mirror of
https://github.com/swift-server/async-http-client.git
synced 2026-05-03 07:32:29 +00:00
c621142327
Migrate CI to use GitHub Actions. ### Motivation: To migrate to GitHub actions and centralised infrastructure. ### Modifications: Changes of note: * Adopt swift-format using rules from SwiftNIO. * Remove scripts and docker files which are no longer needed. * Disabled warnings-as-errors on Swift 6.0 CI pipelines for now. ### Result: Feature parity with old CI.
913 lines
37 KiB
Swift
913 lines
37 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the AsyncHTTPClient open source project
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//
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// Copyright (c) 2021 Apple Inc. and the AsyncHTTPClient project authors
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// Licensed under Apache License v2.0
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//
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// See LICENSE.txt for license information
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// See CONTRIBUTORS.txt for the list of AsyncHTTPClient project authors
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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//===----------------------------------------------------------------------===//
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import Logging
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import NIOConcurrencyHelpers
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import NIOCore
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import NIOEmbedded
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import NIOHTTP1
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import NIOHTTPCompression
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import NIOPosix
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import NIOTestUtils
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import XCTest
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@testable import AsyncHTTPClient
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class HTTP1ConnectionTests: XCTestCase {
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func testCreateNewConnectionWithDecompression() {
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let embedded = EmbeddedChannel()
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let logger = Logger(label: "test.http1.connection")
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XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 3000)).wait())
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var connection: HTTP1Connection?
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XCTAssertNoThrow(
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connection = try HTTP1Connection.start(
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channel: embedded,
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connectionID: 0,
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delegate: MockHTTP1ConnectionDelegate(),
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decompression: .enabled(limit: .ratio(4)),
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logger: logger
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)
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)
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XCTAssertNotNil(try embedded.pipeline.syncOperations.handler(type: HTTPRequestEncoder.self))
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XCTAssertNotNil(
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try embedded.pipeline.syncOperations.handler(type: ByteToMessageHandler<HTTPResponseDecoder>.self)
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)
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XCTAssertNotNil(try embedded.pipeline.syncOperations.handler(type: NIOHTTPResponseDecompressor.self))
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XCTAssertNoThrow(try connection?.close().wait())
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embedded.embeddedEventLoop.run()
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XCTAssert(!embedded.isActive)
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}
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func testCreateNewConnectionWithoutDecompression() {
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let embedded = EmbeddedChannel()
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let logger = Logger(label: "test.http1.connection")
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XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 3000)).wait())
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XCTAssertNoThrow(
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try HTTP1Connection.start(
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channel: embedded,
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connectionID: 0,
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delegate: MockHTTP1ConnectionDelegate(),
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decompression: .disabled,
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logger: logger
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)
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)
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XCTAssertNotNil(try embedded.pipeline.syncOperations.handler(type: HTTPRequestEncoder.self))
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XCTAssertNotNil(
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try embedded.pipeline.syncOperations.handler(type: ByteToMessageHandler<HTTPResponseDecoder>.self)
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)
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XCTAssertThrowsError(try embedded.pipeline.syncOperations.handler(type: NIOHTTPResponseDecompressor.self)) {
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error in
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XCTAssertEqual(error as? ChannelPipelineError, .notFound)
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}
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}
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func testCreateNewConnectionFailureClosedIO() {
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let embedded = EmbeddedChannel()
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XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 3000)).wait())
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XCTAssertNoThrow(try embedded.close().wait())
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// to really destroy the channel we need to tick once
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embedded.embeddedEventLoop.run()
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let logger = Logger(label: "test.http1.connection")
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XCTAssertThrowsError(
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try HTTP1Connection.start(
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channel: embedded,
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connectionID: 0,
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delegate: MockHTTP1ConnectionDelegate(),
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decompression: .disabled,
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logger: logger
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)
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)
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}
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func testGETRequest() {
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let elg = MultiThreadedEventLoopGroup(numberOfThreads: 2)
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let clientEL = elg.next()
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let serverEL = elg.next()
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defer { XCTAssertNoThrow(try elg.syncShutdownGracefully()) }
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let server = NIOHTTP1TestServer(group: serverEL)
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defer { XCTAssertNoThrow(try server.stop()) }
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let logger = Logger(label: "test")
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let delegate = MockHTTP1ConnectionDelegate()
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delegate.closePromise = clientEL.makePromise(of: Void.self)
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let connection = try! ClientBootstrap(group: clientEL)
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.connect(to: .init(ipAddress: "127.0.0.1", port: server.serverPort))
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.flatMapThrowing {
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try HTTP1Connection.start(
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channel: $0,
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connectionID: 0,
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delegate: delegate,
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decompression: .disabled,
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logger: logger
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)
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}
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.wait()
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var maybeRequest: HTTPClient.Request?
