOptions.byComposedCharacterSequences) {
(substring: String?, substringRange: Range<String.Index>,
enclosingRange: Range<String.Index>, stop: inout Bool)
in
substrings.append(substring!)
expectEqual(substring, s[substringRange])
expectEqual(substring, s[enclosingRange])
}
expectEqual(["\u{304b}\u{3099}", "", "☺️", "😀"], substrings)
}
do {
var substrings: [String] = []
s.enumerateSubstrings(in: startIndex..<endIndex,
options: [.byComposedCharacterSequences, .substringNotRequired]) {
(substring_: String?, substringRange: Range<String.Index>,
enclosingRange: Range<String.Index>, stop: inout Bool)
in
expectEmpty(substring_)
let substring = s[substringRange]
substrings.append(substring)
expectEqual(substring, s[enclosingRange])
}
expectEqual(["\u{304b}\u{3099}", "", "☺️", "😀"], substrings)
}
}
NSStringAPIs.test("fastestEncoding") {
let availableEncodings: [String.Encoding] = String.availableStringEncodings
expectTrue(availableEncodings.contains("abc".fastestEncoding))
}
NSStringAPIs.test("getBytes(_:maxLength:usedLength:encoding:options:range:remaining:)") {
let s = "abc абв def где gh жз zzz"
let startIndex = s.index(s.startIndex, offsetBy: 8)
let endIndex = s.index(s.startIndex, offsetBy: 22)
do {
// 'maxLength' is limiting.
let bufferLength = 100
var expectedStr: [UInt8] = Array("def где ".utf8)
while (expectedStr.count != bufferLength) {
expectedStr.append(0xff)
}
var buffer = [UInt8](repeating: 0xff, count: bufferLength)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: 11, usedLength: &usedLength,
encoding: .utf8,
options: [],
range: startIndex..<endIndex, remaining: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(11, usedLength)
expectEqual(remainingRange.lowerBound, s.index(startIndex, offsetBy: 8))
expectEqual(remainingRange.upperBound, endIndex)
}
do {
// 'bufferLength' is limiting. Note that the buffer is not filled
// completely, since doing that would break a UTF sequence.
let bufferLength = 5
var expectedStr: [UInt8] = Array("def ".utf8)
while (expectedStr.count != bufferLength) {
expectedStr.append(0xff)
}
var buffer = [UInt8](repeating: 0xff, count: bufferLength)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: 11, usedLength: &usedLength,
encoding: .utf8,
options: [],
range: startIndex..<endIndex, remaining: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(4, usedLength)
expectEqual(remainingRange.lowerBound, s.index(startIndex, offsetBy: 4))
expectEqual(remainingRange.upperBound, endIndex)
}
do {
// 'range' is converted completely.
let bufferLength = 100
var expectedStr: [UInt8] = Array("def где gh жз ".utf8)
while (expectedStr.count != bufferLength) {
expectedStr.append(0xff)
}
var buffer = [UInt8](repeating: 0xff, count: bufferLength)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: bufferLength,
usedLength: &usedLength, encoding: .utf8,
options: [],
range: startIndex..<endIndex, remaining: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(19, usedLength)
expectEqual(remainingRange.lowerBound, endIndex)
expectEqual(remainingRange.upperBound, endIndex)
}
do {
// Inappropriate encoding.
let bufferLength = 100
var expectedStr: [UInt8] = Array("def ".utf8)
while (expectedStr.count != bufferLength) {
expectedStr.append(0xff)
}
var buffer = [UInt8](repeating: 0xff, count: bufferLength)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: bufferLength,
usedLength: &usedLength, encoding: .ascii,
options: [],
range: startIndex..<endIndex, remaining: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(4, usedLength)
expectEqual(remainingRange.lowerBound, s.index(startIndex, offsetBy: 4))
expectEqual(remainingRange.upperBound, endIndex)
}
}
NSStringAPIs.test("getCString(_:maxLength:encoding:)") {
var s = "abc あかさた"
do {
// The largest buffer that cannot accommodate the string plus null terminator.
let bufferLength = 16
var buffer = Array(
repeating: CChar(bitPattern: 0xff), count: bufferLength)
let result = s.getCString(&buffer, maxLength: 100,
encoding: .utf8)
expectFalse(result)
}
do {
// The smallest buffer where the result can fit.
let bufferLength = 17
var expectedStr = "abc あかさた\0".utf8.map { CChar(bitPattern: $0) }
while (expectedStr.count != bufferLength) {
expectedStr.append(CChar(bitPattern: 0xff))
}
var buffer = Array(
repeating: CChar(bitPattern: 0xff), count: bufferLength)
let result = s.getCString(&buffer, maxLength: 100,
encoding: .utf8)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
}
do {
// Limit buffer size with 'maxLength'.
let bufferLength = 100
var buffer = Array(
repeating: CChar(bitPattern: 0xff), count: bufferLength)
let result = s.getCString(&buffer, maxLength: 8,
encoding: .utf8)
expectFalse(result)
}
do {
// String with unpaired surrogates.
let illFormedUTF16 = NonContiguousNSString([ 0xd800 ]) as String
let bufferLength = 100
var buffer = Array(
repeating: CChar(bitPattern: 0xff), count: bufferLength)
let result = illFormedUTF16.getCString(&buffer, maxLength: 100,
encoding: .utf8)
expectFalse(result)
}
}
NSStringAPIs.test("getLineStart(_:end:contentsEnd:forRange:)") {
let s = "Глокая куздра\nштеко будланула\nбокра и кудрячит\nбокрёнка."
let r = s.index(s.startIndex, offsetBy: 16)..<s.index(s.startIndex, offsetBy: 35)
do {
var outStartIndex = s.startIndex
var outLineEndIndex = s.startIndex
var outContentsEndIndex = s.startIndex
s.getLineStart(&outStartIndex, end: &outLineEndIndex,
contentsEnd: &outContentsEndIndex, for: r)
expectEqual("штеко будланула\nбокра и кудрячит\n",
s[outStartIndex..<outLineEndIndex])
expectEqual("штеко будланула\nбокра и кудрячит",
s[outStartIndex..<outContentsEndIndex])
}
}
NSStringAPIs.test("getParagraphStart(_:end:contentsEnd:forRange:)") {
let s = "Глокая куздра\nштеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n Абв."
