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# This file borrowed directly from Rails
require 'test/unit'
require 'fileutils'
# Mock out what we need from AR::Base
module ActiveRecord
class Base
class << self
attr_accessor :pluralize_table_names, :timestamped_migrations
end
self.pluralize_table_names = true
self.timestamped_migrations = true
end
module ConnectionAdapters
class Column
attr_reader :name, :default, :type, :limit, :null, :sql_type, :precision, :scale
def initialize(name, default, sql_type = nil)
@name = name
@default = default
@type = @sql_type = sql_type
end
def human_name
@name.humanize
end
end
end
end
# Mock up necessities from ActionView
module ActionView
module Helpers
module ActionRecordHelper; end
class InstanceTag; end
end
end
# Set RAILS_ROOT appropriately fixture generation
tmp_dir = "#{File.dirname(__FILE__)}/../fixtures/tmp"
if defined? RAILS_ROOT
RAILS_ROOT.replace tmp_dir
else
RAILS_ROOT = tmp_dir
end
FileUtils.mkdir_p RAILS_ROOT
#$LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../../lib"
require 'initializer'
# Mocks out the configuration
module Rails
def self.configuration
Rails::Configuration.new
end
end
require 'rails_generator'
class GeneratorTestCase < Test::Unit::TestCase
include FileUtils
def setup
ActiveRecord::Base.pluralize_table_names = true
mkdir_p "#{RAILS_ROOT}/app/views/layouts"
mkdir_p "#{RAILS_ROOT}/config"
mkdir_p "#{RAILS_ROOT}/db"
mkdir_p "#{RAILS_ROOT}/test/fixtures"
mkdir_p "#{RAILS_ROOT}/public/stylesheets"
File.open("#{RAILS_ROOT}/config/routes.rb", 'w') do |f|
f << "ActionController::Routing::Routes.draw do |map|\n\nend"
end
end
def teardown
rm_rf "#{RAILS_ROOT}/app"
rm_rf "#{RAILS_ROOT}/test"
rm_rf "#{RAILS_ROOT}/config"
rm_rf "#{RAILS_ROOT}/db"
rm_rf "#{RAILS_ROOT}/public"
end
def test_truth
# don't complain, test/unit
end
# Instantiates the Generator.
def build_generator(name, params)
Rails::Generator::Base.instance(name, params)
end
# Runs the +create+ command (like the command line does).
def run_generator(name, params)
silence_generator do
# puts "gen params: #{params.inspect}"
build_generator(name, params).command(:create).invoke!
end
end
# Silences the logger temporarily and returns the output as a String.
def silence_generator
logger_original = Rails::Generator::Base.logger
myout = StringIO.new
Rails::Generator::Base.logger = Rails::Generator::SimpleLogger.new(myout)
yield if block_given?
Rails::Generator::Base.logger = logger_original
myout.string
end
# Asserts that the given controller was generated.
# It takes a name or symbol without the <tt>_controller</tt> part and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_controller_for(name, parent = "ApplicationController")
assert_generated_class "app/controllers/#{name.to_s.underscore}_controller", parent do |body|
yield body if block_given?
end
end
# Asserts that the given model was generated.
# It takes a name or symbol and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_model_for(name, parent = "ActiveRecord::Base")
assert_generated_class "app/models/#{name.to_s.underscore}", parent do |body|
yield body if block_given?
end
end
# Asserts that the given helper was generated.
# It takes a name or symbol without the <tt>_helper</tt> part.
# The contents of the module source file is passed to a block.
def assert_generated_helper_for(name)
assert_generated_module "app/helpers/#{name.to_s.underscore}_helper" do |body|
yield body if block_given?
end
end
# Asserts that the given functional test was generated.
# It takes a name or symbol without the <tt>_controller_test</tt> part and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_functional_test_for(name, parent = "ActionController::TestCase")
assert_generated_class "test/functional/#{name.to_s.underscore}_controller_test",parent do |body|
yield body if block_given?
end
end
# Asserts that the given helper test test was generated.
# It takes a name or symbol without the <tt>_helper_test</tt> part and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_helper_test_for(name, parent = "ActionView::TestCase")
path = "test/unit/helpers/#{name.to_s.underscore}_helper_test"
# Have to pass the path without the "test/" part so that class_name_from_path will return a correct result
class_name = class_name_from_path(path.gsub(/^test\//, ''))
assert_generated_class path,parent,class_name do |body|
yield body if block_given?
end
end
# Asserts that the given unit test was generated.
# It takes a name or symbol without the <tt>_test</tt> part and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_unit_test_for(name, parent = "ActiveSupport::TestCase")
assert_generated_class "test/unit/#{name.to_s.underscore}_test", parent do |body|
yield body if block_given?
