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"""
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Module with tests for DataTypeFilter
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"""
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#-----------------------------------------------------------------------------
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# Copyright (c) 2013, the IPython Development Team.
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#
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# Distributed under the terms of the Modified BSD License.
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#
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# The full license is in the file COPYING.txt, distributed with this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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from ...tests.base import TestsBase
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from ..datatypefilter import DataTypeFilter
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#-----------------------------------------------------------------------------
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# Class
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#-----------------------------------------------------------------------------
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class TestDataTypeFilter(TestsBase):
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"""Contains test functions for datatypefilter.py"""
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def test_constructor(self):
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"""Can an instance of a DataTypeFilter be created?"""
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DataTypeFilter()
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def test_junk_types(self):
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"""Can the DataTypeFilter pickout a useful type from a list of junk types?"""
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filter = DataTypeFilter()
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assert "png" in filter(["hair", "water", "png", "rock"])
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assert "pdf" in filter(["pdf", "hair", "water", "png", "rock"])
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self.assertEqual(filter(["hair", "water", "rock"]), [])
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def test_null(self):
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"""Will the DataTypeFilter fail if no types are passed in?"""
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filter = DataTypeFilter()
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self.assertEqual(filter([]), [])
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