require 'spec_helper'
require 'goliath/rack/validation/request_method'

describe Goliath::Rack::Validation::RequestMethod do
  before(:each) do
    @app_headers = {'Content-Type' => 'asdf'}
    @app_body = {'a' => 'b'}

    @app = mock('app').as_null_object
    @app.stub!(:call).and_return([200, @app_headers, @app_body])
  end

  it 'accepts an app' do
    lambda { Goliath::Rack::Validation::RequestMethod.new('my app') }.should_not raise_error
  end

  describe 'with defaults' do
    before(:each) do
      @env = {}
      @rm = Goliath::Rack::Validation::RequestMethod.new(@app, ['GET', 'POST'])
    end

    it 'raises error if method is invalid' do
      @env['REQUEST_METHOD'] = 'fubar'
      @rm.call(@env).should == [405, {'Allow' => 'GET, POST'}, {:error => "Invalid request method"}]
    end

    it 'allows valid methods through' do
      @env['REQUEST_METHOD'] = 'GET'
      @rm.call(@env).should == [200, @app_headers, @app_body]
    end

    it 'returns app status, headers and body' do
      @env['REQUEST_METHOD'] = 'POST'

      status, headers, body = @rm.call(@env)
      status.should == 200
      headers.should == @app_headers
      body.should == @app_body
    end
  end

  it 'accepts methods on initialize' do
    rm = Goliath::Rack::Validation::RequestMethod.new('my app', ['GET', 'DELETE', 'HEAD'])
    rm.methods.should == ['GET', 'DELETE', 'HEAD']
  end
  
  it 'accepts string method on initialize' do
    rm = Goliath::Rack::Validation::RequestMethod.new('my app', 'GET')
    rm.methods.should == ['GET']
  end
end