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swift-mirror/test/1_stdlib/NSStringAPI.swift
Erik Eckstein adef0368bb tests: add import statements to workaround linker errors in all relevant tests.
This is needed if we compile StdlibUnittest with -sil-serialize-all
So far I added the imports only in files which needed them. But this may change, depending on the optimizer (inlining).
Adding them in all files doesn't harm and avoids confusion if someone makes an unrelated change which would result in such a linker error.
2016-01-21 09:59:50 -08:00

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// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %target-build-swift %s -o %t/a.out
// RUN: %target-run %t/a.out
// REQUIRES: executable_test
// REQUIRES: objc_interop
//
// Tests for the NSString APIs as exposed by String
//
import StdlibUnittest
// Also import modules which are used by StdlibUnittest internally. This
// workaround is needed to link all required libraries in case we compile
// StdlibUnittest with -sil-serialize-all.
import SwiftPrivate
#if _runtime(_ObjC)
import ObjectiveC
#endif
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 override func copyWithZone(zone: NSZone) -> AnyObject {
// 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 characterAtIndex(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: [NSStringEncoding] = String.availableStringEncodings()
expectNotEqual(0, availableEncodings.count)
let defaultCStringEncoding = String.defaultCStringEncoding()
expectTrue(availableEncodings.contains(defaultCStringEncoding))
expectNotEqual("", String.localizedNameOfStringEncoding(NSUTF8StringEncoding))
}
NSStringAPIs.test("NSStringEncoding") {
// Make sure NSStringEncoding and its values are type-compatible.
var enc: NSStringEncoding
enc = NSWindowsCP1250StringEncoding
enc = NSUTF32LittleEndianStringEncoding
enc = NSUTF32BigEndianStringEncoding
enc = NSASCIIStringEncoding
enc = NSUTF8StringEncoding
}
NSStringAPIs.test("localizedStringWithFormat(_:...)") {
var world: NSString = "world"
expectEqual("Hello, world!%42", String.localizedStringWithFormat(
"Hello, %@!%%%ld", world, 42))
withOverriddenNSLocaleCurrentLocale("en_US") {
expectEqual("0.5", String.localizedStringWithFormat("%g", 0.5))
}
withOverriddenNSLocaleCurrentLocale("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: NSASCIIStringEncoding)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
do {
let content = try String(
contentsOfFile: nonExistentPath, encoding: NSASCIIStringEncoding)
expectUnreachable()
} catch {
}
}
NSStringAPIs.test("init(contentsOfFile:usedEncoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
do {
var usedEncoding: NSStringEncoding = 0
let content = try String(
contentsOfFile: existingPath, usedEncoding: &usedEncoding)
expectNotEqual(0, usedEncoding)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
var usedEncoding: NSStringEncoding = 0
do {
_ = try String(contentsOfFile: nonExistentPath)
expectUnreachable()
} catch {
expectEqual(0, usedEncoding)
}
}
NSStringAPIs.test("init(contentsOfURL:encoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
let existingURL = NSURL(string: "file://" + existingPath)!
let nonExistentURL = NSURL(string: "file://" + nonExistentPath)!
do {
let content = try String(
contentsOfURL: existingURL, encoding: NSASCIIStringEncoding)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
do {
_ = try String(contentsOfURL: nonExistentURL, encoding: NSASCIIStringEncoding)
expectUnreachable()
} catch {
}
}
NSStringAPIs.test("init(contentsOfURL:usedEncoding:error:)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
let existingURL = NSURL(string: "file://" + existingPath)!
let nonExistentURL = NSURL(string: "file://" + nonExistentPath)!
do {
var usedEncoding: NSStringEncoding = 0
let content = try String(
contentsOfURL: existingURL, usedEncoding: &usedEncoding)
expectNotEqual(0, usedEncoding)
expectEqual(
"Lorem ipsum dolor sit amet, consectetur adipisicing elit,",
content._lines[0])
} catch {
expectUnreachableCatch(error)
}
var usedEncoding: NSStringEncoding = 0
do {
_ = try String(contentsOfURL: nonExistentURL, usedEncoding: &usedEncoding)
expectUnreachable()
} catch {
expectEqual(0, usedEncoding)
}
}
NSStringAPIs.test("init(withCString_: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>.alloc(100)
var i = 0
for b in s.utf8 {
up[i] = b
i += 1
}
up[i] = 0
expectOptionalEqual(s, String(UTF8String: UnsafePointer(up)))
up.dealloc(100)
}
NSStringAPIs.test("canBeConvertedToEncoding(_:)") {
expectTrue("foo".canBeConvertedToEncoding(NSASCIIStringEncoding))
expectFalse("あいう".canBeConvertedToEncoding(NSASCIIStringEncoding))
}
NSStringAPIs.test("capitalizedString") {
expectEqual("Foo Foo Foo Foo", "foo Foo fOO FOO".capitalizedString)
expectEqual("Жжж", "жжж".capitalizedString)
}
NSStringAPIs.test("localizedCapitalizedString") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenNSLocaleCurrentLocale("en") { () -> Void in
expectEqual(
"Foo Foo Foo Foo",
"foo Foo fOO FOO".localizedCapitalizedString)
expectEqual("Жжж", "жжж".localizedCapitalizedString)
return ()
}
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("Iii Iii", "iii III".localizedCapitalizedString)
}
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
withOverriddenNSLocaleCurrentLocale("tr") {
expectEqual("\u{0130}ii Iıı", "iii III".localizedCapitalizedString)
}
}
}
/// 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: (_: NSLocale?) -> String,
_ localeID: String? = nil,
@autoclosure _ message: () -> 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 {
NSLocale(localeIdentifier: $0)
} ?? NSLocale.currentLocale()
expectEqual(
expected, op(locale),
message(), stackTrace: trace)
expectEqual(
op(NSLocale.systemLocale()), op(nil),
message(), stackTrace: trace)
}
NSStringAPIs.test("capitalizedStringWithLocale(_:)") {
expectLocalizedEquality(
"Foo Foo Foo Foo",
"foo Foo fOO FOO".capitalizedStringWithLocale)
expectLocalizedEquality("Жжж","жжж".capitalizedStringWithLocale)
expectEqual(
"Foo Foo Foo Foo",
"foo Foo fOO FOO".capitalizedStringWithLocale(nil))
expectEqual("Жжж", "жжж".capitalizedStringWithLocale(nil))
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
expectLocalizedEquality(
"Iii Iii",
"iii III".capitalizedStringWithLocale, "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",
"iii III".capitalizedStringWithLocale, "tr")
}
NSStringAPIs.test("caseInsensitiveCompare(_:)") {
expectEqual(NSComparisonResult.OrderedSame,
"abCD".caseInsensitiveCompare("AbCd"))
expectEqual(NSComparisonResult.OrderedAscending,
"abCD".caseInsensitiveCompare("AbCdE"))
expectEqual(NSComparisonResult.OrderedSame,
"абвг".caseInsensitiveCompare("АбВг"))
expectEqual(NSComparisonResult.OrderedAscending,
"абВГ".caseInsensitiveCompare("АбВгД"))
}
NSStringAPIs.test("commonPrefixWithString(_:options:)") {
expectEqual("ab",
"abcd".commonPrefixWithString("abdc", options: []))
expectEqual("abC",
"abCd".commonPrefixWithString("abce", options: .CaseInsensitiveSearch))
expectEqual("аб",
"абвг".commonPrefixWithString("абгв", options: []))
expectEqual("абВ",
"абВг".commonPrefixWithString("абвд", options: .CaseInsensitiveSearch))
}
NSStringAPIs.test("compare(_:options:range:locale:)") {
expectEqual(NSComparisonResult.OrderedSame,
"abc".compare("abc"))
expectEqual(NSComparisonResult.OrderedAscending,
"абв".compare("где"))
expectEqual(NSComparisonResult.OrderedSame,
"abc".compare("abC", options: .CaseInsensitiveSearch))
expectEqual(NSComparisonResult.OrderedSame,
"абв".compare("абВ", options: .CaseInsensitiveSearch))
do {
let s = "abcd"
