array_attr_problem_rails-4.1.rb

# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.1.8'
gem 'pg'
require 'active_record'
require 'minitest/autorun'
require 'logger'

# Ensure backward compatibility with Minitest 4
Minitest::Test = MiniTest::Unit::TestCase unless defined?(Minitest::Test)

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'postgresql', database: 'array_attr_test')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts do |t|
    t.string :favourite_numbers, array: true, default: []
  end
end

class Post < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_blank_string_into_array_column
    p = Post.new(favourite_numbers: '')
    p.save!

    assert p.valid?
  end
end

array_attr_problem_rails-4.2.rb

# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.2.0.rc2'
gem 'pg'
require 'active_record'
require 'minitest/autorun'
require 'logger'

# Ensure backward compatibility with Minitest 4
Minitest::Test = MiniTest::Unit::TestCase unless defined?(Minitest::Test)

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'postgresql', database: 'array_attr_test')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts do |t|
    t.string :favourite_numbers, array: true, default: []
  end
end

class Post < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_blank_string_into_array_column
    p = Post.new(favourite_numbers: '')
    p.save!

    assert p.valid?
  end
end