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71 lines
2.0 KiB
Python
71 lines
2.0 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import contextlib
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import tempfile
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from typing import Optional
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import pytest
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from flask_wtf.file import FileField
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from wtforms import Form, ValidationError
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from superset.forms import FileSizeLimit
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def _get_test_form(size_limit: Optional[int]) -> Form:
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class TestForm(Form):
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test = FileField("test", validators=[FileSizeLimit(size_limit)])
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return TestForm()
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@contextlib.contextmanager
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def _tempfile(contents: bytes):
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with tempfile.NamedTemporaryFile() as f:
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f.write(contents)
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f.flush()
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yield f
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def test_file_size_limit_pass() -> None:
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"""Permit files which do not exceed the size limit"""
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limit = 100
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form = _get_test_form(limit)
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with _tempfile(b"." * limit) as f:
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form.test.data = f
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assert form.validate() is True
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def test_file_size_limit_fail() -> None:
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"""Reject files which are too large"""
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limit = 100
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form = _get_test_form(limit)
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with _tempfile(b"." * (limit + 1)) as f:
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form.test.data = f
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assert form.validate() is False
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def test_file_size_limit_ignored_if_none() -> None:
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"""Permit files when there is no limit"""
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form = _get_test_form(None)
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with _tempfile(b"." * 200) as f:
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form.test.data = f
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assert form.validate() is True
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