DarwinCompatibility: Restore tests to compiling and working

- Add new test files.

DarwinCompatibilityTests.xcodeproj/project.pbxproj

@@ -8,7 +8,16 @@
 
 /* Begin PBXBuildFile section */
 		1560EA8C219217F8004377E9 /* TestNSCalendar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1560EA8B219217F8004377E9 /* TestNSCalendar.swift */; };
+		B906C30122AC6CE700FCFA2D /* TestNSSortDescriptor.swift in Sources */ = {isa = PBXBuildFile; fileRef = B906C2FF22AC6CE600FCFA2D /* TestNSSortDescriptor.swift */; };
+		B906C30222AC6CE700FCFA2D /* TestURLSessionFTP.swift in Sources */ = {isa = PBXBuildFile; fileRef = B906C30022AC6CE600FCFA2D /* TestURLSessionFTP.swift */; };
+		B906C30422AC6E2A00FCFA2D /* FTPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = B906C30322AC6E2A00FCFA2D /* FTPServer.swift */; };
 		B907F36F20BB188800013CBE /* NSString-ISO-8859-1-data.txt in Resources */ = {isa = PBXBuildFile; fileRef = B907F36E20BB188800013CBE /* NSString-ISO-8859-1-data.txt */; };
+		B91269F622857B7100C78241 /* TestUUID.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269EE22857B7000C78241 /* TestUUID.swift */; };
+		B91269F722857B7100C78241 /* TestDateInterval.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269EF22857B7000C78241 /* TestDateInterval.swift */; };
+		B91269F822857B7100C78241 /* TestMeasurement.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269F022857B7000C78241 /* TestMeasurement.swift */; };
+		B91269F922857B7100C78241 /* TestHost.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269F122857B7000C78241 /* TestHost.swift */; };
+		B91269FA22857B7100C78241 /* TestNSLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269F322857B7100C78241 /* TestNSLock.swift */; };
+		B91269FB22857B7100C78241 /* TestDateComponents.swift in Sources */ = {isa = PBXBuildFile; fileRef = B91269F522857B7100C78241 /* TestDateComponents.swift */; };
 		B917D32420B0DB9700728EE0 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B917D32320B0DB9700728EE0 /* Foundation.framework */; };
 		B917D32620B0DE2000728EE0 /* main.swift in Sources */ = {isa = PBXBuildFile; fileRef = B917D32520B0DE2000728EE0 /* main.swift */; };
 		B940492B223B13D000FB4384 /* TestProgressFraction.swift in Sources */ = {isa = PBXBuildFile; fileRef = B940492A223B13D000FB4384 /* TestProgressFraction.swift */; };
@@ -154,7 +163,19 @@
 
