Add tests for healthcheck API

tests/test_web/__init__.py

@@ -0,0 +1,8 @@
+from aiohttp.test_utils import AioHTTPTestCase
+
+from actioner.web import get_server
+
+
+class BaseWebTestCase(AioHTTPTestCase):
+    async def get_application(self):
+        return get_server()

tests/test_web/test_healthcheck.py

@@ -0,0 +1,27 @@
+from aiohttp import BasicAuth
+from aiohttp.test_utils import unittest_run_loop
+
+from actioner.settings import BASIC_AUTH
+from tests.test_web import BaseWebTestCase
+
+
+class HealthcheckTestCase(BaseWebTestCase):
+    @unittest_run_loop
+    async def test_heartbeat_requires_auth(self):
+        response = await self.client.get("/healthcheck")
+        self.assertEqual(response.status, 401)
+        response = await self.client.get("/healthcheck", headers={
+            'Authorization': BasicAuth(*BASIC_AUTH).encode()
+        })
+        self.assertEqual(response.status, 200)
+
+    @unittest_run_loop
+    async def test_heartbeat_response(self):
+        response = await self.client.get("/healthcheck", headers={
+            'Authorization': BasicAuth(*BASIC_AUTH).encode()
+        })
+        self.assertEqual(response.status, 200)
+        self.assertEqual(await response.json(), {
+            'github': 'RealOrangeOne',
+            'todoist': 7471233
+        })