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XCTAssertNoThrow(
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maybeRequest = try HTTPClient.Request(
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url: "http://localhost/hello/swift",
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method: .POST,
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body: .stream(contentLength: 4) { writer -> EventLoopFuture<Void> in
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@Sendable func recursive(count: UInt8, promise: EventLoopPromise<Void>) {
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guard count < 4 else {
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return promise.succeed(())
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}
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writer.write(.byteBuffer(ByteBuffer(bytes: [count]))).whenComplete { result in
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switch result {
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case .failure(let error):
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XCTFail("Unexpected error: \(error)")
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case .success:
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recursive(count: count + 1, promise: promise)
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}
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}
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}
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let promise = clientEL.makePromise(of: Void.self)
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recursive(count: 0, promise: promise)
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return promise.futureResult
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}
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)
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)
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guard let request = maybeRequest else {
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return XCTFail("Expected to have a connection and a request")
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}
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let task = HTTPClient.Task<HTTPClient.Response>(eventLoop: clientEL, logger: logger)
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var maybeRequestBag: RequestBag<ResponseAccumulator>?
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XCTAssertNoThrow(
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maybeRequestBag = try RequestBag(
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request: request,
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eventLoopPreference: .delegate(on: clientEL),
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task: task,
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redirectHandler: nil,
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connectionDeadline: .now() + .seconds(60),
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requestOptions: .forTests(),
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delegate: ResponseAccumulator(request: request)
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)
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)
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guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag.") }
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connection.executeRequest(requestBag)
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XCTAssertNoThrow(
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try server.receiveHeadAndVerify { head in
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XCTAssertEqual(head.method, .POST)
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XCTAssertEqual(head.uri, "/hello/swift")
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XCTAssertEqual(head.headers["content-length"].first, "4")
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}
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)
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var received: UInt8 = 0
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while received < 4 {
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XCTAssertNoThrow(
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try server.receiveBodyAndVerify { body in
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var body = body
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while let read = body.readInteger(as: UInt8.self) {
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XCTAssertEqual(received, read)
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received += 1
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}
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}
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)
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}
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XCTAssertEqual(received, 4)
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XCTAssertNoThrow(try server.receiveEnd())
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XCTAssertNoThrow(try server.writeOutbound(.head(.init(version: .http1_1, status: .ok))))
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XCTAssertNoThrow(try server.writeOutbound(.body(.byteBuffer(ByteBuffer(bytes: [0, 1, 2, 3])))))
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XCTAssertNoThrow(try server.writeOutbound(.end(nil)))
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var response: HTTPClient.Response?
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XCTAssertNoThrow(response = try task.futureResult.wait())
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XCTAssertEqual(response?.body, ByteBuffer(bytes: [0, 1, 2, 3]))
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// connection is closed
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XCTAssertNoThrow(try XCTUnwrap(delegate.closePromise).futureResult.wait())
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}
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func testConnectionClosesOnCloseHeader() {
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let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
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let eventLoop = eventLoopGroup.next()
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defer { XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully()) }
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let httpBin = HTTPBin(handlerFactory: { _ in SuddenlySendsCloseHeaderChannelHandler(closeOnRequest: 1) })
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var maybeChannel: Channel?
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XCTAssertNoThrow(
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maybeChannel = try ClientBootstrap(group: eventLoop).connect(host: "localhost", port: httpBin.port).wait()
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)
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let connectionDelegate = MockConnectionDelegate()
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let logger = Logger(label: "test")
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var maybeConnection: HTTP1Connection?
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XCTAssertNoThrow(
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maybeConnection = try eventLoop.submit {
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try HTTP1Connection.start(
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channel: XCTUnwrap(maybeChannel),
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connectionID: 0,
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delegate: connectionDelegate,
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decompression: .disabled,
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logger: logger
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)
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}.wait()
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)
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guard let connection = maybeConnection else { return XCTFail("Expected to have a connection here") }
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var maybeRequest: HTTPClient.Request?
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XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://localhost:\(httpBin.port)/"))
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guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
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let delegate = ResponseAccumulator(request: request)
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var maybeRequestBag: RequestBag<ResponseAccumulator>?