let r = s.index(s.startIndex, offsetBy: 16)..<s.index(s.startIndex, offsetBy: 35)
do {
var outStartIndex = s.startIndex
var outEndIndex = s.startIndex
var outContentsEndIndex = s.startIndex
s.getParagraphStart(&outStartIndex, end: &outEndIndex,
contentsEnd: &outContentsEndIndex, for: r)
expectEqual("штеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n",
s[outStartIndex..<outEndIndex])
expectEqual("штеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.",
s[outStartIndex..<outContentsEndIndex])
}
}
NSStringAPIs.test("hash") {
var s: String = "abc"
var nsstr: NSString = "abc"
expectEqual(nsstr.hash, s.hash)
}
NSStringAPIs.test("init(bytes:encoding:)") {
var s: String = "abc あかさた"
expectOptionalEqual(
s, String(bytes: s.utf8, encoding: .utf8))
/*
FIXME: Test disabled because the NSString documentation is unclear about
what should actually happen in this case.
expectEmpty(String(bytes: bytes, length: bytes.count,
encoding: .ascii))
*/
// FIXME: add a test where this function actually returns nil.
}
NSStringAPIs.test("init(bytesNoCopy:length:encoding:freeWhenDone:)") {
var s: String = "abc あかさた"
var bytes: [UInt8] = Array(s.utf8)
expectOptionalEqual(s, String(bytesNoCopy: &bytes,
length: bytes.count, encoding: .utf8,
freeWhenDone: false))
/*
FIXME: Test disabled because the NSString documentation is unclear about
what should actually happen in this case.
expectEmpty(String(bytesNoCopy: &bytes, length: bytes.count,
encoding: .ascii, freeWhenDone: false))
*/
// FIXME: add a test where this function actually returns nil.
}
NSStringAPIs.test("init(utf16CodeUnits:count:)") {
let expected = "abc абв \u{0001F60A}"
let chars: [unichar] = Array(expected.utf16)
expectEqual(expected, String(utf16CodeUnits: chars, count: chars.count))
}
NSStringAPIs.test("init(utf16CodeUnitsNoCopy:count:freeWhenDone:)") {
let expected = "abc абв \u{0001F60A}"
let chars: [unichar] = Array(expected.utf16)
expectEqual(expected, String(utf16CodeUnitsNoCopy: chars,
count: chars.count, freeWhenDone: false))
}
NSStringAPIs.test("init(format:_:...)") {
expectEqual("", String(format: ""))
expectEqual(
"abc абв \u{0001F60A}", String(format: "abc абв \u{0001F60A}"))
let world: NSString = "world"
expectEqual("Hello, world!%42",
String(format: "Hello, %@!%%%ld", world, 42))
// test for rdar://problem/18317906
expectEqual("3.12", String(format: "%.2f", 3.123456789))
expectEqual("3.12", NSString(format: "%.2f", 3.123456789))
}
NSStringAPIs.test("init(format:arguments:)") {
expectEqual("", String(format: "", arguments: []))
expectEqual(
"abc абв \u{0001F60A}",
String(format: "abc абв \u{0001F60A}", arguments: []))
let world: NSString = "world"
let args: [CVarArg] = [ world, 42 ]
expectEqual("Hello, world!%42",
String(format: "Hello, %@!%%%ld", arguments: args))
}
NSStringAPIs.test("init(format:locale:_:...)") {
var world: NSString = "world"
expectEqual("Hello, world!%42", String(format: "Hello, %@!%%%ld",
locale: nil, world, 42))
}
NSStringAPIs.test("init(format:locale:arguments:)") {
let world: NSString = "world"
let args: [CVarArg] = [ world, 42 ]
expectEqual("Hello, world!%42", String(format: "Hello, %@!%%%ld",
locale: nil, arguments: args))
}
NSStringAPIs.test("lastPathComponent") {
expectEqual("bar", "/foo/bar".lastPathComponent)
expectEqual("абв", "/foo/абв".lastPathComponent)
}
NSStringAPIs.test("utf16Count") {
expectEqual(1, "a".utf16.count)
expectEqual(2, "\u{0001F60A}".utf16.count)
}
NSStringAPIs.test("lengthOfBytesUsingEncoding(_:)") {
expectEqual(1, "a".lengthOfBytes(using: .utf8))
expectEqual(2, "".lengthOfBytes(using: .shiftJIS))
}
NSStringAPIs.test("lineRangeFor(_:)") {
let s = "Глокая куздра\nштеко будланула\nбокра и кудрячит\nбокрёнка."
let r = s.index(s.startIndex, offsetBy: 16)..<s.index(s.startIndex, offsetBy: 35)
do {
let result = s.lineRange(for: r)
expectEqual("штеко будланула\nбокра и кудрячит\n", s[result])
}
}
NSStringAPIs.test("linguisticTagsIn(_:scheme:options:orthography:tokenRanges:)") {
let s = "Абв. Глокая куздра штеко будланула бокра и кудрячит бокрёнка. Абв."
