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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 os
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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.config.loader import Config
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from IPython.core import completer
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from IPython.external.decorators import knownfailureif
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from IPython.utils.tempdir import TemporaryDirectory
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from IPython.utils.generics import complete_object
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from IPython.utils import py3compat
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from IPython.utils.py3compat import string_types, unicode_type
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from IPython.testing import decorators as dec
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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 and other special characters
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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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('a[1]bc', r'a\[1\]bc'),
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('a{1}bc', r'a\{1\}bc'),
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('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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('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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('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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('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_equal(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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"""Basic 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_type, p) for p in t] )
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def test_custom_completion_error():
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"""Test that errors from custom attribute completers are silenced."""
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ip = get_ipython()
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class A(object): pass
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ip.user_ns['a'] = A()
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@complete_object.when_type(A)
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def complete_A(a, existing_completions):
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raise TypeError("this should be silenced")
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ip.complete("a.")
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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 + list(map(unicode_type, 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, string_types))
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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.delims = ' '
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nt.assert_equal(self.sp.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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def test_has_open_quotes1():
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for s in ["'", "'''", "'hi' '"]:
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nt.assert_equal(completer.has_open_quotes(s), "'")
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def test_has_open_quotes2():
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for s in ['"', '"""', '"hi" "']:
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nt.assert_equal(completer.has_open_quotes(s), '"')
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def test_has_open_quotes3():
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for s in ["''", "''' '''", "'hi' 'ipython'"]:
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nt.assert_false(completer.has_open_quotes(s))
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def test_has_open_quotes4():
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for s in ['""', '""" """', '"hi" "ipython"']:
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nt.assert_false(completer.has_open_quotes(s))
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@knownfailureif(sys.platform == 'win32', "abspath completions fail on Windows")
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def test_abspath_file_completions():
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ip = get_ipython()
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with TemporaryDirectory() as tmpdir:
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prefix = os.path.join(tmpdir, 'foo')
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suffixes = ['1', '2']
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names = [prefix+s for s in suffixes]
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for n in names:
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open(n, 'w').close()
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# Check simple completion
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c = ip.complete(prefix)[1]
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nt.assert_equal(c, names)
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# Now check with a function call
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cmd = 'a = f("%s' % prefix
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c = ip.complete(prefix, cmd)[1]
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comp = [prefix+s for s in suffixes]
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nt.assert_equal(c, comp)
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def test_local_file_completions():
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ip = get_ipython()
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cwd = py3compat.getcwd()
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try:
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with TemporaryDirectory() as tmpdir:
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os.chdir(tmpdir)
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prefix = './foo'
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suffixes = ['1', '2']
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names = [prefix+s for s in suffixes]
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for n in names:
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open(n, 'w').close()
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# Check simple completion
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c = ip.complete(prefix)[1]
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nt.assert_equal(c, names)
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# Now check with a function call
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cmd = 'a = f("%s' % prefix
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c = ip.complete(prefix, cmd)[1]
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comp = [prefix+s for s in suffixes]
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nt.assert_equal(c, comp)
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finally:
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# prevent failures from making chdir stick
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os.chdir(cwd)
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def test_greedy_completions():
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ip = get_ipython()
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greedy_original = ip.Completer.greedy
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try:
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ip.Completer.greedy = False
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ip.ex('a=list(range(5))')
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_,c = ip.complete('.',line='a[0].')
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nt.assert_false('a[0].real' in c,
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"Shouldn't have completed on a[0]: %s"%c)
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ip.Completer.greedy = True
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_,c = ip.complete('.',line='a[0].')
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nt.assert_true('a[0].real' in c, "Should have completed on a[0]: %s"%c)
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finally:
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ip.Completer.greedy = greedy_original
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def test_omit__names():
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# also happens to test IPCompleter as a configurable
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ip = get_ipython()
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ip._hidden_attr = 1
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c = ip.Completer
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ip.ex('ip=get_ipython()')
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cfg = Config()
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cfg.IPCompleter.omit__names = 0
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c.update_config(cfg)
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s,matches = c.complete('ip.')
