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"""Tests for the IPython tab-completion machinery.
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"""
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#-----------------------------------------------------------------------------
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# Module imports
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#-----------------------------------------------------------------------------
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# stdlib
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import sys
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import unittest
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# third party
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import nose.tools as nt
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# our own packages
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from IPython.core import completer
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#-----------------------------------------------------------------------------
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# Test functions
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#-----------------------------------------------------------------------------
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def test_protect_filename():
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pairs = [ ('abc','abc'),
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(' abc',r'\ abc'),
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('a bc',r'a\ bc'),
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('a bc',r'a\ \ bc'),
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(' bc',r'\ \ bc'),
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]
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# On posix, we also protect parens
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if sys.platform != 'win32':
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pairs.extend( [('a(bc',r'a\(bc'),
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('a)bc',r'a\)bc'),
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('a( )bc',r'a\(\ \)bc'),
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] )
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# run the actual tests
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for s1, s2 in pairs:
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s1p = completer.protect_filename(s1)
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nt.assert_equals(s1p, s2)
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def check_line_split(splitter, test_specs):
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for part1, part2, split in test_specs:
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cursor_pos = len(part1)
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line = part1+part2
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out = splitter.split_line(line, cursor_pos)
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nt.assert_equal(out, split)
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def test_line_split():
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"""Basice line splitter test with default specs."""
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sp = completer.CompletionSplitter()
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# The format of the test specs is: part1, part2, expected answer. Parts 1
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# and 2 are joined into the 'line' sent to the splitter, as if the cursor
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# was at the end of part1. So an empty part2 represents someone hitting
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# tab at the end of the line, the most common case.
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t = [('run some/scrip', '', 'some/scrip'),
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('run scripts/er', 'ror.py foo', 'scripts/er'),
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('echo $HOM', '', 'HOM'),
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('print sys.pa', '', 'sys.pa'),
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('print(sys.pa', '', 'sys.pa'),
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("execfile('scripts/er", '', 'scripts/er'),
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('a[x.', '', 'x.'),
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('a[x.', 'y', 'x.'),
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('cd "some_file/', '', 'some_file/'),
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]
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check_line_split(sp, t)
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# Ensure splitting works OK with unicode by re-running the tests with
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# all inputs turned into unicode
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check_line_split(sp, [ map(unicode, p) for p in t] )
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def test_unicode_completions():
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ip = get_ipython()
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# Some strings that trigger different types of completion. Check them both
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# in str and unicode forms
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s = ['ru', '%ru', 'cd /', 'floa', 'float(x)/']
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for t in s + map(unicode, s):
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# We don't need to check exact completion values (they may change
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# depending on the state of the namespace, but at least no exceptions
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# should be thrown and the return value should be a pair of text, list
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# values.
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text, matches = ip.complete(t)
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nt.assert_true(isinstance(text, basestring))
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nt.assert_true(isinstance(matches, list))
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class CompletionSplitterTestCase(unittest.TestCase):
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def setUp(self):
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self.sp = completer.CompletionSplitter()
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def test_delim_setting(self):
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self.sp.set_delims(' ')
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nt.assert_equal(self.sp.get_delims(), ' ')
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nt.assert_equal(self.sp._delim_expr, '[\ ]')
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def test_spaces(self):
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"""Test with only spaces as split chars."""
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self.sp.delims = ' '
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t = [('foo', '', 'foo'),
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('run foo', '', 'foo'),
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('run foo', 'bar', 'foo'),
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]
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check_line_split(self.sp, t)
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