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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2023 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import XCTest
import NIOCore
import NIOPosix
import Foundation
final class NIOSingletonsTests: XCTestCase {
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
func testSingletonMultiThreadedEventLoopWorks() async throws {
let works = try await MultiThreadedEventLoopGroup.singleton.any().submit { "yes" }.get()
XCTAssertEqual(works, "yes")
}
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
func testSingletonBlockingPoolWorks() async throws {
let works = try await NIOThreadPool.singleton.runIfActive(
eventLoop: MultiThreadedEventLoopGroup.singleton.any()
) {
"yes"
}.get()
XCTAssertEqual(works, "yes")
}
func testCannotShutdownMultiGroup() {
XCTAssertThrowsError(try MultiThreadedEventLoopGroup.singleton.syncShutdownGracefully()) { error in
XCTAssertEqual(.unsupportedOperation, error as? EventLoopError)
}
}
func testCannotShutdownBlockingPool() {
XCTAssertThrowsError(try NIOThreadPool.singleton.syncShutdownGracefully()) { error in
XCTAssert(error is NIOThreadPoolError.UnsupportedOperation)
}
}
func testMultiGroupThreadPrefix() {
XCTAssert(MultiThreadedEventLoopGroup.singleton.description.contains("NIO-SGLTN-"),
"\(MultiThreadedEventLoopGroup.singleton.description)")
for _ in 0..<100 {
let someEL = MultiThreadedEventLoopGroup.singleton.next()
XCTAssert(someEL.description.contains("NIO-SGLTN-"), "\(someEL.description)")
}
}
func testSingletonsAreEnabledAndCanBeReadMoreThanOnce() {
XCTAssertTrue(NIOSingletons.singletonsEnabledSuggestion)
XCTAssertTrue(NIOSingletons.singletonsEnabledSuggestion)
XCTAssertTrue(NIOSingletons.singletonsEnabledSuggestion)
}
func testCanCreateClientBootstrapWithoutSpecifyingTypeName() {
_ = ClientBootstrap(group: .singletonMultiThreadedEventLoopGroup)
}
}
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