|
|
"""Tests for the key interactiveshell module.
|
|
|
|
|
|
Historically the main classes in interactiveshell have been under-tested. This
|
|
|
module should grow as many single-method tests as possible to trap many of the
|
|
|
recurring bugs we seem to encounter with high-level interaction.
|
|
|
|
|
|
Authors
|
|
|
-------
|
|
|
* Fernando Perez
|
|
|
"""
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (C) 2011 The IPython Development Team
|
|
|
#
|
|
|
# Distributed under the terms of the BSD License. The full license is in
|
|
|
# the file COPYING, distributed as part of this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# stdlib
|
|
|
import unittest
|
|
|
from cStringIO import StringIO
|
|
|
|
|
|
from IPython.testing import decorators as dec
|
|
|
from IPython.utils import io
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Tests
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
class InteractiveShellTestCase(unittest.TestCase):
|
|
|
def test_naked_string_cells(self):
|
|
|
"""Test that cells with only naked strings are fully executed"""
|
|
|
ip = get_ipython()
|
|
|
# First, single-line inputs
|
|
|
ip.run_cell('"a"\n')
|
|
|
self.assertEquals(ip.user_ns['_'], 'a')
|
|
|
# And also multi-line cells
|
|
|
ip.run_cell('"""a\nb"""\n')
|
|
|
self.assertEquals(ip.user_ns['_'], 'a\nb')
|
|
|
|
|
|
def test_run_empty_cell(self):
|
|
|
"""Just make sure we don't get a horrible error with a blank
|
|
|
cell of input. Yes, I did overlook that."""
|
|
|
ip = get_ipython()
|
|
|
old_xc = ip.execution_count
|
|
|
ip.run_cell('')
|
|
|
self.assertEquals(ip.execution_count, old_xc)
|
|
|
|
|
|
def test_run_cell_multiline(self):
|
|
|
"""Multi-block, multi-line cells must execute correctly.
|
|
|
"""
|
|
|
ip = get_ipython()
|
|
|
src = '\n'.join(["x=1",
|
|
|
"y=2",
|
|
|
"if 1:",
|
|
|
" x += 1",
|
|
|
" y += 1",])
|
|
|
ip.run_cell(src)
|
|
|
self.assertEquals(ip.user_ns['x'], 2)
|
|
|
self.assertEquals(ip.user_ns['y'], 3)
|
|
|
|
|
|
def test_multiline_string_cells(self):
|
|
|
"Code sprinkled with multiline strings should execute (GH-306)"
|
|
|
ip = get_ipython()
|
|
|
ip.run_cell('tmp=0')
|
|
|
self.assertEquals(ip.user_ns['tmp'], 0)
|
|
|
ip.run_cell('tmp=1;"""a\nb"""\n')
|
|
|
self.assertEquals(ip.user_ns['tmp'], 1)
|
|
|
|
|
|
def test_dont_cache_with_semicolon(self):
|
|
|
"Ending a line with semicolon should not cache the returned object (GH-307)"
|
|
|
ip = get_ipython()
|
|
|
oldlen = len(ip.user_ns['Out'])
|
|
|
a = ip.run_cell('1;')
|
|
|
newlen = len(ip.user_ns['Out'])
|
|
|
self.assertEquals(oldlen, newlen)
|
|
|
#also test the default caching behavior
|
|
|
ip.run_cell('1')
|
|
|
newlen = len(ip.user_ns['Out'])
|
|
|
self.assertEquals(oldlen+1, newlen)
|
|
|
|
|
|
def test_In_variable(self):
|
|
|
"Verify that In variable grows with user input (GH-284)"
|
|
|
ip = get_ipython()
|
|
|
oldlen = len(ip.user_ns['In'])
|
|
|
ip.run_cell('1;')
|
|
|
newlen = len(ip.user_ns['In'])
|
|
|
self.assertEquals(oldlen+1, newlen)
|
|
|
self.assertEquals(ip.user_ns['In'][-1],'1;')
|
|
|
|
|
|
def test_magic_names_in_string(self):
|
|
|
ip = get_ipython()
|
|
|
ip.run_cell('a = """\n%exit\n"""')
|
|
|
self.assertEquals(ip.user_ns['a'], '\n%exit\n')
|
|
|
|
|
|
def test_alias_crash(self):
|
|
|
"""Errors in prefilter can't crash IPython"""
|
|
|
ip = get_ipython()
|
|
|
ip.run_cell('%alias parts echo first %s second %s')
|
|
|
# capture stderr:
|
|
|
save_err = io.stderr
|
|
|
io.stderr = StringIO()
|
|
|
ip.run_cell('parts 1')
|
|
|
err = io.stderr.getvalue()
|
|
|
io.stderr = save_err
|
|
|
self.assertEquals(err.split(':')[0], 'ERROR')
|
|
|
|
|
|
def test_trailing_newline(self):
|
|
|
"""test that running !(command) does not raise a SyntaxError"""
|
|
|
ip = get_ipython()
|
|
|
ip.run_cell('!(true)\n', False)
|
|
|
ip.run_cell('!(true)\n\n\n', False)
|
|
|
|
|
|
|
|
|
|
