require 'test_helper'

begin
  require 'em-http'
  require 'oauth/request_proxy/em_http_request'
rescue LoadError => e
  warn "! problem loading em-http, skipping these tests: #{e}"
  return
end


class EmHttpRequestProxyTest < Test::Unit::TestCase
  
  def test_request_proxy_works_with_simple_request
    proxy = create_request_proxy
    assert_equal({}, proxy.parameters)
  end
  
  def test_request_proxy_works_with_query_string_params
    assert_equal({"name" => ["Fred"]}, create_request_proxy(:query => "name=Fred").parameters)
    assert_equal({"name" => ["Fred"]}, create_request_proxy(:query => {:name => "Fred"}).parameters)
    proxy = create_request_proxy(:query => {:name => "Fred"}, :uri => "http://example.com/?awesome=true")
    assert_equal({"name" => ["Fred"], "awesome" => ["true"]}, proxy.parameters)
  end
  
  def test_request_proxy_works_with_post_body_params_with_correct_content_type
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "POST"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "POST", :body => "a=1"
    assert_equal({"a" => ["1"]}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "POST", :body => {"a" => 1}
    assert_equal({"a" => ["1"]}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "PUT"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "PUT", :body => "a=1"
    assert_equal({"a" => ["1"]}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "PUT", :body => {"a" => 1}
    assert_equal({"a" => ["1"]}, proxy.parameters)
  end
  
  def test_request_proxy_ignore_post_body_with_invalid_content_type
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "POST"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "POST", :body => "a=1"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "POST", :body => {"a" => 1}
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "PUT"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "PUT", :body => "a=1"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'text/plain'}, :method => "PUT", :body => {"a" => 1}
    assert_equal({}, proxy.parameters)
  end
  
  def test_request_proxy_ignores_post_body_with_invalid_method
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "DELETE"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "DELETE", :body => "a=1"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "DELETE", :body => {"a" => 1}
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "GET"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "GET", :body => "a=1"
    assert_equal({}, proxy.parameters)
    proxy = create_request_proxy :head => {'Content-Type' => 'application/x-www-form-urlencoded'}, :method => "GET", :body => {"a" => 1}
    assert_equal({}, proxy.parameters)
  end
  
  def test_request_proxy_works_with_argument_params
    assert_equal({"a" => ["1"]}, create_request_proxy(:proxy_options => {:parameters => {"a" => "1"}}).parameters)
  end
  
  def test_request_proxy_works_with_mixed_params
    proxy = create_request_proxy(:proxy_options => {:parameters => {"a" => "1"}},:query => {"c" => "1"}, :uri => "http://example.com/test?b=1")
    assert_equal({"a" => ["1"], "b" => ["1"], "c" => ["1"]}, proxy.parameters)
    proxy = create_request_proxy(:proxy_options => {:parameters => {"a" => "1"}}, :body => {"b" => "1"}, :query => {"c" => "1"},
      :uri => "http://example.com/test?d=1", :method => "POST", :head => {"Content-Type" => "application/x-www-form-urlencoded"})
    assert_equal({"a" => ["1"], "b" => ["1"], "c" => ["1"], "d" => ["1"]}, proxy.parameters)  
  end
  
  def test_request_has_the_correct_uri
    assert_equal "http://example.com/", create_request_proxy.uri
    assert_equal "http://example.com/?a=1", create_request_proxy(:query => "a=1").uri
    assert_equal "http://example.com/?a=1", create_request_proxy(:query => {"a" => "1"}).uri
    
  end
  
  def test_request_proxy_has_correct_method
    assert_equal "GET", create_request_proxy(:method => "GET").method
    assert_equal "PUT", create_request_proxy(:method => "PUT").method
    assert_equal "POST", create_request_proxy(:method => "POST").method
    assert_equal "DELETE", create_request_proxy(:method => "DELETE").method
  end
  
  protected
  
  def create_client(options = {})
    method         = options.delete(:method) || "GET"
    uri            = options.delete(:uri)    || "http://example.com/"
    client         = EventMachine::HttpClient.new("")
    client.uri     = URI.parse(uri)
    client.method  = method.to_s.upcase
    client.options = options
    client
  end
  
  def create_request_proxy(opts = {})
    arguments = opts.delete(:proxy_options) || {}
    OAuth::RequestProxy.proxy(create_client(opts), arguments)
  end
  
end