mirror of https://github.com/pallets/flask.git
821 lines
22 KiB
Python
821 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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"""
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tests.blueprints
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~~~~~~~~~~~~~~~~
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Blueprints (and currently modules)
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:copyright: (c) 2015 by Armin Ronacher.
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:license: BSD, see LICENSE for more details.
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"""
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import pytest
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import flask
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from flask._compat import text_type
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from werkzeug.http import parse_cache_control_header
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from jinja2 import TemplateNotFound
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def test_blueprint_specific_error_handling(app, client):
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frontend = flask.Blueprint('frontend', __name__)
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backend = flask.Blueprint('backend', __name__)
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sideend = flask.Blueprint('sideend', __name__)
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@frontend.errorhandler(403)
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def frontend_forbidden(e):
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return 'frontend says no', 403
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@frontend.route('/frontend-no')
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def frontend_no():
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flask.abort(403)
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@backend.errorhandler(403)
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def backend_forbidden(e):
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return 'backend says no', 403
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@backend.route('/backend-no')
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def backend_no():
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flask.abort(403)
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@sideend.route('/what-is-a-sideend')
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def sideend_no():
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flask.abort(403)
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app.register_blueprint(frontend)
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app.register_blueprint(backend)
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app.register_blueprint(sideend)
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@app.errorhandler(403)
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def app_forbidden(e):
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return 'application itself says no', 403
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assert client.get('/frontend-no').data == b'frontend says no'
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assert client.get('/backend-no').data == b'backend says no'
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assert client.get('/what-is-a-sideend').data == b'application itself says no'
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def test_blueprint_specific_user_error_handling(app, client):
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class MyDecoratorException(Exception):
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pass
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class MyFunctionException(Exception):
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pass
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blue = flask.Blueprint('blue', __name__)
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@blue.errorhandler(MyDecoratorException)
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def my_decorator_exception_handler(e):
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assert isinstance(e, MyDecoratorException)
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return 'boom'
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def my_function_exception_handler(e):
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assert isinstance(e, MyFunctionException)
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return 'bam'
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blue.register_error_handler(MyFunctionException, my_function_exception_handler)
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@blue.route('/decorator')
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def blue_deco_test():
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raise MyDecoratorException()
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@blue.route('/function')
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def blue_func_test():
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raise MyFunctionException()
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app.register_blueprint(blue)
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assert client.get('/decorator').data == b'boom'
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assert client.get('/function').data == b'bam'
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def test_blueprint_app_error_handling(app, client):
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errors = flask.Blueprint('errors', __name__)
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@errors.app_errorhandler(403)
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def forbidden_handler(e):
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return 'you shall not pass', 403
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@app.route('/forbidden')
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def app_forbidden():
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flask.abort(403)
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forbidden_bp = flask.Blueprint('forbidden_bp', __name__)
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@forbidden_bp.route('/nope')
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def bp_forbidden():
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flask.abort(403)
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app.register_blueprint(errors)
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app.register_blueprint(forbidden_bp)
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assert client.get('/forbidden').data == b'you shall not pass'
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assert client.get('/nope').data == b'you shall not pass'
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def test_blueprint_url_definitions(app, client):
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bp = flask.Blueprint('test', __name__)
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@bp.route('/foo', defaults={'baz': 42})
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def foo(bar, baz):
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return '%s/%d' % (bar, baz)
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@bp.route('/bar')
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def bar(bar):
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return text_type(bar)
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app.register_blueprint(bp, url_prefix='/1', url_defaults={'bar': 23})
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app.register_blueprint(bp, url_prefix='/2', url_defaults={'bar': 19})
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assert client.get('/1/foo').data == b'23/42'
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assert client.get('/2/foo').data == b'19/42'
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assert client.get('/1/bar').data == b'23'
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assert client.get('/2/bar').data == b'19'
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def test_blueprint_url_processors(app, client):
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bp = flask.Blueprint('frontend', __name__, url_prefix='/<lang_code>')
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@bp.url_defaults
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def add_language_code(endpoint, values):
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values.setdefault('lang_code', flask.g.lang_code)
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@bp.url_value_preprocessor
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def pull_lang_code(endpoint, values):
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flask.g.lang_code = values.pop('lang_code')
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@bp.route('/')
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def index():
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return flask.url_for('.about')
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@bp.route('/about')
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def about():
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return flask.url_for('.index')
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app.register_blueprint(bp)
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assert client.get('/de/').data == b'/de/about'
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assert client.get('/de/about').data == b'/de/'
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def test_templates_and_static(test_apps):
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from blueprintapp import app
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client = app.test_client()
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rv = client.get('/')
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assert rv.data == b'Hello from the Frontend'
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rv = client.get('/admin/')
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assert rv.data == b'Hello from the Admin'
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rv = client.get('/admin/index2')
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assert rv.data == b'Hello from the Admin'
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rv = client.get('/admin/static/test.txt')
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assert rv.data.strip() == b'Admin File'
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rv.close()
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rv = client.get('/admin/static/css/test.css')
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assert rv.data.strip() == b'/* nested file */'
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rv.close()
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# try/finally, in case other tests use this app for Blueprint tests.
