steipete

The Ultimate Swift Testing Playbook (2024 WWDC Edition, expanded with Apple docs from June 2025)

Updated with info from https://developer.apple.com/documentation/testing fetched via Firecrawl on June 7, 2025.

See also my blog: See also my blog post: https://steipete.me/posts/2025/migrating-700-tests-to-swift-testing

A hands-on, comprehensive guide for migrating from XCTest to Swift Testing and mastering the new framework. This playbook integrates the latest patterns and best practices from WWDC 2024 and official Apple documentation to make your tests more powerful, expressive, and maintainable.

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1. Migration & Tooling Baseline

aronreisx

To rename WSL Distros on Windows follow the steps:

1. Stop all instances of WSL
   On PowerShell run the command: wsl --shutdown

2. Open Registry Editor and go to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Lxss
   Each subfolder on Lxss represents a distro
    
3. Locate and rename the distro you want
   Inside each distro folder you have the DistributionName, change it and click ok

yoavniran

The Ultimate Unit Testing Cheat-sheet

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• Sinon Chai
• Chai
• Sinon

orlandoaleman

/*
 Macros.h by Orlando Aleman Ortiz <orlando@orlandoaleman.com>
*/

#define ApplicationDelegate                 [[UIApplication sharedApplication] delegate]
#define Bundle                              [NSBundle mainBundle]
#define DATE_COMPONENTS                     NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit
#define DateString                          [NSDateFormatter localizedStringFromDate:[NSDate date] dateStyle:NSDateFormatterShortStyle timeStyle:NSDateFormatterNoStyle]
#define FlushPool(p)                        [p drain]; p = [[NSAutoreleasePool alloc] init]
#define HexAlphaColor(c, a)                 [UIColor colorWithRed:((c>>16)&0xFF)/255.0 green:((c>>8)&0xFF)/255.0 blue:(c&0xFF)/255.0 alpha:a]

mikebob

-(void)closeFramingView
{
    NSFileManager *fileManager= [NSFileManager defaultManager]; 
    if(![fileManager fileExistsAtPath:USER_PICS_DIRECTORY])
        if(![fileManager createDirectoryAtPath:USER_PICS_DIRECTORY withIntermediateDirectories:YES attributes:nil error:NULL])
            NSLog(@"Error: Create folder failed %@", USER_PICS_DIRECTORY);    


    NSString  *pngPath = [NSString stringWithFormat:@"%@%@.png", 
                          USER_PICS_DIRECTORY, [UserPrefsHandler UserPicFileName]];

mikebob

//
//  SPXFrameScroller.h
//  SmartyPix
//
//  Created by Mike Bobiney on 8/23/11.
//  Copyright 2011 Tap Through Apps LLC. All rights reserved.
//

#import <Foundation/Foundation.h>