let startIndex = s.index(s.startIndex, offsetBy: 5)
let endIndex = s.index(s.startIndex, offsetBy: 17)
var tokenRanges: [Range<String.Index>] = []
var tags = s.linguisticTags(in: startIndex..<endIndex,
scheme: NSLinguisticTagSchemeTokenType,
options: [],
orthography: nil, tokenRanges: &tokenRanges)
expectEqual(
[NSLinguisticTagWord, NSLinguisticTagWhitespace, NSLinguisticTagWord],
tags)
expectEqual(["Глокая", " ", "куздра"],
tokenRanges.map { s[$0] } )
}
NSStringAPIs.test("localizedCaseInsensitiveCompare(_:)") {
expectEqual(ComparisonResult.orderedSame,
"abCD".localizedCaseInsensitiveCompare("AbCd"))
expectEqual(ComparisonResult.orderedAscending,
"abCD".localizedCaseInsensitiveCompare("AbCdE"))
expectEqual(ComparisonResult.orderedSame,
"абвг".localizedCaseInsensitiveCompare("АбВг"))
expectEqual(ComparisonResult.orderedAscending,
"абВГ".localizedCaseInsensitiveCompare("АбВгД"))
}
NSStringAPIs.test("localizedCompare(_:)") {
expectEqual(ComparisonResult.orderedAscending,
"abCD".localizedCompare("AbCd"))
expectEqual(ComparisonResult.orderedAscending,
"абвг".localizedCompare("АбВг"))
}
NSStringAPIs.test("localizedStandardCompare(_:)") {
expectEqual(ComparisonResult.orderedAscending,
"abCD".localizedStandardCompare("AbCd"))
expectEqual(ComparisonResult.orderedAscending,
"абвг".localizedStandardCompare("АбВг"))
}
NSStringAPIs.test("localizedLowercase") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenLocaleCurrentLocale("en") {
expectEqual("abcd", "abCD".localizedLowercase)
}
withOverriddenLocaleCurrentLocale("en") {
expectEqual("абвг", "абВГ".localizedLowercase)
}
withOverriddenLocaleCurrentLocale("ru") {
expectEqual("абвг", "абВГ".localizedLowercase)
}
withOverriddenLocaleCurrentLocale("ru") {
expectEqual("たちつてと", "たちつてと".localizedLowercase)
}
//
// Special casing.
//
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case:
// U+0069 LATIN SMALL LETTER I
// U+0307 COMBINING DOT ABOVE
withOverriddenLocaleCurrentLocale("en") {
expectEqual("\u{0069}\u{0307}", "\u{0130}".localizedLowercase)
}
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
withOverriddenLocaleCurrentLocale("tr") {
expectEqual("\u{0069}", "\u{0130}".localizedLowercase)
}
// U+0049 LATIN CAPITAL LETTER I
// U+0307 COMBINING DOT ABOVE
// to lower case:
// U+0069 LATIN SMALL LETTER I
// U+0307 COMBINING DOT ABOVE
withOverriddenLocaleCurrentLocale("en") {
expectEqual(
"\u{0069}\u{0307}",
"\u{0049}\u{0307}".localizedLowercase)
}
// U+0049 LATIN CAPITAL LETTER I
// U+0307 COMBINING DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
withOverriddenLocaleCurrentLocale("tr") {
expectEqual("\u{0069}", "\u{0049}\u{0307}".localizedLowercase)
}
}
}
NSStringAPIs.test("lowercased(with:)") {
expectLocalizedEquality("abcd", { loc in "abCD".lowercased(with: loc) }, "en")
expectLocalizedEquality("абвг", { loc in "абВГ".lowercased(with: loc) }, "en")
expectLocalizedEquality("абвг", { loc in "абВГ".lowercased(with: loc) }, "ru")
expectLocalizedEquality("たちつてと", { loc in "たちつてと".lowercased(with: loc) }, "ru")
//
// Special casing.
//
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case:
// U+0069 LATIN SMALL LETTER I
// U+0307 COMBINING DOT ABOVE
expectLocalizedEquality("\u{0069}\u{0307}", { loc in "\u{0130}".lowercased(with: loc) }, "en")
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
expectLocalizedEquality("\u{0069}", { loc in "\u{0130}".lowercased(with: loc) }, "tr")
// U+0049 LATIN CAPITAL LETTER I
// U+0307 COMBINING DOT ABOVE
// to lower case:
// U+0069 LATIN SMALL LETTER I
// U+0307 COMBINING DOT ABOVE
expectLocalizedEquality("\u{0069}\u{0307}", { loc in "\u{0049}\u{0307}".lowercased(with: loc) }, "en")
// U+0049 LATIN CAPITAL LETTER I
// U+0307 COMBINING DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
expectLocalizedEquality("\u{0069}", { loc in "\u{0049}\u{0307}".lowercased(with: loc) }, "tr")
}
NSStringAPIs.test("maximumLengthOfBytesUsingEncoding(_:)") {
do {
let s = "abc"
expectLE(s.utf8.count,
s.maximumLengthOfBytes(using: .utf8))
}
do {
let s = "abc абв"
expectLE(s.utf8.count,
s.maximumLengthOfBytes(using: .utf8))
}
do {
let s = "\u{1F60A}"
expectLE(s.utf8.count,
s.maximumLengthOfBytes(using: .utf8))
}
}
NSStringAPIs.test("paragraphRangeFor(_:)") {
let s = "Глокая куздра\nштеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n Абв."
let r = s.index(s.startIndex, offsetBy: 16)..<s.index(s.startIndex, offsetBy: 35)
do {
let result = s.paragraphRange(for: r)
expectEqual("штеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n", s[result])
}
}
NSStringAPIs.test("pathComponents") {
expectEqual([ "/", "foo", "bar" ] as [NSString], ("/foo/bar" as NSString).pathComponents as [NSString])
expectEqual([ "/", "абв", "где" ] as [NSString], ("/абв/где" as NSString).pathComponents as [NSString])
}
NSStringAPIs.test("pathExtension") {
expectEqual("", "/foo/bar".pathExtension)
expectEqual("txt", "/foo/bar.txt".pathExtension)
}
NSStringAPIs.test("precomposedStringWithCanonicalMapping") {
expectEqual("abc", "abc".precomposedStringWithCanonicalMapping)
expectEqual("だくてん",
"\u{305f}\u{3099}くてん".precomposedStringWithCanonicalMapping)
expectEqual("ダクテン",
"\u{ff80}\u{ff9e}クテン".precomposedStringWithCanonicalMapping)
expectEqual("\u{fb03}", "\u{fb03}".precomposedStringWithCanonicalMapping)
}
NSStringAPIs.test("precomposedStringWithCompatibilityMapping") {
expectEqual("abc", "abc".precomposedStringWithCompatibilityMapping)
/*
Test disabled because of:
<rdar://problem/17041347> NFKD normalization as implemented by
'precomposedStringWithCompatibilityMapping:' is not idempotent
expectEqual("\u{30c0}",
"\u{ff80}\u{ff9e}".precomposedStringWithCompatibilityMapping)
*/
expectEqual("ffi", "\u{fb03}".precomposedStringWithCompatibilityMapping)
}
NSStringAPIs.test("propertyList()") {
expectEqual(["foo", "bar"],
"(\"foo\", \"bar\")".propertyList() as! [String])
}
NSStringAPIs.test("propertyListFromStringsFileFormat()") {
expectEqual(["foo": "bar", "baz": "baz"],
"/* comment */\n\"foo\" = \"bar\";\n\"baz\";"
.propertyListFromStringsFileFormat() as Dictionary<String, String>)
}
NSStringAPIs.test("rangeOfCharacterFrom(_:options:range:)") {
do {
let charset = CharacterSet(charactersIn: "абв")
do {
let s = "Глокая куздра"
let r = s.rangeOfCharacter(from: charset)!
