Add unit tests

heroes/tests.py

 from django.test import TestCase
 
+class HomePageTest(TestCase):
+	def test_home_page_returns_correct_html(self):
+		response = self.client.get('/')
+		self.assertTemplateUsed(response, 'home.html')
 
+class CloudViewTest(TestCase):
+	def test_cloud_page_returns_correct_html(self):
+		response = self.client.get('/hero/cloud')
+		self.assertTemplateUsed(response, 'detail_cloud.html')
 
+class JesterViewTest(TestCase):
+	def test_jester_page_returns_correct_html(self):
+		response = self.client.get('/hero/jester')
+		self.assertTemplateUsed(response, 'detail_jester.html')
 
+class SunfloweyViewTest(TestCase):
+	def test_sunflowey_page_returns_correct_html(self):
+		response = self.client.get('/hero/sunflowey')
+		self.assertTemplateUsed(response, 'detail_sunflowey.html')
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