Allow request logging using Rack::CommonLogger

features/logging_requests.feature

@@ -0,0 +1,13 @@
+Feature: Logging incoming requests
+  In order to check that Mimic is working properly or provide further debug information
+  As a developer
+  I want to be able to tell Mimic to log incoming requests
+
+  Scenario: Logging to STDOUT
+    Given I have a mimic specification with:
+      """
+      Mimic.mimic(:port => 11988, :log => $stdout).get("/some/path")
+      """
+    When I make an HTTP GET request to "http://localhost:11988/some/path"
+    Then I should see "GET /some/path HTTP/1.1" written to STDOUT
+

features/steps/logging_steps.rb

@@ -0,0 +1,3 @@
+Then /^I should see "([^"]*)" written to STDOUT$/ do |output|
+  TEST_STDOUT.tap { |io| io.rewind }.read.should include(output)
+end

features/support/env.rb

@@ -1,7 +1,15 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), *%w[.. .. lib]))
 
+TEST_STDOUT = StringIO.new
+
 Before do
   if test_proxy = ENV["MIMIC_TEST_PROXY"]
     HttpClient.use_proxy(test_proxy)
-  end  
+  end
+
+  $stdout = TEST_STDOUT
+end
+
+After do
+  $stdout = STDOUT
 end

lib/mimic.rb

@@ -10,13 +10,14 @@ module Mimic
     :hostname => 'localhost',
     :port => MIMIC_DEFAULT_PORT,
     :remote_configuration_path => nil,
-    :fork => true
+    :fork => true,
+    :log => nil
   }
 
   def self.mimic(options = {}, &block)
     options = MIMIC_DEFAULT_OPTIONS.merge(options)
 
-    host = FakeHost.new(options[:hostname], options[:remote_configuration_path]).tap do |host|
+    host = FakeHost.new(options).tap do |host|
       host.instance_eval(&block) if block_given?
       Server.instance.serve(host, options)
     end

lib/mimic/fake_host.rb

@@ -4,10 +4,12 @@
 module Mimic
   class FakeHost
     attr_reader :hostname, :url_map
+    attr_accessor :log
 
-    def initialize(hostname, remote_configuration_path = nil)
-      @hostname = hostname
-      @remote_configuration_path = remote_configuration_path
+    def initialize(options = {})
+      @hostname = options[:hostname]
+      @remote_configuration_path = options[:remote_configuration_path]
+      @log = options[:log]
       @imports = []
       clear      
       build_url_map!
@@ -50,6 +52,7 @@ def call(env)
     def clear
       @stubs = []
       @app = Sinatra.new
+      @app.use Rack::CommonLogger, self.log if self.log
       @app.not_found do
         [404, {}, ""]
       end

spec/fake_host_spec.rb

@@ -2,7 +2,7 @@
 
 describe "Mimic::FakeHost" do
   before do
-    @host = Mimic::FakeHost.new("www.example.com")
+    @host = Mimic::FakeHost.new(:hostname => "www.example.com")
   end
 
   it "should handle stubbed requests" do