added trash collection tests

features/collections.feature

@@ -6,7 +6,6 @@ Feature: collections that we can add problems to
   Background:
     Given I am signed in with uid "1234" and provider "github"
     And I have uploaded 'micro_quizzes.txt'
-
     And I am on the dashboard
 
   Scenario: create a new collection
@@ -31,4 +30,12 @@ Feature: collections that we can add problems to
     And I press "upload"
     Then I should see "There is an error in the file: Quiz with that name already exists in your list of collections. You probably didn't mean to upload the same quiz again. Try deleting the old collection and upload again if you really meant to do that"
 
+  Scenario: delete a collection
+    When I create a new collection 'apple'
+    Given I am looking at edit page regarding collection 'apple'
+    When I press the trash icon at 'apple'
+    Then I should be on the dashboard
+    And I should not see Collection 'apple' in the database
+
+
 

features/step_definitions/web_steps.rb

@@ -82,8 +82,24 @@ def with_scope(locator)
   }
 end
 
+Then /^(?:|I )should not see (.*) '(.*)' in the database$/ do |datatype, name_value| 
+  data_class = Object.const_get(datatype)
+  assert data_class.find_by_name(name_value).nil?
+end
+
 
+Given /^(?:|I )am looking at edit page regarding collection '(.*)'/ do |collection|
+  collection = Collection.find_by_name(collection).id
+  visit edit_collection_path(:id => collection)
+end
 
+When /^I press the trash icon at '(.*)'/ do |collection|
+  collection = Collection.find_by_name(collection)
+  visit edit_collection_path(:id => collection)
+  steps %Q{
+    Then I follow "trash_can_icon"
+  }
+end
 
 Given /^(?:|I )am on (.+)$/ do |page_name|
   visit path_to(page_name)