Async Tests and Performance Measurement
Testing async functions with async/await and measuring with XCTMeasureOptions.
Testing Async Functions
Declare test methods as async throws to use await directly inside test bodies without extra boilerplate.
final class FetcherTests: XCTestCase {
func testFetchReturnsUser() async throws {
let user = try await UserService().fetchUser(id: 1)
XCTAssertEqual(user.name, "Alice")
}
}Async setUp and tearDown
Override setUp() async throws to perform async initialization before each test.
override func setUp() async throws {
try await super.setUp()
sut = await AsyncService.make()
}All lessons in this course
- XCTestCase Setup, Teardown and Test Methods
- XCTAssert Family and Throwing Assertions
- Protocol-Based Mocking and Dependency Injection
- Async Tests and Performance Measurement