clean up samesite docs

tests/test_basic.py

@@ -319,7 +319,7 @@ def test_session_using_session_settings(app, client):
         SESSION_COOKIE_DOMAIN='.example.com',
         SESSION_COOKIE_HTTPONLY=False,
         SESSION_COOKIE_SECURE=True,
-        SESSION_COOKIE_SAMESITE='Strict',
+        SESSION_COOKIE_SAMESITE='Lax',
         SESSION_COOKIE_PATH='/'
     )
 
@@ -338,41 +338,32 @@ def test_session_using_session_settings(app, client):
 
 
 def test_session_using_samesite_attribute(app, client):
-    app.config.update(
-        SERVER_NAME='www.example.com:8080',
-        APPLICATION_ROOT='/test',
-        SESSION_COOKIE_DOMAIN='.example.com',
-        SESSION_COOKIE_HTTPONLY=False,
-        SESSION_COOKIE_SECURE=True,
-        SESSION_COOKIE_SAMESITE='anyvalue',
-        SESSION_COOKIE_PATH='/'
-    )
-
     @app.route('/')
     def index():
         flask.session['testing'] = 42
         return 'Hello World'
 
-    # assert excption when samesite is not set to 'Strict', 'Lax' or None
-    with pytest.raises(ValueError):
-        rv = client.get('/', 'http://www.example.com:8080/test/')
+    app.config.update(SESSION_COOKIE_SAMESITE='invalid')
+
+    with pytest.raises(ValueError):
+        client.get('/')
 
-    # assert the samesite flag is not set in the cookie, when set to None
     app.config.update(SESSION_COOKIE_SAMESITE=None)
-    rv = client.get('/', 'http://www.example.com:8080/test/')
+    rv = client.get('/')
     cookie = rv.headers['set-cookie'].lower()
     assert 'samesite' not in cookie
 
     app.config.update(SESSION_COOKIE_SAMESITE='Strict')
-    rv = client.get('/', 'http://www.example.com:8080/test/')
+    rv = client.get('/')
     cookie = rv.headers['set-cookie'].lower()
     assert 'samesite=strict' in cookie
 
     app.config.update(SESSION_COOKIE_SAMESITE='Lax')
-    rv = client.get('/', 'http://www.example.com:8080/test/')
+    rv = client.get('/')
     cookie = rv.headers['set-cookie'].lower()
     assert 'samesite=lax' in cookie
 
+
 def test_session_localhost_warning(recwarn, app, client):
     app.config.update(
         SERVER_NAME='localhost:5000',