expectEqual(s.index(s.startIndex, offsetBy: 4), r.lowerBound)
expectEqual(s.index(s.startIndex, offsetBy: 5), r.upperBound)
}
do {
expectEmpty("клмн".rangeOfCharacter(from: charset))
}
do {
let s = "абвклмнабвклмн"
let r = s.rangeOfCharacter(from: charset,
options: .backwards)!
expectEqual(s.index(s.startIndex, offsetBy: 9), r.lowerBound)
expectEqual(s.index(s.startIndex, offsetBy: 10), r.upperBound)
}
do {
let s = "абвклмнабв"
let r = s.rangeOfCharacter(from: charset,
range: s.index(s.startIndex, offsetBy: 3)..<s.endIndex)!
expectEqual(s.index(s.startIndex, offsetBy: 7), r.lowerBound)
expectEqual(s.index(s.startIndex, offsetBy: 8), r.upperBound)
}
}
do {
let charset = CharacterSet(charactersIn: "\u{305f}\u{3099}")
expectEmpty("\u{3060}".rangeOfCharacter(from: charset))
}
do {
let charset = CharacterSet(charactersIn: "\u{3060}")
expectEmpty("\u{305f}\u{3099}".rangeOfCharacter(from: charset))
}
do {
let charset = CharacterSet(charactersIn: "\u{1F600}")
do {
let s = "abc\u{1F600}"
expectEqual("\u{1F600}",
s[s.rangeOfCharacter(from: charset)!])
}
do {
expectEmpty("abc\u{1F601}".rangeOfCharacter(from: charset))
}
}
}
NSStringAPIs.test("rangeOfComposedCharacterSequence(at:)") {
let s = "\u{1F601}abc \u{305f}\u{3099} def"
expectEqual("\u{1F601}", s[s.rangeOfComposedCharacterSequence(
at: s.startIndex)])
expectEqual("a", s[s.rangeOfComposedCharacterSequence(
at: s.index(s.startIndex, offsetBy: 1))])
expectEqual("\u{305f}\u{3099}", s[s.rangeOfComposedCharacterSequence(
at: s.index(s.startIndex, offsetBy: 5))])
expectEqual(" ", s[s.rangeOfComposedCharacterSequence(
at: s.index(s.startIndex, offsetBy: 6))])
}
NSStringAPIs.test("rangeOfComposedCharacterSequences(for:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual("\u{1F601}a", s[s.rangeOfComposedCharacterSequences(
for: s.startIndex..<s.index(s.startIndex, offsetBy: 2))])
expectEqual("\u{3099}そ\u{3099}", s[s.rangeOfComposedCharacterSequences(
for: s.index(s.startIndex, offsetBy: 8)..<s.index(s.startIndex, offsetBy: 10))])
}
func toIntRange(
_ string: String, _ maybeRange: Range<String.Index>?
) -> Range<Int>? {
guard let range = maybeRange else { return nil }
return
string.distance(from: string.startIndex, to: range.lowerBound) ..<
string.distance(from: string.startIndex, to: range.upperBound)
}
NSStringAPIs.test("range(of:options:range:locale:)") {
do {
let s = ""
expectEmpty(s.range(of: ""))
expectEmpty(s.range(of: "abc"))
}
do {
let s = "abc"
expectEmpty(s.range(of: ""))
expectEmpty(s.range(of: "def"))
expectOptionalEqual(0..<3, toIntRange(s, s.range(of: "abc")))
}
do {
let s = "\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectOptionalEqual(2..<3, toIntRange(s, s.range(of: "\u{3099}")))
expectOptionalEqual(2..<3, toIntRange(s, s.range(of: "\u{305a}")))
expectEmpty(s.range(of: "\u{3099}す"))
expectEmpty(s.range(of: ""))
// Note: here `rangeOf` API produces indexes that don't point between
// grapheme cluster boundaries -- these cannot be created with public
// String interface.
//
// FIXME: why does this search succeed and the above queries fail? There is
// no apparent pattern.
expectEqual("\u{3099}", s[s.range(of: "\u{3099}")!])
}
do {
let s = "а\u{0301}б\u{0301}в\u{0301}г\u{0301}"
expectOptionalEqual(0..<1, toIntRange(s, s.range(of: "а\u{0301}")))
expectOptionalEqual(1..<2, toIntRange(s, s.range(of: "б\u{0301}")))
expectEmpty(s.range(of: "б"))
expectEmpty(s.range(of: "\u{0301}б"))
// FIXME: Again, indexes that don't correspond to grapheme
// cluster boundaries.
expectEqual("\u{0301}", s[s.range(of: "\u{0301}")!])
