|
| 1 | +//===----------------------------------------------------------------------===// |
| 2 | +// |
| 3 | +// This source file is part of the SwiftAWSLambdaRuntime open source project |
| 4 | +// |
| 5 | +// Copyright (c) 2025 Apple Inc. and the SwiftAWSLambdaRuntime project authors |
| 6 | +// Licensed under Apache License v2.0 |
| 7 | +// |
| 8 | +// See LICENSE.txt for license information |
| 9 | +// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors |
| 10 | +// |
| 11 | +// SPDX-License-Identifier: Apache-2.0 |
| 12 | +// |
| 13 | +//===----------------------------------------------------------------------===// |
| 14 | + |
| 15 | +import Logging |
| 16 | +import NIOCore |
| 17 | +import NIOPosix |
| 18 | +import Testing |
| 19 | + |
| 20 | +@testable import AWSLambdaRuntime |
| 21 | + |
| 22 | +extension LambdaRuntimeTests { |
| 23 | + |
| 24 | + @Test("Local server respects LOCAL_LAMBDA_PORT environment variable") |
| 25 | + func testLocalServerCustomPort() async throws { |
| 26 | + let customPort = 8080 |
| 27 | + |
| 28 | + // Set environment variable |
| 29 | + setenv("LOCAL_LAMBDA_PORT", "\(customPort)", 1) |
| 30 | + defer { unsetenv("LOCAL_LAMBDA_PORT") } |
| 31 | + |
| 32 | + let result = try? await withThrowingTaskGroup(of: Bool.self) { group in |
| 33 | + |
| 34 | + // start a local lambda + local server on custom port |
| 35 | + group.addTask { |
| 36 | + // Create a simple handler |
| 37 | + struct TestHandler: StreamingLambdaHandler { |
| 38 | + func handle( |
| 39 | + _ event: ByteBuffer, |
| 40 | + responseWriter: some LambdaResponseStreamWriter, |
| 41 | + context: LambdaContext |
| 42 | + ) async throws { |
| 43 | + try await responseWriter.write(ByteBuffer(string: "test")) |
| 44 | + try await responseWriter.finish() |
| 45 | + } |
| 46 | + } |
| 47 | + |
| 48 | + // create the Lambda Runtime |
| 49 | + let runtime = LambdaRuntime( |
| 50 | + handler: TestHandler(), |
| 51 | + logger: Logger(label: "test", factory: { _ in SwiftLogNoOpLogHandler() }) |
| 52 | + ) |
| 53 | + |
| 54 | + // Start runtime |
| 55 | + try await runtime._run() |
| 56 | + |
| 57 | + // we reach this line when the group is cancelled |
| 58 | + return false |
| 59 | + } |
| 60 | + |
| 61 | + // start a client to check if something responds on the custom port |
| 62 | + group.addTask { |
| 63 | + // Give server time to start |
| 64 | + try await Task.sleep(for: .milliseconds(100)) |
| 65 | + |
| 66 | + // Verify server is listening on custom port |
| 67 | + return try await isPortResponding(host: "127.0.0.1", port: customPort) |
| 68 | + } |
| 69 | + |
| 70 | + let first = try await group.next() |
| 71 | + group.cancelAll() |
| 72 | + return first ?? false |
| 73 | + |
| 74 | + } |
| 75 | + |
| 76 | + #expect(result == true) |
| 77 | + } |
| 78 | + |
| 79 | + private func isPortResponding(host: String, port: Int) async throws -> Bool { |
| 80 | + let group = MultiThreadedEventLoopGroup(numberOfThreads: 1) |
| 81 | + |
| 82 | + let bootstrap = ClientBootstrap(group: group) |
| 83 | + |
| 84 | + do { |
| 85 | + let channel = try await bootstrap.connect(host: host, port: port).get() |
| 86 | + try await channel.close().get() |
| 87 | + try await group.shutdownGracefully() |
| 88 | + return true |
| 89 | + } catch { |
| 90 | + try await group.shutdownGracefully() |
| 91 | + return false |
| 92 | + } |
| 93 | + } |
| 94 | +} |
0 commit comments