[StdLibUnitTest] Remove overloads that were needed pre-conditional conformance

stdlib/private/StdlibCollectionUnittest/CheckSequenceType.swift

@@ -1977,7 +1977,7 @@ self.test("\(testNamePrefix)._preprocessingPass/semantics") {
       return OpaqueValue(42)
     }
     if wasInvoked {
-      expectOptionalEqual(42, result?.value)
+      expectEqual(42, result?.value)
     } else {
       expectNil(result)
     }
@@ -1999,7 +1999,7 @@ self.test("\(testNamePrefix)._preprocessingPass/semantics") {
     }
     expectNil(result)
     if wasInvoked {
-      expectOptionalEqual(TestError.error2, caughtError as? TestError)
+      expectEqual(TestError.error2, caughtError as? TestError)
     }
   }
 }

stdlib/private/StdlibUnittest/StdlibUnittest.swift

@@ -294,19 +294,6 @@ public func expectNotEqual<T : Equatable>(_ expected: T, _ actual: T,
   }
 }
 
-// Cannot write a sane set of overloads using generics because of:
-// <rdar://problem/17015923> Array -> NSArray implicit conversion insanity
-public func expectOptionalEqual<T : Equatable>(
-  _ expected: T, _ actual: T?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  expectOptionalEqual(expected, actual, message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line), showFrame: false) {$0 == $1}
-}
-
 public func expectOptionalEqual<T>(
   _ expected: T, _ actual: T?,
   _ message: @autoclosure () -> String = "",
@@ -323,146 +310,6 @@ public func expectOptionalEqual<T>(
   }
 }
 
-public func expectEqual<T : Equatable>(_ expected: T?, _ actual: T?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line) {
-  if expected != actual {
-    expectationFailure(
-      "expected: \"\(expected.debugDescription)\" (of type \(String(reflecting: type(of: expected))))\n"
-      + "actual: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-public func expectNotEqual<T : Equatable>(
-  _ expected: T?, _ actual: T?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  if expected == actual {
-    expectationFailure(
-      "unexpected value: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-// Array<T> is not Equatable if T is.  Provide additional overloads.
-// Same for Dictionary.
-
-public func expectEqual<T : Equatable>(
-  _ expected: ContiguousArray<T>, _ actual: ContiguousArray<T>,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  expectEqualTest(expected, actual, message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line), showFrame: false) { $0 == $1 }
-}
-
-public func expectOptionalEqual<T : Equatable>(
-    _ expected: ContiguousArray<T>, _ actual: ContiguousArray<T>?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line) {
-  if (actual == nil) || expected != actual! {
-    expectationFailure(
-      "expected: \"\(expected)\" (of type \(String(reflecting: type(of: expected))))"
-      + "actual: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-
-public func expectEqual<T : Equatable>(
-  _ expected: ArraySlice<T>, _ actual: ArraySlice<T>,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  expectEqualTest(expected, actual, message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line), showFrame: false) { $0 == $1 }
-}
-
-public func expectOptionalEqual<T : Equatable>(
-    _ expected: ArraySlice<T>, _ actual: ArraySlice<T>?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line) {
-  if (actual == nil) || expected != actual! {
-    expectationFailure(
-      "expected: \"\(expected)\" (of type \(String(reflecting: type(of: expected))))"
-      + "actual: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-
-public func expectEqual<T : Equatable>(
-  _ expected: Array<T>, _ actual: Array<T>,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  expectEqualTest(expected, actual, message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line), showFrame: false) { $0 == $1 }
-}
-
-public func expectOptionalEqual<T : Equatable>(
-    _ expected: Array<T>, _ actual: Array<T>?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line) {
-  if (actual == nil) || expected != actual! {
-    expectationFailure(
-      "expected: \"\(expected)\" (of type \(String(reflecting: type(of: expected))))"
-      + "actual: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-
-public func expectEqual<T, U : Equatable>(
-  _ expected: Dictionary<T, U>, _ actual: Dictionary<T, U>,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line
-) {
-  expectEqualTest(expected, actual, message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line), showFrame: false) { $0 == $1 }
-}
-
-public func expectOptionalEqual<T, U : Equatable>(
-    _ expected: Dictionary<T, U>, _ actual: Dictionary<T, U>?,
-  _ message: @autoclosure () -> String = "",
-  stackTrace: SourceLocStack = SourceLocStack(),
-  showFrame: Bool = true,
-  file: String = #file, line: UInt = #line) {
-  if (actual == nil) || expected != actual! {
-    expectationFailure(
-      "expected: \"\(expected)\" (of type \(String(reflecting: type(of: expected))))"
-      + "actual: \"\(actual.debugDescription)\" (of type \(String(reflecting: type(of: actual))))",
-      trace: message(),
-      stackTrace: stackTrace.pushIf(showFrame, file: file, line: line))
-  }
-}
-
-
 public func expectEqual(
   _ expected: Any.Type, _ actual: Any.Type,
   _ message: @autoclosure () -> String = "",

