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Merge pull request #1306 from ivanov/fix1302...
Merge pull request #1306 from ivanov/fix1302 Fix %prun input parsing for escaped characters (closes #1302)

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test_magic.py
366 lines | 9.1 KiB | text/x-python | PythonLexer
"""Tests for various magic functions.
Needs to be run by nose (to make ipython session available).
"""
from __future__ import absolute_import
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import os
import nose.tools as nt
from IPython.testing import decorators as dec
from IPython.testing import tools as tt
from IPython.utils import py3compat
#-----------------------------------------------------------------------------
# Test functions begin
#-----------------------------------------------------------------------------
def test_rehashx():
# clear up everything
_ip = get_ipython()
_ip.alias_manager.alias_table.clear()
del _ip.db['syscmdlist']
_ip.magic('rehashx')
# Practically ALL ipython development systems will have more than 10 aliases
yield (nt.assert_true, len(_ip.alias_manager.alias_table) > 10)
for key, val in _ip.alias_manager.alias_table.iteritems():
# we must strip dots from alias names
nt.assert_true('.' not in key)
# rehashx must fill up syscmdlist
scoms = _ip.db['syscmdlist']
yield (nt.assert_true, len(scoms) > 10)
def test_magic_parse_options():
"""Test that we don't mangle paths when parsing magic options."""
ip = get_ipython()
path = 'c:\\x'
opts = ip.parse_options('-f %s' % path,'f:')[0]
# argv splitting is os-dependent
if os.name == 'posix':
expected = 'c:x'
else:
expected = path
nt.assert_equals(opts['f'], expected)
@dec.skip_without('sqlite3')
def doctest_hist_f():
"""Test %hist -f with temporary filename.
In [9]: import tempfile
In [10]: tfile = tempfile.mktemp('.py','tmp-ipython-')
In [11]: %hist -nl -f $tfile 3
In [13]: import os; os.unlink(tfile)
"""
@dec.skip_without('sqlite3')
def doctest_hist_r():
"""Test %hist -r
XXX - This test is not recording the output correctly. For some reason, in
testing mode the raw history isn't getting populated. No idea why.
Disabling the output checking for now, though at least we do run it.
In [1]: 'hist' in _ip.lsmagic()
Out[1]: True
In [2]: x=1
In [3]: %hist -rl 2
x=1 # random
%hist -r 2
"""
@dec.skip_without('sqlite3')
def doctest_hist_op():
"""Test %hist -op
In [1]: class b(float):
...: pass
...:
In [2]: class s(object):
...: def __str__(self):
...: return 's'
...:
In [3]:
In [4]: class r(b):
...: def __repr__(self):
...: return 'r'
...:
In [5]: class sr(s,r): pass
...:
In [6]:
In [7]: bb=b()
In [8]: ss=s()
In [9]: rr=r()
In [10]: ssrr=sr()
In [11]: 4.5
Out[11]: 4.5
In [12]: str(ss)
Out[12]: 's'
In [13]:
In [14]: %hist -op
>>> class b:
... pass
...
>>> class s(b):
... def __str__(self):
... return 's'
...
>>>
>>> class r(b):
... def __repr__(self):
... return 'r'
...
>>> class sr(s,r): pass
>>>
>>> bb=b()
>>> ss=s()
>>> rr=r()
>>> ssrr=sr()
>>> 4.5
4.5
>>> str(ss)
's'
>>>
"""
@dec.skip_without('sqlite3')
def test_macro():
ip = get_ipython()
ip.history_manager.reset() # Clear any existing history.
cmds = ["a=1", "def b():\n return a**2", "print(a,b())"]
for i, cmd in enumerate(cmds, start=1):
ip.history_manager.store_inputs(i, cmd)
ip.magic("macro test 1-3")
nt.assert_equal(ip.user_ns["test"].value, "\n".join(cmds)+"\n")
# List macros.
assert "test" in ip.magic("macro")
@dec.skip_without('sqlite3')
def test_macro_run():
"""Test that we can run a multi-line macro successfully."""
ip = get_ipython()
ip.history_manager.reset()
cmds = ["a=10", "a+=1", py3compat.doctest_refactor_print("print a"),
"%macro test 2-3"]
for cmd in cmds:
ip.run_cell(cmd, store_history=True)
nt.assert_equal(ip.user_ns["test"].value,
py3compat.doctest_refactor_print("a+=1\nprint a\n"))
with tt.AssertPrints("12"):
ip.run_cell("test")
with tt.AssertPrints("13"):
ip.run_cell("test")
# XXX failing for now, until we get clearcmd out of quarantine. But we should
# fix this and revert the skip to happen only if numpy is not around.
#@dec.skipif_not_numpy
@dec.skip_known_failure
def test_numpy_clear_array_undec():
from IPython.extensions import clearcmd
_ip.ex('import numpy as np')
_ip.ex('a = np.empty(2)')
yield (nt.assert_true, 'a' in _ip.user_ns)
_ip.magic('clear array')
yield (nt.assert_false, 'a' in _ip.user_ns)
def test_time():
_ip.magic('time None')
@py3compat.doctest_refactor_print
def doctest_time():
"""
In [10]: %time None
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s
In [11]: def f(kmjy):
....: %time print 2*kmjy
In [12]: f(3)
6
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s
"""
def test_doctest_mode():
"Toggle doctest_mode twice, it should be a no-op and run without error"
_ip.magic('doctest_mode')
_ip.magic('doctest_mode')
def test_parse_options():
"""Tests for basic options parsing in magics."""