}
}
NSStringAPIs.test("contains(_:)") {
withOverriddenLocaleCurrentLocale("en") { () -> Void in
expectFalse("".contains(""))
expectFalse("".contains("a"))
expectFalse("a".contains(""))
expectFalse("a".contains("b"))
expectTrue("a".contains("a"))
expectFalse("a".contains("A"))
expectFalse("A".contains("a"))
expectFalse("a".contains("a\u{0301}"))
expectTrue("a\u{0301}".contains("a\u{0301}"))
expectFalse("a\u{0301}".contains("a"))
expectTrue("a\u{0301}".contains("\u{0301}"))
expectFalse("a".contains("\u{0301}"))
expectFalse("i".contains("I"))
expectFalse("I".contains("i"))
expectFalse("\u{0130}".contains("i"))
expectFalse("i".contains("\u{0130}"))
return ()
}
withOverriddenLocaleCurrentLocale("tr") {
expectFalse("\u{0130}".contains("ı"))
}
}
NSStringAPIs.test("localizedCaseInsensitiveContains(_:)") {
withOverriddenLocaleCurrentLocale("en") { () -> Void in
expectFalse("".localizedCaseInsensitiveContains(""))
expectFalse("".localizedCaseInsensitiveContains("a"))
expectFalse("a".localizedCaseInsensitiveContains(""))
expectFalse("a".localizedCaseInsensitiveContains("b"))
expectTrue("a".localizedCaseInsensitiveContains("a"))
expectTrue("a".localizedCaseInsensitiveContains("A"))
expectTrue("A".localizedCaseInsensitiveContains("a"))
expectFalse("a".localizedCaseInsensitiveContains("a\u{0301}"))
expectTrue("a\u{0301}".localizedCaseInsensitiveContains("a\u{0301}"))
expectFalse("a\u{0301}".localizedCaseInsensitiveContains("a"))
expectTrue("a\u{0301}".localizedCaseInsensitiveContains("\u{0301}"))
expectFalse("a".localizedCaseInsensitiveContains("\u{0301}"))
expectTrue("i".localizedCaseInsensitiveContains("I"))
expectTrue("I".localizedCaseInsensitiveContains("i"))
expectFalse("\u{0130}".localizedCaseInsensitiveContains("i"))
expectFalse("i".localizedCaseInsensitiveContains("\u{0130}"))
return ()
}
withOverriddenLocaleCurrentLocale("tr") {
expectFalse("\u{0130}".localizedCaseInsensitiveContains("ı"))
}
}
NSStringAPIs.test("localizedStandardContains(_:)") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenLocaleCurrentLocale("en") { () -> Void in
expectFalse("".localizedStandardContains(""))
expectFalse("".localizedStandardContains("a"))
expectFalse("a".localizedStandardContains(""))
expectFalse("a".localizedStandardContains("b"))
expectTrue("a".localizedStandardContains("a"))
expectTrue("a".localizedStandardContains("A"))
expectTrue("A".localizedStandardContains("a"))
expectTrue("a".localizedStandardContains("a\u{0301}"))
expectTrue("a\u{0301}".localizedStandardContains("a\u{0301}"))
expectTrue("a\u{0301}".localizedStandardContains("a"))
expectTrue("a\u{0301}".localizedStandardContains("\u{0301}"))
expectFalse("a".localizedStandardContains("\u{0301}"))
expectTrue("i".localizedStandardContains("I"))
expectTrue("I".localizedStandardContains("i"))
expectTrue("\u{0130}".localizedStandardContains("i"))
expectTrue("i".localizedStandardContains("\u{0130}"))
return ()
}
withOverriddenLocaleCurrentLocale("tr") {
expectTrue("\u{0130}".localizedStandardContains("ı"))
}
}
}
NSStringAPIs.test("localizedStandardRange(of:)") {
if #available(OSX 10.11, iOS 9.0, *) {
func rangeOf(_ string: String, _ substring: String) -> Range<Int>? {
return toIntRange(
string, string.localizedStandardRange(of: substring))
}
withOverriddenLocaleCurrentLocale("en") { () -> Void in
expectEmpty(rangeOf("", ""))
expectEmpty(rangeOf("", "a"))
expectEmpty(rangeOf("a", ""))
expectEmpty(rangeOf("a", "b"))
expectEqual(0..<1, rangeOf("a", "a"))
expectEqual(0..<1, rangeOf("a", "A"))
expectEqual(0..<1, rangeOf("A", "a"))
expectEqual(0..<1, rangeOf("a", "a\u{0301}"))
expectEqual(0..<1, rangeOf("a\u{0301}", "a\u{0301}"))
expectEqual(0..<1, rangeOf("a\u{0301}", "a"))
do {
// FIXME: Indices that don't correspond to grapheme cluster boundaries.
let s = "a\u{0301}"
expectEqual(
"\u{0301}", s[s.localizedStandardRange(of: "\u{0301}")!])
}
expectEmpty(rangeOf("a", "\u{0301}"))
expectEqual(0..<1, rangeOf("i", "I"))
expectEqual(0..<1, rangeOf("I", "i"))
expectEqual(0..<1, rangeOf("\u{0130}", "i"))
expectEqual(0..<1, rangeOf("i", "\u{0130}"))
return ()
}
withOverriddenLocaleCurrentLocale("tr") {
expectEqual(0..<1, rangeOf("\u{0130}", "ı"))
}
}
}
NSStringAPIs.test("smallestEncoding") {
let availableEncodings: [String.Encoding] = String.availableStringEncodings
expectTrue(availableEncodings.contains("abc".smallestEncoding))
}
func getHomeDir() -> String {
#if os(OSX)
return String(cString: getpwuid(getuid()).pointee.pw_dir)
#elseif os(iOS) || os(tvOS) || os(watchOS)
// getpwuid() returns null in sandboxed apps under iOS simulator.
