From 47320adc1a67ceb4460ab99e98b889933f6bab3b Mon Sep 17 00:00:00 2001
From: Dhruv Kapadia <git@dkapadia.com>
Date: Wed, 21 Apr 2010 19:21:17 -0400
Subject: [PATCH] Adding necessary tests to question model

---
 spec/models/question_spec.rb | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 53 insertions(+), 2 deletions(-)

diff --git a/spec/models/question_spec.rb b/spec/models/question_spec.rb
index 0db269e..537e7d9 100644
--- a/spec/models/question_spec.rb
+++ b/spec/models/question_spec.rb
@@ -6,7 +6,11 @@ describe Question do
   it {should belong_to :site}
   it {should have_many :choices}
   it {should have_many :prompts}
+  it {should have_many :votes}
+  it {should have_many :densities}
+  it {should have_many :appearances}
   it {should validate_presence_of :site}
+  it {should validate_presence_of :creator}
   
   before(:each) do
     @aoi_clone = Factory.create(:user, :email => "pius@alum.mit.edu", :password => "password", :password_confirmation => "password", :id => 8)
@@ -16,8 +20,6 @@ describe Question do
       
     }
     
-    #    @item1 = Factory.create(:item, :data => "foo", :id => 1, :creator_id => 8)
-    #    @item2 = Factory.create(:item, :data => "bar", :id => 2, :creator_id => 8)
   end
 
   it "should create a new instance given valid attributes" do
@@ -37,6 +39,55 @@ describe Question do
     q = @aoi_clone.create_question("foobarbaz", {:name => 'foo'})
     q.prompts(true).size.should == 2
   end
+
+  it "should choose an active prompt randomly" do
+    q = @aoi_clone.create_question("foobarbaz", {:name => 'foo'})
+    prompt = q.picked_prompt
+    prompt.active?.should == true
+  end
+
+  it "should choose an active prompt using catchup algorithm" do 
+    q = @aoi_clone.create_question("foobarbaz", {:name => 'foo'})
+    prompt = q.catchup_choose_prompt
+    prompt.active?.should == true
+  end
+  
+  context "catchup algorithm" do 
+	  before(:all) do
+		  user = Factory.create(:user)
+		  @catchup_q = Factory.create(:aoi_question, :site => user, :creator => user.default_visitor)
+
+		  @catchup_q.it_should_autoactivate_ideas = true
+		  @catchup_q.save!
+
+		  100.times.each do |num|
+			  user.create_choice("visitor identifier", @catchup_q, {:data => num, :local_identifier => "exmaple"})
+		  end
+	  end
+	  it "should choose an active prompt using catchup algorithm on a large number of choices" do 
+		  @catchup_q.reload
+		  # Sanity check, 2 extra choices are autocreated when empty question created
+		  @catchup_q.choices.size.should == 102
+
+		  #the catchup algorithm depends on all prompts being generated automatically
+		  @catchup_q.prompts.size.should == 102 **2 - 102
+
+		  prompt = @catchup_q.catchup_choose_prompt
+		  prompt.active?.should == true
+	  end
+
+	  it "should have a normalized vector of weights to support the catchup algorithm" do
+		  weights = @catchup_q.catchup_prompts_weights
+		  sum = 0
+		  weights.each{|k,v| sum+=v}
+
+		  (sum - 1.0).abs.should < 0.000001
+	  end
+
+
+
+  end
+
   
   #q = @aoi_clone.create_question("foobarbaz", {:name => 'foo'})
 end
--
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