let r = s.startIndex.successor()..<s.endIndex
expectEqual(NSComparisonResult.OrderedSame,
s.compare("bcd", range: r))
}
do {
let s = "абвг"
let r = s.startIndex.successor()..<s.endIndex
expectEqual(NSComparisonResult.OrderedSame,
s.compare("бвг", range: r))
}
expectEqual(NSComparisonResult.OrderedSame,
"abc".compare("abc", locale: NSLocale.currentLocale()))
expectEqual(NSComparisonResult.OrderedSame,
"абв".compare("абв", locale: NSLocale.currentLocale()))
}
NSStringAPIs.test("completePathIntoString(_:caseSensitive:matchesIntoArray:filterTypes)") {
let (existingPath, nonExistentPath) = createNSStringTemporaryFile()
do {
var count = nonExistentPath.completePathIntoString(caseSensitive: false)
expectEqual(0, count)
}
do {
var outputName = "None Found"
var count = nonExistentPath.completePathIntoString(
&outputName, caseSensitive: false)
expectEqual(0, count)
expectEqual("None Found", outputName)
}
do {
var outputName = "None Found"
var outputArray: [String] = [ "foo", "bar" ]
var count = nonExistentPath.completePathIntoString(
&outputName, caseSensitive: false, matchesIntoArray: &outputArray)
expectEqual(0, count)
expectEqual("None Found", outputName)
expectEqual([ "foo", "bar" ], outputArray)
}
do {
var count = existingPath.completePathIntoString(caseSensitive: false)
expectEqual(1, count)
}
do {
var outputName = "None Found"
var count = existingPath.completePathIntoString(
&outputName, caseSensitive: false)
expectEqual(1, count)
expectEqual(existingPath, outputName)
}
do {
var outputName = "None Found"
var outputArray: [String] = [ "foo", "bar" ]
var count = existingPath.completePathIntoString(
&outputName, caseSensitive: false, matchesIntoArray: &outputArray)
expectEqual(1, count)
expectEqual(existingPath, outputName)
expectEqual([ existingPath ], outputArray)
}
do {
var outputName = "None Found"
var count = existingPath.completePathIntoString(
&outputName, caseSensitive: false, filterTypes: [ "txt" ])
expectEqual(1, count)
expectEqual(existingPath, outputName)
}
}
NSStringAPIs.test("componentsSeparatedByCharactersInSet(_:)") {
expectEqual([ "" ], "".componentsSeparatedByCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
expectEqual(
[ "абв", "", "あいう", "abc" ],
"абв12あいう3abc".componentsSeparatedByCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
expectEqual(
[ "абв", "", "あいう", "abc" ],
"абв\u{1F601}\u{1F602}あいう\u{1F603}abc"
.componentsSeparatedByCharactersInSet(
NSCharacterSet(charactersInString: "\u{1F601}\u{1F602}\u{1F603}")))
// Performs Unicode scalar comparison.
expectEqual(
[ "abcし\u{3099}def" ],
"abcし\u{3099}def".componentsSeparatedByCharactersInSet(
NSCharacterSet(charactersInString: "\u{3058}")))
}
NSStringAPIs.test("componentsSeparatedByString(_:)") {
expectEqual([ "" ], "".componentsSeparatedByString("//"))
expectEqual(
[ "абв", "あいう", "abc" ],
"абв//あいう//abc".componentsSeparatedByString("//"))
// Performs normalization.
expectEqual(
[ "abc", "def" ],
"abcし\u{3099}def".componentsSeparatedByString("\u{3058}"))
}
NSStringAPIs.test("cStringUsingEncoding(_:)") {
expectEmpty("абв".cStringUsingEncoding(NSASCIIStringEncoding))
let expectedBytes: [UInt8] = [ 0xd0, 0xb0, 0xd0, 0xb1, 0xd0, 0xb2, 0 ]
var expectedStr: [CChar] = expectedBytes.map { CChar(bitPattern: $0) }
expectEqual(expectedStr,
"абв".cStringUsingEncoding(NSUTF8StringEncoding)!)
}
NSStringAPIs.test("dataUsingEncoding(_:allowLossyConversion:)") {
expectEmpty("あいう".dataUsingEncoding(NSASCIIStringEncoding, allowLossyConversion: false))
do {
let data = "あいう".dataUsingEncoding(NSUTF8StringEncoding)
let bytes = Array(
UnsafeBufferPointer(
start: UnsafePointer<UInt8>(data!.bytes), count: data!.length))
let expectedBytes: [UInt8] = [
0xe3, 0x81, 0x82, 0xe3, 0x81, 0x84, 0xe3, 0x81, 0x86
]
expectEqualSequence(expectedBytes, bytes)
}
}
NSStringAPIs.test("initWithData(_:encoding:)") {
let bytes: [UInt8] = [0xe3, 0x81, 0x82, 0xe3, 0x81, 0x84, 0xe3, 0x81, 0x86]
let data = NSData(bytes: bytes, length: bytes.count)
expectEmpty(String(data: data, encoding: NSNonLossyASCIIStringEncoding))
expectEqualSequence(
"あいう".characters,
String(data: data, encoding: NSUTF8StringEncoding)!.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, inout stop: Bool)
in
lines.append(line)
if lines.count == 3 {
stop = true
}
}
expectEqual([ "abc", "", "defghi" ], lines)
}
NSStringAPIs.test("enumerateLinguisticTagsInRange(_:scheme:options:orthography:_:") {
let s = "Абв. Глокая куздра штеко будланула бокра и кудрячит бокрёнка. Абв."
let startIndex = s.startIndex.advancedBy(5)
let endIndex = s.startIndex.advancedBy(62)
var tags: [String] = []
var tokens: [String] = []
var sentences: [String] = []
s.enumerateLinguisticTagsInRange(startIndex..<endIndex,
scheme: NSLinguisticTagSchemeTokenType,
options: [],
orthography: nil) {
(tag: String, tokenRange: Range<String.Index>, sentenceRange: Range<String.Index>, inout stop: 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("enumerateSubstringsInRange(_:options:_:)") {
let s = "\u{304b}\u{3099}お\u{263a}\u{fe0f}😀😊"
let startIndex = s.startIndex.advancedBy(1)
let endIndex = s.startIndex.advancedBy(5)
do {
var substrings: [String] = []
s.enumerateSubstringsInRange(startIndex..<endIndex,
options: NSStringEnumerationOptions.ByComposedCharacterSequences) {
(substring: String?, substringRange: Range<String.Index>,
enclosingRange: Range<String.Index>, inout stop: Bool)
in
substrings.append(substring!)
expectEqual(substring, s[substringRange])
expectEqual(substring, s[enclosingRange])
}
expectEqual([ "\u{304b}\u{3099}", "", "☺️", "😀" ], substrings)
}
do {
var substrings: [String] = []
s.enumerateSubstringsInRange(startIndex..<endIndex,
options: [.ByComposedCharacterSequences, .SubstringNotRequired]) {
(substring_: String?, substringRange: Range<String.Index>,
enclosingRange: Range<String.Index>, inout stop: 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: [NSStringEncoding] = String.availableStringEncodings()
expectTrue(availableEncodings.contains("abc".fastestEncoding))
}
NSStringAPIs.test("getBytes(_:maxLength:usedLength:encoding:options:range:remainingRange:)") {
let s = "abc абв def где gh жз zzz"
let startIndex = s.startIndex.advancedBy(8)
let endIndex = s.startIndex.advancedBy(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](count: bufferLength, repeatedValue: 0xff)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: 11, usedLength: &usedLength,
encoding: NSUTF8StringEncoding,
options: [],
range: startIndex..<endIndex, remainingRange: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(11, usedLength)
expectEqual(remainingRange.startIndex, startIndex.advancedBy(8))
expectEqual(remainingRange.endIndex, 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](count: bufferLength, repeatedValue: 0xff)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: 11, usedLength: &usedLength,
encoding: NSUTF8StringEncoding,
options: [],
range: startIndex..<endIndex, remainingRange: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(4, usedLength)
expectEqual(remainingRange.startIndex, startIndex.advancedBy(4))
expectEqual(remainingRange.endIndex, 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](count: bufferLength, repeatedValue: 0xff)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: bufferLength,
usedLength: &usedLength, encoding: NSUTF8StringEncoding,
options: [],
range: startIndex..<endIndex, remainingRange: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(19, usedLength)
expectEqual(remainingRange.startIndex, endIndex)
expectEqual(remainingRange.endIndex, endIndex)
}
do {
// Inappropriate encoding.
