modernize-tests SKILL.md skillA

modernize-tests from artemnovichkov/xcode-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add artemnovichkov/xcode-skills/modernize-tests@git:20260909.9b8428c

Pins git:20260909.9b8428c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
artemnovichkov/xcode-skills
Path
skills/modernize-tests/SKILL.md
Versions recorded
2
Latest version
git:20260909.9b8428c, committed Sep 9, 2026
First version recorded
Aug 11, 2026
Size
9,464 bytes
Repository stars
67
License
none declared

Modernize test suites to use modern Swift Testing features or migrate from XCTest.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Modernize Tests

Test modernization refers to two potential actions: migrating from XCTest to Swift Testing, and updating existing Swift Testing tests to use recommended patterns.

XCTests should be migrated to Swift Testing when possible. However, not all XCTests can be migrated to Swift Testing.
- UI tests (those that use XCUIAutomation) cannot be written with Swift Testing, and must remain XCTests.
- XCTests that use the `measure { ... }` family of APIs for performance measurement cannot be migrated. However, other test methods within an XCTestCase that do not use XCTest performance APIs can be migrated.

## Migration Reference

### Imports

Replace `import XCTest` with `import Testing`. A file can import both if it contains mixed test content during incremental migration.

When removing `import XCTest`, check whether the file uses Foundation types (URL, CharacterSet, ProcessInfo, Data, etc.). XCTest re-exports Foundation, so add `import Foundation` if needed.

### Test Classes to Suites

Remove `XCTestCase` inheritance. Prefer structs over classes:

- `final class FoodTruckTests: XCTestCase { ... }` -> `struct FoodTruckTests { ... }`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add artemnovichkov/xcode-skills/modernize-tests@sha256:880f46b4b39ca7d8

The line at the top of this page pins the label git:20260909.9b8428c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_77ms6uoyil7tggqd.svg)](https://markdownregistry.com/a/art_77ms6uoyil7tggqd)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Aug 11, 2026 and Sep 9, 2026, about one every 29 days.

versioncommittedcommitsizeaudit
git:20260909.9b8428c latest2026-09-09 9b8428c 9,464 BA view · diff
git:20260811.879104d2026-08-11 879104d 9,464 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9464 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

artemnovichkov/xcode-skills · 67 stars · license none declared · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_77ms6uoyil7tggqd
GET https://markdownregistry.com/api/v1/resolve?ref=artemnovichkov/xcode-skills/modernize-tests
GET https://markdownregistry.com/api/v1/blob/880f46b4b39ca7d895f78857230e0082c299d481f74461ee977cd14f3315cfb3

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from artemnovichkov/xcode-skills

sync-xcode-skills SKILL.md skill
artemnovichkov/xcode-skills · .claude/skills/sync-xcode-skills/SKILL.md · Check and sync this repo's skills/ against the Claude plugin exported by an installed Xcode build (e.g. 27B52). Use…
git:20261030.4eff5d1 · audit A · 67 stars
accessibility-dynamic-type-specialist SKILL.md skill
artemnovichkov/xcode-skills · skills/accessibility-dynamic-type-specialist/SKILL.md · Audits views for compliance with Apple's Dynamic Type accessibility nutrition label. Checks that text scales with the…
git:20260909.9b8428c · audit A · 67 stars
accessibility-sufficient-contrast-specialist SKILL.md skill
artemnovichkov/xcode-skills · skills/accessibility-sufficient-contrast-specialist/SKILL.md · Audits views for compliance with Apple's Sufficient Contrast accessibility nutrition label (WCAG 2.1 contrast ratios)…
git:20260909.9b8428c · audit A · 67 stars
accessibility-voiceover-specialist SKILL.md skill
artemnovichkov/xcode-skills · skills/accessibility-voiceover-specialist/SKILL.md · Audits views for compliance with Apple's VoiceOver accessibility nutrition label. Checks that interactive elements have…
git:20260909.9b8428c · audit A · 67 stars
adopt-c-bounds-safety SKILL.md skill
artemnovichkov/xcode-skills · skills/adopt-c-bounds-safety/SKILL.md · Guide for the C -fbounds-safety language extension. Covers the language model, pointer annotations, adopting…
git:20260909.9b8428c · audit A · 67 stars
app-intents-specialist SKILL.md skill
artemnovichkov/xcode-skills · skills/app-intents-specialist/SKILL.md · Authoritative App Intents best practices from Apple. Consult for any App Intents best-practices or correctness review…
git:20260824.708f4c7 · audit A · 67 stars
app-intents-whats-new-27 SKILL.md skill
artemnovichkov/xcode-skills · skills/app-intents-whats-new-27/SKILL.md · New App Intents APIs, behaviors, and deprecations introduced in the iOS 26 (2025) and iOS 27 (2026) releases (and their…
git:20260909.876d18c · audit A · 67 stars
app-resizability SKILL.md skill
artemnovichkov/xcode-skills · skills/app-resizability/SKILL.md · Use when an app's layout must adapt to a window that changes size while the app runs, or when an app must support more…
git:20260918.42b9dd3 · audit A · 67 stars
audit-xcode-security-settings SKILL.md skill
artemnovichkov/xcode-skills · skills/audit-xcode-security-settings/SKILL.md · Audit and enable security-oriented Xcode build settings. Progressively enables compiler warnings, static analyzer…
git:20260909.9b8428c · audit A · 67 stars
building-document-based-swiftui-applications SKILL.md skill
artemnovichkov/xcode-skills · skills/building-document-based-swiftui-applications/SKILL.md · Authoritative guide for building and migrating document-based apps in SwiftUI using the Document protocol (iOS 27 and…
git:20260909.9b8428c · audit A · 67 stars
device-interaction SKILL.md skill
artemnovichkov/xcode-skills · skills/device-interaction/SKILL.md · Verify app behavior on device or simulator via screenshots, UI hierarchy, and touch interactions.
git:20260909.876d18c · audit A · 67 stars
swiftui-specialist SKILL.md skill
artemnovichkov/xcode-skills · skills/swiftui-specialist/SKILL.md · Authoritative SwiftUI best practices and performance guidance from Apple; supersedes prior training on these topics…
git:20260824.708f4c7 · audit A · 67 stars

Every file in artemnovichkov/xcode-skills

Other files named modernize-tests

modernize-tests SKILL.md skill
tartinerlabs/skills · xcode-skills/modernize-tests/SKILL.md · Modernize test suites to use modern Swift Testing features or migrate from XCTest.
git:20260713.ba4f7f8 · audit A · 8 stars

Browse by kind, by grade A, or by owner.