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max_age_default = app.config['SEND_FILE_MAX_AGE_DEFAULT']
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try:
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expected_max_age = 3600
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if app.config['SEND_FILE_MAX_AGE_DEFAULT'] == expected_max_age:
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expected_max_age = 7200
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = expected_max_age
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rv = client.get('/admin/static/css/test.css')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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assert cc.max_age == expected_max_age
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rv.close()
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finally:
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = max_age_default
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with app.test_request_context():
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assert flask.url_for('admin.static', filename='test.txt') == '/admin/static/test.txt'
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with app.test_request_context():
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with pytest.raises(TemplateNotFound) as e:
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flask.render_template('missing.html')
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assert e.value.name == 'missing.html'
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with flask.Flask(__name__).test_request_context():
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assert flask.render_template('nested/nested.txt') == 'I\'m nested'
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def test_default_static_cache_timeout(app):
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class MyBlueprint(flask.Blueprint):
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def get_send_file_max_age(self, filename):
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return 100
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blueprint = MyBlueprint('blueprint', __name__, static_folder='static')
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app.register_blueprint(blueprint)
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# try/finally, in case other tests use this app for Blueprint tests.
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max_age_default = app.config['SEND_FILE_MAX_AGE_DEFAULT']
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try:
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with app.test_request_context():
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unexpected_max_age = 3600
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if app.config['SEND_FILE_MAX_AGE_DEFAULT'] == unexpected_max_age:
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unexpected_max_age = 7200
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = unexpected_max_age
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rv = blueprint.send_static_file('index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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assert cc.max_age == 100
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rv.close()
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finally:
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = max_age_default
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def test_templates_list(test_apps):
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from blueprintapp import app
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templates = sorted(app.jinja_env.list_templates())
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assert templates == ['admin/index.html', 'frontend/index.html']
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def test_dotted_names(app, client):
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frontend = flask.Blueprint('myapp.frontend', __name__)
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backend = flask.Blueprint('myapp.backend', __name__)
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@frontend.route('/fe')
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def frontend_index():
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return flask.url_for('myapp.backend.backend_index')
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@frontend.route('/fe2')
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def frontend_page2():
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return flask.url_for('.frontend_index')
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@backend.route('/be')
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def backend_index():
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return flask.url_for('myapp.frontend.frontend_index')
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app.register_blueprint(frontend)
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app.register_blueprint(backend)
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assert client.get('/fe').data.strip() == b'/be'
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assert client.get('/fe2').data.strip() == b'/fe'
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assert client.get('/be').data.strip() == b'/fe'
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def test_dotted_names_from_app(app, client):
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test = flask.Blueprint('test', __name__)
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@app.route('/')
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def app_index():
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return flask.url_for('test.index')
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@test.route('/test/')
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def index():
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return flask.url_for('app_index')
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app.register_blueprint(test)
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rv = client.get('/')
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assert rv.data == b'/test/'
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def test_empty_url_defaults(app, client):
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bp = flask.Blueprint('bp', __name__)
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@bp.route('/', defaults={'page': 1})
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@bp.route('/page/<int:page>')
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def something(page):
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return str(page)
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app.register_blueprint(bp)
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assert client.get('/').data == b'1'
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assert client.get('/page/2').data == b'2'
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def test_route_decorator_custom_endpoint(app, client):