let bufferLength = 100
var expectedStr: [UInt8] = Array("def ".utf8)
while (expectedStr.count != bufferLength) {
expectedStr.append(0xff)
}
var buffer = [UInt8](count: bufferLength, repeatedValue: 0xff)
var usedLength = 0
var remainingRange = startIndex..<endIndex
var result = s.getBytes(&buffer, maxLength: bufferLength,
usedLength: &usedLength, encoding: NSASCIIStringEncoding,
options: [],
range: startIndex..<endIndex, remainingRange: &remainingRange)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
expectEqual(4, usedLength)
expectEqual(remainingRange.startIndex, startIndex.advancedBy(4))
expectEqual(remainingRange.endIndex, 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(
count: bufferLength, repeatedValue: CChar(bitPattern: 0xff))
let result = s.getCString(&buffer, maxLength: 100,
encoding: NSUTF8StringEncoding)
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(
count: bufferLength, repeatedValue: CChar(bitPattern: 0xff))
let result = s.getCString(&buffer, maxLength: 100,
encoding: NSUTF8StringEncoding)
expectTrue(result)
expectEqualSequence(expectedStr, buffer)
}
do {
// Limit buffer size with 'maxLength'.
let bufferLength = 100
var buffer = Array(
count: bufferLength, repeatedValue: CChar(bitPattern: 0xff))
let result = s.getCString(&buffer, maxLength: 8,
encoding: NSUTF8StringEncoding)
expectFalse(result)
}
do {
// String with unpaired surrogates.
let illFormedUTF16 = NonContiguousNSString([ 0xd800 ]) as String
let bufferLength = 100
var buffer = Array(
count: bufferLength, repeatedValue: CChar(bitPattern: 0xff))
let result = illFormedUTF16.getCString(&buffer, maxLength: 100,
encoding: NSUTF8StringEncoding)
expectFalse(result)
}
}
NSStringAPIs.test("getLineStart(_:end:contentsEnd:forRange:)") {
let s = "Глокая куздра\nштеко будланула\nбокра и кудрячит\nбокрёнка."
let r = s.startIndex.advancedBy(16)..<s.startIndex.advancedBy(35)
do {
var outStartIndex = s.startIndex
var outLineEndIndex = s.startIndex
var outContentsEndIndex = s.startIndex
s.getLineStart(&outStartIndex, end: &outLineEndIndex,
contentsEnd: &outContentsEndIndex, forRange: 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.startIndex.advancedBy(16)..<s.startIndex.advancedBy(35)
do {
var outStartIndex = s.startIndex
var outEndIndex = s.startIndex
var outContentsEndIndex = s.startIndex
s.getParagraphStart(&outStartIndex, end: &outEndIndex,
contentsEnd: &outContentsEndIndex, forRange: 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: NSUTF8StringEncoding))
/*
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: NSASCIIStringEncoding))
*/
// 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: NSUTF8StringEncoding,
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: NSASCIIStringEncoding, 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: [CVarArgType] = [ 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))
expectEqual("Hello, world!%42", String(format: "Hello, %@!%%%ld",
locale: NSLocale.systemLocale(), world, 42))
}
NSStringAPIs.test("init(format:locale:arguments:)") {
let world: NSString = "world"
let args: [CVarArgType] = [ world, 42 ]
expectEqual("Hello, world!%42", String(format: "Hello, %@!%%%ld",
locale: nil, arguments: args))
expectEqual("Hello, world!%42", String(format: "Hello, %@!%%%ld",
locale: NSLocale.systemLocale(), 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".lengthOfBytesUsingEncoding(NSUTF8StringEncoding))
expectEqual(2, "".lengthOfBytesUsingEncoding(NSShiftJISStringEncoding))
}
NSStringAPIs.test("lineRangeForRange(_:)") {
let s = "Глокая куздра\nштеко будланула\nбокра и кудрячит\nбокрёнка."
let r = s.startIndex.advancedBy(16)..<s.startIndex.advancedBy(35)
do {
let result = s.lineRangeForRange(r)
expectEqual("штеко будланула\nбокра и кудрячит\n", s[result])
}
}
NSStringAPIs.test("linguisticTagsInRange(_:scheme:options:orthography:tokenRanges:)") {
let s = "Абв. Глокая куздра штеко будланула бокра и кудрячит бокрёнка. Абв."
let startIndex = s.startIndex.advancedBy(5)
let endIndex = s.startIndex.advancedBy(17)
var tokenRanges: [Range<String.Index>] = []
var tags = s.linguisticTagsInRange(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(NSComparisonResult.OrderedSame,
"abCD".localizedCaseInsensitiveCompare("AbCd"))
expectEqual(NSComparisonResult.OrderedAscending,
"abCD".localizedCaseInsensitiveCompare("AbCdE"))
expectEqual(NSComparisonResult.OrderedSame,
"абвг".localizedCaseInsensitiveCompare("АбВг"))
expectEqual(NSComparisonResult.OrderedAscending,
"абВГ".localizedCaseInsensitiveCompare("АбВгД"))
}
NSStringAPIs.test("localizedCompare(_:)") {
expectEqual(NSComparisonResult.OrderedAscending,
"abCD".localizedCompare("AbCd"))
expectEqual(NSComparisonResult.OrderedAscending,
"абвг".localizedCompare("АбВг"))
}
NSStringAPIs.test("localizedStandardCompare(_:)") {
expectEqual(NSComparisonResult.OrderedAscending,
"abCD".localizedStandardCompare("AbCd"))
expectEqual(NSComparisonResult.OrderedAscending,
"абвг".localizedStandardCompare("АбВг"))
}
NSStringAPIs.test("localizedLowercaseString") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("abcd", "abCD".localizedLowercaseString)
}
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("абвг", "абВГ".localizedLowercaseString)
}
withOverriddenNSLocaleCurrentLocale("ru") {
expectEqual("абвг", "абВГ".localizedLowercaseString)
}
withOverriddenNSLocaleCurrentLocale("ru") {
expectEqual("たちつてと", "たちつてと".localizedLowercaseString)
}
//
// 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
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("\u{0069}\u{0307}", "\u{0130}".localizedLowercaseString)
}
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
withOverriddenNSLocaleCurrentLocale("tr") {
expectEqual("\u{0069}", "\u{0130}".localizedLowercaseString)
}
// 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
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual(
"\u{0069}\u{0307}",
"\u{0049}\u{0307}".localizedLowercaseString)
}
// U+0049 LATIN CAPITAL LETTER I
// U+0307 COMBINING DOT ABOVE
// to lower case in Turkish locale:
// U+0069 LATIN SMALL LETTER I
withOverriddenNSLocaleCurrentLocale("tr") {
expectEqual("\u{0069}", "\u{0049}\u{0307}".localizedLowercaseString)
}
}
}
NSStringAPIs.test("lowercaseStringWithLocale(_:)") {
expectLocalizedEquality("abcd", "abCD".lowercaseStringWithLocale, "en")
expectLocalizedEquality("абвг", "абВГ".lowercaseStringWithLocale, "en")
expectLocalizedEquality("абвг", "абВГ".lowercaseStringWithLocale, "ru")
expectLocalizedEquality("たちつてと", "たちつてと".lowercaseStringWithLocale, "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}", "\u{0130}".lowercaseStringWithLocale, "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}", "\u{0130}".lowercaseStringWithLocale, "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}", "\u{0049}\u{0307}".lowercaseStringWithLocale, "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}", "\u{0049}\u{0307}".lowercaseStringWithLocale, "tr")
}
NSStringAPIs.test("maximumLengthOfBytesUsingEncoding(_:)") {
do {
let s = "abc"
expectLE(s.utf8.count,
s.maximumLengthOfBytesUsingEncoding(NSUTF8StringEncoding))
}
do {
let s = "abc абв"
expectLE(s.utf8.count,
s.maximumLengthOfBytesUsingEncoding(NSUTF8StringEncoding))
}
do {
let s = "\u{1F60A}"
expectLE(s.utf8.count,
s.maximumLengthOfBytesUsingEncoding(NSUTF8StringEncoding))
}
}
NSStringAPIs.test("paragraphRangeForRange(_:)") {
let s = "Глокая куздра\nштеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n Абв."
