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"""
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Module with tests for the extractoutput transformer
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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 .base import TransformerTestsBase
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from ..extractoutput import ExtractOutputTransformer
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#-----------------------------------------------------------------------------
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# Class
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#-----------------------------------------------------------------------------
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class TestExtractOutput(TransformerTestsBase):
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"""Contains test functions for extractoutput.py"""
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def build_transformer(self):
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"""Make an instance of a transformer"""
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transformer = ExtractOutputTransformer()
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transformer.enabled = True
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return transformer
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def test_constructor(self):
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"""Can a ExtractOutputTransformer be constructed?"""
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self.build_transformer()
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def test_output(self):
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"""Test the output of the ExtractOutputTransformer"""
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nb = self.build_notebook()
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res = self.build_resources()
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transformer = self.build_transformer()
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nb, res = transformer(nb, res)
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# Check if text was extracted.
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assert 'text_filename' in nb.worksheets[0].cells[0].outputs[1]
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text_filename = nb.worksheets[0].cells[0].outputs[1]['text_filename']
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# Check if png was extracted.
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assert 'png_filename' in nb.worksheets[0].cells[0].outputs[6]
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png_filename = nb.worksheets[0].cells[0].outputs[6]['png_filename']
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# Verify text output
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assert text_filename in res['outputs']
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self.assertEqual(res['outputs'][text_filename], b'b')
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# Verify png output
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assert png_filename in res['outputs']
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self.assertEqual(res['outputs'][png_filename], b'g')
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