 /* Begin PBXFileReference section */
 		1560EA8B219217F8004377E9 /* TestNSCalendar.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = TestNSCalendar.swift; path = TestFoundation/TestNSCalendar.swift; sourceTree = "<group>"; };
+		B906C2FF22AC6CE600FCFA2D /* TestNSSortDescriptor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNSSortDescriptor.swift; path = TestFoundation/TestNSSortDescriptor.swift; sourceTree = "<group>"; };
+		B906C30022AC6CE600FCFA2D /* TestURLSessionFTP.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestURLSessionFTP.swift; path = TestFoundation/TestURLSessionFTP.swift; sourceTree = "<group>"; };
+		B906C30322AC6E2A00FCFA2D /* FTPServer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = FTPServer.swift; path = TestFoundation/FTPServer.swift; sourceTree = "<group>"; };
 		B907F36E20BB188800013CBE /* NSString-ISO-8859-1-data.txt */ = {isa = PBXFileReference; lastKnownFileType = text; name = "NSString-ISO-8859-1-data.txt"; path = "TestFoundation/Resources/NSString-ISO-8859-1-data.txt"; sourceTree = "<group>"; };
+		B91269ED22857B7000C78241 /* TestNotification.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNotification.swift; path = TestFoundation/TestNotification.swift; sourceTree = "<group>"; };
+		B91269EE22857B7000C78241 /* TestUUID.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestUUID.swift; path = TestFoundation/TestUUID.swift; sourceTree = "<group>"; };
+		B91269EF22857B7000C78241 /* TestDateInterval.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestDateInterval.swift; path = TestFoundation/TestDateInterval.swift; sourceTree = "<group>"; };
+		B91269F022857B7000C78241 /* TestMeasurement.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestMeasurement.swift; path = TestFoundation/TestMeasurement.swift; sourceTree = "<group>"; };
+		B91269F122857B7000C78241 /* TestHost.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestHost.swift; path = TestFoundation/TestHost.swift; sourceTree = "<group>"; };
+		B91269F222857B7100C78241 /* TestNotificationQueue.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNotificationQueue.swift; path = TestFoundation/TestNotificationQueue.swift; sourceTree = "<group>"; };
+		B91269F322857B7100C78241 /* TestNSLock.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNSLock.swift; path = TestFoundation/TestNSLock.swift; sourceTree = "<group>"; };
+		B91269F422857B7100C78241 /* TestNotificationCenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNotificationCenter.swift; path = TestFoundation/TestNotificationCenter.swift; sourceTree = "<group>"; };
+		B91269F522857B7100C78241 /* TestDateComponents.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestDateComponents.swift; path = TestFoundation/TestDateComponents.swift; sourceTree = "<group>"; };
 		B917D31C20B0DB8B00728EE0 /* xdgTestHelper */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = xdgTestHelper; sourceTree = BUILT_PRODUCTS_DIR; };
 		B917D32320B0DB9700728EE0 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
 		B917D32520B0DE2000728EE0 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = main.swift; path = TestFoundation/xdgTestHelper/main.swift; sourceTree = "<group>"; };
@@ -231,7 +252,7 @@
 		B9C89F221F6BF89800087AF4 /* TestNSCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNSCache.swift; path = TestFoundation/TestNSCache.swift; sourceTree = "<group>"; };
 		B9C89F231F6BF89800087AF4 /* TestNSDictionary.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNSDictionary.swift; path = TestFoundation/TestNSDictionary.swift; sourceTree = "<group>"; };
 		B9C89F241F6BF89800087AF4 /* TestNotificationCenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNotificationCenter.swift; path = TestFoundation/TestNotificationCenter.swift; sourceTree = "<group>"; };
-		B9C89F251F6BF89800087AF4 /* TestProcess.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestProcess.swift; path = TestFoundation/TestProcess.swift; sourceTree = "<group>"; };
+		B9C89F251F6BF89800087AF4 /* TestProcess.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestProcess.swift; path = TestFoundation/TestProcess.swift; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.swift; };
