require 'spec_helper'
require 'nokogiri'
describe Rack::LiveReload do
let(:middleware) { described_class.new(app, options) }
let(:app) { stub }
subject { middleware }
its(:app) { should == app }
let(:env) { {} }
let(:options) { {} }
describe "livereload local uri" do
context 'does not exist' do
before do
stub_request(:any, 'localhost:35729/livereload.js').to_timeout
end
it { should use_vendored }
end
context 'exists' do
before do
stub_request(:any, 'localhost:35729/livereload.js')
end
it { should_not use_vendored }
end
context 'with custom port' do
let(:options) { {:live_reload_port => '12348'}}
context 'exists' do
before do
stub_request(:any, 'localhost:12348/livereload.js')
end
it { should_not use_vendored }
end
end
context 'specify vendored' do
let(:options) { { :source => :vendored } }
it { should use_vendored }
end
context 'specify LR' do
let(:options) { { :source => :livereload } }
it { should_not use_vendored }
end
end
context 'not text/html' do
let(:ret) { [ 200, { 'Content-Type' => 'image/png' }, [ '' ] ] }
before do
app.stubs(:call).with(env).returns(ret)
end
it 'should pass through' do
middleware.call(env).should == ret
end
end
context 'text/event-stram' do
let(:body) { [ '' ] }
let(:ret) { [ 200, { 'Content-Type' => 'text/event-stream' }, body ] }
before do
app.stubs(:call).with(env).returns(ret)
body.expects(:close).never
body.stubs(:respond_to?).with(:close).returns(true)
end
it 'should pass through' do
middleware.call(env).should == ret
end
end
context 'chunked response' do
let(:body) { [ '' ] }
let(:ret) { [ 200, { 'Transfer-Encoding' => 'chunked' }, body ] }
before do
app.stubs(:call).with(env).returns(ret)
body.expects(:close).never
body.stubs(:respond_to?).with(:close).returns(true)
end
it 'should pass through' do
middleware.call(env).should == ret
end
end
context 'unknown Content-Type' do
let(:ret) { [ 200, {}, [ 'hey ho' ] ] }
before do
app.stubs(:call).with(env).returns(ret)
end
it 'should not break' do
middleware.call(env).should_not raise_error(NoMethodError, /You have a nil object/)
end
end
context 'text/html' do
before do
app.stubs(:call).with(env).returns([ 200, { 'Content-Type' => 'text/html', 'Content-Length' => 0 }, [ page_html ] ])
middleware.stubs(:use_vendored?).returns(true)
end
let(:host) { 'host' }
let(:env) { { 'HTTP_HOST' => host } }
let(:ret) { middleware._call(env) }
let(:body) { ret.last.join }
let(:length) { ret[1]['Content-Length'] }
let(:page_html) { '' }
context 'vendored' do
it 'should add the vendored livereload js script tag' do
body.should include("script")
body.should include(described_class::LIVERELOAD_JS_PATH)
length.should == body.length.to_s
described_class::LIVERELOAD_JS_PATH.should_not include(host)
body.should include('swfobject')
body.should include('web_socket')
end
end
context 'at the top of the head tag' do
let(:page_html) { '' }
let(:body_dom) { Nokogiri::XML(body) }
it 'should add the livereload js script tag before all other script tags' do
body_dom.at_css("head")[:attribute].should == 'attribute'
body_dom.at_css("script:eq(4)")[:src].should include(described_class::LIVERELOAD_JS_PATH)
body_dom.at_css("script:last-child")[:insert].should == "before"
end
end
describe "LIVERELOAD_PORT value" do
let(:options) { {:live_reload_port => 12345 }}
it "sets the variable at the top of the file" do
body.should include 'RACK_LIVERELOAD_PORT = 12345'
end
end
context 'in header tags' do
let(:page_html) { "" }
let(:body_dom) { Nokogiri::XML(body) }
it 'should not add the livereload js' do
body_dom.at_css("header")[:class].should == 'hero'
body_dom.css('script').should be_empty
end
end
context 'not vendored' do
before do
middleware.stubs(:use_vendored?).returns(false)
end
it 'should add the LR livereload js script tag' do
body.should include("script")
body.should include(middleware.livereload_local_uri.gsub('localhost', 'host'))
end
end
context 'set options' do
let(:middleware) { described_class.new(app, :host => new_host, :port => port, :min_delay => min_delay, :max_delay => max_delay) }
let(:min_delay) { 5 }
let(:max_delay) { 10 }
let(:port) { 23 }
let(:new_host) { 'myhost' }
it 'should add the livereload.js script tag' do
body.should include("mindelay=#{min_delay}")
body.should include("maxdelay=#{max_delay}")
body.should include("port=#{port}")
body.should include("host=#{new_host}")
end
end
context 'force flash' do
let(:middleware) { described_class.new(app, :force_swf => true) }
it 'should not add the flash shim' do
body.should include('WEB_SOCKET_FORCE_FLASH')
body.should include('swfobject')
body.should include('web_socket')
end
end
context 'no flash' do
let(:middleware) { described_class.new(app, :no_swf => true) }
it 'should not add the flash shim' do
body.should_not include('swfobject')
body.should_not include('web_socket')
end
end
context 'no host at all' do
let(:env) { {} }
it 'should use localhost' do
body.should include('localhost')
end
end
context 'ignored' do
let(:options) { { :ignore => [ %r{file} ] } }
context 'not root' do
let(:env) { { 'PATH_INFO' => '/this/file' } }
it 'should have no change' do
body.should_not include('script')
end
end
context 'root' do
let(:env) { { 'PATH_INFO' => '/' } }
it 'should have script' do
body.should include('script')
end
end
end
end
context '/__rack/livereload.js' do
let(:env) { { 'PATH_INFO' => described_class::LIVERELOAD_JS_PATH } }
before do
middleware.expects(:deliver_file).returns(true)
end
it 'should return the js file' do
middleware._call(env).should be_true
end
end
describe '#ignored?' do
let(:path_info) { 'path info' }
context 'no ignore set' do
it { should_not be_ignored(path_info) }
end
context 'ignore set' do
let(:options) { { :ignore => [ %r{#{path_info}} ] } }
it { should be_ignored(path_info) }
end
end
describe '#bad_browser?' do
let(:user_agent) { described_class::BAD_USER_AGENTS.first.source }
it { should be_bad_browser(user_agent) }
end
describe 'head tag regex' do
let(:regex) { described_class::HEAD_TAG_REGEX }
subject { regex }
it { should be_kind_of(Regexp) }
it 'only picks a valid tag' do
regex.match("").to_s.should eq('')
regex.match("").to_s.should eq('')
regex.match("").to_s.should eq("")
end
it 'responds false when no head tag' do
regex.match("").should be_false
end
end
end