test/stdlib/ErrorBridged.swift

@@ -95,7 +95,7 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
   let testURL = URL(string: "https://swift.org")!
 
   autoreleasepool {
-    let underlyingError = CocoaError(.fileLockingError)
+    let underlyingError = CocoaError(.fileLocking)
       as Error as NSError
     let ns = NSError(domain: NSCocoaErrorDomain,
                      code: NSFileNoSuchFileError,
@@ -116,7 +116,7 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
     case let x as CocoaError:
       cocoaCode = x._code
       expectTrue(x.isFileError)
-      expectEqual(x.code, CocoaError.fileNoSuchFileError)
+      expectEqual(x.code, .fileNoSuchFile)
     default:
       cocoaCode = nil
     }
@@ -128,7 +128,7 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
 
     let isNoSuchFileError: Bool
     switch e {
-    case CocoaError.fileNoSuchFileError:
+    case CocoaError.fileNoSuchFile:
       isNoSuchFileError = true
     default:
       isNoSuchFileError = false
@@ -138,10 +138,10 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
 
     // Check the contents of the error.
     let cocoaError = e as! CocoaError
-    expectOptionalEqual("/dev/null", cocoaError.filePath)
-    expectOptionalEqual(String.Encoding.ascii, cocoaError.stringEncoding)
-    expectOptionalEqual(underlyingError, cocoaError.underlying.map { $0 as NSError })
-    expectOptionalEqual(testURL, cocoaError.url)
+    expectEqual("/dev/null", cocoaError.filePath)
+    expectEqual(String.Encoding.ascii, cocoaError.stringEncoding)
+    expectEqual(underlyingError, cocoaError.underlying.map { $0 as NSError })
+    expectEqual(testURL, cocoaError.url)
 
     // URLError domain
     let nsURL = NSError(domain: NSURLErrorDomain,
@@ -159,7 +159,7 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
     expectTrue(isBadURLError)
 
     let urlError = eURL as! URLError
-    expectOptionalEqual(testURL, urlError.failingURL)
+    expectEqual(testURL, urlError.failingURL)
     expectNil(urlError.failureURLPeerTrust)
 
     // CoreLocation error domain
@@ -179,8 +179,8 @@ ErrorBridgingTests.test("NSError-to-enum bridging") {
     switch eCL {
     case let error as CLError:
       isCLError = true
-      expectOptionalEqual(testURL, (error as NSError).userInfo[NSURLErrorKey as NSObject] as? URL)
-      expectOptionalEqual(testURL, error.userInfo[NSURLErrorKey] as? URL)
+      expectEqual(testURL, (error as NSError).userInfo[NSURLErrorKey as NSObject] as? URL)
+      expectEqual(testURL, error.userInfo[NSURLErrorKey] as? URL)
     default:
       isCLError = false
     }
@@ -485,13 +485,13 @@ func testCustomizedError(error: Error, nsError: NSError) {
     expectNil(nsError.userInfo[NSLocalizedRecoverySuggestionErrorKey as NSObject])
     expectNil(nsError.userInfo[NSHelpAnchorErrorKey as NSObject])
   } else {
-    expectOptionalEqual("something went horribly wrong",
+    expectEqual("something went horribly wrong",
       nsError.userInfo[NSLocalizedDescriptionKey as NSObject] as? String)
-    expectOptionalEqual("because someone wrote 'throw'",
+    expectEqual("because someone wrote 'throw'",
       nsError.userInfo[NSLocalizedFailureReasonErrorKey as NSObject] as? String)
-    expectOptionalEqual("delete the 'throw'",
+    expectEqual("delete the 'throw'",
       nsError.userInfo[NSLocalizedRecoverySuggestionErrorKey as NSObject] as? String)
-    expectOptionalEqual("there is no help when writing tests",
+    expectEqual("there is no help when writing tests",
       nsError.userInfo[NSHelpAnchorErrorKey as NSObject] as? String)
   }
   expectEqual("something went horribly wrong", error.localizedDescription)
@@ -504,10 +504,10 @@ func testCustomizedError(error: Error, nsError: NSError) {
   if #available(OSX 10.11, iOS 9.0, tvOS 9.0, watchOS 2.0, *) {
     expectNil(nsError.userInfo[NSLocalizedRecoveryOptionsErrorKey as NSObject])
   } else {
-    expectOptionalEqual(["Delete 'throw'", "Disable the test" ],
+    expectEqual(["Delete 'throw'", "Disable the test" ],
       nsError.userInfo[NSLocalizedRecoveryOptionsErrorKey as NSObject] as? [String])
   }
-  expectOptionalEqual(["Delete 'throw'", "Disable the test" ],
+  expectEqual(["Delete 'throw'", "Disable the test" ],
     nsError.localizedRecoveryOptions)
 