# These are only the most minimal of tests, more should be added later. At
# the very least we check that basic text/unicode calls work OK.
nt.assert_equal(_ip.parse_options('foo', '')[1], 'foo')
nt.assert_equal(_ip.parse_options(u'foo', '')[1], u'foo')
def test_dirops():
"""Test various directory handling operations."""
# curpath = lambda :os.path.splitdrive(os.getcwdu())[1].replace('\\','/')
curpath = os.getcwdu
startdir = os.getcwdu()
ipdir = os.path.realpath(_ip.ipython_dir)
try:
_ip.magic('cd "%s"' % ipdir)
nt.assert_equal(curpath(), ipdir)
_ip.magic('cd -')
nt.assert_equal(curpath(), startdir)
_ip.magic('pushd "%s"' % ipdir)
nt.assert_equal(curpath(), ipdir)
_ip.magic('popd')
nt.assert_equal(curpath(), startdir)
finally:
os.chdir(startdir)
def test_xmode():
# Calling xmode three times should be a no-op
xmode = _ip.InteractiveTB.mode
for i in range(3):
_ip.magic("xmode")
nt.assert_equal(_ip.InteractiveTB.mode, xmode)
def test_reset_hard():
monitor = []
class A(object):
def __del__(self):
monitor.append(1)
def __repr__(self):
return "<A instance>"
_ip.user_ns["a"] = A()
_ip.run_cell("a")
nt.assert_equal(monitor, [])
_ip.magic_reset("-f")
nt.assert_equal(monitor, [1])
class TestXdel(tt.TempFileMixin):
def test_xdel(self):
"""Test that references from %run are cleared by xdel."""
src = ("class A(object):\n"
" monitor = []\n"
" def __del__(self):\n"
" self.monitor.append(1)\n"
"a = A()\n")
self.mktmp(src)
# %run creates some hidden references...
_ip.magic("run %s" % self.fname)
# ... as does the displayhook.
_ip.run_cell("a")
monitor = _ip.user_ns["A"].monitor
nt.assert_equal(monitor, [])
_ip.magic("xdel a")
# Check that a's __del__ method has been called.
nt.assert_equal(monitor, [1])
def doctest_who():
"""doctest for %who
In [1]: %reset -f
In [2]: alpha = 123
In [3]: beta = 'beta'
In [4]: %who int
alpha
In [5]: %who str
beta
In [6]: %whos
Variable Type Data/Info
----------------------------
alpha int 123
beta str beta
In [7]: %who_ls
Out[7]: ['alpha', 'beta']
"""
@py3compat.u_format
def doctest_precision():
"""doctest for %precision
In [1]: f = get_ipython().shell.display_formatter.formatters['text/plain']
In [2]: %precision 5
Out[2]: {u}'%.5f'
In [3]: f.float_format
Out[3]: {u}'%.5f'
In [4]: %precision %e
Out[4]: {u}'%e'
In [5]: f(3.1415927)
Out[5]: {u}'3.141593e+00'
"""
def test_psearch():
with tt.AssertPrints("dict.fromkeys"):
_ip.run_cell("dict.fr*?")
def test_timeit_shlex():
"""test shlex issues with timeit (#1109)"""
_ip.ex("def f(*a,**kw): pass")
_ip.magic('timeit -n1 "this is a bug".count(" ")')
_ip.magic('timeit -r1 -n1 f(" ", 1)')
_ip.magic('timeit -r1 -n1 f(" ", 1, " ", 2, " ")')
_ip.magic('timeit -r1 -n1 ("a " + "b")')
_ip.magic('timeit -r1 -n1 f("a " + "b")')
_ip.magic('timeit -r1 -n1 f("a " + "b ")')
def test_timeit_arguments():
"Test valid timeit arguments, should not cause SyntaxError (GH #1269)"
_ip.magic("timeit ('#')")
@dec.skipif(_ip.magic_prun == _ip.profile_missing_notice)
def test_prun_quotes():
"Test that prun does not clobber string escapes (GH #1302)"
_ip.magic("prun -q x = '\t'")
nt.assert_equal(_ip.user_ns['x'], '\t')