activerecord/test/cases/invalid_connection_test.rb


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require "cases/helper"

class TestAdapterWithInvalidConnection < ActiveRecord::TestCase
  self.use_transactional_tests = false

  class Bird < ActiveRecord::Base
  end

  def setup
    # Can't just use current adapter; sqlite3 will create a database
    # file on the fly.
    Bird.establish_connection adapter: 'mysql', database: 'i_do_not_exist'
  end

  teardown do
    Bird.remove_connection
  end

  test "inspect on Model class does not raise" do
    assert_equal "#{Bird.name} (call '#{Bird.name}.connection' to establish a connection)", Bird.inspect
  end
end