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nt.assert_in('ip.__str__', matches)
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nt.assert_in('ip._hidden_attr', matches)
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cfg.IPCompleter.omit__names = 1
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c.update_config(cfg)
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s,matches = c.complete('ip.')
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nt.assert_not_in('ip.__str__', matches)
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nt.assert_in('ip._hidden_attr', matches)
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cfg.IPCompleter.omit__names = 2
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c.update_config(cfg)
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s,matches = c.complete('ip.')
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nt.assert_not_in('ip.__str__', matches)
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nt.assert_not_in('ip._hidden_attr', matches)
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del ip._hidden_attr
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def test_limit_to__all__False_ok():
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ip = get_ipython()
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c = ip.Completer
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ip.ex('class D: x=24')
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ip.ex('d=D()')
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cfg = Config()
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cfg.IPCompleter.limit_to__all__ = False
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c.update_config(cfg)
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s, matches = c.complete('d.')
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nt.assert_in('d.x', matches)
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def test_limit_to__all__True_ok():
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ip = get_ipython()
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c = ip.Completer
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ip.ex('class D: x=24')
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ip.ex('d=D()')
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ip.ex("d.__all__=['z']")
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cfg = Config()
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cfg.IPCompleter.limit_to__all__ = True
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c.update_config(cfg)
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s, matches = c.complete('d.')
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nt.assert_in('d.z', matches)
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nt.assert_not_in('d.x', matches)
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def test_get__all__entries_ok():
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class A(object):
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__all__ = ['x', 1]
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words = completer.get__all__entries(A())
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nt.assert_equal(words, ['x'])
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def test_get__all__entries_no__all__ok():
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class A(object):
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pass
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words = completer.get__all__entries(A())
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nt.assert_equal(words, [])
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def test_func_kw_completions():
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ip = get_ipython()
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c = ip.Completer
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ip.ex('def myfunc(a=1,b=2): return a+b')
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s, matches = c.complete(None, 'myfunc(1,b')
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nt.assert_in('b=', matches)
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# Simulate completing with cursor right after b (pos==10):
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s, matches = c.complete(None, 'myfunc(1,b)', 10)
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nt.assert_in('b=', matches)
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s, matches = c.complete(None, 'myfunc(a="escaped\\")string",b')
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nt.assert_in('b=', matches)
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#builtin function
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s, matches = c.complete(None, 'min(k, k')
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nt.assert_in('key=', matches)
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def test_default_arguments_from_docstring():
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doc = min.__doc__
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ip = get_ipython()
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c = ip.Completer
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kwd = c._default_arguments_from_docstring(
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'min(iterable[, key=func]) -> value')
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nt.assert_equal(kwd, ['key'])
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#with cython type etc
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kwd = c._default_arguments_from_docstring(
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'Minuit.migrad(self, int ncall=10000, resume=True, int nsplit=1)\n')
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nt.assert_equal(kwd, ['ncall', 'resume', 'nsplit'])
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#white spaces
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kwd = c._default_arguments_from_docstring(
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'\n Minuit.migrad(self, int ncall=10000, resume=True, int nsplit=1)\n')
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nt.assert_equal(kwd, ['ncall', 'resume', 'nsplit'])
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def test_line_magics():
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ip = get_ipython()
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c = ip.Completer
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s, matches = c.complete(None, 'lsmag')
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nt.assert_in('%lsmagic', matches)
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s, matches = c.complete(None, '%lsmag')
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nt.assert_in('%lsmagic', matches)
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def test_cell_magics():
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from IPython.core.magic import register_cell_magic
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@register_cell_magic
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def _foo_cellm(line, cell):
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pass
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ip = get_ipython()
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c = ip.Completer
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s, matches = c.complete(None, '_foo_ce')
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nt.assert_in('%%_foo_cellm', matches)
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s, matches = c.complete(None, '%%_foo_ce')
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nt.assert_in('%%_foo_cellm', matches)
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def test_line_cell_magics():
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from IPython.core.magic import register_line_cell_magic
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@register_line_cell_magic
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def _bar_cellm(line, cell):
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pass
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ip = get_ipython()
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c = ip.Completer
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# The policy here is trickier, see comments in completion code. The
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# returned values depend on whether the user passes %% or not explicitly,
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# and this will show a difference if the same name is both a line and cell
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# magic.
