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# -*- coding: utf-8 -*-
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"""Tests for the key interactiveshell module.
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Authors
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-------
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* Julian Taylor
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"""
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#-----------------------------------------------------------------------------
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# Copyright (C) 2011 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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# stdlib
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import unittest
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from IPython.testing.decorators import skipif
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class InteractiveShellTestCase(unittest.TestCase):
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def rl_hist_entries(self, rl, n):
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"""Get last n readline history entries as a list"""
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return [rl.get_history_item(rl.get_current_history_length() - x)
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for x in range(n - 1, -1, -1)]
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def test_runs_without_rl(self):
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"""Test that function does not throw without readline"""
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ip = get_ipython()
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ip.has_readline = False
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ip.readline = None
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ip._replace_rlhist_multiline(u'source')
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@skipif(not get_ipython().has_readline, 'no readline')
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def test_replace_multiline_hist_disabled(self):
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"""Test that multiline replace does nothing if disabled"""
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ip = get_ipython()
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ip.multiline_history = False
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ghist = [u'line1', u'line2']
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for h in ghist:
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ip.readline.add_history(h)
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ip.hlen_before_cell = ip.readline.get_current_history_length()
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ip._replace_rlhist_multiline(u'sourc€\nsource2')
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self.assertEquals(ip.readline.get_current_history_length(),
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ip.hlen_before_cell)
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hist = self.rl_hist_entries(ip.readline, 2)
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self.assertEquals(hist, ghist)
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@skipif(not get_ipython().has_readline, 'no readline')
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def test_replace_multiline_hist_adds(self):
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"""Test that multiline replace function adds history"""
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ip = get_ipython()
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ip.hlen_before_cell = ip.readline.get_current_history_length()
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ip._replace_rlhist_multiline(u'sourc€')
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self.assertEquals(ip.hlen_before_cell,
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ip.readline.get_current_history_length())
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@skipif(not get_ipython().has_readline, 'no readline')
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def test_replace_multiline_hist_keeps_history(self):
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"""Test that multiline replace does not delete history"""
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ip = get_ipython()
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ip.multiline_history = True
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ghist = [u'line1', u'line2']
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for h in ghist:
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ip.readline.add_history(h)
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#start cell
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ip.hlen_before_cell = ip.readline.get_current_history_length()
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ip._replace_rlhist_multiline(u'sourc€\nsource2')
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self.assertEquals(ip.readline.get_current_history_length(),
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ip.hlen_before_cell)
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hist = self.rl_hist_entries(ip.readline, 3)
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self.assertEquals(hist, ghist + ['sourc€\nsource2'])
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@skipif(not get_ipython().has_readline, 'no readline')
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def test_replace_multiline_hist_replaces(self):
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"""Test that multiline entries are replaced"""
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ip = get_ipython()
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ip.multiline_history = True
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ip.readline.add_history(u'line0')
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#start cell
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ip.hlen_before_cell = ip.readline.get_current_history_length()
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ip.readline.add_history('l€ne1')
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ip.readline.add_history('line2')
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#replace cell with single line
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ip._replace_rlhist_multiline(u'l€ne1\nline2')
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self.assertEquals(ip.readline.get_current_history_length(),
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ip.hlen_before_cell)
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hist = self.rl_hist_entries(ip.readline, 2)
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self.assertEquals(hist, [u'line0', 'l€ne1\nline2'])
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@skipif(not get_ipython().has_readline, 'no readline')
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def test_replace_multiline_hist_replaces_twice(self):
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"""Test that multiline entries are replaced twice"""
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ip = get_ipython()
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ip.multiline_history = True
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ip.readline.add_history(u'line0')
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#start cell
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ip.hlen_before_cell = ip.readline.get_current_history_length()
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ip.readline.add_history('l€ne1')
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ip.readline.add_history('line2')
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#replace cell with single line
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ip._replace_rlhist_multiline(u'l€ne1\nline2')
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ip.readline.add_history('l€ne3')
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ip.readline.add_history('line4')
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#replace cell with single line
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ip._replace_rlhist_multiline(u'l€ne3\nline4')
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self.assertEquals(ip.readline.get_current_history_length(),
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ip.hlen_before_cell)
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hist = self.rl_hist_entries(ip.readline, 3)
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self.assertEquals(hist, ['line0', 'l€ne1\nline2', 'l€ne3\nline4'])
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