Allow APIGatewayV2Request to created for testing

[adamayoung]

Expected behavior

I'm trying to test a LambdaHandler

struct MyHandler: LambdaHandler {

    init(context: LambdaInitializationContext) async throws { }

    func handle(_ request: APIGatewayV2Request, context: LambdaContext) async throws -> APIGatewayV2Response {
        ...
    }

}

using Lambda.test(MyHandler.self, with: <APIGatewayV2Request>)

but I can't create an APIGatewayV2Request to test with because init isn't public.

Actual behavior

I would expect to be able to create an APIGatewayV2Request via init or some convenience method so that I can write tests for my LambdaHandler.

Steps to reproduce

1. Create a LambdaHandler whose Event is of type APIGatewayV2Request
2. Attempt to write a test using Lambda.test from the AWSLambdaTesting library.

If possible, minimal yet complete reproducer code (or URL to code)

Handler

import AWSLambdaEvents
import AWSLambdaRuntime
import Foundation

struct MyHandler: LambdaHandler {

    init(context: LambdaInitializationContext) async throws { }

    func handle(_ request: APIGatewayV2Request, context: LambdaContext) async throws -> APIGatewayV2Response {
        let response = APIGatewayV2Response(statusCode: .ok, body: "Hello World!")
        return response
    }

}

Test

import AWSLambdaEvents
import AWSLambdaRuntime
import AWSLambdaTesting
@testable import <MyLambda Target>
import XCTest

final class MyHandlerTests: XCTestCase {

    func testOKResponse() async throws {
        let request = APIGatewayV2Request() // Can't create this

        let response = try await Lambda.test(MyHandler.self, with: request)

        XCTAssertEqual(response.statusCode, .ok)
    }

}

SwiftAWSLambdaRuntime version/commit hash

1.0.0-alpha.2

Swift & OS version (output of swift --version && uname -a)

swift-driver version: 1.90.11.1 Apple Swift version 5.10 (swiftlang-5.10.0.13 clang-1500.3.9.4)
Target: arm64-apple-macosx14.0
Darwin xxx.local 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:12:49 PDT 2024; root:xnu-10063.101.17~1/RELEASE_ARM64_T6020 arm64

[sebsto]

@adamayoung the behaviour you're seeing is expected.
It is not valid to write

        let request = APIGatewayV2Request() // Can't create this

because it has public properties that are not optional.

You can create a request using a JSON decoder, see an example here

swift-aws-lambda-events/Tests/AWSLambdaEventsTests/APIGateway+V2Tests.swift

Line 153 in 32a1d03

let data = APIGatewayV2Tests.exampleGetEventBody.data(using: .utf8)!

or by passing all mandatory properties to the initializer.