let r = s.startIndex.advancedBy(16)..<s.startIndex.advancedBy(35)
do {
let result = s.paragraphRangeForRange(r)
expectEqual("штеко будланула\u{2028}бокра и кудрячит\u{2028}бокрёнка.\n", s[result])
}
}
NSStringAPIs.test("pathComponents") {
expectEqual([ "/", "foo", "bar" ], "/foo/bar".pathComponents)
expectEqual([ "/", "абв", "где" ], "/абв/где".pathComponents)
}
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("rangeOfCharacterFromSet(_:options:range:)") {
do {
let charset = NSCharacterSet(charactersInString: "абв")
do {
let s = "Глокая куздра"
let r = s.rangeOfCharacterFromSet(charset)!
expectEqual(s.startIndex.advancedBy(4), r.startIndex)
expectEqual(s.startIndex.advancedBy(5), r.endIndex)
}
do {
expectEmpty("клмн".rangeOfCharacterFromSet(charset))
}
do {
let s = "абвклмнабвклмн"
let r = s.rangeOfCharacterFromSet(charset,
options: .BackwardsSearch)!
expectEqual(s.startIndex.advancedBy(9), r.startIndex)
expectEqual(s.startIndex.advancedBy(10), r.endIndex)
}
do {
let s = "абвклмнабв"
let r = s.rangeOfCharacterFromSet(charset,
range: s.startIndex.advancedBy(3)..<s.endIndex)!
expectEqual(s.startIndex.advancedBy(7), r.startIndex)
expectEqual(s.startIndex.advancedBy(8), r.endIndex)
}
}
do {
let charset = NSCharacterSet(charactersInString: "\u{305f}\u{3099}")
expectEmpty("\u{3060}".rangeOfCharacterFromSet(charset))
}
do {
let charset = NSCharacterSet(charactersInString: "\u{3060}")
expectEmpty("\u{305f}\u{3099}".rangeOfCharacterFromSet(charset))
}
do {
let charset = NSCharacterSet(charactersInString: "\u{1F600}")
do {
let s = "abc\u{1F600}"
expectEqual("\u{1F600}",
s[s.rangeOfCharacterFromSet(charset)!])
}
do {
expectEmpty("abc\u{1F601}".rangeOfCharacterFromSet(charset))
}
}
}
NSStringAPIs.test("rangeOfComposedCharacterSequenceAtIndex(_:)") {
let s = "\u{1F601}abc \u{305f}\u{3099} def"
expectEqual("\u{1F601}", s[s.rangeOfComposedCharacterSequenceAtIndex(
s.startIndex)])
expectEqual("a", s[s.rangeOfComposedCharacterSequenceAtIndex(
s.startIndex.advancedBy(1))])
expectEqual("\u{305f}\u{3099}", s[s.rangeOfComposedCharacterSequenceAtIndex(
s.startIndex.advancedBy(5))])
expectEqual(" ", s[s.rangeOfComposedCharacterSequenceAtIndex(
s.startIndex.advancedBy(6))])
}
NSStringAPIs.test("rangeOfComposedCharacterSequencesForRange(_:)") {
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.rangeOfComposedCharacterSequencesForRange(
s.startIndex..<s.startIndex.advancedBy(2))])
expectEqual("\u{3099}そ\u{3099}", s[s.rangeOfComposedCharacterSequencesForRange(
s.startIndex.advancedBy(8)..<s.startIndex.advancedBy(10))])
}
func toIntRange(
string: String, _ maybeRange: Range<String.Index>?
) -> Range<Int>? {
guard let range = maybeRange else { return nil }
return
string.startIndex.distanceTo(range.startIndex) ..<
string.startIndex.distanceTo(range.endIndex)
}
NSStringAPIs.test("rangeOfString(_:options:range:locale:)") {
do {
let s = ""
expectEmpty(s.rangeOfString(""))
expectEmpty(s.rangeOfString("abc"))
}
do {
let s = "abc"
expectEmpty(s.rangeOfString(""))
expectEmpty(s.rangeOfString("def"))
expectOptionalEqual(0..<3, toIntRange(s, s.rangeOfString("abc")))
}
do {
let s = "\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectOptionalEqual(2..<3, toIntRange(s, s.rangeOfString("\u{3099}")))
expectOptionalEqual(2..<3, toIntRange(s, s.rangeOfString("\u{305a}")))
expectEmpty(s.rangeOfString("\u{3099}す"))
expectEmpty(s.rangeOfString(""))
// Note: here `rangeOfString` 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.rangeOfString("\u{3099}")!])
}
do {
let s = "а\u{0301}б\u{0301}в\u{0301}г\u{0301}"
expectOptionalEqual(0..<1, toIntRange(s, s.rangeOfString("а\u{0301}")))
expectOptionalEqual(1..<2, toIntRange(s, s.rangeOfString("б\u{0301}")))
expectEmpty(s.rangeOfString("б"))
expectEmpty(s.rangeOfString("\u{0301}б"))
// FIXME: Again, indexes that don't correspond to grapheme
// cluster boundaries.
expectEqual("\u{0301}", s[s.rangeOfString("\u{0301}")!])
}
}
NSStringAPIs.test("containsString(_:)") {
withOverriddenNSLocaleCurrentLocale("en") { () -> Void in
expectFalse("".containsString(""))
expectFalse("".containsString("a"))
expectFalse("a".containsString(""))
expectFalse("a".containsString("b"))
expectTrue("a".containsString("a"))
expectFalse("a".containsString("A"))
expectFalse("A".containsString("a"))
expectFalse("a".containsString("a\u{0301}"))
expectTrue("a\u{0301}".containsString("a\u{0301}"))
expectFalse("a\u{0301}".containsString("a"))
expectTrue("a\u{0301}".containsString("\u{0301}"))
expectFalse("a".containsString("\u{0301}"))
expectFalse("i".containsString("I"))
expectFalse("I".containsString("i"))
expectFalse("\u{0130}".containsString("i"))
expectFalse("i".containsString("\u{0130}"))
return ()
}
withOverriddenNSLocaleCurrentLocale("tr") {
expectFalse("\u{0130}".containsString("ı"))
}
}
NSStringAPIs.test("localizedCaseInsensitiveContainsString(_:)") {
withOverriddenNSLocaleCurrentLocale("en") { () -> Void in
expectFalse("".localizedCaseInsensitiveContainsString(""))
expectFalse("".localizedCaseInsensitiveContainsString("a"))
expectFalse("a".localizedCaseInsensitiveContainsString(""))
expectFalse("a".localizedCaseInsensitiveContainsString("b"))
expectTrue("a".localizedCaseInsensitiveContainsString("a"))
expectTrue("a".localizedCaseInsensitiveContainsString("A"))
expectTrue("A".localizedCaseInsensitiveContainsString("a"))
expectFalse("a".localizedCaseInsensitiveContainsString("a\u{0301}"))
expectTrue("a\u{0301}".localizedCaseInsensitiveContainsString("a\u{0301}"))
expectFalse("a\u{0301}".localizedCaseInsensitiveContainsString("a"))
expectTrue("a\u{0301}".localizedCaseInsensitiveContainsString("\u{0301}"))
expectFalse("a".localizedCaseInsensitiveContainsString("\u{0301}"))
expectTrue("i".localizedCaseInsensitiveContainsString("I"))
expectTrue("I".localizedCaseInsensitiveContainsString("i"))
expectFalse("\u{0130}".localizedCaseInsensitiveContainsString("i"))
expectFalse("i".localizedCaseInsensitiveContainsString("\u{0130}"))
return ()
}
withOverriddenNSLocaleCurrentLocale("tr") {
expectFalse("\u{0130}".localizedCaseInsensitiveContainsString("ı"))
}
}
NSStringAPIs.test("localizedStandardContainsString(_:)") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenNSLocaleCurrentLocale("en") { () -> Void in
expectFalse("".localizedStandardContainsString(""))
expectFalse("".localizedStandardContainsString("a"))
expectFalse("a".localizedStandardContainsString(""))
expectFalse("a".localizedStandardContainsString("b"))
expectTrue("a".localizedStandardContainsString("a"))
expectTrue("a".localizedStandardContainsString("A"))
expectTrue("A".localizedStandardContainsString("a"))
expectTrue("a".localizedStandardContainsString("a\u{0301}"))
expectTrue("a\u{0301}".localizedStandardContainsString("a\u{0301}"))
expectTrue("a\u{0301}".localizedStandardContainsString("a"))
expectTrue("a\u{0301}".localizedStandardContainsString("\u{0301}"))
expectFalse("a".localizedStandardContainsString("\u{0301}"))
expectTrue("i".localizedStandardContainsString("I"))
expectTrue("I".localizedStandardContainsString("i"))
expectTrue("\u{0130}".localizedStandardContainsString("i"))
expectTrue("i".localizedStandardContainsString("\u{0130}"))
return ()
}
withOverriddenNSLocaleCurrentLocale("tr") {
expectTrue("\u{0130}".localizedStandardContainsString("ı"))
}
}
}
NSStringAPIs.test("localizedStandardRangeOfString(_:)") {
if #available(OSX 10.11, iOS 9.0, *) {
func rangeOfString(string: String, _ substring: String) -> Range<Int>? {
return toIntRange(
string, string.localizedStandardRangeOfString(substring))
}
withOverriddenNSLocaleCurrentLocale("en") { () -> Void in
expectEmpty(rangeOfString("", ""))
expectEmpty(rangeOfString("", "a"))
expectEmpty(rangeOfString("a", ""))
expectEmpty(rangeOfString("a", "b"))
expectEqual(0..<1, rangeOfString("a", "a"))
expectEqual(0..<1, rangeOfString("a", "A"))
expectEqual(0..<1, rangeOfString("A", "a"))
expectEqual(0..<1, rangeOfString("a", "a\u{0301}"))
expectEqual(0..<1, rangeOfString("a\u{0301}", "a\u{0301}"))
expectEqual(0..<1, rangeOfString("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.localizedStandardRangeOfString("\u{0301}")!])