return NSHomeDirectory()
#else
preconditionFailed("implement")
#endif
}
NSStringAPIs.test("addingPercentEscapes(using:)") {
expectEmpty(
"abcd абвг".addingPercentEscapes(
using: .ascii))
expectOptionalEqual("abcd%20%D0%B0%D0%B1%D0%B2%D0%B3",
"abcd абвг".addingPercentEscapes(
using: .utf8))
}
NSStringAPIs.test("appendingFormat(_:_:...)") {
expectEqual("", "".appendingFormat(""))
expectEqual("a", "a".appendingFormat(""))
expectEqual(
"abc абв \u{0001F60A}",
"abc абв \u{0001F60A}".appendingFormat(""))
let formatArg: NSString = "привет мир \u{0001F60A}"
expectEqual(
"abc абв \u{0001F60A}def привет мир \u{0001F60A} 42",
"abc абв \u{0001F60A}"
.appendingFormat("def %@ %ld", formatArg, 42))
}
NSStringAPIs.test("appendingPathComponent(_:)") {
expectEqual("", "".appendingPathComponent(""))
expectEqual("a.txt", "".appendingPathComponent("a.txt"))
expectEqual("/tmp/a.txt", "/tmp".appendingPathComponent("a.txt"))
}
NSStringAPIs.test("appending(_:)") {
expectEqual("", "".appending(""))
expectEqual("a", "a".appending(""))
expectEqual("a", "".appending("a"))
expectEqual("\u{3099}", "".appending("\u{3099}"))
}
NSStringAPIs.test("deletingLastPathComponent") {
expectEqual("", "".deletingLastPathComponent)
expectEqual("/", "/".deletingLastPathComponent)
expectEqual("/", "/tmp".deletingLastPathComponent)
expectEqual("/tmp", "/tmp/a.txt".deletingLastPathComponent)
}
NSStringAPIs.test("folding(options:locale:)") {
func fwo(
_ s: String, _ options: String.CompareOptions
) -> (Locale?) -> String {
return { loc in s.folding(options: options, locale: loc) }
}
expectLocalizedEquality("abcd", fwo("abCD", .caseInsensitive), "en")
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case:
// U+0069 LATIN SMALL LETTER I
// U+0307 COMBINING DOT ABOVE
expectLocalizedEquality(
"\u{0069}\u{0307}", fwo("\u{0130}", .caseInsensitive), "en")
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
expectLocalizedEquality(
"\u{0069}", fwo("\u{0130}", .caseInsensitive), "tr")
expectLocalizedEquality(
"example123", fwo("", .widthInsensitive), "en")
}
NSStringAPIs.test("padding(toLength:withPad:startingAtIndex:)") {
expectEqual(
"abc абв \u{0001F60A}",
"abc абв \u{0001F60A}".padding(
toLength: 10, withPad: "XYZ", startingAt: 0))
expectEqual(
"abc абв \u{0001F60A}XYZXY",
"abc абв \u{0001F60A}".padding(
toLength: 15, withPad: "XYZ", startingAt: 0))
expectEqual(
"abc абв \u{0001F60A}YZXYZ",
"abc абв \u{0001F60A}".padding(
toLength: 15, withPad: "XYZ", startingAt: 1))
}
NSStringAPIs.test("removingPercentEncoding/OSX 10.9")
.xfail(.osxMinor(10, 9, reason: "looks like a bug in Foundation in OS X 10.9"))
.xfail(.iOSMajor(7, reason: "same bug in Foundation in iOS 7.*"))
.skip(.iOSSimulatorAny("same bug in Foundation in iOS Simulator 7.*"))
.code {
expectOptionalEqual("", "".removingPercentEncoding)
}
NSStringAPIs.test("removingPercentEncoding") {
expectEmpty("%".removingPercentEncoding)
expectOptionalEqual(
"abcd абвг",
"ab%63d %D0%B0%D0%B1%D0%B2%D0%B3".removingPercentEncoding)
}
NSStringAPIs.test("replacingCharacters(in:with:)") {
do {
let empty = ""
expectEqual("", empty.replacingCharacters(
in: empty.startIndex..<empty.startIndex, with: ""))
}
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.replacingCharacters(
in: s.startIndex..<s.startIndex, with: ""))
expectEqual(s, s.replacingCharacters(
in: s.endIndex..<s.endIndex, with: ""))
expectEqual("zzz" + s, s.replacingCharacters(
in: s.startIndex..<s.startIndex, with: "zzz"))
expectEqual(s + "zzz", s.replacingCharacters(
in: s.endIndex..<s.endIndex, with: "zzz"))
expectEqual(
"\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.startIndex..<s.index(s.startIndex, offsetBy: 7), with: ""))
expectEqual(
"zzzす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.startIndex..<s.index(s.startIndex, offsetBy: 7), with: "zzz"))
expectEqual(
"\u{1F602}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.startIndex..<s.index(s.startIndex, offsetBy: 7), with: "\u{1F602}"))
expectEqual("\u{1F601}", s.replacingCharacters(
in: s.index(after: s.startIndex)..<s.endIndex, with: ""))
expectEqual("\u{1F601}zzz", s.replacingCharacters(
in: s.index(after: s.startIndex)..<s.endIndex, with: "zzz"))
expectEqual("\u{1F601}\u{1F602}", s.replacingCharacters(
in: s.index(after: s.startIndex)..<s.endIndex, with: "\u{1F602}"))
expectEqual(
"\u{1F601}aす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.index(s.startIndex, offsetBy: 2)..<s.index(s.startIndex, offsetBy: 7), with: ""))
expectEqual(
"\u{1F601}azzzす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.index(s.startIndex, offsetBy: 2)..<s.index(s.startIndex, offsetBy: 7), with: "zzz"))
expectEqual(
"\u{1F601}a\u{1F602}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingCharacters(
in: s.index(s.startIndex, offsetBy: 2)..<s.index(s.startIndex, offsetBy: 7),
with: "\u{1F602}"))
}
NSStringAPIs.test("replacingOccurrences(of:with:options:range:)") {
do {
let empty = ""
expectEqual("", empty.replacingOccurrences(
of: "", with: ""))
expectEqual("", empty.replacingOccurrences(
of: "", with: "xyz"))
expectEqual("", empty.replacingOccurrences(
of: "abc", with: "xyz"))
}
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.replacingOccurrences(of: "", with: "xyz"))
expectEqual(s, s.replacingOccurrences(of: "xyz", with: ""))
expectEqual("", s.replacingOccurrences(of: s, with: ""))
expectEqual(
"\u{1F601}xyzbc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(of: "a", with: "xyz"))
