Reformat with black

https://github.com/python/black

examples/tutorial/tests/test_auth.py

@@ -5,54 +5,55 @@ from flaskr.db import get_db
 
 def test_register(client, app):
     # test that viewing the page renders without template errors
-    assert client.get('/auth/register').status_code == 200
+    assert client.get("/auth/register").status_code == 200
 
     # test that successful registration redirects to the login page
-    response = client.post(
-        '/auth/register', data={'username': 'a', 'password': 'a'}
-    )
-    assert 'http://localhost/auth/login' == response.headers['Location']
+    response = client.post("/auth/register", data={"username": "a", "password": "a"})
+    assert "http://localhost/auth/login" == response.headers["Location"]
 
     # test that the user was inserted into the database
     with app.app_context():
-        assert get_db().execute(
-            "select * from user where username = 'a'",
-        ).fetchone() is not None
+        assert (
+            get_db().execute("select * from user where username = 'a'").fetchone()
+            is not None
+        )
 
 
-@pytest.mark.parametrize(('username', 'password', 'message'), (
-    ('', '', b'Username is required.'),
-    ('a', '', b'Password is required.'),
-    ('test', 'test', b'already registered'),
-))
+@pytest.mark.parametrize(
+    ("username", "password", "message"),
+    (
+        ("", "", b"Username is required."),
+        ("a", "", b"Password is required."),
+        ("test", "test", b"already registered"),
+    ),
+)
 def test_register_validate_input(client, username, password, message):
     response = client.post(
-        '/auth/register',
-        data={'username': username, 'password': password}
+        "/auth/register", data={"username": username, "password": password}
     )
     assert message in response.data
 
 
 def test_login(client, auth):
     # test that viewing the page renders without template errors
-    assert client.get('/auth/login').status_code == 200
+    assert client.get("/auth/login").status_code == 200
 
     # test that successful login redirects to the index page
     response = auth.login()
-    assert response.headers['Location'] == 'http://localhost/'
+    assert response.headers["Location"] == "http://localhost/"
 
     # login request set the user_id in the session
     # check that the user is loaded from the session
     with client:
-        client.get('/')
-        assert session['user_id'] == 1
-        assert g.user['username'] == 'test'
+        client.get("/")
+        assert session["user_id"] == 1
+        assert g.user["username"] == "test"
 
 
-@pytest.mark.parametrize(('username', 'password', 'message'), (
-    ('a', 'test', b'Incorrect username.'),
-    ('test', 'a', b'Incorrect password.'),
-))
+@pytest.mark.parametrize(
+    ("username", "password", "message"),
+    (("a", "test", b"Incorrect username."), ("test", "a", b"Incorrect password.")),
+)
 def test_login_validate_input(auth, username, password, message):
     response = auth.login(username, password)
     assert message in response.data
@@ -63,4 +64,4 @@ def test_logout(client, auth):
 
     with client:
         auth.logout()
-        assert 'user_id' not in session
+        assert "user_id" not in session