}
expectEmpty(rangeOfString("a", "\u{0301}"))
expectEqual(0..<1, rangeOfString("i", "I"))
expectEqual(0..<1, rangeOfString("I", "i"))
expectEqual(0..<1, rangeOfString("\u{0130}", "i"))
expectEqual(0..<1, rangeOfString("i", "\u{0130}"))
return ()
}
withOverriddenNSLocaleCurrentLocale("tr") {
expectEqual(0..<1, rangeOfString("\u{0130}", "ı"))
}
}
}
NSStringAPIs.test("smallestEncoding") {
let availableEncodings: [NSStringEncoding] = String.availableStringEncodings()
expectTrue(availableEncodings.contains("abc".smallestEncoding))
}
func getHomeDir() -> String {
#if os(OSX)
return String.fromCString(getpwuid(getuid()).memory.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("stringByAddingPercentEscapesUsingEncoding(_:)") {
expectEmpty(
"abcd абвг".stringByAddingPercentEscapesUsingEncoding(
NSASCIIStringEncoding))
expectOptionalEqual("abcd%20%D0%B0%D0%B1%D0%B2%D0%B3",
"abcd абвг".stringByAddingPercentEscapesUsingEncoding(
NSUTF8StringEncoding))
}
NSStringAPIs.test("stringByAppendingFormat(_:_:...)") {
expectEqual("", "".stringByAppendingFormat(""))
expectEqual("a", "a".stringByAppendingFormat(""))
expectEqual(
"abc абв \u{0001F60A}",
"abc абв \u{0001F60A}".stringByAppendingFormat(""))
let formatArg: NSString = "привет мир \u{0001F60A}"
expectEqual(
"abc абв \u{0001F60A}def привет мир \u{0001F60A} 42",
"abc абв \u{0001F60A}"
.stringByAppendingFormat("def %@ %ld", formatArg, 42))
}
NSStringAPIs.test("stringByAppendingPathComponent(_:)") {
expectEqual("", "".stringByAppendingPathComponent(""))
expectEqual("a.txt", "".stringByAppendingPathComponent("a.txt"))
expectEqual("/tmp/a.txt", "/tmp".stringByAppendingPathComponent("a.txt"))
}
NSStringAPIs.test("stringByAppendingString(_:)") {
expectEqual("", "".stringByAppendingString(""))
expectEqual("a", "a".stringByAppendingString(""))
expectEqual("a", "".stringByAppendingString("a"))
expectEqual("\u{3099}", "".stringByAppendingString("\u{3099}"))
}
NSStringAPIs.test("stringByDeletingLastPathComponent") {
expectEqual("", "".stringByDeletingLastPathComponent)
expectEqual("/", "/".stringByDeletingLastPathComponent)
expectEqual("/", "/tmp".stringByDeletingLastPathComponent)
expectEqual("/tmp", "/tmp/a.txt".stringByDeletingLastPathComponent)
}
NSStringAPIs.test("stringByFoldingWithOptions(_:locale:)") {
func fwo(
s: String, _ options: NSStringCompareOptions
) -> (NSLocale?) -> String {
return { loc in s.stringByFoldingWithOptions(options, locale: loc) }
}
expectLocalizedEquality("abcd", fwo("abCD", .CaseInsensitiveSearch), "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}", .CaseInsensitiveSearch), "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}", .CaseInsensitiveSearch), "tr")
expectLocalizedEquality(
"example123", fwo("", .WidthInsensitiveSearch), "en")
}
NSStringAPIs.test("stringByPaddingToLength(_:withString:startingAtIndex:)") {
expectEqual(
"abc абв \u{0001F60A}",
"abc абв \u{0001F60A}".stringByPaddingToLength(
10, withString: "XYZ", startingAtIndex: 0))
expectEqual(
"abc абв \u{0001F60A}XYZXY",
"abc абв \u{0001F60A}".stringByPaddingToLength(
15, withString: "XYZ", startingAtIndex: 0))
expectEqual(
"abc абв \u{0001F60A}YZXYZ",
"abc абв \u{0001F60A}".stringByPaddingToLength(
15, withString: "XYZ", startingAtIndex: 1))
}
NSStringAPIs.test("stringByRemovingPercentEncoding/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("", "".stringByRemovingPercentEncoding)
}
NSStringAPIs.test("stringByRemovingPercentEncoding") {
expectEmpty("%".stringByRemovingPercentEncoding)
expectOptionalEqual(
"abcd абвг",
"ab%63d %D0%B0%D0%B1%D0%B2%D0%B3".stringByRemovingPercentEncoding)
}
NSStringAPIs.test("stringByReplacingCharactersInRange(_:withString:)") {
do {
let empty = ""
expectEqual("", empty.stringByReplacingCharactersInRange(
empty.startIndex..<empty.startIndex, withString: ""))
}
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.stringByReplacingCharactersInRange(
s.startIndex..<s.startIndex, withString: ""))
expectEqual(s, s.stringByReplacingCharactersInRange(
s.endIndex..<s.endIndex, withString: ""))
expectEqual("zzz" + s, s.stringByReplacingCharactersInRange(
s.startIndex..<s.startIndex, withString: "zzz"))
expectEqual(s + "zzz", s.stringByReplacingCharactersInRange(
s.endIndex..<s.endIndex, withString: "zzz"))
expectEqual(
"\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex..<s.startIndex.advancedBy(7), withString: ""))
expectEqual(
"zzzす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex..<s.startIndex.advancedBy(7), withString: "zzz"))
expectEqual(
"\u{1F602}す\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex..<s.startIndex.advancedBy(7), withString: "\u{1F602}"))
expectEqual("\u{1F601}", s.stringByReplacingCharactersInRange(
s.startIndex.successor()..<s.endIndex, withString: ""))
expectEqual("\u{1F601}zzz", s.stringByReplacingCharactersInRange(
s.startIndex.successor()..<s.endIndex, withString: "zzz"))
expectEqual("\u{1F601}\u{1F602}", s.stringByReplacingCharactersInRange(
s.startIndex.successor()..<s.endIndex, withString: "\u{1F602}"))
expectEqual(
"\u{1F601}aす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex.advancedBy(2)..<s.startIndex.advancedBy(7), withString: ""))
expectEqual(
"\u{1F601}azzzす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex.advancedBy(2)..<s.startIndex.advancedBy(7), withString: "zzz"))
expectEqual(
"\u{1F601}a\u{1F602}す\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingCharactersInRange(
s.startIndex.advancedBy(2)..<s.startIndex.advancedBy(7),
withString: "\u{1F602}"))
}
NSStringAPIs.test("stringByReplacingOccurrencesOfString(_:withString:options:range:)") {
do {
let empty = ""
expectEqual("", empty.stringByReplacingOccurrencesOfString(
"", withString: ""))
expectEqual("", empty.stringByReplacingOccurrencesOfString(
"", withString: "xyz"))
expectEqual("", empty.stringByReplacingOccurrencesOfString(
"abc", withString: "xyz"))
}
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.stringByReplacingOccurrencesOfString("", withString: "xyz"))
expectEqual(s, s.stringByReplacingOccurrencesOfString("xyz", withString: ""))
expectEqual("", s.stringByReplacingOccurrencesOfString(s, withString: ""))
expectEqual(
"\u{1F601}xyzbc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingOccurrencesOfString("a", withString: "xyz"))
expectEqual(
"\u{1F602}\u{1F603}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingOccurrencesOfString(