end
end
# Asserts that the given file was generated.
# The contents of the file is passed to a block.
def assert_generated_file(path)
assert_file_exists(path)
File.open("#{RAILS_ROOT}/#{path}") do |f|
yield f.read if block_given?
end
end
# asserts that the given file exists
def assert_file_exists(path)
assert File.exist?("#{RAILS_ROOT}/#{path}"),
"The file '#{RAILS_ROOT}/#{path}' should exist"
end
# Asserts that the given class source file was generated.
# It takes a path without the <tt>.rb</tt> part and an optional super class.
# The contents of the class source file is passed to a block.
def assert_generated_class(path, parent = nil, class_name = class_name_from_path(path))
assert_generated_file("#{path}.rb") do |body|
assert_match /class #{class_name}#{parent.nil? ? '':" < #{parent}"}/, body, "the file '#{path}.rb' should be a class"
yield body if block_given?
end
end
def class_name_from_path(path)
# FIXME: Sucky way to detect namespaced classes
if path.split('/').size > 3
path =~ /\/?(\d+_)?(\w+)\/(\w+)$/
"#{$2.camelize}::#{$3.camelize}"
else
path =~ /\/?(\d+_)?(\w+)$/
$2.camelize
end
end
# Asserts that the given module source file was generated.
# It takes a path without the <tt>.rb</tt> part.
# The contents of the class source file is passed to a block.
def assert_generated_module(path)
# FIXME: Sucky way to detect namespaced modules
if path.split('/').size > 3
path =~ /\/?(\w+)\/(\w+)$/
module_name = "#{$1.camelize}::#{$2.camelize}"
else
path =~ /\/?(\w+)$/
module_name = $1.camelize
end
assert_generated_file("#{path}.rb") do |body|
assert_match /module #{module_name}/, body, "the file '#{path}.rb' should be a module"
yield body if block_given?
end
end
# Asserts that the given CSS stylesheet file was generated.
# It takes a path without the <tt>.css</tt> part.
# The contents of the stylesheet source file is passed to a block.
def assert_generated_stylesheet(path)
assert_generated_file("public/stylesheets/#{path}.css") do |body|
yield body if block_given?
end
end
# Asserts that the given YAML file was generated.
# It takes a path without the <tt>.yml</tt> part.
# The parsed YAML tree is passed to a block.
def assert_generated_yaml(path)
assert_generated_file("#{path}.yml") do |body|
yaml = YAML.load(body)
assert yaml, 'YAML data missing'
yield yaml if block_given?
end
end
# Asserts that the given fixtures YAML file was generated.
# It takes a fixture name without the <tt>.yml</tt> part.
# The parsed YAML tree is passed to a block.
def assert_generated_fixtures_for(name)
assert_generated_yaml "test/fixtures/#{name.to_s.underscore}" do |yaml|
yield yaml if block_given?
end
end
# Asserts that the given views were generated.
# It takes a controller name and a list of views (including extensions).
# The body of each view is passed to a block.
def assert_generated_views_for(name, *actions)
actions.each do |action|
assert_generated_file("app/views/#{name.to_s.underscore}/#{action}") do |body|
yield body if block_given?
end
end
end
def assert_generated_migration(name, parent = "ActiveRecord::Migration")
file = Dir.glob("#{RAILS_ROOT}/db/migrate/*_#{name.to_s.underscore}.rb").first
file = file.match(/db\/migrate\/[0-9]+_\w+/).to_s
assert_generated_class file, parent do |body|
assert_match /timestamps/, body, "should have timestamps defined"
yield body if block_given?
end
end
# Asserts that the given migration file was not generated.
# It takes the name of the migration as a parameter.
def assert_skipped_migration(name)
migration_file = "#{RAILS_ROOT}/db/migrate/001_#{name.to_s.underscore}.rb"
assert !File.exist?(migration_file), "should not create migration #{migration_file}"
end
# Asserts that the given resource was added to the routes.
def assert_added_route_for(name)
assert_generated_file("config/routes.rb") do |body|
assert_match /map.resources :#{name.to_s.underscore}/, body,
"should add route for :#{name.to_s.underscore}"
end
end
# Asserts that the given methods are defined in the body.
# This does assume standard rails code conventions with regards to the source code.
# The body of each individual method is passed to a block.
def assert_has_method(body, *methods)
methods.each do |name|
assert body =~ /^ def #{name}(\(.+\))?\n((\n| .*\n)*) end/, "should have method #{name}"
yield(name, $2) if block_given?
end
end
# Asserts that the given column is defined in the migration.
def assert_generated_column(body, name, type)
assert_match /t\.#{type.to_s} :#{name.to_s}/, body, "should have column #{name.to_s} defined"
end
# Asserts that the given column's index has been defined in the migration
def assert_generated_index(body, table_name, column_name)
assert_match /add_index \:#{table_name.to_s}, :#{column_name.to_s}_id/, body, "should have index on column #{column_name} defined"
end
end
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