Assert headers order-agnostically.

Author: samwgoldman

features/callbacks.feature

@@ -12,6 +12,7 @@ Feature: Document callbacks
             request = Net::HTTP::Post.new(uri.path)
             request.body = '{"message":"Something interesting happened!"}'
             request.add_field("Content-Type", "application/json")
+            request.add_field("User-Agent", "InterestingThingApp")
             http.request request
           end
           200
@@ -65,11 +66,9 @@ Feature: Document callbacks
     And   I navigate to "Receiving a callback when interesting things happen"
     Then  I should see the route is "POST /callback"
     And   I should see the following request headers:
-      """
-      Content-Type: application/json
-      Accept: */*
-      User-Agent: Ruby
-      """
+      | Content-Type | application/json    |
+      | Accept       | */*                 |
+      | User-Agent   | InterestingThingApp |
     And   I should see the following request body:
       """
       {

features/html_documentation.feature

@@ -71,10 +71,8 @@ Feature: Generate HTML documentation from test examples
     And   I navigate to "Greeting your favorite gem"
     Then  I should see the route is "GET /greetings?target=rspec_api_documentation"
     And   I should see the following request headers:
-      """
-      Host: example.org
-      Cookie:
-      """
+      | Host   | example.org |
+      | Cookie |             |
     And   I should see the following query parameters:
       """
       target: rspec_api_documentation
@@ -85,10 +83,8 @@ Feature: Generate HTML documentation from test examples
     And   I navigate to "Greeting your favorite gem"
     Then  I should see the response status is "200 OK"
     And   I should see the following response headers:
-      """
-      Content-Type: application/json
-      Content-Length: 35
-      """
+      | Content-Type   | application/json |
+      | Content-Length | 35               |
     And   I should see the following response body:
       """
       {

features/step_definitions/html_steps.rb

@@ -16,8 +16,11 @@
   names.zip(descriptions).should == table.rows
 end
 
-Then /^I should see the following (request|response) headers:$/ do |part, headers|
-  page.should have_css("pre.#{part}.headers", :text => headers)
+Then /^I should see the following (request|response) headers:$/ do |part, table|
+  text = page.find("pre.#{part}.headers").text
+  actual_headers = text.split("\n")
+  expected_headers = table.raw.map { |row| row.join(": ") }
+  actual_headers.should =~ expected_headers
 end
 
 Then /^I should see the route is "([^"]*)"$/ do |route|