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XCTAssertNoThrow(
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maybeRequestBag = try RequestBag(
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request: request,
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eventLoopPreference: .delegate(on: eventLoopGroup.next()),
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task: .init(eventLoop: eventLoopGroup.next(), logger: logger),
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redirectHandler: nil,
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connectionDeadline: .now() + .seconds(30),
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requestOptions: .forTests(),
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delegate: delegate
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)
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)
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guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
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connection.executeRequest(requestBag)
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var response: HTTPClient.Response?
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XCTAssertNoThrow(response = try requestBag.task.futureResult.wait())
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XCTAssertEqual(response?.status, .ok)
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XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
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XCTAssertNoThrow(try XCTUnwrap(maybeChannel).closeFuture.wait())
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
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// we need to wait a small amount of time to see the connection close on the server
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try! eventLoop.scheduleTask(in: .milliseconds(200)) {}.futureResult.wait()
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XCTAssertEqual(httpBin.activeConnections, 0)
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}
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func testConnectionClosesOnRandomlyAppearingCloseHeader() {
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let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
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let eventLoop = eventLoopGroup.next()
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defer { XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully()) }
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let closeOnRequest = (30...100).randomElement()!
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let httpBin = HTTPBin(handlerFactory: { _ in
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SuddenlySendsCloseHeaderChannelHandler(closeOnRequest: closeOnRequest)
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})
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var maybeChannel: Channel?
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XCTAssertNoThrow(
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maybeChannel = try ClientBootstrap(group: eventLoop).connect(host: "localhost", port: httpBin.port).wait()
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)
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let connectionDelegate = MockConnectionDelegate()
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let logger = Logger(label: "test")
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var maybeConnection: HTTP1Connection?
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XCTAssertNoThrow(
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maybeConnection = try eventLoop.submit {
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try HTTP1Connection.start(
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channel: XCTUnwrap(maybeChannel),
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connectionID: 0,
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delegate: connectionDelegate,
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decompression: .disabled,
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logger: logger
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)
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}.wait()
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)
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guard let connection = maybeConnection else { return XCTFail("Expected to have a connection here") }
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var counter = 0
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while true {
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counter += 1
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var maybeRequest: HTTPClient.Request?
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XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://localhost:\(httpBin.port)/"))
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guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
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let delegate = ResponseAccumulator(request: request)
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var maybeRequestBag: RequestBag<ResponseAccumulator>?
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XCTAssertNoThrow(
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maybeRequestBag = try RequestBag(
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request: request,
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eventLoopPreference: .delegate(on: eventLoopGroup.next()),
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task: .init(eventLoop: eventLoopGroup.next(), logger: logger),
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redirectHandler: nil,
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connectionDeadline: .now() + .seconds(30),
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requestOptions: .forTests(),
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delegate: delegate
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)
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)
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guard let requestBag = maybeRequestBag else {
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return XCTFail("Expected to be able to create a request bag")
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}
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connection.executeRequest(requestBag)
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var response: HTTPClient.Response?
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XCTAssertNoThrow(response = try requestBag.task.futureResult.wait())
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XCTAssertEqual(response?.status, .ok)
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if response?.headers.first(name: "connection") == "close" {
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break // the loop
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} else {
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XCTAssertEqual(httpBin.activeConnections, 1)
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XCTAssertEqual(connectionDelegate.hitConnectionReleased, counter)
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}
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}
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XCTAssertNoThrow(try XCTUnwrap(maybeChannel).closeFuture.wait())
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
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XCTAssertFalse(try XCTUnwrap(maybeChannel).isActive)
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XCTAssertEqual(counter, closeOnRequest)
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
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XCTAssertEqual(
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connectionDelegate.hitConnectionReleased,
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counter - 1,
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"If a close header is received connection release is not triggered."
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)
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// we need to wait a small amount of time to see the connection close on the server
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try! eventLoop.scheduleTask(in: .milliseconds(200)) {}.futureResult.wait()
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XCTAssertEqual(httpBin.activeConnections, 0)
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}
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func testConnectionClosesAfterTheRequestWithoutHavingSentAnCloseHeader() {
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let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
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let eventLoop = eventLoopGroup.next()
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defer { XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully()) }
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let httpBin = HTTPBin(handlerFactory: { _ in AfterRequestCloseConnectionChannelHandler() })
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defer { XCTAssertNoThrow(try httpBin.shutdown()) }
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var maybeChannel: Channel?