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s, matches = c.complete(None, '_bar_ce')
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nt.assert_in('%_bar_cellm', matches)
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nt.assert_in('%%_bar_cellm', matches)
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s, matches = c.complete(None, '%_bar_ce')
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nt.assert_in('%_bar_cellm', matches)
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nt.assert_in('%%_bar_cellm', matches)
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s, matches = c.complete(None, '%%_bar_ce')
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nt.assert_not_in('%_bar_cellm', matches)
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nt.assert_in('%%_bar_cellm', matches)
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def test_magic_completion_order():
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ip = get_ipython()
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c = ip.Completer
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# Test ordering of magics and non-magics with the same name
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# We want the non-magic first
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# Before importing matplotlib, there should only be one option:
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text, matches = c.complete('mat')
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nt.assert_equal(matches, ["%matplotlib"])
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ip.run_cell("matplotlib = 1") # introduce name into namespace
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# After the import, there should be two options, ordered like this:
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text, matches = c.complete('mat')
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nt.assert_equal(matches, ["matplotlib", "%matplotlib"])
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ip.run_cell("timeit = 1") # define a user variable called 'timeit'
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# Order of user variable and line and cell magics with same name:
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text, matches = c.complete('timeit')
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nt.assert_equal(matches, ["timeit", "%timeit","%%timeit"])
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def test_dict_key_completion_string():
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"""Test dictionary key completion for string keys"""
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ip = get_ipython()
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complete = ip.Completer.complete
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ip.user_ns['d'] = {'abc': None}
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# check completion at different stages
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_, matches = complete(line_buffer="d[")
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nt.assert_in("'abc']", matches)
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_, matches = complete(line_buffer="d['")
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nt.assert_in("abc']", matches)
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_, matches = complete(line_buffer="d['a")
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nt.assert_in("abc']", matches)
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# check use of different quoting
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_, matches = complete(line_buffer="d[\"")
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nt.assert_in("abc\"]", matches)
