Redmine/vendor/plugins/engines/test/unit/load_path_test.rb

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# Tests in this file ensure that:
#
# * the application /app/[controllers|helpers|models] and /lib
# paths preceed the corresponding plugin paths
# * the plugin paths are added to $LOAD_PATH in the order in which plugins are
# loaded
require File.dirname(__FILE__) + '/../test_helper'
class LoadPathTest < Test::Unit::TestCase
def setup
@load_path = expand_paths($LOAD_PATH)
end
# Not sure if these test actually make sense as this now essentially tests
# Rails core functionality. On the other hand Engines relies on this to some
# extend so this will choke if something important changes in Rails.
# the application app/... and lib/ directories should appear
# before any plugin directories
def test_application_app_libs_should_precede_all_plugin_app_libs
types = %w(app/controllers app/helpers app/models lib)
types.each do |t|
app_index = load_path_index(File.join(RAILS_ROOT, t))
assert_not_nil app_index, "#{t} is missing in $LOAD_PATH"
Engines.plugins.each do |plugin|
first_plugin_index = load_path_index(File.join(plugin.directory, t))
assert(app_index < first_plugin_index) unless first_plugin_index.nil?
end
end
end
# the engine directories should appear in the proper order based on
# the order they were started
def test_plugin_dirs_should_appear_in_reverse_plugin_loading_order
app_paths = %w(app/controllers/ app app/models app/helpers lib)
app_paths.map { |p| File.join(RAILS_ROOT, p)}
plugin_paths = Engines.plugins.reverse.collect { |plugin| plugin.load_paths.reverse }.flatten
expected_paths = expand_paths(app_paths + plugin_paths)
# only look at those paths that are also present in expected_paths so
# the only difference would be in the order of the paths
actual_paths = @load_path & expected_paths
assert_equal expected_paths, actual_paths
end
protected
def expand_paths(paths)
paths.collect { |p| File.expand_path(p) }
end
def load_path_index(dir)
@load_path.index(File.expand_path(dir))
end
end