Writing tests (or deleting them, refactoring them, etc.) should always involve a cost/benefit calculation, even if it's a rough mental estimate that's not written down. In particular, that requires answering "How much effort will this test take me to write/debug?", "How much extra confidence will having this test give me?", "What level of confidence do I feel comfortable with?" and "Could I achieve higher confidence spending this effort on something else?".
The Accessibility Conformance Testing (ACT) Rules Format 1.0 specifies requirements for writing accessibility test rules. This includes test rules that are carried out fully-automatically, semi-automatically, and manually. By defining this common format, organizations are better able to document and share their testing procedures. This enables transparency and harmonization of testing methods, including methods implemented by accessibility test tools.
Quick reference tables, tools, and links for iOS developers. iOS Ref has iOS compatibility tables, a beautiful Swift cheatsheet, a hex code to UIColor converter, device screen resolution tables, and more.