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bp = flask.Blueprint('bp', __name__)
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@bp.route('/foo')
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def foo():
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return flask.request.endpoint
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@bp.route('/bar', endpoint='bar')
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def foo_bar():
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return flask.request.endpoint
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@bp.route('/bar/123', endpoint='123')
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def foo_bar_foo():
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return flask.request.endpoint
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@bp.route('/bar/foo')
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def bar_foo():
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return flask.request.endpoint
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app.register_blueprint(bp, url_prefix='/py')
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@app.route('/')
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def index():
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return flask.request.endpoint
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assert client.get('/').data == b'index'
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assert client.get('/py/foo').data == b'bp.foo'
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assert client.get('/py/bar').data == b'bp.bar'
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assert client.get('/py/bar/123').data == b'bp.123'
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assert client.get('/py/bar/foo').data == b'bp.bar_foo'
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def test_route_decorator_custom_endpoint_with_dots(app, client):
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bp = flask.Blueprint('bp', __name__)
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@bp.route('/foo')
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def foo():
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return flask.request.endpoint
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try:
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@bp.route('/bar', endpoint='bar.bar')
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def foo_bar():
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return flask.request.endpoint
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except AssertionError:
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pass
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else:
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raise AssertionError('expected AssertionError not raised')
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try:
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@bp.route('/bar/123', endpoint='bar.123')
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def foo_bar_foo():
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return flask.request.endpoint
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except AssertionError:
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pass
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else:
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raise AssertionError('expected AssertionError not raised')
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def foo_foo_foo():
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pass
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pytest.raises(
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AssertionError,
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lambda: bp.add_url_rule(
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'/bar/123', endpoint='bar.123', view_func=foo_foo_foo
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)
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)
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pytest.raises(
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AssertionError,
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bp.route('/bar/123', endpoint='bar.123'),
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lambda: None
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)
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app.register_blueprint(bp, url_prefix='/py')
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assert client.get('/py/foo').data == b'bp.foo'
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# The rule's didn't actually made it through
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rv = client.get('/py/bar')
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assert rv.status_code == 404
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rv = client.get('/py/bar/123')
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assert rv.status_code == 404
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def test_endpoint_decorator(app, client):
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from werkzeug.routing import Rule
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app.url_map.add(Rule('/foo', endpoint='bar'))
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bp = flask.Blueprint('bp', __name__)
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@bp.endpoint('bar')
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def foobar():
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return flask.request.endpoint
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app.register_blueprint(bp, url_prefix='/bp_prefix')
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assert client.get('/foo').data == b'bar'
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assert client.get('/bp_prefix/bar').status_code == 404
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def test_template_filter(app):
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_filter()
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def my_reverse(s):
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return s[::-1]
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app.register_blueprint(bp, url_prefix='/py')
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assert 'my_reverse' in app.jinja_env.filters.keys()
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assert app.jinja_env.filters['my_reverse'] == my_reverse
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assert app.jinja_env.filters['my_reverse']('abcd') == 'dcba'
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def test_add_template_filter(app):
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bp = flask.Blueprint('bp', __name__)
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def my_reverse(s):
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return s[::-1]
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bp.add_app_template_filter(my_reverse)
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app.register_blueprint(bp, url_prefix='/py')
