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diff --git a/spec/support/shared_examples/models/taskable_shared_examples.rb b/spec/support/shared_examples/models/taskable_shared_examples.rb
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+# frozen_string_literal: true
+
+# Specs for task state functionality for issues and merge requests.
+#
+# Requires a context containing:
+#   subject { Issue or MergeRequest }
+RSpec.shared_examples 'a Taskable' do
+  describe 'with multiple tasks' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        * [ ] Task 1
+        * [x] Task 2
+        * [x] Task 3
+        * [ ] Task 4
+        * [ ] Task 5
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('2 of')
+      expect(subject.task_status).to match('5 tasks completed')
+      expect(subject.task_status_short).to match('2/')
+      expect(subject.task_status_short).to match('5 tasks')
+    end
+
+    describe '#tasks?' do
+      it 'returns true when object has tasks' do
+        expect(subject.tasks?).to eq true
+      end
+
+      it 'returns false when object has no tasks' do
+        subject.description = 'Now I have no tasks'
+        expect(subject.tasks?).to eq false
+      end
+    end
+  end
+
+  describe 'with nested tasks' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        - [ ] Task a
+          - [x] Task a.1
+          - [ ] Task a.2
+        - [ ] Task b
+
+        1. [ ] Task 1
+          1. [ ] Task 1.1
+          1. [ ] Task 1.2
+        1. [x] Task 2
+          1. [x] Task 2.1
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('3 of')
+      expect(subject.task_status).to match('9 tasks completed')
+      expect(subject.task_status_short).to match('3/')
+      expect(subject.task_status_short).to match('9 tasks')
+    end
+  end
+
+  describe 'with an incomplete task' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        * [ ] Task 1
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('0 of')
+      expect(subject.task_status).to match('1 task completed')
+      expect(subject.task_status_short).to match('0/')
+      expect(subject.task_status_short).to match('1 task')
+    end
+  end
+
+  describe 'with tasks that are not formatted correctly' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        [ ] task 1
+        [ ] task 2
+
+        - [ ]task 1
+        -[ ] task 2
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('0 of')
+      expect(subject.task_status).to match('0 tasks completed')
+      expect(subject.task_status_short).to match('0/')
+      expect(subject.task_status_short).to match('0 task')
+    end
+  end
+
+  describe 'with a complete task' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        * [x] Task 1
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('1 of')
+      expect(subject.task_status).to match('1 task completed')
+      expect(subject.task_status_short).to match('1/')
+      expect(subject.task_status_short).to match('1 task')
+    end
+  end
+
+  describe 'with tasks in blockquotes' do
+    before do
+      subject.description = <<-EOT.strip_heredoc
+        > - [ ] Task a
+        > > - [x] Task a.1
+
+        >>>
+        1. [ ] Task 1
+        1. [x] Task 2
+        >>>
+      EOT
+    end
+
+    it 'returns the correct task status' do
+      expect(subject.task_status).to match('2 of')
+      expect(subject.task_status).to match('4 tasks completed')
+      expect(subject.task_status_short).to match('2/')
+      expect(subject.task_status_short).to match('4 tasks')
+    end
+  end
+end