adds specs for poll state

app/models/poll/partial_result.rb

@@ -14,5 +14,4 @@ class Poll::PartialResult < ActiveRecord::Base
   scope :by_author, -> (author_id) { where(author_id: author_id) }
   scope :by_question, -> (question_id) { where(question_id: question_id) }
 
-
-end
+end

spec/models/poll/partial_result_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-describe Poll::PartialResult, type: :model do
+describe Poll::PartialResult do
 
   describe "validations" do
     it "validates that the answers are included in the Enquiry's list" do

spec/models/poll/poll_spec.rb

@@ -4,13 +4,38 @@ describe :poll do
 
   let(:poll) { build(:poll) }
 
-  it "should be valid" do
-    expect(poll).to be_valid
+  describe "validations" do
+    it "should be valid" do
+      expect(poll).to be_valid
+    end
+
+    it "should not be valid without a name" do
+      poll.name = nil
+      expect(poll).to_not be_valid
+    end
   end
 
-  it "should not be valid without a name" do
-    poll.name = nil
-    expect(poll).to_not be_valid
+  describe "#opened?" do
+    it "returns true only when it isn't too early or too late" do
+      expect(create(:poll, :incoming)).to_not be_current
+      expect(create(:poll, :expired)).to_not be_current
+      expect(create(:poll)).to be_current
+    end
   end
 
+  describe "#incoming?" do
+    it "returns true only when it is too early" do
+      expect(create(:poll, :incoming)).to be_incoming
+      expect(create(:poll, :expired)).to_not be_incoming
+      expect(create(:poll)).to_not be_incoming
+    end
+  end
+
+  describe "#expired?" do
+    it "returns true only when it is too late" do
+      expect(create(:poll, :incoming)).to_not be_expired
+      expect(create(:poll, :expired)).to be_expired
+      expect(create(:poll)).to_not be_expired
+    end
+  end
 end