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assert 'my_reverse' in app.jinja_env.filters.keys()
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assert app.jinja_env.filters['my_reverse'] == my_reverse
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assert app.jinja_env.filters['my_reverse']('abcd') == 'dcba'
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def test_template_filter_with_name(app):
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_filter('strrev')
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def my_reverse(s):
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return s[::-1]
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app.register_blueprint(bp, url_prefix='/py')
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assert 'strrev' in app.jinja_env.filters.keys()
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assert app.jinja_env.filters['strrev'] == my_reverse
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assert app.jinja_env.filters['strrev']('abcd') == 'dcba'
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def test_add_template_filter_with_name(app):
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bp = flask.Blueprint('bp', __name__)
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def my_reverse(s):
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return s[::-1]
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bp.add_app_template_filter(my_reverse, 'strrev')
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app.register_blueprint(bp, url_prefix='/py')
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assert 'strrev' in app.jinja_env.filters.keys()
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assert app.jinja_env.filters['strrev'] == my_reverse
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assert app.jinja_env.filters['strrev']('abcd') == 'dcba'
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def test_template_filter_with_template(app, client):
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_filter()
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def super_reverse(s):
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return s[::-1]
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app.register_blueprint(bp, url_prefix='/py')
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@app.route('/')
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def index():
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return flask.render_template('template_filter.html', value='abcd')
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rv = client.get('/')
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assert rv.data == b'dcba'
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def test_template_filter_after_route_with_template(app, client):
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@app.route('/')
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def index():
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return flask.render_template('template_filter.html', value='abcd')
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_filter()
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def super_reverse(s):
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return s[::-1]
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app.register_blueprint(bp, url_prefix='/py')
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rv = client.get('/')
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assert rv.data == b'dcba'
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def test_add_template_filter_with_template(app, client):
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bp = flask.Blueprint('bp', __name__)
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def super_reverse(s):
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return s[::-1]
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bp.add_app_template_filter(super_reverse)
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app.register_blueprint(bp, url_prefix='/py')
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@app.route('/')
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def index():
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return flask.render_template('template_filter.html', value='abcd')
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rv = client.get('/')
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assert rv.data == b'dcba'
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def test_template_filter_with_name_and_template(app, client):
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_filter('super_reverse')
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def my_reverse(s):
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return s[::-1]
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app.register_blueprint(bp, url_prefix='/py')
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@app.route('/')
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def index():
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return flask.render_template('template_filter.html', value='abcd')
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rv = client.get('/')
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assert rv.data == b'dcba'
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def test_add_template_filter_with_name_and_template(app, client):
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bp = flask.Blueprint('bp', __name__)
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def my_reverse(s):
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return s[::-1]
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bp.add_app_template_filter(my_reverse, 'super_reverse')
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app.register_blueprint(bp, url_prefix='/py')
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@app.route('/')
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def index():
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return flask.render_template('template_filter.html', value='abcd')
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rv = client.get('/')
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assert rv.data == b'dcba'
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def test_template_test(app):
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bp = flask.Blueprint('bp', __name__)
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@bp.app_template_test()
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def is_boolean(value):
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return isinstance(value, bool)
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app.register_blueprint(bp, url_prefix='/py')
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assert 'is_boolean' in app.jinja_env.tests.keys()
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assert app.jinja_env.tests['is_boolean'] == is_boolean
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assert app.jinja_env.tests['is_boolean'](False)
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def test_add_template_test(app):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
