rails--rails/railties/test/rails_info_test.rb

$:.unshift File.dirname(__FILE__) + "/../lib"
$:.unshift File.dirname(__FILE__) + "/../builtin/rails_info"
$:.unshift File.dirname(__FILE__) + "/../../activesupport/lib"

require 'test/unit'
require 'active_support'

unless defined?(Rails) && defined?(Rails::Info)
  module Rails
    class Info; end
  end
end

class InfoTest < Test::Unit::TestCase
  def setup
    Rails.send :remove_const, :Info
    silence_warnings { load 'rails/info.rb' }
  end

  def test_edge_rails_revision_not_set_when_svn_info_is_empty
    Rails::Info.property 'Test that this will not be defined' do
      Rails::Info.edge_rails_revision ''
    end
    assert !property_defined?('Test that this will not be defined')
  end

  def test_edge_rails_revision_extracted_from_svn_info
    Rails::Info.property 'Test Edge Rails revision' do
      Rails::Info.edge_rails_revision <<-EOS
      commit 420c4b3d8878156d04f45e47050ddc62ae00c68c
      Author: David Heinemeier Hansson <david@loudthinking.com>
      Date:   Sun Apr 13 17:33:27 2008 -0500

          Added Rails.public_path to control where HTML and assets are expected to be loaded from
EOS
    end

    assert_property 'Test Edge Rails revision', '420c4b3d8878156d04f45e47050ddc62ae00c68c'
  end

  def test_property_with_block_swallows_exceptions_and_ignores_property
    assert_nothing_raised do
      Rails::Info.module_eval do
        property('Bogus') {raise}
      end
    end
    assert !property_defined?('Bogus')
  end

  def test_property_with_string
    Rails::Info.module_eval do
      property 'Hello', 'World'
    end
    assert_property 'Hello', 'World'
  end

  def test_property_with_block
    Rails::Info.module_eval do
      property('Goodbye') {'World'}
    end
    assert_property 'Goodbye', 'World'
  end

  def test_component_version
    assert_property 'Active Support version', ActiveSupport::VERSION::STRING
  end

  def test_components_exist
    Rails::Info.components.each do |component|
      dir = File.dirname(__FILE__) + "/../../" + component.gsub('_', '')
      assert File.directory?(dir), "#{component.classify} does not exist"
    end
  end

  protected
    def svn_info=(info)
      Rails::Info.module_eval do
        class << self
          def svn_info
            info
          end
        end
      end
    end

    def properties
      Rails::Info.properties
    end

    def property_defined?(property_name)
      properties.names.include? property_name
    end

    def assert_property(property_name, value)
      raise "Property #{property_name.inspect} not defined" unless
        property_defined? property_name
      assert_equal value, properties.value_for(property_name)
    end
end