"\u{1F601}", withString: "\u{1F602}\u{1F603}"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingOccurrencesOfString(
"\u{3099}", withString: "xyz"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingOccurrencesOfString(
"\u{3099}", withString: "xyz"))
expectEqual(
"\u{1F601}abc さ\u{3099}xyzす\u{3099}せ\u{3099}そ\u{3099}",
s.stringByReplacingOccurrencesOfString(
"\u{3058}", withString: "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.stringByReplacingOccurrencesOfString(
"\u{1F601}", withString: "\u{1F602}\u{1F603}",
options: NSStringCompareOptions.LiteralSearch))
expectEqual(s, s.stringByReplacingOccurrencesOfString(
"\u{3058}", withString: "xyz",
options: NSStringCompareOptions.LiteralSearch))
//
// 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.stringByReplacingOccurrencesOfString(
"\u{1F601}", withString: "\u{1F602}\u{1F603}",
options: NSStringCompareOptions.LiteralSearch,
range: s.startIndex..<s.startIndex.advancedBy(1)))
expectEqual(s, s.stringByReplacingOccurrencesOfString(
"\u{1F601}", withString: "\u{1F602}\u{1F603}",
options: NSStringCompareOptions.LiteralSearch,
range: s.startIndex.advancedBy(1)..<s.startIndex.advancedBy(3)))
}
NSStringAPIs.test("stringByReplacingPercentEscapesUsingEncoding(_:)") {
expectOptionalEqual(
"abcd абвг",
"abcd абвг".stringByReplacingPercentEscapesUsingEncoding(
NSASCIIStringEncoding))
expectOptionalEqual(
"abcd абвг\u{0000}\u{0001}",
"abcd абвг%00%01".stringByReplacingPercentEscapesUsingEncoding(
NSASCIIStringEncoding))
expectOptionalEqual(
"abcd абвг",
"%61%62%63%64%20%D0%B0%D0%B1%D0%B2%D0%B3"
.stringByReplacingPercentEscapesUsingEncoding(NSUTF8StringEncoding))
expectEmpty("%ED%B0".stringByReplacingPercentEscapesUsingEncoding(
NSUTF8StringEncoding))
expectEmpty("%zz".stringByReplacingPercentEscapesUsingEncoding(
NSUTF8StringEncoding))
}
NSStringAPIs.test("stringByReplacingPercentEscapesUsingEncoding(_:)/rdar18029471")
.xfail(
.Custom({ true },
reason: "<rdar://problem/18029471> NSString " +
"stringByReplacingPercentEscapesUsingEncoding: does not return nil " +
"when a byte sequence is not legal in ASCII"))
.code {
expectEmpty(
"abcd%FF".stringByReplacingPercentEscapesUsingEncoding(
NSASCIIStringEncoding))
}
NSStringAPIs.test("stringByResolvingSymlinksInPath") {
// <rdar://problem/18030188> Difference between
// stringByResolvingSymlinksInPath and stringByStandardizingPath is unclear
expectEqual("", "".stringByResolvingSymlinksInPath)
expectEqual(
"/var", "/private/var/tmp////..//".stringByResolvingSymlinksInPath)
}
NSStringAPIs.test("stringByStandardizingPath") {
// <rdar://problem/18030188> Difference between
// stringByResolvingSymlinksInPath and stringByStandardizingPath is unclear
expectEqual("", "".stringByStandardizingPath)
expectEqual(
"/var", "/private/var/tmp////..//".stringByStandardizingPath)
}
NSStringAPIs.test("stringByTrimmingCharactersInSet(_:)") {
expectEqual("", "".stringByTrimmingCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
expectEqual("abc", "abc".stringByTrimmingCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
expectEqual("", "123".stringByTrimmingCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
expectEqual("abc", "123abc789".stringByTrimmingCharactersInSet(
NSCharacterSet.decimalDigitCharacterSet()))
// Performs Unicode scalar comparison.
expectEqual(
"\u{3099}abc",
"\u{3099}abc".stringByTrimmingCharactersInSet(
NSCharacterSet(charactersInString: "\u{3058}")))
}
NSStringAPIs.test("stringsByAppendingPaths(_:)") {
expectEqual([], "".stringsByAppendingPaths([]))
expectEqual(
[ "/tmp/foo", "/tmp/bar" ],
"/tmp".stringsByAppendingPaths([ "foo", "bar" ]))
}
NSStringAPIs.test("substringFromIndex(_:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual(s, s.substringFromIndex(s.startIndex))
expectEqual("\u{3099}そ\u{3099}",
s.substringFromIndex(s.startIndex.advancedBy(8)))
expectEqual("", s.substringFromIndex(s.startIndex.advancedBy(10)))
}
NSStringAPIs.test("substringToIndex(_:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual("", s.substringToIndex(s.startIndex))
expectEqual("\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}",
s.substringToIndex(s.startIndex.advancedBy(8)))
expectEqual(s, s.substringToIndex(s.startIndex.advancedBy(10)))
}
NSStringAPIs.test("substringWithRange(_:)") {
let s = "\u{1F601}abc さ\u{3099}し\u{3099}す\u{3099}せ\u{3099}そ\u{3099}"
expectEqual("", s.substringWithRange(s.startIndex..<s.startIndex))
expectEqual(
"",
s.substringWithRange(s.startIndex.advancedBy(1)..<s.startIndex.advancedBy(1)))
expectEqual("", s.substringWithRange(s.endIndex..<s.endIndex))
expectEqual(s, s.substringWithRange(s.startIndex..<s.endIndex))
expectEqual(
"\u{3099}し\u{3099}す\u{3099}",
s.substringWithRange(s.startIndex.advancedBy(5)..<s.startIndex.advancedBy(8)))
}
NSStringAPIs.test("localizedUppercaseString") {
if #available(OSX 10.11, iOS 9.0, *) {
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("ABCD", "abCD".localizedUppercaseString)
}
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("АБВГ", "абВГ".localizedUppercaseString)
}
withOverriddenNSLocaleCurrentLocale("ru") {
expectEqual("АБВГ", "абВГ".localizedUppercaseString)
}
withOverriddenNSLocaleCurrentLocale("ru") {
expectEqual("たちつてと", "たちつてと".localizedUppercaseString)
}
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("\u{0049}", "\u{0069}".localizedUppercaseString)
}
// U+0069 LATIN SMALL LETTER I
// to upper case in Turkish locale:
// U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
withOverriddenNSLocaleCurrentLocale("tr") {
expectEqual("\u{0130}", "\u{0069}".localizedUppercaseString)
}
// 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.
withOverriddenNSLocaleCurrentLocale("en") {
expectEqual("\u{0053}\u{0053}", "\u{00df}".localizedUppercaseString)
}
// 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.
withOverriddenNSLocaleCurrentLocale("ru") {
expectEqual("\u{0046}\u{0049}", "\u{fb01}".localizedUppercaseString)
}
}
}
NSStringAPIs.test("uppercaseStringWithLocale(_:)") {
expectLocalizedEquality("ABCD", "abCD".uppercaseStringWithLocale, "en")
expectLocalizedEquality("АБВГ", "абВГ".uppercaseStringWithLocale, "en")
expectLocalizedEquality("АБВГ", "абВГ".uppercaseStringWithLocale, "ru")
expectLocalizedEquality("たちつてと", "たちつてと".uppercaseStringWithLocale, "ru")
//
// Special casing.
