Refactor taggable tests to use let

spec/models/comment_spec.rb

@@ -119,13 +119,8 @@ describe Comment, type: :model do
   end
 
   describe "tags" do
-    let(:object) { build(:comment) }
-
-    before do
-      # shared_behaviors/taggable.rb is still using instance variables, so we need to define them here.
-      # Suggestion: refactor all specs using shared_behaviors/taggable.rb to use "let"
-      @object = object
+    it_should_behave_like "it is taggable" do
+      let(:object) { build(:comment) }
     end
-    it_should_behave_like "it is taggable"
   end
 end

spec/models/profile_spec.rb

@@ -245,30 +245,31 @@ describe Profile, :type => :model do
     end
   end
 
-  describe 'tags' do
-    before do
-      person = FactoryGirl.build(:person)
-      @object = person.profile
-    end
-    it 'allows 5 tags' do
-      @object.tag_string = '#one #two #three #four #five'
+  describe "tags" do
+    let(:object) { FactoryGirl.build(:person).profile }
 
-      @object.valid?
-      @object.errors.full_messages
+    it "allows 5 tags" do
+      object.tag_string = "#one #two #three #four #five"
 
-      expect(@object).to be_valid
+      object.valid?
+      object.errors.full_messages
+
+      expect(object).to be_valid
     end
-    it 'strips more than 5 tags' do
-      @object.tag_string = '#one #two #three #four #five #six'
-      @object.save
-      expect(@object.tags.count).to eq(5)
+
+    it "strips more than 5 tags" do
+      object.tag_string = "#one #two #three #four #five #six"
+      object.save
+      expect(object.tags.count).to eq(5)
     end
-    it 'should require tag name not be more than 255 characters long' do
-      @object.tag_string = "##{'a' * (255+1)}"
-      @object.save
-      expect(@object).not_to be_valid
+
+    it "should require tag name not be more than 255 characters long" do
+      object.tag_string = "##{'a' * (255 + 1)}"
+      object.save
+      expect(object).not_to be_valid
     end
-    it_should_behave_like 'it is taggable'
+
+    it_should_behave_like "it is taggable"
   end
 
   describe "#tombstone!" do

spec/models/status_message_spec.rb

@@ -171,10 +171,9 @@ describe StatusMessage, type: :model do
   end
 
   describe "tags" do
-    before do
-      @object = FactoryGirl.build(:status_message)
+    it_should_behave_like "it is taggable" do
+      let(:object) { build(:status_message) }
     end
-    it_should_behave_like "it is taggable"
 
     it "associates different-case tags to the same tag entry" do
       assert_equal ActsAsTaggableOn.force_lowercase, true

spec/shared_behaviors/taggable.rb

@@ -25,14 +25,14 @@ shared_examples_for "it is taggable" do
 
     before do
       @str = tag_list.map {|tag| "##{tag}" }.join(" ")
-      @object.send(@object.class.field_with_tags_setter, @str)
-      @object.build_tags
-      @object.save!
+      object.send(object.class.field_with_tags_setter, @str)
+      object.build_tags
+      object.save!
     end
 
     it "supports non-ascii characters" do
       tag_list.each do |tag|
-        expect(@object.tags.reload.map(&:name)).to include(tag)
+        expect(object.tags.reload.map(&:name)).to include(tag)
       end
     end
 
@@ -97,12 +97,12 @@ shared_examples_for "it is taggable" do
 
   describe '#build_tags' do
     it 'builds the tags' do
-      @object.send(@object.class.field_with_tags_setter, '#what')
-      @object.build_tags
-      expect(@object.tag_list).to eq(['what'])
+      object.send(object.class.field_with_tags_setter, "#what")
+      object.build_tags
+      expect(object.tag_list).to eq(["what"])
       expect {
-        @object.save
-      }.to change{@object.tags.count}.by(1)
+        object.save
+      }.to change { object.tags.count }.by(1)
     end
   end
 
@@ -111,8 +111,8 @@ shared_examples_for "it is taggable" do
       str = '#what #hey #that"smybike. #@hey ##boo # #THATWASMYBIKE #vöglein #hey#there #135440we #abc/23 ### #h!gh #ok? #see: #re:publica'
       arr = ['what', 'hey', 'that', 'THATWASMYBIKE', 'vöglein', '135440we', 'abc', 'h', 'ok', 'see', 're']
 
-      @object.send(@object.class.field_with_tags_setter, str)
-      expect(@object.tag_strings).to match_array(arr)
+      object.send(object.class.field_with_tags_setter, str)
+      expect(object.tag_strings).to match_array(arr)
     end
 
     it 'extracts tags despite surrounding text' do
@@ -154,9 +154,9 @@ shared_examples_for "it is taggable" do
         "\u202a#\u200eUSA\u202c" => 'USA'
       }
 
-      expected.each do |text,hashtag|
-        @object.send  @object.class.field_with_tags_setter, text
-        expect(@object.tag_strings).to eq([hashtag].compact)
+      expected.each do |text, hashtag|
+        object.send(object.class.field_with_tags_setter, text)
+        expect(object.tag_strings).to eq([hashtag].compact)
       end
     end
 
@@ -164,16 +164,16 @@ shared_examples_for "it is taggable" do
       str = '#what #what #what #whaaaaaaaaaat'
       arr = ['what','whaaaaaaaaaat']
 
-      @object.send(@object.class.field_with_tags_setter, str)
-      expect(@object.tag_strings).to match_array(arr)
+      object.send(object.class.field_with_tags_setter, str)
+      expect(object.tag_strings).to match_array(arr)
     end
 
     it 'is case insensitive' do
       str = '#what #wHaT #WHAT'
       arr = ['what']
 
-      @object.send(@object.class.field_with_tags_setter, str)
-      expect(@object.tag_strings).to match_array(arr)
+      object.send(object.class.field_with_tags_setter, str)
+      expect(object.tag_strings).to match_array(arr)
     end
   end
 end