mirror of
https://github.com/apple/swift.git
synced 2026-06-20 15:42:51 +02:00
Guillaume Lessard
42 lines
1.2 KiB
Swift
42 lines
1.2 KiB
Swift
//===--- EmptyCollection.swift ----------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2026 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// RUN: %target-run-simple-swift
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// REQUIRES: executable_test
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import StdlibUnittest
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var testSuite = TestSuite("EmptyCollection")
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struct NonHashable {}
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if #available(SwiftStdlib 6.4, *) {
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testSuite.test("UnconditionallyHashable") {
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checkHashable(expectedEqual: true, EmptyCollection<AnyHashable>(), EmptyCollection<AnyHashable>())
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checkHashable(expectedEqual: true, EmptyCollection<NonHashable>(), EmptyCollection<NonHashable>())
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}
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}
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testSuite.test("withContigousStorageIfAvailable")
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.require(.stdlib_6_5).code {
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struct W: ~Copyable { let i: Int }
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let zero = EmptyCollection<Int>()
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let wrapped = zero.withContiguousStorageIfAvailable({ W(i: $0.count) })
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if let count = expectNotNil(wrapped) {
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expectEqual(0, count.i)
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}
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}
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runAllTests()
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