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# -*- coding: utf-8 -*-
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"""Test suite for the deepreload module."""
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import os
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import nose.tools as nt
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from IPython.testing import decorators as dec
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from IPython.utils.py3compat import builtin_mod_name, PY3
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from IPython.utils.syspathcontext import prepended_to_syspath
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from IPython.utils.tempdir import TemporaryDirectory
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from IPython.lib.deepreload import reload as dreload
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#-----------------------------------------------------------------------------
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# Test functions begin
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#-----------------------------------------------------------------------------
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@dec.skipif_not_numpy
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def test_deepreload_numpy():
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"Test that NumPy can be deep reloaded."
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import numpy
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exclude = [
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# Standard exclusions:
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'sys', 'os.path', builtin_mod_name, '__main__',
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# Test-related exclusions:
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'unittest', 'UserDict',
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]
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# `collections` builtin shall not be reloaded to avoid failure
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# of lib.pretty collections related pretty printing.
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# of course this make nose crash on Py3 because of Py 2.3 compat...
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if not PY3:
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exclude.append('collections')
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dreload(numpy, exclude=exclude)
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def test_deepreload():
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"Test that dreload does deep reloads and skips excluded modules."
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with TemporaryDirectory() as tmpdir:
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with prepended_to_syspath(tmpdir):
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with open(os.path.join(tmpdir, 'A.py'), 'w') as f:
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f.write("class Object(object):\n pass\n")
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with open(os.path.join(tmpdir, 'B.py'), 'w') as f:
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f.write("import A\n")
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import A
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import B
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# Test that A is not reloaded.
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obj = A.Object()
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dreload(B, exclude=['A'])
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nt.assert_true(isinstance(obj, A.Object))
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# Test that A is reloaded.
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obj = A.Object()
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dreload(B)
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nt.assert_false(isinstance(obj, A.Object))
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