Swift library to more easily test async code

What's New

Version 1.0.1


What's Changed

  • Fixed an issue building for iOS in #3

Full Changelog: 1.0.0...1.0.1


Test Status

XCTAsync redefines many XCTAssert functions as async functions within asynchronous contexts.


Add XCTAsync as a dependency in your Package.swift file to start using it. Then, add import XCTAssert to any file you wish to use the library in.

Please check the releases for recommended versions.

dependencies: [
    .package(url: "https://github.com/mochidev/XCTAsync.git", .upToNextMajor(from: "1.0.0")),
targets: [
        name: "MyPackageTests",
        dependencies: [

What is XCTAsync?

XCTAsync is a collection of functions for testing asynchonous code:

import XCTest
import XCTAsync

func testAsyncMethods() async {
    await XCTAssertTrue(await asynchronousMethod())

Note that XCTAsync is only necessary for async methods, and will not be overloaded in synchronous contexts:

import XCTest
import XCTAsync

func testSyncMethods() {

However, if you are in an asynchronous test, you'll need to use the asynchronous variants for each assert:

import XCTest
import XCTAsync

func testSyncMethods() async {
    await XCTAssertTrue(synchronousMethod())


Contribution is welcome! Please take a look at the issues already available, or start a new issue to discuss a new feature. Although guarantees can't be made regarding feature requests, PRs that fit with the goals of the project and that have been discussed before hand are more than welcome!

Please make sure that all submissions have clean commit histories, are well documented, and thoroughly tested. Please rebase your PR before submission rather than merge in main. Linear histories are required.


  • Swift Tools 5.6.0
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Last updated: Wed Mar 15 2023 16:06:09 GMT-0500 (GMT-05:00)