Add status endpoint (#36)

Closes #34

src/humulus/home.py

@@ -14,7 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from flask import Blueprint, redirect, url_for
+from flask import Blueprint, redirect, url_for, request, jsonify
+
+from humulus.couch import get_db
 
 bp = Blueprint('home', __name__)
 
@@ -23,3 +25,13 @@ bp = Blueprint('home', __name__)
 def index():
     """Renders the homepage template"""
     return redirect(url_for('recipes.index'))
+
+
+@bp.route('/status')
+def status():
+    if request.args.get('couch', default=False):
+        if get_db().exists():
+            return jsonify({'ping': 'ok', 'couch': 'ok'}), 200
+        else:
+            return jsonify({'ping': 'ok', 'couch': 'not_exist'}), 500
+    return jsonify({'ping': 'ok'}), 200

tests/test_home.py

@@ -16,3 +16,27 @@
 def test_home(client):
     response = client.get('/')
     assert response.status_code == 302
+
+
+def test_status(client, monkeypatch):
+    class MockDBTrue:
+        def exists(self):
+            return True
+
+    class MockDBFalse:
+        def exists(self):
+            return False
+
+    response = client.get('/status')
+    assert response.status_code == 200
+    assert response.get_json() == {'ping': 'ok'}
+
+    monkeypatch.setattr('humulus.home.get_db', MockDBTrue)
+    response = client.get('/status?couch=y')
+    assert response.status_code == 200
+    assert response.get_json() == {'ping': 'ok', 'couch': 'ok'}
+
+    monkeypatch.setattr('humulus.home.get_db', MockDBFalse)
+    response = client.get('/status?couch=y')
+    assert response.status_code == 500
+    assert response.get_json() == {'ping': 'ok', 'couch': 'not_exist'}