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guykogus avatar guykogus commented on June 3, 2024 1

@RomanPodymov if you want to already call await then modern XCTest allows you to do that.

final class XCTestTests: XCTestCase {
    func testAsyncTests() async {
        let getValue: () async -> Int = { 1 }
        let a = await getValue()
        let b = await getValue()
        XCTAssertEqual(a, b)
    }
}

However if you wanted to create the function it could work like this

public extension XCTestCase {
    func XCTAssertEqualAsync<T: Equatable>(
        _ expression1: @escaping () async -> T,
        _ expression2: @escaping () async -> T
    ) {
        let expectation = expectation(description: "XCTAssertEqualAsync")
        Task {
            let expression1Value = await expression1()
            let expression2Value = await expression2()
            XCTAssertEqual(expression1Value, expression2Value)
            expectation.fulfill()
        }
        wait(for: [expectation])
    }
}

and then you can just test it like this:

func testXCTAssertEqualAsync() async {
    let getValue: () async -> Int = { 1 }
    XCTAssertEqualAsync(getValue, getValue)
}

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guykogus avatar guykogus commented on June 3, 2024 1

@RomanPodymov we'd need to create a separate package for test extensions in the Sources folder, because we can't add it to the core package or it will fail to build for anyone using SPM. Do you want me to set it up? Is it really necessary? Why not just use what is already available, as I suggested?

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RomanPodymov avatar RomanPodymov commented on June 3, 2024

Hello @guykogus
Many thanks. But how can we share this function as a part of SwifterSwift?

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