FIX: recover post by a non-staff user fails because the post is not unique. Uniqueness check shouldn't happen when recovering a deleted post.

spec/components/validators/post_validator_spec.rb

@@ -31,4 +31,38 @@ describe Validators::PostValidator do
     end
   end
 
+  describe "unique_post_validator" do
+    before do
+      SiteSetting.stubs(:unique_posts_mins).returns(5)
+    end
+
+    context "post is unique" do
+      before do
+        $redis.stubs(:exists).with(post.unique_post_key).returns(nil)
+      end
+
+      it "should not add an error" do
+        validator.unique_post_validator(post)
+        post.errors.count.should == 0
+      end
+    end
+
+    context "post is not unique" do
+      before do
+        $redis.stubs(:exists).with(post.unique_post_key).returns('1')
+      end
+
+      it "should add an error" do
+        validator.unique_post_validator(post)
+        expect(post.errors.count).to be > 0
+      end
+
+      it "should not add an error if post.skip_unique_check is true" do
+        post.skip_unique_check = true
+        validator.unique_post_validator(post)
+        post.errors.count.should == 0
+      end
+    end
+  end
+
 end