Expire unused aliases and implications after 2 years of inactivity

test/models/forum_post_vote_test.rb

@@ -1,7 +0,0 @@
-require 'test_helper'
-
-class ForumPostVoteTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
-end

test/models/tag_relationship_retirement_service_test.rb

@@ -0,0 +1,75 @@
+require 'test_helper'
+
+class TagRelationshipRetirementServiceTest < ActiveSupport::TestCase
+  context ".forum_topic" do
+    subject { TagRelationshipRetirementService }
+
+    should "create a new topic if one doesn't already exist" do
+      assert_difference(-> { ForumTopic.count }) do
+        subject.forum_topic
+      end
+    end
+
+    should "create a new post if one doesn't already exist" do
+      assert_difference(-> { ForumPost.count }) do
+        subject.forum_topic
+      end
+    end
+  end
+
+  context ".each_candidate" do
+    subject { TagRelationshipRetirementService }
+
+    setup do
+      subject.stubs(:is_unused?).returns(true)
+
+      @user = FactoryBot.create(:user)
+      as_user do
+        @new_alias = FactoryBot.create(:tag_alias, antecedent_name: "aaa", consequent_name: "bbb")
+
+        travel_to(3.years.ago) do
+          @old_alias = FactoryBot.create(:tag_alias, antecedent_name: "ccc", consequent_name: "ddd")
+        end
+      end
+    end
+
+    should "find old tag relationships" do
+      subject.each_candidate(TagAlias) do |rel|
+        assert_equal(@old_alias, rel)
+      end
+    end
+
+    should "not find new tag relationships" do
+      subject.each_candidate(TagAlias) do |rel|
+        assert_not_equal(@new_alias, rel)
+      end
+    end
+  end
+
+  context ".is_unused?" do
+    subject { TagRelationshipRetirementService }
+
+    setup do
+      @user = FactoryBot.create(:user)
+
+      as_user do
+        @new_alias = FactoryBot.create(:tag_alias, antecedent_name: "aaa", consequent_name: "bbb")
+        @new_post = FactoryBot.create(:post, tag_string: "bbb")
+
+        travel_to(3.years.ago) do
+          @old_alias = FactoryBot.create(:tag_alias, antecedent_name: "ccc", consequent_name: "ddd")
+          @old_post = FactoryBot.create(:post, tag_string: "ddd")
+        end
+      end
+    end
+
+    should "return true if no recent post exists" do
+      assert(subject.is_unused?("ddd"))
+    end
+
+    should "return false if a recent post exists" do
+      refute(subject.is_unused?("bbb"))      
+    end
+  end
+end
+