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XCTAssertNoThrow(
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maybeChannel = try ClientBootstrap(group: eventLoop).connect(host: "localhost", port: httpBin.port).wait()
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)
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let connectionDelegate = MockConnectionDelegate()
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let logger = Logger(label: "test")
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var maybeConnection: HTTP1Connection?
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XCTAssertNoThrow(
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maybeConnection = try eventLoop.submit {
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try HTTP1Connection.start(
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channel: XCTUnwrap(maybeChannel),
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connectionID: 0,
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delegate: connectionDelegate,
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decompression: .disabled,
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logger: logger
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)
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}.wait()
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)
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guard let connection = maybeConnection else { return XCTFail("Expected to have a connection here") }
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var maybeRequest: HTTPClient.Request?
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XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://localhost:\(httpBin.port)/"))
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guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
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let delegate = ResponseAccumulator(request: request)
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var maybeRequestBag: RequestBag<ResponseAccumulator>?
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XCTAssertNoThrow(
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maybeRequestBag = try RequestBag(
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request: request,
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eventLoopPreference: .delegate(on: eventLoopGroup.next()),
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task: .init(eventLoop: eventLoopGroup.next(), logger: logger),
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redirectHandler: nil,
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connectionDeadline: .now() + .seconds(30),
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requestOptions: .forTests(),
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delegate: delegate
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)
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)
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guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
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connection.executeRequest(requestBag)
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var response: HTTPClient.Response?
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XCTAssertNoThrow(response = try requestBag.task.futureResult.wait())
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XCTAssertEqual(response?.status, .ok)
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XCTAssertEqual(connectionDelegate.hitConnectionReleased, 1)
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XCTAssertNoThrow(try XCTUnwrap(maybeChannel).closeFuture.wait())
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
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}
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func testConnectionIsClosedAfterSwitchingProtocols() {
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let embedded = EmbeddedChannel()
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let logger = Logger(label: "test.http1.connection")
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XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 3000)).wait())
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var maybeConnection: HTTP1Connection?
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let connectionDelegate = MockConnectionDelegate()
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XCTAssertNoThrow(
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maybeConnection = try HTTP1Connection.start(
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channel: embedded,
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connectionID: 0,
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delegate: connectionDelegate,
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decompression: .enabled(limit: .ratio(4)),
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logger: logger
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)
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)
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guard let connection = maybeConnection else { return XCTFail("Expected to have a connection at this point.") }
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var maybeRequest: HTTPClient.Request?
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XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://swift.org/"))
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guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
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let delegate = ResponseAccumulator(request: request)
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var maybeRequestBag: RequestBag<ResponseAccumulator>?
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XCTAssertNoThrow(
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maybeRequestBag = try RequestBag(
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request: request,
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eventLoopPreference: .delegate(on: embedded.eventLoop),
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task: .init(eventLoop: embedded.eventLoop, logger: logger),
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redirectHandler: nil,
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connectionDeadline: .now() + .seconds(30),
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requestOptions: .forTests(),
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delegate: delegate
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)
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)
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guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
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connection.executeRequest(requestBag)
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XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // head
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XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // end
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|
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let responseString = """
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HTTP/1.1 101 Switching Protocols\r\n\
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Upgrade: websocket\r\n\
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Sec-WebSocket-Accept: xAMUK7/Il9bLRFJrikq6mm8CNZI=\r\n\
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Connection: upgrade\r\n\
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date: Mon, 27 Sep 2021 17:53:14 GMT\r\n\
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\r\n\
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\r\nfoo bar baz
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"""
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XCTAssertTrue(embedded.isActive)
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 0)
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XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
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XCTAssertNoThrow(try embedded.writeInbound(ByteBuffer(string: responseString)))
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XCTAssertFalse(embedded.isActive)
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(embedded.eventLoop as! EmbeddedEventLoop).run() // tick once to run futures.
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XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
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XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
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var response: HTTPClient.Response?
