Fix failing tests. Replace ruby to 2.1.1 in travis. Update travis config

.travis.yml

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - 2.1.0
+  - 2.1.1
 branches:
   only:
     - master
@@ -15,6 +15,5 @@ before_script:
   - cp config/database.yml.example config/database.yml
   - cp config/config.yml.example config/config.yml
   - RAILS_ENV=test bundle exec rake db:migrate --trace
-  - bundle exec rake db:test:prepare
 script:
-  - bundle exec rake spec
+  - bundle exec rspec --color --format documentation

app/models/person.rb

@@ -6,7 +6,7 @@ class Person < ActiveRecord::Base
 
   belongs_to :user, :inverse_of => :person
   has_many :event_people, :dependent => :destroy
-  has_many :events, :through => :event_people, :uniq => true
+  has_many :events, -> { uniq }, :through => :event_people
   has_many :registrations, :dependent => :destroy
   has_many :votes, :dependent => :destroy
   has_many :voted_events, :through => :votes, :source => :events

spec/models/conference_spec.rb

@@ -1,60 +1,72 @@
 require 'spec_helper'
 
 describe Conference do
-  before do
-    @conference = create(:conference)
-  end
 
+  let(:subject) { create(:conference) }
 
   describe "#registration_open?" do
+
     context "closed registration" do
+
       it "#registration_open? is false" do
-  	    expect(@conference.registration_open?).to be false
+        expect(subject.registration_open?).to be false
       end
+
     end
 
     context "open registration" do
+
       before do
-    	@conference.registration_start_date = Date.today - 1
+        subject.registration_start_date = Date.today - 1
-    	@conference.registration_end_date = Date.today + 7
+        subject.registration_end_date = Date.today + 7
       end
+
       it "#registration_open? is true" do
-  		expect(@conference.registration_open?).to be true
+        expect(subject.registration_open?).to be true
       end
+
     end
+
   end
 
   describe "#cfp_open?" do
+
     context "closed cfp" do
+
       it "#cfp_open? is false" do
-  	    expect(@conference.cfp_open?).to be false
+        expect(subject.cfp_open?).to be false
       end
+
     end
 
     context "open cfp" do
+
       before do
-  	  	@cfp = create(:call_for_papers)
+        subject.call_for_papers = create(:call_for_papers)
-  	  	@conference.call_for_papers = @cfp
       end
+
       it "#registration_open? is true" do
-  		expect(@conference.cfp_open?).to be true
+        expect(subject.cfp_open?).to be true
       end
+
     end
+
   end
 
   describe "#user_registered?" do
-  	before do
+
-  		@user = create(:user)
+    let(:user) { create(:user) }
-  	end
+
     context "user not registered" do
       it "#user_registered? is false" do
-  	    expect(@conference.user_registered? @user).to be false
+        expect(subject.user_registered? user).to be false
       end
     end
 
     context "user registered" do
       pending "isn't tested yet"
     end
+
   end
  
 end