TM-SGNL-iOS/SignalServiceKit/tests/XCTest+Thenable.swift
TeleMessage developers dde0620daf initial commit
2025-05-03 12:28:28 -07:00

82 lines
2.3 KiB
Swift

//
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
//
public import SignalServiceKit
public import XCTest
extension Thenable {
func expect(timeout: TimeInterval, file: StaticString = #filePath, line: UInt = #line) -> Value {
let expectation = XCTestExpectation(description: "\(file):\(line)")
var result: Value?
self.done {
result = $0
expectation.fulfill()
}.catch {
XCTFail("\($0)", file: file, line: line)
}
_ = XCTWaiter.wait(for: [expectation], timeout: timeout)
return try! XCTUnwrap(result, file: file, line: line)
}
}
extension XCTestCase {
@discardableResult
public func expect<T>(
_ promise: Promise<T>,
description: String,
timeout: TimeInterval
) -> Result<T, Error> {
let expectation = self.expectation(description: description)
var result: Result<T, Error>!
promise.observe {
result = $0
expectation.fulfill()
}
wait(for: [expectation], timeout: timeout)
return result
}
@discardableResult
public func expectSuccess<T>(
_ promise: Promise<T>,
description: String,
timeout: TimeInterval
) -> T {
let expectation = self.expectation(description: description)
var result: T!
promise.observe {
switch $0 {
case .success(let v):
result = v
case .failure(let e):
XCTFail("Expected success, got error: \(e)")
}
expectation.fulfill()
}
wait(for: [expectation], timeout: timeout)
return result
}
@discardableResult
public func expectFailure<T>(
_ promise: Promise<T>,
description: String,
timeout: TimeInterval
) -> Error {
let expectation = self.expectation(description: description)
var result: Error!
promise.observe {
switch $0 {
case .success(let v):
XCTFail("Expected failure, got success: \(v)")
case .failure(let e):
result = e
}
expectation.fulfill()
}
wait(for: [expectation], timeout: timeout)
return result
}
}