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require 'tmpdir'
require 'pathname'
require 'abstract_unit'
require 'rails/app_rails_loader'
class AppRailsLoaderTest < ActiveSupport::TestCase
def write(filename, contents=nil)
FileUtils.mkdir_p(Pathname.new(filename).dirname)
File.write(filename, contents)
end
def expects_exec(exe)
Rails::AppRailsLoader.expects(:exec).with(Rails::AppRailsLoader::RUBY, exe)
end
def realpath(filename)
Pathname.new(filename).realpath
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
File.stubs(:exists?).with('bin/rails').returns(false)
File.stubs(:exists?).with('script/rails').returns(false)
assert !Rails::AppRailsLoader.exec_app_rails
end
['APP_PATH', 'ENGINE_PATH'].each do |keyword|
test "is in a Rails application if #{exe} exists and contains #{keyword}" do
write exe, keyword
expects_exec exe
Rails::AppRailsLoader.exec_app_rails
end
test "is not in a Rails application if #{exe} exists but doesn't contain #{keyword}" do
write exe
assert !Rails::AppRailsLoader.exec_app_rails
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')
expects_exec exe
Rails::AppRailsLoader.exec_app_rails
# 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 realpath("#@tmp/foo"), realpath(Dir.pwd)
end
end
end
teardown do
Dir.chdir(@cwd)
FileUtils.rm_rf(@tmp)
end
end
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