//
// U+0069 LATIN SMALL LETTER I
// to upper case:
// U+0049 LATIN CAPITAL LETTER I
expectLocalizedEquality("\u{0049}", "\u{0069}".uppercaseStringWithLocale, "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}", "\u{0069}".uppercaseStringWithLocale, "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}", "\u{00df}".uppercaseStringWithLocale, "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}", "\u{fb01}".uppercaseStringWithLocale, "ru")
}
NSStringAPIs.test("writeToFile(_:atomically:encoding:error:)") {
let (_, nonExistentPath) = createNSStringTemporaryFile()
do {
let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit"
try s.writeToFile(
nonExistentPath, atomically: false, encoding: NSASCIIStringEncoding)
let content = try String(
contentsOfFile: nonExistentPath, encoding: NSASCIIStringEncoding)
expectEqual(s, content)
} catch {
expectUnreachableCatch(error)
}
}
NSStringAPIs.test("writeToURL(_:atomically:encoding:error:)") {
let (_, nonExistentPath) = createNSStringTemporaryFile()
let nonExistentURL = NSURL(string: "file://" + nonExistentPath)!
do {
let s = "Lorem ipsum dolor sit amet, consectetur adipisicing elit"
try s.writeToURL(
nonExistentURL, atomically: false, encoding: NSASCIIStringEncoding)
let content = try String(
contentsOfFile: nonExistentPath, encoding: NSASCIIStringEncoding)
expectEqual(s, content)
} catch {
expectUnreachableCatch(error)
}
}
NSStringAPIs.test("stringByApplyingTransform(_:reverse:)") {
if #available(OSX 10.11, iOS 9.0, *) {
do {
let source = "tre\u{300}s k\u{fc}hl"
expectEqual(
"tres kuhl",
source.stringByApplyingTransform(
NSStringTransformStripDiacritics, reverse: false))
}
do {
let source = "hiragana"
expectEqual(
"ひらがな",
source.stringByApplyingTransform(
NSStringTransformLatinToHiragana, reverse: false))
}
do {
let source = "ひらがな"
expectEqual(
"hiragana",
source.stringByApplyingTransform(
NSStringTransformLatinToHiragana, reverse: true))
}
}
}
struct ComparisonTest {
let expectedUnicodeCollation: ExpectedComparisonResult
let lhs: String
let rhs: String
let loc: SourceLoc
init(
_ expectedUnicodeCollation: ExpectedComparisonResult,
_ lhs: String, _ rhs: String,
file: String = __FILE__, line: UInt = __LINE__
) {
self.expectedUnicodeCollation = expectedUnicodeCollation
self.lhs = lhs
self.rhs = rhs
self.loc = SourceLoc(file, line, comment: "test data")
}
}
let comparisonTests = [
ComparisonTest(.EQ, "", ""),
ComparisonTest(.LT, "", "a"),
// ASCII cases
ComparisonTest(.LT, "t", "tt"),
ComparisonTest(.GT, "t", "Tt"),
ComparisonTest(.GT, "\u{0}", ""),
ComparisonTest(.EQ, "\u{0}", "\u{0}"),
// Currently fails:
// ComparisonTest(.LT, "\r\n", "t"),
// ComparisonTest(.GT, "\r\n", "\n"),
// ComparisonTest(.LT, "\u{0}", "\u{0}\u{0}"),
// Whitespace
// U+000A LINE FEED (LF)
// U+000B LINE TABULATION
// U+000C FORM FEED (FF)
// U+0085 NEXT LINE (NEL)
// U+2028 LINE SEPARATOR
// U+2029 PARAGRAPH SEPARATOR
ComparisonTest(.GT, "\u{0085}", "\n"),
ComparisonTest(.GT, "\u{000b}", "\n"),
ComparisonTest(.GT, "\u{000c}", "\n"),
ComparisonTest(.GT, "\u{2028}", "\n"),
ComparisonTest(.GT, "\u{2029}", "\n"),
ComparisonTest(.GT, "\r\n\r\n", "\r\n"),
// U+0301 COMBINING ACUTE ACCENT
// U+00E1 LATIN SMALL LETTER A WITH ACUTE
ComparisonTest(.EQ, "a\u{301}", "\u{e1}"),
ComparisonTest(.LT, "a", "a\u{301}"),
ComparisonTest(.LT, "a", "\u{e1}"),
// U+304B HIRAGANA LETTER KA
// U+304C HIRAGANA LETTER GA
// U+3099 COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
ComparisonTest(.EQ, "\u{304b}", "\u{304b}"),
ComparisonTest(.EQ, "\u{304c}", "\u{304c}"),
ComparisonTest(.LT, "\u{304b}", "\u{304c}"),
ComparisonTest(.LT, "\u{304b}", "\u{304c}\u{3099}"),
ComparisonTest(.EQ, "\u{304c}", "\u{304b}\u{3099}"),
ComparisonTest(.LT, "\u{304c}", "\u{304c}\u{3099}"),
// U+212B ANGSTROM SIGN
// U+030A COMBINING RING ABOVE
// U+00C5 LATIN CAPITAL LETTER A WITH RING ABOVE
ComparisonTest(.EQ, "\u{212b}", "A\u{30a}"),
ComparisonTest(.EQ, "\u{212b}", "\u{c5}"),
ComparisonTest(.EQ, "A\u{30a}", "\u{c5}"),
ComparisonTest(.LT, "A\u{30a}", "a"),
ComparisonTest(.LT, "A", "A\u{30a}"),
// U+2126 OHM SIGN
// U+03A9 GREEK CAPITAL LETTER OMEGA
ComparisonTest(.EQ, "\u{2126}", "\u{03a9}"),
// U+0323 COMBINING DOT BELOW
// U+0307 COMBINING DOT ABOVE
// U+1E63 LATIN SMALL LETTER S WITH DOT BELOW
// U+1E69 LATIN SMALL LETTER S WITH DOT BELOW AND DOT ABOVE
ComparisonTest(.EQ, "\u{1e69}", "s\u{323}\u{307}"),
ComparisonTest(.EQ, "\u{1e69}", "s\u{307}\u{323}"),
ComparisonTest(.EQ, "\u{1e69}", "\u{1e63}\u{307}"),
ComparisonTest(.EQ, "\u{1e63}", "s\u{323}"),
ComparisonTest(.EQ, "\u{1e63}\u{307}", "s\u{323}\u{307}"),
ComparisonTest(.EQ, "\u{1e63}\u{307}", "s\u{307}\u{323}"),
ComparisonTest(.LT, "s\u{323}", "\u{1e69}"),
// U+FB01 LATIN SMALL LIGATURE FI
ComparisonTest(.EQ, "\u{fb01}", "\u{fb01}"),
ComparisonTest(.LT, "fi", "\u{fb01}"),
// Test that Unicode collation is performed in deterministic mode.
//
// U+0301 COMBINING ACUTE ACCENT
// U+0341 COMBINING ACUTE TONE MARK
// U+0954 DEVANAGARI ACUTE ACCENT
//
// Collation elements from DUCET:
// 0301 ; [.0000.0024.0002] # COMBINING ACUTE ACCENT
// 0341 ; [.0000.0024.0002] # COMBINING ACUTE TONE MARK
// 0954 ; [.0000.0024.0002] # DEVANAGARI ACUTE ACCENT
//
// U+0301 and U+0954 don't decompose in the canonical decomposition mapping.
// U+0341 has a canonical decomposition mapping of U+0301.
ComparisonTest(.EQ, "\u{0301}", "\u{0341}"),
ComparisonTest(.LT, "\u{0301}", "\u{0954}"),
ComparisonTest(.LT, "\u{0341}", "\u{0954}"),
]
func checkStringComparison(
expected: ExpectedComparisonResult,
_ lhs: String, _ rhs: String, _ stackTrace: SourceLocStack
) {
// String / String
expectEqual(expected.isEQ(), lhs == rhs, stackTrace: stackTrace)
expectEqual(expected.isNE(), lhs != rhs, stackTrace: stackTrace)
checkHashable(
expected.isEQ(), lhs, rhs, stackTrace: stackTrace.withCurrentLoc())
expectEqual(expected.isLT(), lhs < rhs, stackTrace: stackTrace)
expectEqual(expected.isLE(), lhs <= rhs, stackTrace: stackTrace)
expectEqual(expected.isGE(), lhs >= rhs, stackTrace: stackTrace)
expectEqual(expected.isGT(), lhs > rhs, stackTrace: stackTrace)
checkComparable(expected, lhs, rhs, stackTrace: stackTrace.withCurrentLoc())
// NSString / NSString
let lhsNSString = lhs as NSString
let rhsNSString = rhs as NSString
let expectedEqualUnicodeScalars =
Array(lhs.unicodeScalars) == Array(rhs.unicodeScalars)
// FIXME: Swift String and NSString comparison may not be equal.