expectEqual(
"\u{1F602}\u{1F603}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{1F601}", with: "\u{1F602}\u{1F603}"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{3099}", with: "xyz"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{3099}", with: "xyz"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{3058}", with: "xyz"))
//
// Use non-default 'options:'
//
expectEqual(
"\u{1F602}\u{1F603}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{1F601}", with: "\u{1F602}\u{1F603}",
options: String.CompareOptions.literal))
expectEqual(s, s.replacingOccurrences(
of: "\u{3058}", with: "xyz",
options: String.CompareOptions.literal))
//
// Use non-default 'range:'
//
expectEqual(
"\u{1F602}\u{1F603}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.replacingOccurrences(
of: "\u{1F601}", with: "\u{1F602}\u{1F603}",
options: String.CompareOptions.literal,
range: s.startIndex..<s.index(s.startIndex, offsetBy: 1)))
expectEqual(s, s.replacingOccurrences(
of: "\u{1F601}", with: "\u{1F602}\u{1F603}",
options: String.CompareOptions.literal,
range: s.index(s.startIndex, offsetBy: 1)..<s.index(s.startIndex, offsetBy: 3)))
}
NSStringAPIs.test("replacingPercentEscapes(using:)") {
expectOptionalEqual(
"abcd абвг",
"abcd абвг".replacingPercentEscapes(
using: .ascii))
expectOptionalEqual(
"abcd абвг\u{0000}\u{0001}",
"abcd абвг%00%01".replacingPercentEscapes(
using: .ascii))
expectOptionalEqual(
"abcd абвг",
"%61%62%63%64%20%D0%B0%D0%B1%D0%B2%D0%B3"
.replacingPercentEscapes(using: .utf8))
expectEmpty("%ED%B0".replacingPercentEscapes(
using: .utf8))
expectEmpty("%zz".replacingPercentEscapes(
using: .utf8))
}
NSStringAPIs.test("replacingPercentEscapes(using:)/rdar18029471")
.xfail(
.custom({ true },
reason: "<rdar://problem/18029471> NSString " +
"replacingPercentEscapesUsingEncoding: does not return nil " +
"when a byte sequence is not legal in ASCII"))
.code {
expectEmpty(
"abcd%FF".replacingPercentEscapes(
using: .ascii))
}
NSStringAPIs.test("resolvingSymlinksInPath") {
// <rdar://problem/18030188> Difference between
// resolvingSymlinksInPath and stringByStandardizingPath is unclear
expectEqual("", "".resolvingSymlinksInPath)
expectEqual(
"/var", "/private/var/tmp////..//".resolvingSymlinksInPath)
}
NSStringAPIs.test("standardizingPath") {
// <rdar://problem/18030188> Difference between
// resolvingSymlinksInPath and standardizingPath is unclear
expectEqual("", "".standardizingPath)
expectEqual(
"/var", "/private/var/tmp////..//".standardizingPath)
}
NSStringAPIs.test("trimmingCharacters(in:)") {
expectEqual("", "".trimmingCharacters(
in: CharacterSet.decimalDigits))
expectEqual("abc", "abc".trimmingCharacters(
in: CharacterSet.decimalDigits))
expectEqual("", "123".trimmingCharacters(
in: CharacterSet.decimalDigits))
expectEqual("abc", "123abc789".trimmingCharacters(
in: CharacterSet.decimalDigits))
// Performs Unicode scalar comparison.
expectEqual(
"\u{3099}abc",
"\u{3099}abc".trimmingCharacters(
in: CharacterSet(charactersIn: "\u{3058}")))
}
NSStringAPIs.test("NSString.stringsByAppendingPaths(_:)") {
expectEqual([] as [NSString], ("" as NSString).strings(byAppendingPaths: []) as [NSString])
expectEqual(
[ "/tmp/foo", "/tmp/bar" ] as [NSString],
("/tmp" as NSString).strings(byAppendingPaths: [ "foo", "bar" ]) as [NSString])
}
NSStringAPIs.test("substring(from:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.substring(from: s.startIndex))
expectEqual("\u{3099}そ\u{3099}",
s.substring(from: s.index(s.startIndex, offsetBy: 8)))
expectEqual("", s.substring(from: s.index(s.startIndex, offsetBy: 10)))
}
NSStringAPIs.test("substring(to:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual("", s.substring(to: s.startIndex))
expectEqual("\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}",
s.substring(to: s.index(s.startIndex, offsetBy: 8)))
expectEqual(s, s.substring(to: s.index(s.startIndex, offsetBy: 10)))
}
NSStringAPIs.test("substring(with:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual("", s.substring(with: s.startIndex..<s.startIndex))
expectEqual(
"",
s.substring(with: s.index(s.startIndex, offsetBy: 1)..<s.index(s.startIndex, offsetBy: 1)))
expectEqual("", s.substring(with: s.endIndex..<s.endIndex))
expectEqual(s, s.substring(with: s.startIndex..<s.endIndex))
expectEqual(
"\u{3099}し\u{3099}す\u{3099}",
s.substring(with: s.index(s.startIndex, offsetBy: 5)..<s.index(s.startIndex, offsetBy: 8)))
}
NSStringAPIs.test("localizedUppercase") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenLocaleCurrentLocale("en") {
expectEqual("ABCD", "abCD".localizedUppercase)
}
withOverriddenLocaleCurrentLocale("en") {
expectEqual("АБВГ", "абВГ".localizedUppercase)
}
withOverriddenLocaleCurrentLocale("ru") {
expectEqual("АБВГ", "абВГ".localizedUppercase)
}
withOverriddenLocaleCurrentLocale("ru") {
expectEqual("たちつてと", "たちつてと".localizedUppercase)
}
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
withOverriddenLocaleCurrentLocale("en") {
expectEqual("\u{0049}", "\u{0069}".localizedUppercase)
}
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
withOverriddenLocaleCurrentLocale("tr") {
expectEqual("\u{0130}", "\u{0069}".localizedUppercase)
}
// U+00DF LATIN SMALL LETTER SHARP S
// to upper case:
// U+0053 LATIN CAPITAL LETTER S
// U+0073 LATIN SMALL LETTER S
// But because the whole string is converted to uppercase, we just get two
// U+0053.