 		B9C89F261F6BF89900087AF4 /* TestEnergyFormatter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestEnergyFormatter.swift; path = TestFoundation/TestEnergyFormatter.swift; sourceTree = "<group>"; };
 		B9C89F271F6BF89900087AF4 /* TestNSCompoundPredicate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNSCompoundPredicate.swift; path = TestFoundation/TestNSCompoundPredicate.swift; sourceTree = "<group>"; };
 		B9C89F281F6BF89900087AF4 /* TestNotification.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TestNotification.swift; path = TestFoundation/TestNotification.swift; sourceTree = "<group>"; };
@@ -301,6 +322,18 @@
 		B9C89EB81F6BF47D00087AF4 = {
 			isa = PBXGroup;
 			children = (
+				B906C30322AC6E2A00FCFA2D /* FTPServer.swift */,
+				B906C2FF22AC6CE600FCFA2D /* TestNSSortDescriptor.swift */,
+				B906C30022AC6CE600FCFA2D /* TestURLSessionFTP.swift */,
+				B91269F522857B7100C78241 /* TestDateComponents.swift */,
+				B91269EF22857B7000C78241 /* TestDateInterval.swift */,
+				B91269F122857B7000C78241 /* TestHost.swift */,
+				B91269F022857B7000C78241 /* TestMeasurement.swift */,
+				B91269ED22857B7000C78241 /* TestNotification.swift */,
+				B91269F422857B7100C78241 /* TestNotificationCenter.swift */,
+				B91269F222857B7100C78241 /* TestNotificationQueue.swift */,
+				B91269F322857B7100C78241 /* TestNSLock.swift */,
+				B91269EE22857B7000C78241 /* TestUUID.swift */,
 				B9C1C63322607372002BBEA0 /* FixtureValues.swift */,
 				B940492A223B13D000FB4384 /* TestProgressFraction.swift */,
 				B97E7855222AF995007596B0 /* TestPropertyListEncoder.swift */,
@@ -569,6 +602,18 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				B906C30422AC6E2A00FCFA2D /* FTPServer.swift in Sources */,
+				B906C30122AC6CE700FCFA2D /* TestNSSortDescriptor.swift in Sources */,
+				B906C30222AC6CE700FCFA2D /* TestURLSessionFTP.swift in Sources */,
+				B9C89F771F6BF89C00087AF4 /* TestNotification.swift in Sources */,
+				B91269F622857B7100C78241 /* TestUUID.swift in Sources */,
+				B91269F722857B7100C78241 /* TestDateInterval.swift in Sources */,
+				B91269F822857B7100C78241 /* TestMeasurement.swift in Sources */,
+				B91269F922857B7100C78241 /* TestHost.swift in Sources */,
+				B9C89F7F1F6BF89C00087AF4 /* TestNotificationQueue.swift in Sources */,
+				B91269FA22857B7100C78241 /* TestNSLock.swift in Sources */,
+				B9C89F731F6BF89C00087AF4 /* TestNotificationCenter.swift in Sources */,
+				B91269FB22857B7100C78241 /* TestDateComponents.swift in Sources */,
 				B9C1C63422607372002BBEA0 /* FixtureValues.swift in Sources */,
 				B940492B223B13D000FB4384 /* TestProgressFraction.swift in Sources */,
 				B97E7856222AF995007596B0 /* TestPropertyListEncoder.swift in Sources */,
@@ -639,18 +684,15 @@
 				B9C89F701F6BF89C00087AF4 /* TestDecimal.swift in Sources */,
 				B9C89F711F6BF89C00087AF4 /* TestNSCache.swift in Sources */,
 				B9C89F721F6BF89C00087AF4 /* TestNSDictionary.swift in Sources */,
-				B9C89F731F6BF89C00087AF4 /* TestNotificationCenter.swift in Sources */,
 				B9C89F741F6BF89C00087AF4 /* TestProcess.swift in Sources */,
 				B9C89F751F6BF89C00087AF4 /* TestEnergyFormatter.swift in Sources */,
 				B9C89F761F6BF89C00087AF4 /* TestNSCompoundPredicate.swift in Sources */,
-				B9C89F771F6BF89C00087AF4 /* TestNotification.swift in Sources */,
 				B9C89F781F6BF89C00087AF4 /* TestNSData.swift in Sources */,
 				B9C89F791F6BF89C00087AF4 /* TestNSRange.swift in Sources */,
 				B9C89F7A1F6BF89C00087AF4 /* TestNSGeometry.swift in Sources */,
 				B9C89F7C1F6BF89C00087AF4 /* TestURLCredential.swift in Sources */,
 				B9C89F7D1F6BF89C00087AF4 /* TestRunLoop.swift in Sources */,
 				B9C89F7E1F6BF89C00087AF4 /* TestThread.swift in Sources */,
-				B9C89F7F1F6BF89C00087AF4 /* TestNotificationQueue.swift in Sources */,
 				B9C89F801F6BF89C00087AF4 /* TestJSONSerialization.swift in Sources */,
 				B9C89F811F6BF89C00087AF4 /* TestAffineTransform.swift in Sources */,
 				B9C89F821F6BF89C00087AF4 /* TestNSURLRequest.swift in Sources */,