def is_boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
bp.add_app_template_test(is_boolean)
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
assert 'is_boolean' in app.jinja_env.tests.keys()
|
|
assert app.jinja_env.tests['is_boolean'] == is_boolean
|
|
assert app.jinja_env.tests['is_boolean'](False)
|
|
|
|
|
|
def test_template_test_with_name(app):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
@bp.app_template_test('boolean')
|
|
def is_boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
assert 'boolean' in app.jinja_env.tests.keys()
|
|
assert app.jinja_env.tests['boolean'] == is_boolean
|
|
assert app.jinja_env.tests['boolean'](False)
|
|
|
|
|
|
def test_add_template_test_with_name(app):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
def is_boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
bp.add_app_template_test(is_boolean, 'boolean')
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
assert 'boolean' in app.jinja_env.tests.keys()
|
|
assert app.jinja_env.tests['boolean'] == is_boolean
|
|
assert app.jinja_env.tests['boolean'](False)
|
|
|
|
|
|
def test_template_test_with_template(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
@bp.app_template_test()
|
|
def boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return flask.render_template('template_test.html', value=False)
|
|
|
|
rv = client.get('/')
|
|
assert b'Success!' in rv.data
|
|
|
|
|
|
def test_template_test_after_route_with_template(app, client):
|
|
@app.route('/')
|
|
def index():
|
|
return flask.render_template('template_test.html', value=False)
|
|
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
@bp.app_template_test()
|
|
def boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
rv = client.get('/')
|
|
assert b'Success!' in rv.data
|
|
|
|
|
|
def test_add_template_test_with_template(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
def boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
bp.add_app_template_test(boolean)
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return flask.render_template('template_test.html', value=False)
|
|
|
|
rv = client.get('/')
|
|
assert b'Success!' in rv.data
|
|
|
|
|
|
def test_template_test_with_name_and_template(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
@bp.app_template_test('boolean')
|
|
def is_boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return flask.render_template('template_test.html', value=False)
|
|
|
|
rv = client.get('/')
|
|
assert b'Success!' in rv.data
|
|
|
|
|
|
def test_add_template_test_with_name_and_template(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
def is_boolean(value):
|
|
return isinstance(value, bool)
|
|
|
|
bp.add_app_template_test(is_boolean, 'boolean')
|
|
app.register_blueprint(bp, url_prefix='/py')
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return flask.render_template('template_test.html', value=False)
|
|
|
|
rv = client.get('/')
|
|
assert b'Success!' in rv.data
|
|
|
|
|
|
def test_context_processing(app, client):
|
|
answer_bp = flask.Blueprint('answer_bp', __name__)
|
|
|
|
template_string = lambda: flask.render_template_string(
|
|
'{% if notanswer %}{{ notanswer }} is not the answer. {% endif %}'
|
|
'{% if answer %}{{ answer }} is the answer.{% endif %}'
|
|
)
|
|
|
|
# App global context processor
|
|
@answer_bp.app_context_processor
|
|
def not_answer_context_processor():
|
|
return {'notanswer': 43}
|
|
|
|
# Blueprint local context processor
|
|
@answer_bp.context_processor
|
|
def answer_context_processor():
|
|
return {'answer': 42}
|
|
|
|
# Setup endpoints for testing
|
|
@answer_bp.route('/bp')
|
|
def bp_page():
|
|
return template_string()
|
|
|
|
@app.route('/')
|
|
def app_page():
|
|
return template_string()
|
|
|
|
# Register the blueprint
|
|
app.register_blueprint(answer_bp)
|
|
|
|
app_page_bytes = client.get('/').data
|
|
answer_page_bytes = client.get('/bp').data
|
|
|
|
assert b'43' in app_page_bytes
|
|
assert b'42' not in app_page_bytes
|
|
|
|
assert b'42' in answer_page_bytes
|
|
assert b'43' in answer_page_bytes
|
|
|
|
|
|
def test_template_global(app):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
@bp.app_template_global()
|
|
def get_answer():
|
|
return 42
|
|
|
|
# Make sure the function is not in the jinja_env already
|
|
assert 'get_answer' not in app.jinja_env.globals.keys()
|
|
app.register_blueprint(bp)
|
|
|
|
# Tests
|
|
assert 'get_answer' in app.jinja_env.globals.keys()
|
|
assert app.jinja_env.globals['get_answer'] is get_answer
|
|
assert app.jinja_env.globals['get_answer']() == 42
|
|
|
|
with app.app_context():
|
|
rv = flask.render_template_string('{{ get_answer() }}')
|
|
assert rv == '42'
|
|
|
|
|
|
def test_request_processing(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
evts = []
|
|
|
|
@bp.before_request
|
|
def before_bp():
|
|
evts.append('before')
|
|
|
|
@bp.after_request
|
|
def after_bp(response):
|
|
response.data += b'|after'
|
|
evts.append('after')
|
|
return response
|
|
|
|
@bp.teardown_request
|
|
def teardown_bp(exc):
|
|
evts.append('teardown')
|
|
|
|
# Setup routes for testing
|
|
@bp.route('/bp')
|
|
def bp_endpoint():
|
|
return 'request'
|
|
|
|
app.register_blueprint(bp)
|
|
|
|
assert evts == []
|
|
rv = client.get('/bp')
|
|
assert rv.data == b'request|after'
|
|
assert evts == ['before', 'after', 'teardown']
|
|
|
|
|
|
def test_app_request_processing(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
evts = []
|
|
|
|
@bp.before_app_first_request
|
|
def before_first_request():
|
|
evts.append('first')
|
|
|
|
@bp.before_app_request
|
|
def before_app():
|
|
evts.append('before')
|
|
|
|
@bp.after_app_request
|
|
def after_app(response):
|
|
response.data += b'|after'
|
|
evts.append('after')
|
|
return response
|
|
|
|
@bp.teardown_app_request
|
|
def teardown_app(exc):
|
|
evts.append('teardown')
|
|
|
|
app.register_blueprint(bp)
|
|
|
|
# Setup routes for testing
|
|
@app.route('/')
|
|
def bp_endpoint():
|
|
return 'request'
|
|
|
|
# before first request
|
|
assert evts == []
|
|
|
|
# first request
|
|
resp = client.get('/').data
|
|
assert resp == b'request|after'
|
|
assert evts == ['first', 'before', 'after', 'teardown']
|
|
|
|
# second request
|
|
resp = client.get('/').data
|
|
assert resp == b'request|after'
|
|
assert evts == ['first'] + ['before', 'after', 'teardown'] * 2
|
|
|
|
|
|
def test_app_url_processors(app, client):
|
|
bp = flask.Blueprint('bp', __name__)
|
|
|
|
# Register app-wide url defaults and preprocessor on blueprint
|
|
@bp.app_url_defaults
|
|
def add_language_code(endpoint, values):
|
|
values.setdefault('lang_code', flask.g.lang_code)
|
|
|
|
@bp.app_url_value_preprocessor
|
|
def pull_lang_code(endpoint, values):
|
|
flask.g.lang_code = values.pop('lang_code')
|
|
|
|
# Register route rules at the app level
|
|
@app.route('/<lang_code>/')
|
|
def index():
|
|
return flask.url_for('about')
|
|
|
|
@app.route('/<lang_code>/about')
|
|
def about():
|
|
return flask.url_for('index')
|
|
|
|
app.register_blueprint(bp)
|
|
|
|
assert client.get('/de/').data == b'/de/about'
|
|
assert client.get('/de/about').data == b'/de/'
|