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XCTAssertNoThrow(response = try requestBag.task.futureResult.wait())
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XCTAssertEqual(response?.status, .switchingProtocols)
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XCTAssertEqual(response?.headers.count, 4)
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XCTAssertEqual(response?.body, nil)
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}
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|
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func testConnectionDropAfterEarlyHints() {
|
|
let embedded = EmbeddedChannel()
|
|
let logger = Logger(label: "test.http1.connection")
|
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|
|
XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 3000)).wait())
|
|
|
|
var maybeConnection: HTTP1Connection?
|
|
let connectionDelegate = MockConnectionDelegate()
|
|
XCTAssertNoThrow(
|
|
maybeConnection = try HTTP1Connection.start(
|
|
channel: embedded,
|
|
connectionID: 0,
|
|
delegate: connectionDelegate,
|
|
decompression: .enabled(limit: .ratio(4)),
|
|
logger: logger
|
|
)
|
|
)
|
|
guard let connection = maybeConnection else { return XCTFail("Expected to have a connection at this point.") }
|
|
|
|
var maybeRequest: HTTPClient.Request?
|
|
XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://swift.org/"))
|
|
guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
|
|
|
|
let delegate = ResponseAccumulator(request: request)
|
|
var maybeRequestBag: RequestBag<ResponseAccumulator>?
|
|
XCTAssertNoThrow(
|
|
maybeRequestBag = try RequestBag(
|
|
request: request,
|
|
eventLoopPreference: .delegate(on: embedded.eventLoop),
|
|
task: .init(eventLoop: embedded.eventLoop, logger: logger),
|
|
redirectHandler: nil,
|
|
connectionDeadline: .now() + .seconds(30),
|
|
requestOptions: .forTests(),
|
|
delegate: delegate
|
|
)
|
|
)
|
|
guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
|
|
|
|
connection.executeRequest(requestBag)
|
|
|
|
XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // head
|
|
XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // end
|
|
|
|
let responseString = """
|
|
HTTP/1.1 103 Early Hints\r\n\
|
|
date: Mon, 27 Sep 2021 17:53:14 GMT\r\n\
|
|
\r\n\
|
|
\r\n
|
|
"""
|
|
|
|
XCTAssertTrue(embedded.isActive)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 0)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
XCTAssertNoThrow(try embedded.writeInbound(ByteBuffer(string: responseString)))
|
|
|
|
XCTAssertTrue(embedded.isActive, "The connection remains active after the informational response head")
|
|
XCTAssertNoThrow(try embedded.close().wait(), "the connection was closed")
|
|
|
|
embedded.embeddedEventLoop.run() // tick once to run futures.
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
|
|
XCTAssertThrowsError(try requestBag.task.futureResult.wait()) {
|
|
XCTAssertEqual($0 as? HTTPClientError, .remoteConnectionClosed)
|
|
}
|
|
}
|
|
|
|
func testConnectionIsClosedIfResponseIsReceivedBeforeRequest() {
|
|
let embedded = EmbeddedChannel()
|
|
let logger = Logger(label: "test.http1.connection")
|
|
|
|
XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 0)).wait())
|
|
|
|
let connectionDelegate = MockConnectionDelegate()
|
|
XCTAssertNoThrow(
|
|
try HTTP1Connection.start(
|
|
channel: embedded,
|
|
connectionID: 0,
|
|
delegate: connectionDelegate,
|
|
decompression: .enabled(limit: .ratio(4)),
|
|
logger: logger
|
|
)
|
|
)
|
|
|
|
let responseString = """
|
|
HTTP/1.1 200 OK\r\n\
|
|
date: Mon, 27 Sep 2021 17:53:14 GMT\r\n\
|
|
\r\n\
|
|
\r\n
|
|
"""
|
|
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 0)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
|
|
XCTAssertThrowsError(try embedded.writeInbound(ByteBuffer(string: responseString))) {
|
|
XCTAssertEqual($0 as? NIOHTTPDecoderError, .unsolicitedResponse)
|
|
}
|
|
XCTAssertFalse(embedded.isActive)
|
|
(embedded.eventLoop as! EmbeddedEventLoop).run() // tick once to run futures.
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
}
|
|
|
|
func testDoubleHTTPResponseLine() {
|
|
let embedded = EmbeddedChannel()
|
|
let logger = Logger(label: "test.http1.connection")
|
|
|
|
XCTAssertNoThrow(try embedded.connect(to: SocketAddress(ipAddress: "127.0.0.1", port: 0)).wait())
|
|
|
|
var maybeConnection: HTTP1Connection?
|
|
let connectionDelegate = MockConnectionDelegate()
|
|
XCTAssertNoThrow(
|
|
maybeConnection = try HTTP1Connection.start(
|
|
channel: embedded,
|
|
connectionID: 0,
|
|
delegate: connectionDelegate,
|
|
decompression: .enabled(limit: .ratio(4)),
|
|
logger: logger
|
|
)
|
|
)
|
|
guard let connection = maybeConnection else { return XCTFail("Expected to have a connection at this point.") }
|
|
|
|
var maybeRequest: HTTPClient.Request?
