diff --git a/spec/lib/banzai/filter/project_reference_filter_spec.rb b/spec/lib/banzai/filter/project_reference_filter_spec.rb
index e5b18ee2cdb..a57f4644866 100644
--- a/spec/lib/banzai/filter/project_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/project_reference_filter_spec.rb
@@ -12,8 +12,12 @@ describe Banzai::Filter::ProjectReferenceFilter do
   end
 
   let(:project)   { create(:project, :public) }
+  subject { project }
+  let(:subject_name) { "project" }
   let(:reference) { get_reference(project) }
 
+  it_behaves_like 'user reference or project reference'
+
   it 'ignores invalid projects' do
     exp = act = "Hey #{invalidate_reference(reference)}"
 
@@ -32,81 +36,11 @@ describe Banzai::Filter::ProjectReferenceFilter do
     end
   end
 
-  context 'mentioning a project' do
-    it_behaves_like 'a reference containing an element node'
-
-    it 'links to a Project' do
-      doc = reference_filter("Hey #{reference}")
-      expect(doc.css('a').first.attr('href')).to eq urls.project_url(project)
-    end
-
-    it 'links to a Project with a period' do
-      project = create(:project, name: 'alphA.Beta')
-
-      doc = reference_filter("Hey #{get_reference(project)}")
-      expect(doc.css('a').length).to eq 1
-    end
-
-    it 'links to a Project with an underscore' do
-      project = create(:project, name: 'ping_pong_king')
-
-      doc = reference_filter("Hey #{get_reference(project)}")
-      expect(doc.css('a').length).to eq 1
-    end
-
-    it 'links to a Project with different case-sensitivity' do
-      project = create(:project, name: 'RescueRanger')
-      reference = get_reference(project)
-
-      doc = reference_filter("Hey #{reference.upcase}")
-      expect(doc.css('a').length).to eq 1
-      expect(doc.css('a').text).to eq(reference)
-    end
-
-    it 'includes a data-project attribute' do
-      doc = reference_filter("Hey #{reference}")
-      link = doc.css('a').first
-
-      expect(link).to have_attribute('data-project')
-      expect(link.attr('data-project')).to eq project.id.to_s
-    end
-  end
-
   it 'includes default classes' do
     doc = reference_filter("Hey #{reference}")
     expect(doc.css('a').first.attr('class')).to eq 'gfm gfm-project has-tooltip'
   end
 
-  it 'supports an :only_path context' do
-    doc = reference_filter("Hey #{reference}", only_path: true)
-    link = doc.css('a').first.attr('href')
-
-    expect(link).not_to match %r(https?://)
-    expect(link).to eq urls.project_path(project)
-  end
-
-  context 'referencing a project in a link href' do
-    let(:reference) { %Q{<a href="#{get_reference(project)}">Project</a>} }
-
-    it 'links to a Project' do
-      doc = reference_filter("Hey #{reference}")
-      expect(doc.css('a').first.attr('href')).to eq urls.project_url(project)
-    end
-
-    it 'links with adjacent text' do
-      doc = reference_filter("Mention me (#{reference}.)")
-      expect(doc.to_html).to match(%r{\(<a.+>Project</a>\.\)})
-    end
-
-    it 'includes a data-project attribute' do
-      doc = reference_filter("Hey #{reference}")
-      link = doc.css('a').first
-
-      expect(link).to have_attribute('data-project')
-      expect(link.attr('data-project')).to eq project.id.to_s
-    end
-  end
-
   context 'in group context' do
     let(:group) { create(:group) }
     let(:project) { create(:project, group: group) }
diff --git a/spec/lib/banzai/filter/user_reference_filter_spec.rb b/spec/lib/banzai/filter/user_reference_filter_spec.rb
index 2f86a046d28..334d29a5368 100644
--- a/spec/lib/banzai/filter/user_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/user_reference_filter_spec.rb
@@ -3,9 +3,17 @@ require 'spec_helper'
 describe Banzai::Filter::UserReferenceFilter do
   include FilterSpecHelper
 