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_, matches = complete(line_buffer="d[\"a")
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nt.assert_in("abc\"]", matches)
|
|
|
|
|
|
# check sensitivity to following context
|
|
|
_, matches = complete(line_buffer="d[]", cursor_pos=2)
|
|
|
nt.assert_in("'abc'", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d['']", cursor_pos=3)
|
|
|
nt.assert_in("abc", matches)
|
|
|
|
|
|
# check multiple solutions are correctly returned and that noise is not
|
|
|
ip.user_ns['d'] = {'abc': None, 'abd': None, 'bad': None, object(): None,
|
|
|
5: None}
|
|
|
|
|
|
_, matches = complete(line_buffer="d['a")
|
|
|
nt.assert_in("abc']", matches)
|
|
|
nt.assert_in("abd']", matches)
|
|
|
nt.assert_not_in("bad']", matches)
|
|
|
|
|
|
# check escaping and whitespace
|
|
|
ip.user_ns['d'] = {'a\nb': None, 'a\'b': None, 'a"b': None, 'a word': None}
|
|
|
_, matches = complete(line_buffer="d['a")
|
|
|
nt.assert_in("a\\nb']", matches)
|
|
|
nt.assert_in("a\\'b']", matches)
|
|
|
nt.assert_in("a\"b']", matches)
|
|
|
nt.assert_in("a word']", matches)
|
|
|
|
|
|
# - can complete on non-initial word of the string
|
|
|
_, matches = complete(line_buffer="d['a w")
|
|
|
nt.assert_in("word']", matches)
|
|
|
|
|
|
# - understands quote escaping
|
|
|
_, matches = complete(line_buffer="d['a\\'")
|
|
|
nt.assert_in("b']", matches)
|
|
|
|
|
|
# - default quoting should work like repr
|
|
|
_, matches = complete(line_buffer="d[")
|
|
|
nt.assert_in("\"a'b\"]", matches)
|
|
|
|
|
|
# - when opening quote with ", possible to match with unescaped apostrophe
|
|
|
_, matches = complete(line_buffer="d[\"a'")
|
|
|
nt.assert_in("b\"]", matches)
|
|
|
|
|
|
|
|
|
def test_dict_key_completion_contexts():
|
|
|
"""Test expression contexts in which dict key completion occurs"""
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
d = {'abc': None}
|
|
|
ip.user_ns['d'] = d
|
|
|
|
|
|
class C:
|
|
|
data = d
|
|
|
ip.user_ns['C'] = C
|
|
|
ip.user_ns['get'] = lambda: d
|
|
|
|
|
|
def assert_no_completion(**kwargs):
|
|
|
_, matches = complete(**kwargs)
|
|
|
nt.assert_not_in('abc', matches)
|
|
|
nt.assert_not_in('abc\'', matches)
|
|
|
nt.assert_not_in('abc\']', matches)
|
|
|
nt.assert_not_in('\'abc\'', matches)
|
|
|
nt.assert_not_in('\'abc\']', matches)
|
|
|
|
|
|
def assert_completion(**kwargs):
|
|
|
_, matches = complete(**kwargs)
|
|
|
nt.assert_in("'abc']", matches)
|
|
|
|
|
|
# no completion after string closed, even if reopened
|
|
|
ip.Completer.greedy = False
|
|
|
assert_no_completion(line_buffer="d['a'")
|
|
|
assert_no_completion(line_buffer="d[\"a\"")
|
|
|
assert_no_completion(line_buffer="d['a' + ")
|
|
|
assert_no_completion(line_buffer="d['a' + '")
|
|
|
|
|
|
# completion in non-trivial expressions
|
|
|
assert_completion(line_buffer="+ d[")
|
|
|
assert_completion(line_buffer="(d[")
|
|
|
assert_completion(line_buffer="C.data[")
|
|
|
|
|
|
# greedy flag
|
|
|
assert_no_completion(line_buffer="get()[")
|
|
|
ip.Completer.greedy = True
|
|
|
assert_completion(line_buffer="get()[")
|
|
|
|
|
|
|
|
|
|
|
|
@dec.onlyif(sys.version_info[0] >= 3, 'This test only applies in Py>=3')
|
|
|
def test_dict_key_completion_bytes():
|
|
|
"""Test handling of bytes in dict key completion"""
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
|
|
|
ip.user_ns['d'] = {'abc': None, b'abd': None}
|
|
|
|
|
|
_, matches = complete(line_buffer="d[")
|
|
|
nt.assert_in("'abc']", matches)
|
|
|
nt.assert_in("b'abd']", matches)
|
|
|
|
|
|
if False: # not currently implemented
|
|
|
_, matches = complete(line_buffer="d[b")
|
|
|
nt.assert_in("b'abd']", matches)
|
|
|
nt.assert_not_in("b'abc']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d[b'")