|
|
XCTAssertNoThrow(maybeRequest = try HTTPClient.Request(url: "http://swift.org/"))
|
|
guard let request = maybeRequest else { return XCTFail("Expected to be able to create a request") }
|
|
|
|
let delegate = ResponseAccumulator(request: request)
|
|
var maybeRequestBag: RequestBag<ResponseAccumulator>?
|
|
XCTAssertNoThrow(
|
|
maybeRequestBag = try RequestBag(
|
|
request: request,
|
|
eventLoopPreference: .delegate(on: embedded.eventLoop),
|
|
task: .init(eventLoop: embedded.eventLoop, logger: logger),
|
|
redirectHandler: nil,
|
|
connectionDeadline: .now() + .seconds(30),
|
|
requestOptions: .forTests(),
|
|
delegate: delegate
|
|
)
|
|
)
|
|
guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
|
|
|
|
connection.executeRequest(requestBag)
|
|
|
|
let responseString = """
|
|
HTTP/1.0 200 OK\r\n\
|
|
HTTP/1.0 200 OK\r\n\r\n
|
|
"""
|
|
|
|
XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // head
|
|
XCTAssertNoThrow(try embedded.readOutbound(as: ByteBuffer.self)) // end
|
|
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 0)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
XCTAssertNoThrow(try embedded.writeInbound(ByteBuffer(string: responseString)))
|
|
XCTAssertFalse(embedded.isActive)
|
|
(embedded.eventLoop as! EmbeddedEventLoop).run() // tick once to run futures.
|
|
XCTAssertEqual(connectionDelegate.hitConnectionClosed, 1)
|
|
XCTAssertEqual(connectionDelegate.hitConnectionReleased, 0)
|
|
}
|
|
|
|
// In order to test backpressure we need to make sure that reads will not happen
|
|
// until the backpressure promise is succeeded. Since we cannot guarantee when
|
|
// messages will be delivered to a client pipeline and we need this test to be
|
|
// fast (no waiting for arbitrary amounts of time), we do the following.
|
|
// First, we enforce NIO to send us only 1 byte at a time. Then we send a message
|
|
// of 4 bytes. This will guarantee that if we see first byte of the message, other
|
|
// bytes a ready to be read as well. This will allow us to test if subsequent reads
|
|
// are waiting for backpressure promise.
|
|
func testDownloadStreamingBackpressure() {
|
|
class BackpressureTestDelegate: HTTPClientResponseDelegate {
|
|
typealias Response = Void
|
|
|
|
var _reads = 0
|
|
var _channel: Channel?
|
|
|
|
let lock: NIOLock
|
|
let backpressurePromise: EventLoopPromise<Void>
|
|
let messageReceived: EventLoopPromise<Void>
|
|
|
|
init(eventLoop: EventLoop) {
|
|
self.lock = NIOLock()
|
|
self.backpressurePromise = eventLoop.makePromise()
|
|
self.messageReceived = eventLoop.makePromise()
|
|
}
|
|
|
|
var reads: Int {
|
|
self.lock.withLock {
|
|
self._reads
|
|
}
|
|
}
|
|
|
|
func willExecuteOnChannel(_ channel: Channel) {
|
|
self.lock.withLock {
|
|
self._channel = channel
|
|
}
|
|
}
|
|
|
|
func didReceiveHead(task: HTTPClient.Task<Void>, _ head: HTTPResponseHead) -> EventLoopFuture<Void> {
|
|
task.futureResult.eventLoop.makeSucceededVoidFuture()
|
|
}
|
|
|
|
func didReceiveBodyPart(task: HTTPClient.Task<Response>, _ buffer: ByteBuffer) -> EventLoopFuture<Void> {
|
|
// We count a number of reads received.
|
|
self.lock.withLock {
|
|
self._reads += 1
|
|
}
|
|
// We need to notify the test when first byte of the message is arrived.