+  def get_reference(user)
+    user.to_reference
+  end
+
   let(:project)   { create(:project, :public) }
   let(:user)      { create(:user) }
-  let(:reference) { user.to_reference }
+  subject { user }
+  let(:subject_name) { "user" }
+  let(:reference) { get_reference(user) }
+
+  it_behaves_like 'user reference or project reference'
 
   it 'requires project context' do
     expect { described_class.call('') }.to raise_error(ArgumentError, /:project/)
@@ -66,45 +74,6 @@ describe Banzai::Filter::UserReferenceFilter do
     end
   end
 
-  context 'mentioning a user' do
-    it_behaves_like 'a reference containing an element node'
-
-    it 'links to a User' do
-      doc = reference_filter("Hey #{reference}")
-      expect(doc.css('a').first.attr('href')).to eq urls.user_url(user)
-    end
-
-    it 'links to a User with a period' do
-      user = create(:user, name: 'alphA.Beta')
-
-      doc = reference_filter("Hey #{user.to_reference}")
-      expect(doc.css('a').length).to eq 1
-    end
-
-    it 'links to a User with an underscore' do
-      user = create(:user, name: 'ping_pong_king')
-
-      doc = reference_filter("Hey #{user.to_reference}")
-      expect(doc.css('a').length).to eq 1
-    end
-
-    it 'links to a User with different case-sensitivity' do
-      user = create(:user, username: 'RescueRanger')
-
-      doc = reference_filter("Hey #{user.to_reference.upcase}")
-      expect(doc.css('a').length).to eq 1
-      expect(doc.css('a').text).to eq(user.to_reference)
-    end
-
-    it 'includes a data-user attribute' do
-      doc = reference_filter("Hey #{reference}")
-      link = doc.css('a').first
-
-      expect(link).to have_attribute('data-user')
-      expect(link.attr('data-user')).to eq user.namespace.owner_id.to_s
-    end
-  end
-
   context 'mentioning a group' do
     it_behaves_like 'a reference containing an element node'
 
@@ -154,36 +123,6 @@ describe Banzai::Filter::UserReferenceFilter do
     expect(doc.css('a').first.attr('class')).to eq 'gfm gfm-project_member has-tooltip'
   end
 
-  it 'supports an :only_path context' do
-    doc = reference_filter("Hey #{reference}", only_path: true)
-    link = doc.css('a').first.attr('href')
-
-    expect(link).not_to match %r(https?://)
-    expect(link).to eq urls.user_path(user)
-  end
-
-  context 'referencing a user in a link href' do
-    let(:reference) { %Q{<a href="#{user.to_reference}">User</a>} }
-
-    it 'links to a User' do
-      doc = reference_filter("Hey #{reference}")
-      expect(doc.css('a').first.attr('href')).to eq urls.user_url(user)
-    end
-
-    it 'links with adjacent text' do
-      doc = reference_filter("Mention me (#{reference}.)")
-      expect(doc.to_html).to match(%r{\(<a.+>User</a>\.\)})
-    end
-
-    it 'includes a data-user attribute' do
-      doc = reference_filter("Hey #{reference}")
-      link = doc.css('a').first
-
-      expect(link).to have_attribute('data-user')
-      expect(link.attr('data-user')).to eq user.namespace.owner_id.to_s
-    end
-  end
-
   context 'when a project is not specified' do
     let(:project) { nil }
 
@@ -227,7 +166,7 @@ describe Banzai::Filter::UserReferenceFilter do
     end
 
     it 'supports mentioning a single user' do
-      reference = group_member.to_reference
+      reference = get_reference(group_member)
       doc = reference_filter("Hey #{reference}", context)
 
       expect(doc.css('a').first.attr('href')).to eq urls.user_url(group_member)
@@ -243,7 +182,7 @@ describe Banzai::Filter::UserReferenceFilter do
 
   describe '#namespaces' do
     it 'returns a Hash containing all Namespaces' do
-      document = Nokogiri::HTML.fragment("<p>#{user.to_reference}</p>")
+      document = Nokogiri::HTML.fragment("<p>#{get_reference(user)}</p>")
       filter = described_class.new(document, project: project)
       ns = user.namespace
 