   // Directly recover.
@@ -519,12 +519,8 @@ func testCustomizedError(error: Error, nsError: NSError) {
   } else {
     attempter = nsError.userInfo[NSRecoveryAttempterErrorKey as NSObject]! as AnyObject
   }
-  expectOptionalEqual(attempter.attemptRecovery(fromError: nsError,
-                      optionIndex: 0),
-    true)
-  expectOptionalEqual(attempter.attemptRecovery(fromError: nsError,
-                      optionIndex: 1),
-    false)
+  expectEqual(attempter.attemptRecovery(fromError: nsError, optionIndex: 0), true)
+  expectEqual(attempter.attemptRecovery(fromError: nsError, optionIndex: 1), false)
 
   // Recover through delegate.
   let rd1 = RecoveryDelegate(expectedSuccess: true, expectedContextInfo: ctx)
@@ -555,7 +551,7 @@ ErrorBridgingTests.test("Customizing NSError via protocols") {
   // CustomNSError
   expectEqual("custom", nsError.domain)
   expectEqual(12345, nsError.code)
-  expectOptionalEqual(URL(string: "https://swift.org")!,
+  expectEqual(URL(string: "https://swift.org"),
     nsError.userInfo[NSURLErrorKey as NSObject] as? URL)
 
   testCustomizedError(error: error, nsError: nsError)
@@ -576,11 +572,10 @@ ErrorBridgingTests.test("Customizing localization/recovery laziness") {
   if #available(OSX 10.11, iOS 9.0, tvOS 9.0, watchOS 2.0, *) {
     expectNil(nsError.userInfo[NSLocalizedRecoveryOptionsErrorKey as NSObject])
   } else {
-    expectOptionalEqual(["Delete 'throw'", "Disable the test" ],
+    expectEqual(["Delete 'throw'", "Disable the test" ],
       nsError.userInfo[NSLocalizedRecoveryOptionsErrorKey as NSObject] as? [String])
   }
-  expectOptionalEqual(["Delete 'throw'", "Disable the test" ],
-    nsError.localizedRecoveryOptions)
+  expectEqual(["Delete 'throw'", "Disable the test" ], nsError.localizedRecoveryOptions)
 
   // None of the operations above should affect the count
   if #available(OSX 10.11, iOS 9.0, tvOS 9.0, watchOS 2.0, *) {
@@ -676,7 +671,7 @@ ErrorBridgingTests.test("Wrapped NSError identity") {
   let nsError5: NSError = cocoaError as NSError
   expectTrue(nsError === nsError5)
 
-  if let cocoaError2 = error as? CocoaError {
+  if error is CocoaError {
     let nsError6: NSError = cocoaError as NSError
     expectTrue(nsError === nsError6)
   } else {

test/stdlib/ImplicitlyUnwrappedOptional.swift

@@ -49,11 +49,11 @@ ImplicitlyUnwrappedOptionalTests.test("flatMap") {
   // let half: Int32 -> Int16! =
   //   { if $0 % 2 == 0 { return Int16($0 / 2) } else { return .none } }
 
-  // expectOptionalEqual(2 as Int16, half(4))
+  // expectEqual(2 as Int16, half(4))
   // expectNil(half(3))
 
   // expectNil((.none as Int!).flatMap(half))
-  // expectOptionalEqual(2 as Int16, (4 as Int!).flatMap(half))
+  // expectEqual(2 as Int16, (4 as Int!).flatMap(half))
   // expectNil((3 as Int!).flatMap(half))
 }