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Complete implementation of interactive traceback support....
Complete implementation of interactive traceback support. Ever since IPython started, we've had no proper tracebacks for interactively entered code. The terminal version was fairly uncomfortable for more than just a few lines of code, so this was never too big of a deal. But the new architecture allows clients with complex multiline input, and having proper tracebacks becomes now critical for real-world use. Thanks to Robert Kern for key implementation ideas and original patch. Closes gh-177.

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test_prefilter.py
68 lines | 2.3 KiB | text/x-python | PythonLexer
"""Tests for input manipulation machinery."""
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import nose.tools as nt
from IPython.testing import tools as tt, decorators as dec
from IPython.testing.globalipapp import get_ipython
#-----------------------------------------------------------------------------
# Tests
#-----------------------------------------------------------------------------
ip = get_ipython()
@dec.parametric
def test_prefilter():
"""Test user input conversions"""
# pairs of (raw, expected correct) input
pairs = [ ('2+2','2+2'),
('>>> 2+2','2+2'),
('>>> # This is a comment\n'
'... 2+2',
'# This is a comment\n'
'2+2'),
# Some IPython input
('In [1]: 1', '1'),
('In [2]: for i in range(5):\n'
' ...: print i,',
'for i in range(5):\n'
' print i,'),
]
for raw, correct in pairs:
yield nt.assert_equals(ip.prefilter(raw), correct)
@dec.parametric
def test_autocall_binops():
"""See https://bugs.launchpad.net/ipython/+bug/315706"""
ip.magic('autocall 2')
f = lambda x: x
ip.user_ns['f'] = f
try:
yield nt.assert_equals(ip.prefilter('f 1'),'f(1)')
for t in ['f +1', 'f -1']:
yield nt.assert_equals(ip.prefilter(t), t)
finally:
ip.magic('autocall 0')
del ip.user_ns['f']
@dec.parametric
def test_issue114():
"""Check that multiline string literals don't expand as magic
see http://github.com/ipython/ipython/issues/#issue/114"""
template = '"""\n%s\n"""'
# Store the current value of multi_line_specials and turn it off before
# running test, since it could be true (case in which the test doesn't make
# sense, as multiline string literals *will* expand as magic in that case).
msp = ip.prefilter_manager.multi_line_specials
ip.prefilter_manager.multi_line_specials = False
try:
for mgk in ip.lsmagic():
raw = template % mgk
yield nt.assert_equals(ip.prefilter(raw), raw)
finally:
ip.prefilter_manager.multi_line_specials = msp