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Swift Test Tear Down Inspection for AppCode

Generating a tear down method

Motivation

For each test you write, an XCTestCase is allocated but never deallocated.

The best practice is to set all your instance variables to nil in the tear down method of your test.

This AppCode plugin inspects your tests and finds all places where one or more properties are not set to nil. It will also offer to fix the problem for you.

See the usages below on how to fix a single test file and how to apply the fix on all test files.

Installation

  • Open AppCode
  • Open AppCode → Preferences ⌘,
  • Go to Plugins
  • Click Browse repositories...
  • Search for 'Swift Test Tear Down Inspection for AppCode'
  • Click Install
  • Restart AppCode

Usages

Mid-workflow

With a Swift test file open, the class name will be highlighted with a warning if any properties are not set to nil in the tear down.

You can then ask AppCode to fix the problem for you.

  • Move the cursor to the class name
  • Press ⌥↩
  • Select 'Set properties to nil in tear down'

Batch find problems

For when you want to find all the problematic tests in the project.

  • Select Code -> Run inspection by name
  • Start typing 'Properties are not set to nil in tear down'
  • Select that inspection

Batch find and fix problems

For when you want to find and automatically fix all problematic tests in the project.

  • Select Code -> Code Cleanup
  • Select the scope.
  • Make sure the inspection is included in the Inspection Profile.
  • Click OK.

Fix problems before a commit

For when you want to automatically fix all problematic tests before a commit.

  • Select VCS -> Commit Changes
  • Stage your changes
  • Under 'Before Commit', select 'Cleanup'
  • Click Commit