203 validator custom message error causes test matcher error #210

	name: MiniTest
	on: [push, pull_request]
	jobs:
	minitest:
	strategy:
	fail-fast: false
	matrix:
	ruby:
	- '2.6'
	- '2.7'
	- '3.0'
	- '3.1'
	- '3.2'
	gemfile:
	- rails_6_0
	- rails_6_1
	- rails_7_0
	- rails_next
	image_processor:
	- vips
	- mini_magick
	exclude:
	# ruby 3.2 only supports rails 7.0+
	- ruby: '3.2'
	gemfile: rails_6_0
	- ruby: '3.2'
	gemfile: rails_6_1
	# ruby 3.1 only supports rails 7.0+
	- ruby: '3.1'
	gemfile: rails_6_0
	- ruby: '3.1'
	gemfile: rails_6_1
	# ruby 3.0 only supports rails 6.1+
	- ruby: '3.0'
	gemfile: rails_6_0
	# rails 7.0 only supports ruby 2.7+
	- ruby: '2.6'
	gemfile: rails_7_0
	# rails next only supports ruby 2.7+
	- ruby: '2.6'
	gemfile: rails_next
	runs-on: ubuntu-latest
	steps:
	- name: Install libvips
	run: sudo apt-get update && sudo apt-get -y install libvips

	- name: Check out code
	uses: actions/checkout@v2

	- name: Set BUNDLE_GEMFILE
	run: echo 'BUNDLE_GEMFILE=${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile' >> $GITHUB_ENV

	- name: Set IMAGE_PROCESSOR
	run: echo 'IMAGE_PROCESSOR=${{ matrix.image_processor }}' >> $GITHUB_ENV

	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true

	- name: Run tests
	run: bundle exec rake test

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