|
|
|
nt.assert_in("abd']", matches)
|
|
|
nt.assert_not_in("abc']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d[B'")
|
|
|
nt.assert_in("abd']", matches)
|
|
|
nt.assert_not_in("abc']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d['")
|
|
|
nt.assert_in("abc']", matches)
|
|
|
nt.assert_not_in("abd']", matches)
|
|
|
|
|
|
|
|
|
@dec.onlyif(sys.version_info[0] < 3, 'This test only applies in Py<3')
|
|
|
def test_dict_key_completion_unicode_py2():
|
|
|
"""Test handling of unicode in dict key completion"""
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
|
|
|
ip.user_ns['d'] = {u'abc': None,
|
|
|
unicode_type('a\xd7\x90', 'utf8'): None}
|
|
|
|
|
|
_, matches = complete(line_buffer="d[")
|
|
|
nt.assert_in("u'abc']", matches)
|
|
|
nt.assert_in("u'a\\u05d0']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d['a")
|
|
|
nt.assert_in("abc']", matches)
|
|
|
nt.assert_not_in("a\\u05d0']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d[u'a")
|
|
|
nt.assert_in("abc']", matches)
|
|
|
nt.assert_in("a\\u05d0']", matches)
|
|
|
|
|
|
_, matches = complete(line_buffer="d[U'a")
|
|
|
nt.assert_in("abc']", matches)
|
|
|
nt.assert_in("a\\u05d0']", matches)
|
|
|
|
|
|
# query using escape
|
|
|
_, matches = complete(line_buffer="d[u'a\\u05d0")
|
|
|
nt.assert_in("u05d0']", matches) # tokenized after \\
|
|
|
|
|
|
# query using character
|
|
|
_, matches = complete(line_buffer=unicode_type("d[u'a\xd7\x90", 'utf8'))
|
|
|
nt.assert_in("']", matches)
|
|
|
|
|
|
|
|
|
@dec.onlyif(sys.version_info[0] >= 3, 'This test only applies in Py>=3')
|
|
|
def test_dict_key_completion_unicode_py3():
|
|
|
"""Test handling of unicode in dict key completion"""
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
|
|
|
ip.user_ns['d'] = {unicode_type(b'a\xd7\x90', 'utf8'): None}
|
|
|
|
|
|
# query using escape
|
|
|
_, matches = complete(line_buffer="d['a\\u05d0")
|
|
|
nt.assert_in("u05d0']", matches) # tokenized after \\
|
|
|
|
|
|
# query using character
|
|
|
_, matches = complete(line_buffer=unicode_type(b"d['a\xd7\x90", 'utf8'))
|
|
|
nt.assert_in(unicode_type(b"a\xd7\x90']", 'utf8'), matches)
|
|
|
|
|
|
|
|
|
@dec.skip_without('numpy')
|
|
|
def test_struct_array_key_completion():
|
|
|
"""Test dict key completion applies to numpy struct arrays"""
|
|
|
import numpy
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
ip.user_ns['d'] = numpy.array([], dtype=[('hello', 'f'), ('world', 'f')])
|
|
|
_, matches = complete(line_buffer="d['")
|
|
|
nt.assert_in("hello']", matches)
|
|
|
nt.assert_in("world']", matches)
|
|
|
|
|
|
|
|
|
@dec.skip_without('pandas')
|
|
|
def test_dataframe_key_completion():
|
|
|
"""Test dict key completion applies to pandas DataFrames"""
|
|
|
import pandas
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
ip.user_ns['d'] = pandas.DataFrame({'hello': [1], 'world': [2]})
|
|
|
_, matches = complete(line_buffer="d['")
|
|
|
nt.assert_in("hello']", matches)
|
|
|
nt.assert_in("world']", matches)
|
|
|
|
|
|
|
|
|
def test_dict_key_completion_invalids():
|
|
|
"""Smoke test cases dict key completion can't handle"""
|
|
|
ip = get_ipython()
|
|
|
complete = ip.Completer.complete
|
|
|
|
|
|
ip.user_ns['no_getitem'] = None
|
|
|
ip.user_ns['no_keys'] = []
|
|
|
ip.user_ns['cant_call_keys'] = dict
|
|
|
ip.user_ns['empty'] = {}
|
|
|
ip.user_ns['d'] = {'abc': 5}
|
|
|
|
|
|
_, matches = complete(line_buffer="no_getitem['")
|
|
|
_, matches = complete(line_buffer="no_keys['")
|
|
|
_, matches = complete(line_buffer="cant_call_keys['")
|
|
|
_, matches = complete(line_buffer="empty['")
|
|
|
_, matches = complete(line_buffer="name_error['")
|
|
|
_, matches = complete(line_buffer="d['\\") # incomplete escape
|
|
|
|
