Merge pull request #826 from yunstanford/pytest-sanic

Pytest sanic

docs/sanic/extensions.md

@@ -23,3 +23,4 @@ A list of Sanic extensions created by the community.
 - [sanic-prometheus](https://github.com/dkruchinin/sanic-prometheus): Prometheus metrics for Sanic
 - [Sanic-RestPlus](https://github.com/ashleysommer/sanic-restplus): A port of Flask-RestPlus for Sanic. Full-featured REST API with SwaggerUI generation.
 - [sanic-transmute](https://github.com/yunstanford/sanic-transmute): A Sanic extension that generates APIs from python function and classes, and also generates Swagger UI/documentation automatically.
+- [pytest-sanic](https://github.com/yunstanford/pytest-sanic): A pytest plugin for Sanic. It helps you to test your code asynchronously.

docs/sanic/testing.md

@@ -57,3 +57,71 @@ def test_post_json_request_includes_data():
 More information about
 the available arguments to aiohttp can be found
 [in the documentation for ClientSession](https://aiohttp.readthedocs.io/en/stable/client_reference.html#client-session).
+
+
+# pytest-sanic
+
+[pytest-sanic](https://github.com/yunstanford/pytest-sanic) is a pytest plugin, it helps you to test your code asynchronously.
+Just write tests like,
+
+```python
+async def test_sanic_db_find_by_id(app):
+    """
+    Let's assume that, in db we have,
+        {
+            "id": "123",
+            "name": "Kobe Bryant",
+            "team": "Lakers",
+        }
+    """
+    doc = await app.db["players"].find_by_id("123")
+    assert doc.name == "Kobe Bryant"
+    assert doc.team == "Lakers"
+```
+
+[pytest-sanic](https://github.com/yunstanford/pytest-sanic) also provides some useful fixtures, like loop, unused_port,
+test_server, test_client.
+
+```python
+@pytest.yield_fixture
+def app():
+    app = Sanic("test_sanic_app")
+
+    @app.route("/test_get", methods=['GET'])
+    async def test_get(request):
+        return response.json({"GET": True})
+
+    @app.route("/test_post", methods=['POST'])
+    async def test_post(request):
+        return response.json({"POST": True})
+
+    yield app
+
+
+@pytest.fixture
+def test_cli(loop, app, test_client):
+    return loop.run_until_complete(test_client(app, protocol=WebSocketProtocol))
+
+
+#########
+# Tests #
+#########
+
+async def test_fixture_test_client_get(test_cli):
+    """
+    GET request
+    """
+    resp = await test_cli.get('/test_get')
+    assert resp.status == 200
+    resp_json = await resp.json()
+    assert resp_json == {"GET": True}
+
+async def test_fixture_test_client_post(test_cli):
+    """
+    POST request
+    """
+    resp = await test_cli.post('/test_post')
+    assert resp.status == 200
+    resp_json = await resp.json()
+    assert resp_json == {"POST": True}
+```