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#!/usr/bin/env python
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# encoding: utf-8
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"""
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Simple tests for :mod:`IPython.extensions.pretty`.
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"""
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#-----------------------------------------------------------------------------
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# Copyright (C) 2008-2009 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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from unittest import TestCase
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from IPython.config.configurable import Configurable
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from IPython.core.interactiveshell import InteractiveShellABC
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from IPython.extensions import pretty as pretty_ext
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from IPython.external import pretty
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from IPython.testing import decorators as dec
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from IPython.testing import tools as tt
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from IPython.utils.traitlets import Bool
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#-----------------------------------------------------------------------------
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# Tests
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#-----------------------------------------------------------------------------
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class InteractiveShellStub(Configurable):
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pprint = Bool(True)
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InteractiveShellABC.register(InteractiveShellStub)
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class A(object):
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pass
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def a_pprinter(o, p, c):
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return p.text("<A>")
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class TestPrettyResultDisplay(TestCase):
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def setUp(self):
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self.ip = InteractiveShellStub()
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self.prd = pretty_ext.PrettyResultDisplay(shell=self.ip, config=None)
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@dec.skip_known_failure
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def test_for_type(self):
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self.prd.for_type(A, a_pprinter)
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a = A()
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result = pretty.pretty(a)
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self.assertEquals(result, "<A>")
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ipy_src = """
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class A(object):
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def __repr__(self):
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return 'A()'
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class B(object):
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def __repr__(self):
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return 'B()'
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a = A()
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b = B()
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def a_pretty_printer(obj, p, cycle):
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p.text('<A>')
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def b_pretty_printer(obj, p, cycle):
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p.text('<B>')
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a
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b
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ip = get_ipython()
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ip.extension_manager.load_extension('pretty')
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prd = ip.plugin_manager.get_plugin('pretty_result_display')
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prd.for_type(A, a_pretty_printer)
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prd.for_type_by_name(B.__module__, B.__name__, b_pretty_printer)
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a
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b
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"""
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ipy_out = """
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A()
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B()
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<A>
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<B>
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"""
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class TestPrettyInteractively(tt.TempFileMixin):
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# XXX Unfortunately, ipexec_validate fails under win32. If someone helps
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# us write a win32-compatible version, we can reactivate this test.
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@dec.skip_known_failure
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@dec.skip_win32
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def test_printers(self):
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self.mktmp(ipy_src, '.ipy')
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tt.ipexec_validate(self.fname, ipy_out)
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