|
|
self.messageReceived.succeed(())
|
|
return self.backpressurePromise.futureResult
|
|
}
|
|
|
|
func didFinishRequest(task: HTTPClient.Task<Response>) throws {}
|
|
}
|
|
|
|
final class WriteAfterFutureSucceedsHandler: ChannelInboundHandler {
|
|
typealias InboundIn = HTTPServerRequestPart
|
|
typealias OutboundOut = HTTPServerResponsePart
|
|
|
|
let endFuture: EventLoopFuture<Void>
|
|
|
|
init(endFuture: EventLoopFuture<Void>) {
|
|
self.endFuture = endFuture
|
|
}
|
|
|
|
func channelRead(context: ChannelHandlerContext, data: NIOAny) {
|
|
switch self.unwrapInboundIn(data) {
|
|
case .head:
|
|
let head = HTTPResponseHead(version: HTTPVersion(major: 1, minor: 1), status: .ok)
|
|
context.writeAndFlush(wrapOutboundOut(.head(head)), promise: nil)
|
|
case .body:
|
|
// ignore
|
|
break
|
|
case .end:
|
|
let buffer = context.channel.allocator.buffer(string: "1234")
|
|
context.writeAndFlush(self.wrapOutboundOut(.body(.byteBuffer(buffer))), promise: nil)
|
|
|
|
self.endFuture.hop(to: context.eventLoop).whenSuccess {
|
|
context.writeAndFlush(self.wrapOutboundOut(.end(nil)), promise: nil)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
let logger = Logger(label: "test")
|
|
|
|
// cannot test with NIOTS as `maxMessagesPerRead` is not supported
|
|
let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
|
|
defer { XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully()) }
|
|
let requestEventLoop = eventLoopGroup.next()
|
|
let backpressureDelegate = BackpressureTestDelegate(eventLoop: requestEventLoop)
|
|
|
|
let httpBin = HTTPBin { _ in
|
|
WriteAfterFutureSucceedsHandler(
|
|
endFuture: backpressureDelegate.backpressurePromise.futureResult
|
|
)
|
|
}
|
|
defer { XCTAssertNoThrow(try httpBin.shutdown()) }
|
|
|
|
var maybeChannel: Channel?
|
|
XCTAssertNoThrow(
|
|
maybeChannel = try ClientBootstrap(group: eventLoopGroup)
|
|
.channelOption(ChannelOptions.maxMessagesPerRead, value: 1)
|
|
.channelOption(ChannelOptions.recvAllocator, value: FixedSizeRecvByteBufferAllocator(capacity: 1))
|
|
.connect(host: "localhost", port: httpBin.port)
|
|
.wait()
|
|
)
|
|
guard let channel = maybeChannel else { return XCTFail("Expected to have a channel at this point") }
|
|
let connectionDelegate = MockConnectionDelegate()
|
|
var maybeConnection: HTTP1Connection?
|
|
XCTAssertNoThrow(
|
|
maybeConnection = try channel.eventLoop.submit {
|
|
try HTTP1Connection.start(
|
|
channel: channel,
|
|
connectionID: 0,
|
|
delegate: connectionDelegate,
|
|
decompression: .disabled,
|
|
logger: logger
|
|
)
|
|
}.wait()
|
|
)
|
|
guard let connection = maybeConnection else { return XCTFail("Expected to have a connection at this point") }
|
|
|
|
var maybeRequestBag: RequestBag<BackpressureTestDelegate>?
|
|
|
|
XCTAssertNoThrow(
|
|
maybeRequestBag = try RequestBag(
|
|
request: HTTPClient.Request(url: "http://localhost:\(httpBin.port)/custom"),
|
|
eventLoopPreference: .delegate(on: requestEventLoop),
|
|
task: .init(eventLoop: requestEventLoop, logger: logger),
|
|
redirectHandler: nil,
|
|
connectionDeadline: .now() + .seconds(30),
|
|
requestOptions: .forTests(),
|
|
delegate: backpressureDelegate
|
|
)
|
|
)
|
|
guard let requestBag = maybeRequestBag else { return XCTFail("Expected to be able to create a request bag") }
|
|
backpressureDelegate.willExecuteOnChannel(connection.channel)
|
|
|
|
connection.executeRequest(requestBag)
|
|
|
|
let requestFuture = requestBag.task.futureResult
|
|
|
|
// Send 4 bytes, but only one should be received until the backpressure promise is succeeded.
|
|
|
|
// Now we wait until message is delivered to client channel pipeline
|
|
XCTAssertNoThrow(try backpressureDelegate.messageReceived.futureResult.wait())
|
|
XCTAssertEqual(backpressureDelegate.reads, 1)
|
|
|
|
// Succeed the backpressure promise.