@@ -253,7 +192,7 @@ describe Banzai::Filter::UserReferenceFilter do
 
   describe '#usernames' do
     it 'returns the usernames mentioned in a document' do
-      document = Nokogiri::HTML.fragment("<p>#{user.to_reference}</p>")
+      document = Nokogiri::HTML.fragment("<p>#{get_reference(user)}</p>")
       filter = described_class.new(document, project: project)
 
       expect(filter.usernames).to eq([user.username])
diff --git a/spec/support/banzai/reference_filter_shared_examples.rb b/spec/support/banzai/reference_filter_shared_examples.rb
index eb5da662ab5..476d80f3a93 100644
--- a/spec/support/banzai/reference_filter_shared_examples.rb
+++ b/spec/support/banzai/reference_filter_shared_examples.rb
@@ -11,3 +11,76 @@ shared_examples 'a reference containing an element node' do
     expect(doc.children.first.inner_html).to eq(inner_html)
   end
 end
+
+# Requires a reference, subject and subject_name:
+#   subject { create(:user) }
+#   let(:reference) { subject.to_reference }
+#   let(:subject_name) { 'user' }
+shared_examples 'user reference or project reference' do
+  shared_examples 'it contains a data- attribute' do
+    it 'includes a data- attribute' do
+      doc = reference_filter("Hey #{reference}")
+      link = doc.css('a').first
+
+      expect(link).to have_attribute("data-#{subject_name}")
+      expect(link.attr("data-#{subject_name}")).to eq subject.id.to_s
+    end
+  end
+
+  context 'mentioning a resource' do
+    it_behaves_like 'a reference containing an element node'
+    it_behaves_like 'it contains a data- attribute'
+
+    it "links to a resource" do
+      doc = reference_filter("Hey #{reference}")
+      expect(doc.css('a').first.attr('href')).to eq urls.send("#{subject_name}_url", subject)
+    end
+
+    it 'links to a resource with a period' do
+      subject = create(subject_name.to_sym, name: 'alphA.Beta')
+
+      doc = reference_filter("Hey #{get_reference(subject)}")
+      expect(doc.css('a').length).to eq 1
+    end
+
+    it 'links to a resource with an underscore' do
+      subject = create(subject_name.to_sym, name: 'ping_pong_king')
+
+      doc = reference_filter("Hey #{get_reference(subject)}")
+      expect(doc.css('a').length).to eq 1
+    end
+
+    it 'links to a resource with different case-sensitivity' do
+      subject = create(subject_name.to_sym, name: 'RescueRanger')
+      reference = get_reference(subject)
+
+      doc = reference_filter("Hey #{reference.upcase}")
+      expect(doc.css('a').length).to eq 1
+      expect(doc.css('a').text).to eq(reference)
+    end
+  end
+
+  it 'supports an :only_path context' do
+    doc = reference_filter("Hey #{reference}", only_path: true)
+    link = doc.css('a').first.attr('href')
+
+    expect(link).not_to match %r(https?://)
+    expect(link).to eq urls.send "#{subject_name}_path", subject
+  end
+
+  context 'referencing a resource in a link href' do
+    let(:reference) { %Q{<a href="#{get_reference(subject)}">Some text</a>} }
+
+    it_behaves_like 'it contains a data- attribute'
+
+    it 'links to the resource' do
+      doc = reference_filter("Hey #{reference}")
+      expect(doc.css('a').first.attr('href')).to eq urls.send "#{subject_name}_url", subject
+    end
+
+    it 'links with adjacent text' do
+      doc = reference_filter("Mention me (#{reference}.)")
+      expect(doc.to_html).to match(%r{\(<a.+>Some text</a>\.\)})
+    end
+  end
+end