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show nice message when registering error handler for unknown code

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clean up error handler docs
closes #1837
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David Lord 2017-05-31 18:02:23 -07:00
parent 9049755e3f
commit 859d9a9d5c
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3 changed files with 79 additions and 54 deletions
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7
tests/test_basic.py
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@ -870,6 +870,13 @@ def test_error_handling(app, client):
assert b'forbidden' == rv.data
def test_error_handler_unknown_code(app):
with pytest.raises(KeyError) as exc_info:
app.register_error_handler(999, lambda e: ('999', 999))
assert 'Use a subclass' in exc_info.value.args[0]
def test_error_handling_processing(app, client):
app.config['LOGGER_HANDLER_POLICY'] = 'never'
app.testing = False