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require "tmpdir"
require "abstract_unit"
require "rails/app_loader"
class AppLoaderTest < ActiveSupport::TestCase
def loader
@loader ||= Class.new do
extend Rails::AppLoader
def self.exec_arguments
@exec_arguments
end
def self.exec(*args)
@exec_arguments = args
end
end
end
def write(filename, contents=nil)
FileUtils.mkdir_p(File.dirname(filename))
File.write(filename, contents)
end
def expects_exec(exe)
assert_equal [Rails::AppLoader::RUBY, exe], loader.exec_arguments
end
setup do
@tmp = Dir.mktmpdir("railties-rails-loader-test-suite")
@cwd = Dir.pwd
Dir.chdir(@tmp)
end
["bin", "script"].each do |script_dir|
exe = "#{script_dir}/rails"
test "is not in a Rails application if #{exe} is not found in the current or parent directories" do
def loader.find_executables; end
assert !loader.exec_app
end
test "is not in a Rails application if #{exe} exists but is a folder" do
FileUtils.mkdir_p(exe)
assert !loader.exec_app
end
["APP_PATH", "ENGINE_PATH"].each do |keyword|
test "is in a Rails application if #{exe} exists and contains #{keyword}" do
write exe, keyword
loader.exec_app
expects_exec exe
end
test "is not in a Rails application if #{exe} exists but doesn't contain #{keyword}" do
write exe
assert !loader.exec_app
end
test "is in a Rails application if parent directory has #{exe} containing #{keyword} and chdirs to the root directory" do
write "foo/bar/#{exe}"
write "foo/#{exe}", keyword
Dir.chdir("foo/bar")
loader.exec_app
expects_exec exe
# Compare the realpath in case either of them has symlinks.
#
# This happens in particular in Mac OS X, where @tmp starts
# with "/var", and Dir.pwd with "/private/var", due to a
# default system symlink var -> private/var.
assert_equal File.realpath("#@tmp/foo"), File.realpath(Dir.pwd)
end
end
end
teardown do
Dir.chdir(@cwd)
FileUtils.rm_rf(@tmp)
end
end
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