change background by let since model tests do not know about background

spec/models/debate_spec.rb

@@ -1,88 +1,80 @@
 require 'rails_helper'
 
 describe Debate do
-
-  background do
-    @debate = build(:debate)
-  end
+  let(:debate) { build(:debate) }
 
   it "should be valid" do
-    expect(@debate).to be_valid
+    expect(debate).to be_valid
   end
 
   it "should not be valid without an author" do
-    @debate.author = nil
-    expect(@debate).to_not be_valid
+    debate.author = nil
+    expect(debate).to_not be_valid
   end
 
   it "should not be valid without a title" do
-    @debate.title = nil
-    expect(@debate).to_not be_valid
+    debate.title = nil
+    expect(debate).to_not be_valid
   end
 
   describe "#description" do
     it "should be mandatory" do
-      @debate.description = nil
-      expect(@debate).to_not be_valid
+      debate.description = nil
+      expect(debate).to_not be_valid
     end
 
     it "should be sanitized" do
-      @debate.description = "<script>alert('danger');</script>"
-      @debate.valid?
-      expect(@debate.description).to eq("alert('danger');")
+      debate.description = "<script>alert('danger');</script>"
+      debate.valid?
+      expect(debate.description).to eq("alert('danger');")
     end
 
     it "should be html_safe" do
-      @debate.description = "<script>alert('danger');</script>"
-      expect(@debate.description).to be_html_safe
+      debate.description = "<script>alert('danger');</script>"
+      expect(debate.description).to be_html_safe
     end
   end
 
   it "should sanitize the tag list" do
-    @debate.tag_list = "user_id=1"
-    @debate.valid?
-    expect(@debate.tag_list).to eq(['user_id1'])
+    debate.tag_list = "user_id=1"
+    debate.valid?
+    expect(debate.tag_list).to eq(['user_id1'])
   end
 
   it "should not be valid without accepting terms of service" do
-    @debate.terms_of_service = nil
-    expect(@debate).to_not be_valid
+    debate.terms_of_service = nil
+    expect(debate).to_not be_valid
   end
 
   describe "#editable?" do
-    background do
-      @debate = create(:debate)
-    end
+    let(:debate) { create(:debate) }
 
     it "should be true if debate has no votes yet" do
-      expect(@debate.total_votes).to eq(0)
-      expect(@debate.editable?).to be true
+      expect(debate.total_votes).to eq(0)
+      expect(debate.editable?).to be true
     end
 
     it "should be false if debate has votes" do
-      create(:vote, votable: @debate)
-      expect(@debate.total_votes).to eq(1)
-      expect(@debate.editable?).to be false
+      create(:vote, votable: debate)
+      expect(debate.total_votes).to eq(1)
+      expect(debate.editable?).to be false
     end
   end
 
   describe "#editable_by?" do
-    background do
-      @debate = create(:debate)
-    end
+    let(:debate) { create(:debate) }
 
     it "should be true if user is the author and debate is editable" do
-      expect(@debate.editable_by?(@debate.author)).to be true
+      expect(debate.editable_by?(debate.author)).to be true
     end
 
     it "should be false if debate is not editable" do
-      create(:vote, votable: @debate)
-      expect(@debate.editable_by?(@debate.author)).to be false
+      create(:vote, votable: debate)
+      expect(debate.editable_by?(debate.author)).to be false
     end
 
     it "should be false if user is not the author" do
-      expect(@debate.editable_by?(create(:user))).to be false
-
+      expect(debate.editable_by?(create(:user))).to be false
     end
   end
 

spec/models/user_spec.rb

@@ -3,24 +3,22 @@ require 'rails_helper'
 describe User do
 
   describe "#votes_on_debates" do
-    background do
-      @user = create(:user)
-    end
+    let(:user) { create(:user) }
 
     it "returns {} if no debate" do
-      expect(@user.votes_on_debates()).to eq({})
-      expect(@user.votes_on_debates([])).to eq({})
-      expect(@user.votes_on_debates([nil, nil])).to eq({})
+      expect(user.votes_on_debates()).to eq({})
+      expect(user.votes_on_debates([])).to eq({})
+      expect(user.votes_on_debates([nil, nil])).to eq({})
     end
 
     it "returns a hash of debates ids and votes" do
       debate1 = create(:debate)
       debate2 = create(:debate)
       debate3 = create(:debate)
-      create(:vote, voter: @user, votable: debate1, vote_flag: true)
-      create(:vote, voter: @user, votable: debate3, vote_flag: false)
+      create(:vote, voter: user, votable: debate1, vote_flag: true)
+      create(:vote, voter: user, votable: debate3, vote_flag: false)
 
-      voted = @user.votes_on_debates([debate1.id, debate2.id, debate3.id])
+      voted = user.votes_on_debates([debate1.id, debate2.id, debate3.id])
 
       expect(voted[debate1.id]).to eq(true)
       expect(voted[debate2.id]).to eq(nil)