expectEqual(
expectedEqualUnicodeScalars, lhsNSString == rhsNSString,
stackTrace: stackTrace)
expectEqual(
!expectedEqualUnicodeScalars, lhsNSString != rhsNSString,
stackTrace: stackTrace)
checkHashable(
expectedEqualUnicodeScalars, lhsNSString, rhsNSString,
stackTrace: stackTrace.withCurrentLoc())
}
NSStringAPIs.test("String.{Equatable,Hashable,Comparable}") {
for test in comparisonTests {
checkStringComparison(
test.expectedUnicodeCollation, test.lhs, test.rhs,
test.loc.withCurrentLoc())
checkStringComparison(
test.expectedUnicodeCollation.flip(), test.rhs, test.lhs,
test.loc.withCurrentLoc())
}
}
func checkCharacterComparison(
expected: ExpectedComparisonResult,
_ lhs: Character, _ rhs: Character, _ stackTrace: SourceLocStack
) {
// Character / Character
expectEqual(expected.isEQ(), lhs == rhs, stackTrace: stackTrace)
expectEqual(expected.isNE(), lhs != rhs, stackTrace: stackTrace)
checkHashable(
expected.isEQ(), lhs, rhs, stackTrace: stackTrace.withCurrentLoc())
expectEqual(expected.isLT(), lhs < rhs, stackTrace: stackTrace)
expectEqual(expected.isLE(), lhs <= rhs, stackTrace: stackTrace)
expectEqual(expected.isGE(), lhs >= rhs, stackTrace: stackTrace)
expectEqual(expected.isGT(), lhs > rhs, stackTrace: stackTrace)
checkComparable(expected, lhs, rhs, stackTrace: stackTrace.withCurrentLoc())
}
NSStringAPIs.test("Character.{Equatable,Hashable,Comparable}") {
for test in comparisonTests {
if test.lhs.characters.count == 1 && test.rhs.characters.count == 1 {
let lhsCharacter = Character(test.lhs)
let rhsCharacter = Character(test.rhs)
checkCharacterComparison(
test.expectedUnicodeCollation, lhsCharacter, rhsCharacter,
test.loc.withCurrentLoc())
checkCharacterComparison(
test.expectedUnicodeCollation.flip(), rhsCharacter, lhsCharacter,
test.loc.withCurrentLoc())
}
}
}
func checkHasPrefixHasSuffix(
lhs: String, _ rhs: String, _ stackTrace: SourceLocStack
) {
if lhs == "" {
return
}
if rhs == "" {
expectFalse(lhs.hasPrefix(rhs), stackTrace: stackTrace)
expectFalse(lhs.hasSuffix(rhs), stackTrace: stackTrace)
return
}
// To determine the expected results, compare grapheme clusters,
// scalar-to-scalar, of the NFD form of the strings.
let lhsNFDGraphemeClusters =
lhs.decomposedStringWithCanonicalMapping.characters.map {
Array(String($0).unicodeScalars)
}
let rhsNFDGraphemeClusters =
rhs.decomposedStringWithCanonicalMapping.characters.map {
Array(String($0).unicodeScalars)
}
let expectHasPrefix = lhsNFDGraphemeClusters.startsWith(
rhsNFDGraphemeClusters, isEquivalent: (==))
let expectHasSuffix =
lhsNFDGraphemeClusters.lazy.reverse().startsWith(
rhsNFDGraphemeClusters.lazy.reverse(), isEquivalent: (==))
expectEqual(expectHasPrefix, lhs.hasPrefix(rhs), stackTrace: stackTrace)
expectEqual(
expectHasPrefix, (lhs + "abc").hasPrefix(rhs), stackTrace: stackTrace)
expectEqual(expectHasSuffix, lhs.hasSuffix(rhs), stackTrace: stackTrace)
expectEqual(
expectHasSuffix, ("abc" + lhs).hasSuffix(rhs), stackTrace: stackTrace)
}
NSStringAPIs.test("hasPrefix,hasSuffix") {
for test in comparisonTests {
checkHasPrefixHasSuffix(test.lhs, test.rhs, test.loc.withCurrentLoc())
checkHasPrefixHasSuffix(test.rhs, test.lhs, test.loc.withCurrentLoc())
}
}
NSStringAPIs.test("Failures{hasPrefix,hasSuffix}-CF")
.xfail(.Custom({ true }, reason: "rdar://problem/19034601")).code {
let test = ComparisonTest(.LT, "\u{0}", "\u{0}\u{0}")
checkHasPrefixHasSuffix(test.lhs, test.rhs, test.loc.withCurrentLoc())
}
NSStringAPIs.test("Failures{hasPrefix,hasSuffix}")
.xfail(.Custom({ true }, reason: "blocked on rdar://problem/19036555")).code {
let tests =
[ComparisonTest(.LT, "\r\n", "t"), ComparisonTest(.GT, "\r\n", "\n")]
tests.forEach {
checkHasPrefixHasSuffix($0.lhs, $0.rhs, $0.loc.withCurrentLoc())
}
}
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 == ys)
expectTrue(xs != 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.startIndex.advancedBy(1)..<donor.startIndex.advancedBy(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)
}
var CStringTests = TestSuite("CStringTests")
func getNullCString() -> UnsafeMutablePointer<CChar> {
return nil
}
func getASCIICString() -> (UnsafeMutablePointer<CChar>, dealloc: () -> ()) {
let up = UnsafeMutablePointer<CChar>.alloc(100)
up[0] = 0x61
up[1] = 0x62
up[2] = 0
return (up, { up.dealloc(100) })
}
func getNonASCIICString() -> (UnsafeMutablePointer<CChar>, dealloc: () -> ()) {
let up = UnsafeMutablePointer<UInt8>.alloc(100)
up[0] = 0xd0
up[1] = 0xb0
up[2] = 0xd0
up[3] = 0xb1
up[4] = 0
return (UnsafeMutablePointer(up), { up.dealloc(100) })
}
func getIllFormedUTF8String1(
) -> (UnsafeMutablePointer<CChar>, dealloc: () -> ()) {
let up = UnsafeMutablePointer<UInt8>.alloc(100)
up[0] = 0x41
up[1] = 0xed
up[2] = 0xa0
up[3] = 0x80
up[4] = 0x41
up[5] = 0
return (UnsafeMutablePointer(up), { up.dealloc(100) })
}
func getIllFormedUTF8String2(
) -> (UnsafeMutablePointer<CChar>, dealloc: () -> ()) {
let up = UnsafeMutablePointer<UInt8>.alloc(100)
up[0] = 0x41
up[1] = 0xed
up[2] = 0xa0
up[3] = 0x81
up[4] = 0x41
up[5] = 0
return (UnsafeMutablePointer(up), { up.dealloc(100) })
}
func asCCharArray(a: [UInt8]) -> [CChar] {
return a.map { CChar(bitPattern: $0) }
}
CStringTests.test("String.fromCString") {
do {
let s = getNullCString()
expectEmpty(String.fromCString(s))
}
do {
let (s, dealloc) = getASCIICString()
expectOptionalEqual("ab", String.fromCString(s))
dealloc()
}
do {
let (s, dealloc) = getNonASCIICString()
expectOptionalEqual("аб", String.fromCString(s))
dealloc()
}
do {
let (s, dealloc) = getIllFormedUTF8String1()
expectEmpty(String.fromCString(s))
dealloc()
}
}
CStringTests.test("String.fromCStringRepairingIllFormedUTF8") {
do {
let s = getNullCString()
let (result, hadError) = String.fromCStringRepairingIllFormedUTF8(s)
expectEmpty(result)
expectFalse(hadError)
}
do {
let (s, dealloc) = getASCIICString()
let (result, hadError) = String.fromCStringRepairingIllFormedUTF8(s)
expectOptionalEqual("ab", result)
expectFalse(hadError)
dealloc()
}
do {
let (s, dealloc) = getNonASCIICString()
let (result, hadError) = String.fromCStringRepairingIllFormedUTF8(s)
expectOptionalEqual("аб", result)
expectFalse(hadError)
dealloc()
}
do {
let (s, dealloc) = getIllFormedUTF8String1()
let (result, hadError) = String.fromCStringRepairingIllFormedUTF8(s)
expectOptionalEqual("\u{41}\u{fffd}\u{fffd}\u{fffd}\u{41}", result)
expectTrue(hadError)
dealloc()
}
}
runAllTests()