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129 lines
4.3 KiB
Swift
129 lines
4.3 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: cp %s %t/main.swift
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// RUN: %target-build-swift -Xfrontend -disable-access-control -module-name a %t/main.swift %S/../Inputs/SmallStringTestUtilities.swift -o %t.out -O
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// RUN: %target-codesign %t.out
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// RUN: %target-run %t.out
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// REQUIRES: executable_test
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// REQUIRES: objc_interop
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import Foundation
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import StdlibUnittest
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var StringBridgeTests = TestSuite("StringBridgeTests")
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extension String {
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init(fromCocoa s: String) {
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self = (s as NSString) as String
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}
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}
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StringBridgeTests.test("Tagged NSString") {
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guard #available(macOS 10.13, iOS 11.0, tvOS 11.0, *) else { return }
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#if arch(i386) || arch(arm)
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#else
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// Bridge tagged strings as small
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expectSmall((("0123456" as NSString) as String))
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expectSmall((("012345678" as NSString) as String))
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expectSmall((("aaaaaaaaaaa" as NSString) as String))
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expectSmall((("bbbbbbbbb" as NSString) as String))
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// Bridge non-tagged as non-small even if they fit, for fear of losing
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// associated information
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let bigAs = ("aaaaaaaaaaaa" as NSString) as String
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let bigBs = ("bbbbbbbbbb" as NSString) as String
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let bigQs = ("????????" as NSString) as String
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expectCocoa(bigAs)
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expectCocoa(bigBs)
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expectCocoa(bigQs)
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#if false // TODO(SR-7594): re-enable
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let littleAsNSString = ("aa" as NSString)
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var littleAs = littleAsNSString as String
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// But become small when appended to
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expectSmall(bigAs + "c")
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expectSmall(bigBs + "c")
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expectSmall("a\(bigAs)")
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expectSmall("a\(bigBs)")
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expectSmall(littleAs + bigQs)
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expectSmall(bigQs + littleAs)
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expectSmall("\(littleAs)bigQs\(littleAs)")
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#endif // false
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#endif // not 32bit
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}
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StringBridgeTests.test("Bridging") {
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// Test bridging retains small string form
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func bridge(_ small: _SmallString) -> String {
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return String(_StringGuts(small))._bridgeToObjectiveCImpl() as! String
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}
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func runTestSmall(_ input: String) throws {
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// Constructed through CF
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guard let fromCocoaSmall = _SmallString(
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_cocoaString: input as NSString
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) else {
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throw "Didn't fit"
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}
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verifySmallString(fromCocoaSmall, input)
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verifySmallString(fromCocoaSmall, bridge(fromCocoaSmall))
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}
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// Pass tests
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#if arch(i386) || arch(arm)
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#else
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if #available(macOS 10.10, iOS 9, *) {
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expectDoesNotThrow({ try runTestSmall("abc") })
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expectDoesNotThrow({ try runTestSmall("defghijk") })
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expectDoesNotThrow({ try runTestSmall("aaaaaaaaaaa") })
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} else {
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// OS X 10.9, iOS 7/8 did not have tagged strings
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expectThrows("Didn't fit", { try runTestSmall("abc") })
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expectThrows("Didn't fit", { try runTestSmall("defghijk") })
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expectThrows("Didn't fit", { try runTestSmall("aaaaaaaaaaa") })
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}
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#endif
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// Fail tests
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//
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expectThrows("Didn't fit", { try runTestSmall("\u{0}") })
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expectThrows("Didn't fit", { try runTestSmall("0123456789abcde") })
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expectThrows("Didn't fit", { try runTestSmall("👨👦abcd") })
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expectThrows("Didn't fit", { try runTestSmall("👨👦") })
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expectThrows("Didn't fit", { try runTestSmall("👨👩👦") })
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expectThrows("Didn't fit", { try runTestSmall("👨👦abcde") })
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}
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func returnOne<T>(_ t: T) -> Int { return 1 }
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StringBridgeTests.test("Character from NSString") {
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guard #available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *) else { return }
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// NOTE: Using hard-coded literals to directly construct NSStrings
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let ns1 = "A" as NSString
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let ns2 = "A\u{301}" as NSString
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let ns3 = "𓁹͇͈͉͍͎͊͋͌ͧͨͩͪͫͬͭͮ͏̛͓͔͕͖͙͚̗̘̙̜̹̺̻̼͐͑͒͗͛ͣͤͥͦ̽̾̿̀́͂̓̈́͆ͧͨͩͪͫͬͭͮ͘̚͜͟͢͝͞͠͡ͅ" as NSString
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let c1 = Character(ns1 as String)
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let c2 = Character(ns2 as String)
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let c3 = Character(ns3 as String)
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expectEqual("A", String(c1))
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expectNotNil(String(c1).utf8.withContiguousStorageIfAvailable(returnOne))
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expectEqual("A\u{301}", String(c2))
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expectNotNil(String(c2).utf8.withContiguousStorageIfAvailable(returnOne))
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expectNil((ns2 as String).utf8.withContiguousStorageIfAvailable(returnOne))
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expectEqual("𓁹͇͈͉͍͎͊͋͌ͧͨͩͪͫͬͭͮ͏̛͓͔͕͖͙͚̗̘̙̜̹̺̻̼͐͑͒͗͛ͣͤͥͦ̽̾̿̀́͂̓̈́͆ͧͨͩͪͫͬͭͮ͘̚͜͟͢͝͞͠͡ͅ", String(c3))
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expectNotNil(String(c3).utf8.withContiguousStorageIfAvailable(returnOne))
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expectNil((ns3 as String).utf8.withContiguousStorageIfAvailable(returnOne))
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}
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runAllTests()
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