| |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // RUN: %empty-directory(%t) |
| // RUN: %target-build-swift -swift-version 4 %s -o %t/TestData_Swift4 |
| // RUN: %target-codesign %t/TestData_Swift4 |
| // RUN: %target-run %t/TestData_Swift4 |
| // REQUIRES: executable_test |
| // REQUIRES: objc_interop |
| |
| import Foundation |
| import StdlibUnittest |
| |
| var DataTests = TestSuite("TestDataSwift4") |
| |
| DataTests.test("functional map init usage") { |
| let res1 = [[UInt8(0), UInt8(1), UInt8(2)]].map(Data.init) // previously this could be done without being ambiguous (however in swift 4.2 an overload was added that makes it ambiguous as a function ref) |
| // the following two strategies are preferred to the previous version |
| let res2 = [[UInt8(0), UInt8(1), UInt8(2)]].map(Data.init(_:)) |
| let res3 = [[UInt8(0), UInt8(1), UInt8(2)]].map { Data($0) } |
| |
| expectEqual(res1.count, 1) |
| expectEqual(res2.count, 1) |
| expectEqual(res3.count, 1) |
| |
| expectEqual(res1[0], res2[0]) |
| expectEqual(res2[0], res3[0]) |
| } |
| |
| runAllTests() |
