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"""
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Module with tests for the clearoutput preprocessor.
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"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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from IPython.nbformat import current as nbformat
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from .base import PreprocessorTestsBase
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from ..clearoutput import ClearOutputPreprocessor
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#-----------------------------------------------------------------------------
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# Class
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#-----------------------------------------------------------------------------
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class TestClearOutput(PreprocessorTestsBase):
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"""Contains test functions for clearoutput.py"""
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def build_preprocessor(self):
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"""Make an instance of a preprocessor"""
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preprocessor = ClearOutputPreprocessor()
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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 ClearOutputPreprocessor 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 ClearOutputPreprocessor"""
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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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assert nb.worksheets[0].cells[0].outputs == []
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assert nb.worksheets[0].cells[0].prompt_number is None
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