withOverriddenLocaleCurrentLocale("en") {
expectEqual("\u{0053}\u{0053}", "\u{00df}".localizedUppercase)
}
// U+FB01 LATIN SMALL LIGATURE FI
// to upper case:
// U+0046 LATIN CAPITAL LETTER F
// U+0069 LATIN SMALL LETTER I
// But because the whole string is converted to uppercase, we get U+0049
// LATIN CAPITAL LETTER I.
withOverriddenLocaleCurrentLocale("ru") {
expectEqual("\u{0046}\u{0049}", "\u{fb01}".localizedUppercase)
}
}
}
NSStringAPIs.test("uppercased(with:)") {
expectLocalizedEquality("ABCD", { loc in "abCD".uppercased(with: loc) }, "en")
expectLocalizedEquality("АБВГ", { loc in "абВГ".uppercased(with: loc) }, "en")
expectLocalizedEquality("АБВГ", { loc in "абВГ".uppercased(with: loc) }, "ru")
expectLocalizedEquality("たちつてと", { loc in "たちつてと".uppercased(with: loc) }, "ru")
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
expectLocalizedEquality("\u{0049}", { loc in "\u{0069}".uppercased(with: loc) }, "en")
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
expectLocalizedEquality("\u{0130}", { loc in "\u{0069}".uppercased(with: loc) }, "tr")
// U+00DF LATIN SMALL LETTER SHARP S
// to upper case:
// U+0053 LATIN CAPITAL LETTER S
// U+0073 LATIN SMALL LETTER S
// But because the whole string is converted to uppercase, we just get two
// U+0053.
expectLocalizedEquality("\u{0053}\u{0053}", { loc in "\u{00df}".uppercased(with: loc) }, "en")
// U+FB01 LATIN SMALL LIGATURE FI
// to upper case:
// U+0046 LATIN CAPITAL LETTER F
// U+0069 LATIN SMALL LETTER I
// But because the whole string is converted to uppercase, we get U+0049
// LATIN CAPITAL LETTER I.
expectLocalizedEquality("\u{0046}\u{0049}", { loc in "\u{fb01}".uppercased(with: loc) }, "ru")
}
NSStringAPIs.test("write(toFile:atomically:encoding:error:)") {
let (_, nonExistentPath) = createNSStringTemporaryFile()
do {
let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit"
try s.write(
toFile: nonExistentPath, atomically: false, encoding: .ascii)
let content = try String(
contentsOfFile: nonExistentPath, encoding: .ascii)
expectEqual(s, content)
} catch {
expectUnreachableCatch(error)
}
}
NSStringAPIs.test("write(to:atomically:encoding:error:)") {
let (_, nonExistentPath) = createNSStringTemporaryFile()
let nonExistentURL = URL(string: "file://" + nonExistentPath)!
do {
let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit"
try s.write(
to: nonExistentURL, atomically: false, encoding: .ascii)
let content = try String(
contentsOfFile: nonExistentPath, encoding: .ascii)
expectEqual(s, content)
} catch {
expectUnreachableCatch(error)
}
}
NSStringAPIs.test("applyingTransform(_:reverse:)") {
if #available(OSX 10.11, iOS 9.0, *) {
do {
let source = "tre\u{300}s k\u{fc}hl"
expectEqual(
"tres kuhl",
source.applyingTransform(.stripDiacritics, reverse: false))
}
do {
let source = "hiragana"
expectEqual(
"ひらがな",
source.applyingTransform(.latinToHiragana, reverse: false))
}
do {
let source = "ひらがな"
expectEqual(
"hiragana",
source.applyingTransform(.latinToHiragana, reverse: true))
}
}
}
NSStringAPIs.test("SameTypeComparisons") {
// U+0323 COMBINING DOT BELOW
// U+0307 COMBINING DOT ABOVE
// U+1E63 LATIN SMALL LETTER S WITH DOT BELOW
let xs = "\u{1e69}"
expectTrue(xs == "s\u{323}\u{307}")
expectFalse(xs != "s\u{323}\u{307}")
expectTrue("s\u{323}\u{307}" == xs)
expectFalse("s\u{323}\u{307}" != xs)
expectTrue("\u{1e69}" == "s\u{323}\u{307}")
expectFalse("\u{1e69}" != "s\u{323}\u{307}")
expectTrue(xs == xs)
expectFalse(xs != xs)
}
NSStringAPIs.test("MixedTypeComparisons") {
// U+0323 COMBINING DOT BELOW
// U+0307 COMBINING DOT ABOVE
// U+1E63 LATIN SMALL LETTER S WITH DOT BELOW
// NSString does not decompose characters, so the two strings will be (==) in
// swift but not in Foundation.
let xs = "\u{1e69}"
let ys: NSString = "s\u{323}\u{307}"
expectFalse(ys == "\u{1e69}")
expectTrue(ys != "\u{1e69}")
expectFalse("\u{1e69}" == ys)
expectTrue("\u{1e69}" != ys)
expectFalse(xs as NSString == ys)
expectTrue(xs as NSString != ys)
expectTrue(ys == ys)
expectFalse(ys != ys)
}
NSStringAPIs.test("CompareStringsWithUnpairedSurrogates")
.xfail(
.custom({ true },
reason: "<rdar://problem/18029104> Strings referring to underlying " +
"storage with unpaired surrogates compare unequal"))
.code {
let donor = "abcdef"
let acceptor = "\u{1f601}\u{1f602}\u{1f603}"
expectEqual("\u{fffd}\u{1f602}\u{fffd}",
acceptor[donor.index(donor.startIndex, offsetBy: 1)..<donor.index(donor.startIndex, offsetBy: 5)])
}
NSStringAPIs.test("copy construction") {
let expected = "abcd"
let x = NSString(string: expected as NSString)
expectEqual(expected, x as String)
let y = NSMutableString(string: expected as NSString)
expectEqual(expected, y as String)
}
runAllTests()