173 lines
5.0 KiB
Python
173 lines
5.0 KiB
Python
from sanic import Sanic
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from sanic.response import text
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from sanic.exceptions import InvalidUsage, ServerError, NotFound
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from sanic.handlers import ErrorHandler
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from bs4 import BeautifulSoup
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exception_handler_app = Sanic('test_exception_handler')
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@exception_handler_app.route('/1')
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def handler_1(request):
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raise InvalidUsage("OK")
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@exception_handler_app.route('/2')
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def handler_2(request):
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raise ServerError("OK")
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@exception_handler_app.route('/3')
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def handler_3(request):
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raise NotFound("OK")
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@exception_handler_app.route('/4')
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def handler_4(request):
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foo = bar
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return text(foo)
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@exception_handler_app.route('/5')
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def handler_5(request):
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class CustomServerError(ServerError):
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pass
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raise CustomServerError('Custom server error')
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@exception_handler_app.route('/6/<arg:int>')
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def handler_6(request, arg):
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try:
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foo = 1 / arg
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except Exception as e:
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raise e from ValueError("{}".format(arg))
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return text(foo)
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@exception_handler_app.route('/7')
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def handler_7(request):
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# raise an IndexError
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a = [1,2,3]
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return text( a[3] )
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@exception_handler_app.exception(NotFound, ServerError)
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def handler_exception(request, exception):
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return text("OK")
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@exception_handler_app.exception(NotFound, ServerError)
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def handler_exception(request, exception):
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return text("OK")
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@exception_handler_app.exception_base( LookupError )
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def handler_exception(request, exception):
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# LookupError can catch IndexError
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return text("Caught by LookupError")
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def test_invalid_usage_exception_handler():
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request, response = exception_handler_app.test_client.get('/1')
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assert response.status == 400
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def test_server_error_exception_handler():
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request, response = exception_handler_app.test_client.get('/2')
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assert response.status == 200
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assert response.text == 'OK'
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def test_not_found_exception_handler():
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request, response = exception_handler_app.test_client.get('/3')
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assert response.status == 200
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def test_text_exception__handler():
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request, response = exception_handler_app.test_client.get('/random')
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assert response.status == 200
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assert response.text == 'OK'
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def test_html_traceback_output_in_debug_mode():
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request, response = exception_handler_app.test_client.get(
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'/4', debug=True)
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assert response.status == 500
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soup = BeautifulSoup(response.body, 'html.parser')
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html = str(soup)
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assert 'response = handler(request, *args, **kwargs)' in html
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assert 'handler_4' in html
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assert 'foo = bar' in html
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summary_text = " ".join(soup.select('.summary')[0].text.split())
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assert (
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"NameError: name 'bar' "
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"is not defined while handling path /4") == summary_text
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def test_inherited_exception_handler():
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request, response = exception_handler_app.test_client.get('/5')
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assert response.status == 200
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def test_chained_exception_handler():
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request, response = exception_handler_app.test_client.get(
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'/6/0', debug=True)
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assert response.status == 500
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soup = BeautifulSoup(response.body, 'html.parser')
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html = str(soup)
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assert 'response = handler(request, *args, **kwargs)' in html
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assert 'handler_6' in html
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assert 'foo = 1 / arg' in html
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assert 'ValueError' in html
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assert 'The above exception was the direct cause' in html
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summary_text = " ".join(soup.select('.summary')[0].text.split())
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assert (
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"ZeroDivisionError: division by zero "
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"while handling path /6/0") == summary_text
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def test_chained_exception_base_handler():
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request, response = exception_handler_app.test_client.get(
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'/7', debug=True)
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assert response.status == 200
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assert response.body == b'Caught by LookupError'
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def test_exception_handler_lookup():
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class CustomError(Exception):
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pass
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class CustomServerError(ServerError):
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pass
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def custom_error_handler():
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pass
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def server_error_handler():
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pass
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def import_error_handler():
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pass
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try:
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ModuleNotFoundError
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except:
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class ModuleNotFoundError(ImportError):
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pass
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handler = ErrorHandler()
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handler.add(ImportError, import_error_handler)
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handler.add(CustomError, custom_error_handler)
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handler.add(ServerError, server_error_handler)
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assert handler.lookup(ImportError()) == import_error_handler
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assert handler.lookup(ModuleNotFoundError()) == import_error_handler
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assert handler.lookup(CustomError()) == custom_error_handler
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assert handler.lookup(ServerError('Error')) == server_error_handler
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assert handler.lookup(CustomServerError('Error')) == server_error_handler
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# once again to ensure there is no caching bug
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assert handler.lookup(ImportError()) == import_error_handler
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assert handler.lookup(ModuleNotFoundError()) == import_error_handler
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assert handler.lookup(CustomError()) == custom_error_handler
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assert handler.lookup(ServerError('Error')) == server_error_handler
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assert handler.lookup(CustomServerError('Error')) == server_error_handler
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