DarwinCompatibilityTests.xcodeproj/xcshareddata/xcschemes/xdgTestHelper.xcscheme

@@ -27,6 +27,15 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B917D31B20B0DB8B00728EE0"
+            BuildableName = "xdgTestHelper"
+            BlueprintName = "xdgTestHelper"
+            ReferencedContainer = "container:DarwinCompatibilityTests.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
       <Testables>
          <TestableReference
             skipped = "NO">
@@ -50,17 +59,6 @@
             </SkippedTests>
          </TestableReference>
       </Testables>
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "B917D31B20B0DB8B00728EE0"
-            BuildableName = "xdgTestHelper"
-            BlueprintName = "xdgTestHelper"
-            ReferencedContainer = "container:DarwinCompatibilityTests.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -82,8 +80,6 @@
             ReferencedContainer = "container:DarwinCompatibilityTests.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"

Foundation/NSArray.swift

@@ -218,11 +218,19 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
 
     open func description(withLocale locale: Locale?, indent level: Int) -> String {
         var descriptions = [String]()
+        var nonAlphaNum = CharacterSet.alphanumerics
+        nonAlphaNum.invert()
         let cnt = count
         for idx in 0..<cnt {
             let obj = self[idx]
             if let string = obj as? String {
-                descriptions.append(string)
+                if string.isEmpty {
+                    descriptions.append("\"\"")
+                } else if string.rangeOfCharacter(from: nonAlphaNum) != nil {
+                    descriptions.append("\"\(string)\"")
+                } else {
+                    descriptions.append(string)
+                }
             } else if let array = obj as? [Any] {
                 descriptions.append(NSArray(array: array).description(withLocale: locale, indent: level + 1))
             } else if let dict = obj as? [AnyHashable : Any] {

TestFoundation/TestBundle.swift

@@ -30,6 +30,15 @@ internal func testBundle() -> Bundle {
     #endif
 }
 
+
+#if DARWIN_COMPATIBILITY_TESTS
+extension Bundle {
+    static let _supportsFreestandingBundles = false
+    static let _supportsFHSBundles = false
+}
+#endif
+
+
 internal func testBundleName() -> String {
     // Either 'TestFoundation' or 'DarwinCompatibilityTests'
     return testBundle().infoDictionary!["CFBundleName"] as! String
@@ -521,7 +530,8 @@ class TestBundle : XCTestCase {
             XCTAssertNil(bundle.url(forAuxiliaryExecutable: "does_not_exist_at_all"))
         }
     }
-
+
+#if NS_FOUNDATION_ALLOWS_TESTABLE_IMPORT
     func test_bundleReverseBundleLookup() {
         _withEachPlaygroundLayout { (playground) in
             #if !os(Windows)
@@ -542,15 +552,12 @@ class TestBundle : XCTestCase {
         }
     }
 
-#if NS_FOUNDATION_ALLOWS_TESTABLE_IMPORT
     func test_mainBundleExecutableURL() {
-#if !DARWIN_COMPATIBILITY_TESTS // _CFProcessPath() is unavailable on native Foundation
         let maybeURL = Bundle.main.executableURL
         XCTAssertNotNil(maybeURL)
         guard let url = maybeURL else { return }
 
         XCTAssertEqual(url.path, ProcessInfo.processInfo._processPath)
-#endif
     }
 #endif
 
@@ -571,13 +578,13 @@ class TestBundle : XCTestCase {
             ("test_bundlePreflight", test_bundlePreflight),
             ("test_bundleFindExecutable", test_bundleFindExecutable),
             ("test_bundleFindAuxiliaryExecutables", test_bundleFindAuxiliaryExecutables),
-            ("test_bundleReverseBundleLookup", test_bundleReverseBundleLookup),
             ("test_bundleForClass", testExpectedToFailOnWindows(test_bundleForClass, "Functionality not yet implemented on Windows. SR-XXXX")),
         ]
 
         #if NS_FOUNDATION_ALLOWS_TESTABLE_IMPORT
         tests.append(contentsOf: [
             ("test_mainBundleExecutableURL", test_mainBundleExecutableURL),
+            ("test_bundleReverseBundleLookup", test_bundleReverseBundleLookup),
             ])
         #endif
 

TestFoundation/TestFileManager.swift

@@ -1647,11 +1647,13 @@ VIDEOS=StopgapVideos
             try runSingleTest(aIsDirectory: true, bIsDirectory: false, options: .usingNewMetadataOnly)
             try runSingleTest(aIsDirectory: true, bIsDirectory: false, options: [.withoutDeletingBackupItem, .usingNewMetadataOnly])
         }
-
+
+        #if !DARWIN_COMPATIBILITY_TESTS
         print("note: Testing platform-specific replace implementation.", to: &stderr)
         try testReplaceMethod { (a, b, backupItemName, options) -> URL? in
             try fm.replaceItem(at: a, withItemAt: b, backupItemName: backupItemName, options: options)
         }
+        #endif
 
