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"""Tests for various magic functions.
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Needs to be run by nose (to make ipython session available).
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"""
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# Standard library imports
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import os
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import sys
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# Third-party imports
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import nose.tools as nt
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# From our own code
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from IPython.testing import decorators as dec
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#-----------------------------------------------------------------------------
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# Test functions begin
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def test_rehashx():
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# clear up everything
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_ip.IP.alias_table.clear()
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del _ip.db['syscmdlist']
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_ip.magic('rehashx')
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# Practically ALL ipython development systems will have more than 10 aliases
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assert len(_ip.IP.alias_table) > 10
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for key, val in _ip.IP.alias_table.items():
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# we must strip dots from alias names
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assert '.' not in key
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# rehashx must fill up syscmdlist
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scoms = _ip.db['syscmdlist']
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assert len(scoms) > 10
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def doctest_run_ns():
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"""Classes declared %run scripts must be instantiable afterwards.
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In [11]: run tclass
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In [12]: isinstance(f(),foo)
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Out[12]: True
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"""
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def doctest_run_ns2():
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"""Classes declared %run scripts must be instantiable afterwards.
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In [3]: run tclass.py
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In [4]: run tclass first_pass
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In [5]: run tclass second_pass
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Deleting object: first_pass
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"""
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def doctest_hist_f():
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"""Test %hist -f with temporary filename.
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In [9]: import tempfile
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In [10]: tfile = tempfile.mktemp('.py','tmp-ipython-')
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In [11]: %history -n -f $tfile 3
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"""
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def doctest_hist_r():
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"""Test %hist -r
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XXX - This test is not recording the output correctly. Not sure why...
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In [6]: x=1
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In [7]: hist -n -r 2
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x=1 # random
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hist -n -r 2 # random
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"""
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def test_obj_del():
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"""Test that object's __del__ methods are called on exit."""
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test_dir = os.path.dirname(__file__)
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del_file = os.path.join(test_dir,'obj_del.py')
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out = _ip.IP.getoutput('ipython %s' % del_file)
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nt.assert_equals(out,'object A deleted')
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def test_shist():
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# Simple tests of ShadowHist class - test generator.
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import os, shutil, tempfile
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from IPython.Extensions import pickleshare
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from IPython.history import ShadowHist
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tfile = tempfile.mktemp('','tmp-ipython-')
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db = pickleshare.PickleShareDB(tfile)
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s = ShadowHist(db)
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s.add('hello')
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s.add('world')
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s.add('hello')
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s.add('hello')
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s.add('karhu')
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yield nt.assert_equals,s.all(),[(1, 'hello'), (2, 'world'), (3, 'karhu')]
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yield nt.assert_equal,s.get(2),'world'
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shutil.rmtree(tfile)
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@dec.skipif_not_numpy
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def test_numpy_clear_array_undec():
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_ip.ex('import numpy as np')
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_ip.ex('a = np.empty(2)')
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yield nt.assert_true,'a' in _ip.user_ns
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_ip.magic('clear array')
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yield nt.assert_false,'a' in _ip.user_ns
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@dec.skip()
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def test_fail_dec(*a,**k):
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yield nt.assert_true, False
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@dec.skip('This one shouldn not run')
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def test_fail_dec2(*a,**k):
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yield nt.assert_true, False
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@dec.skipknownfailure
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def test_fail_dec3(*a,**k):
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yield nt.assert_true, False
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