|
|
backpressureDelegate.backpressurePromise.succeed(())
|
|
XCTAssertNoThrow(try requestFuture.wait())
|
|
|
|
// At this point all other bytes should be delivered.
|
|
XCTAssertEqual(backpressureDelegate.reads, 4)
|
|
}
|
|
}
|
|
|
|
class MockHTTP1ConnectionDelegate: HTTP1ConnectionDelegate {
|
|
var releasePromise: EventLoopPromise<Void>?
|
|
var closePromise: EventLoopPromise<Void>?
|
|
|
|
func http1ConnectionReleased(_: HTTP1Connection) {
|
|
self.releasePromise?.succeed(())
|
|
}
|
|
|
|
func http1ConnectionClosed(_: HTTP1Connection) {
|
|
self.closePromise?.succeed(())
|
|
}
|
|
}
|
|
|
|
/// A channel handler that sends a connection close header but does not close the connection.
|
|
class SuddenlySendsCloseHeaderChannelHandler: ChannelInboundHandler {
|
|
typealias InboundIn = HTTPServerRequestPart
|
|
typealias OutboundOut = HTTPServerResponsePart
|
|
|
|
var counter = 1
|
|
let closeOnRequest: Int
|
|
|
|
init(closeOnRequest: Int) {
|
|
self.closeOnRequest = closeOnRequest
|
|
}
|
|
|
|
func channelRead(context: ChannelHandlerContext, data: NIOAny) {
|
|
switch self.unwrapInboundIn(data) {
|
|
case .head(let head):
|
|
XCTAssertLessThanOrEqual(self.counter, self.closeOnRequest)
|
|
XCTAssertTrue(head.headers.contains(name: "host"))
|
|
XCTAssertEqual(head.method, .GET)
|
|
case .body:
|
|
break
|
|
case .end:
|
|
if self.closeOnRequest == self.counter {
|
|
context.write(
|
|
self.wrapOutboundOut(
|
|
.head(.init(version: .http1_1, status: .ok, headers: ["connection": "close"]))
|
|
),
|
|
promise: nil
|
|
)
|
|
context.write(self.wrapOutboundOut(.end(nil)), promise: nil)
|
|
context.flush()
|
|
self.counter += 1
|
|
} else {
|
|
context.write(self.wrapOutboundOut(.head(.init(version: .http1_1, status: .ok))), promise: nil)
|
|
context.write(self.wrapOutboundOut(.end(nil)), promise: nil)
|
|
context.flush()
|
|
self.counter += 1
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// A channel handler that closes a connection after a successful request
|
|
class AfterRequestCloseConnectionChannelHandler: ChannelInboundHandler {
|
|
typealias InboundIn = HTTPServerRequestPart
|
|
typealias OutboundOut = HTTPServerResponsePart
|
|
|
|
init() {}
|
|
|
|
func channelRead(context: ChannelHandlerContext, data: NIOAny) {
|
|
switch self.unwrapInboundIn(data) {
|
|
case .head(let head):
|
|
XCTAssertTrue(head.headers.contains(name: "host"))
|
|
XCTAssertEqual(head.method, .GET)
|
|
case .body:
|
|
break
|
|
case .end:
|
|
context.write(self.wrapOutboundOut(.head(.init(version: .http1_1, status: .ok))), promise: nil)
|
|
context.write(self.wrapOutboundOut(.end(nil)), promise: nil)
|
|
context.flush()
|
|
|
|
context.eventLoop.scheduleTask(in: .milliseconds(20)) {
|
|
context.close(promise: nil)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
class MockConnectionDelegate: HTTP1ConnectionDelegate {
|
|
private var lock = NIOLock()
|
|
|
|
private var _hitConnectionReleased = 0
|
|
private var _hitConnectionClosed = 0
|
|
|
|
var hitConnectionReleased: Int {
|
|
self.lock.withLock { self._hitConnectionReleased }
|
|
}
|
|
|
|
var hitConnectionClosed: Int {
|
|
self.lock.withLock { self._hitConnectionClosed }
|
|
}
|
|
|
|
init() {}
|
|
|
|
func http1ConnectionReleased(_: HTTP1Connection) {
|
|
self.lock.withLock {
|
|
self._hitConnectionReleased += 1
|
|
}
|
|
}
|
|
|
|
func http1ConnectionClosed(_: HTTP1Connection) {
|
|
self.lock.withLock {
|
|
self._hitConnectionClosed += 1
|
|
}
|
|
}
|
|
}
|