         #if NS_FOUNDATION_ALLOWS_TESTABLE_IMPORT
         print("note: Testing cross-platform replace implementation.", to: &stderr)

TestFoundation/TestImports.swift

@@ -15,6 +15,8 @@
 @_exported import SwiftXCTest
 #else
 @_exported import Foundation
+#if canImport(FoundationNetworking)
 @_exported import FoundationNetworking
+#endif
 @_exported import XCTest
 #endif

TestFoundation/TestMeasurement.swift

@@ -7,6 +7,7 @@
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 //
 
+#if !DARWIN_COMPATIBILITY_TESTS     // https://bugs.swift.org/browse/SR-10904
 class CustomUnit: Unit {
     required init(symbol: String) {
         super.init(symbol: symbol)
@@ -19,6 +20,7 @@ class CustomUnit: Unit {
     public static let bugs = CustomUnit(symbol: "bug")
     public static let features = CustomUnit(symbol: "feature")
 }
+#endif
 
 class TestMeasurement: XCTestCase {
     static var allTests: [(String, (TestMeasurement) -> () throws -> Void)] {
@@ -59,6 +61,7 @@ class TestMeasurement: XCTestCase {
         ]
         checkHashableGroups(durations)
 
+#if !DARWIN_COMPATIBILITY_TESTS
         let custom: [Measurement<CustomUnit>] = [
             Measurement(value: 1, unit: CustomUnit.bugs),
             Measurement(value: 2, unit: CustomUnit.bugs),
@@ -70,6 +73,7 @@ class TestMeasurement: XCTestCase {
             Measurement(value: 4, unit: CustomUnit.features),
         ]
         checkHashable(custom, equalityOracle: { $0 == $1 })
+#endif
     }
 
 }

TestFoundation/TestNSSet.swift

@@ -231,16 +231,16 @@ class TestNSSet : XCTestCase {
     }
 
     func test_description() {
-        let array = NSArray(array: ["array_element1", "array_element2"])
+        let array = NSArray(array: ["array_element1", "arrayElement2", "", "!@#$%^&*()", "a+b"])
         let dictionary = NSDictionary(dictionary: ["key1": "value1", "key2": "value2"])
         let innerSet = NSSet(array: [4444, 5555])
         let set: NSSet = NSSet(array: [array, dictionary, innerSet, 1111, 2222, 3333])
 
         let description = NSString(string: set.description)
-        
-        XCTAssertTrue(description.substring(to: 2).isEqual(to: "{("))
-        XCTAssertTrue(description.substring(from: description.length - 2).isEqual(to: ")}"))
-        XCTAssertTrue(description.contains("        (\n        array_element1,\n        array_element2\n    )"))
+
+        XCTAssertTrue(description.hasPrefix("{("))
+        XCTAssertTrue(description.hasSuffix(")}"))
+        XCTAssertTrue(description.contains("        (\n        \"array_element1\",\n        arrayElement2,\n        \"\",\n        \"!@#$%^&*()\",\n        \"a+b\"\n    )"))
         XCTAssertTrue(description.contains("        key1 = value1"))
         XCTAssertTrue(description.contains("        key2 = value2"))
         XCTAssertTrue(description.contains("        4444"))

TestFoundation/TestNSSortDescriptor.swift

@@ -7,6 +7,7 @@
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 //
 
+#if !DARWIN_COMPATIBILITY_TESTS
 struct IntSortable {
     var value: Int
 }
@@ -233,3 +234,4 @@ class TestNSSortDescriptor: XCTestCase {
         ]
     }
 }
+#endif

TestFoundation/TestNSString.swift

@@ -1054,10 +1054,12 @@ class TestNSString: LoopbackServerTest {
         }
 
         do {
+#if !DARWIN_COMPATIBILITY_TESTS // https://bugs.swift.org/browse/SR-10916
             let path: NSString =  "~/foo/bar/"
             let result = path.standardizingPath
             let expected = NSHomeDirectory().appendingPathComponent("foo/bar")
             XCTAssertEqual(result, expected, "standardizingPath expanding initial tilde.")
+#endif
         }
 
         // relative file paths depend on file path standardizing that is not yet implemented