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"""
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Module with tests for the extractoutput preprocessor
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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 PreprocessorTestsBase
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from ..extractoutput import ExtractOutputPreprocessor
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#-----------------------------------------------------------------------------
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# Class
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#-----------------------------------------------------------------------------
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class TestExtractOutput(PreprocessorTestsBase):
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"""Contains test functions for extractoutput.py"""
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def build_preprocessor(self):
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"""Make an instance of a preprocessor"""
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preprocessor = ExtractOutputPreprocessor()
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preprocessor.extract_output_types = {'text', 'png', 'application/pdf'}
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preprocessor.enabled = True
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return preprocessor
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def test_constructor(self):
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"""Can a ExtractOutputPreprocessor be constructed?"""
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self.build_preprocessor()
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def test_output(self):
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"""Test the output of the ExtractOutputPreprocessor"""
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nb = self.build_notebook()
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res = self.build_resources()
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preprocessor = self.build_preprocessor()
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nb, res = preprocessor(nb, res)
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# Check if text was extracted.
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output = nb.worksheets[0].cells[0].outputs[1]
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assert 'text_filename' in output
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text_filename = output['text_filename']
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# Check if png was extracted.
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output = nb.worksheets[0].cells[0].outputs[6]
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assert 'png_filename' in output
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png_filename = output['png_filename']
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# Check that pdf was extracted
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output = nb.worksheets[0].cells[0].outputs[7]
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assert 'application/pdf_filename' in output
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pdf_filename = output['application/pdf_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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# Verify pdf output
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assert pdf_filename in res['outputs']
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self.assertEqual(res['outputs'][pdf_filename], b'h')
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