bpython/bpython/test/test_autocomplete.py at master · allgo27/bpython · GitHub

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# encoding: utf-8

from collections import namedtuple

import inspect

import keyword

import sys

try:

import unittest2 as unittest

except ImportError:

import unittest

try:

import jedi

has_jedi = True

except ImportError:

has_jedi = False

from bpython import autocomplete

from bpython._py3compat import py3

from bpython.test import mock

if py3:

glob_function = "glob.iglob"

else:

glob_function = "glob.glob"

class TestSafeEval(unittest.TestCase):

def test_catches_syntax_error(self):

with self.assertRaises(autocomplete.EvaluationError):

autocomplete.safe_eval("1re", {})

class TestFormatters(unittest.TestCase):

def test_filename(self):

completer = autocomplete.FilenameCompletion()

last_part_of_filename = completer.format

self.assertEqual(last_part_of_filename("abc"), "abc")

self.assertEqual(last_part_of_filename("abc/"), "abc/")

self.assertEqual(last_part_of_filename("abc/efg"), "efg")

self.assertEqual(last_part_of_filename("abc/efg/"), "efg/")

self.assertEqual(last_part_of_filename("/abc"), "abc")

self.assertEqual(last_part_of_filename("ab.c/e.f.g/"), "e.f.g/")

def test_attribute(self):

self.assertEqual(autocomplete.after_last_dot("abc.edf"), "edf")

def completer(matches):

mock_completer = autocomplete.BaseCompletionType()

mock_completer.matches = mock.Mock(return_value=matches)

return mock_completer

class TestGetCompleter(unittest.TestCase):

def test_no_completers(self):

self.assertTupleEqual(autocomplete.get_completer([], 0, ""), ([], None))

def test_one_completer_without_matches_returns_empty_list_and_none(self):

a = completer([])

self.assertTupleEqual(

autocomplete.get_completer([a], 0, ""), ([], None)

)

def test_one_completer_returns_matches_and_completer(self):

a = completer(["a"])

self.assertTupleEqual(

autocomplete.get_completer([a], 0, ""), (["a"], a)

)

def test_two_completers_with_matches_returns_first_matches(self):

a = completer(["a"])

b = completer(["b"])

self.assertEqual(autocomplete.get_completer([a, b], 0, ""), (["a"], a))

def test_first_non_none_completer_matches_are_returned(self):

a = completer([])

b = completer(["a"])

self.assertEqual(autocomplete.get_completer([a, b], 0, ""), ([], None))

def test_only_completer_returns_None(self):

a = completer(None)

self.assertEqual(autocomplete.get_completer([a], 0, ""), ([], None))

def test_first_completer_returns_None(self):

a = completer(None)

b = completer(["a"])

self.assertEqual(autocomplete.get_completer([a, b], 0, ""), (["a"], b))

class TestCumulativeCompleter(unittest.TestCase):

def completer(

self, matches,

mock_completer = autocomplete.BaseCompletionType()

mock_completer.matches = mock.Mock(return_value=matches)

return mock_completer

def test_no_completers_fails(self):

with self.assertRaises(ValueError):

autocomplete.CumulativeCompleter([])

def test_one_empty_completer_returns_empty(self):

a = self.completer([])

cumulative = autocomplete.CumulativeCompleter([a])

self.assertEqual(cumulative.matches(3, "abc"), set())

def test_one_none_completer_returns_none(self):

a = self.completer(None)

cumulative = autocomplete.CumulativeCompleter([a])

self.assertEqual(cumulative.matches(3, "abc"), None)

def test_two_completers_get_both(self):

a = self.completer(["a"])

b = self.completer(["b"])

cumulative = autocomplete.CumulativeCompleter([a, b])

self.assertEqual(cumulative.matches(3, "abc"), set(["a", "b"]))

class TestFilenameCompletion(unittest.TestCase):

def setUp(self):

self.completer = autocomplete.FilenameCompletion()

def test_locate_fails_when_not_in_string(self):

self.assertEqual(self.completer.locate(4, "abcd"), None)

def test_locate_succeeds_when_in_string(self):

self.assertEqual(self.completer.locate(4, "a'bc'd"), (2, 4, "bc"))

def test_issue_491(self):

self.assertNotEqual(self.completer.matches(9, '"a[a.l-1]'), None)

@mock.patch(glob_function, new=lambda text: [])

def test_match_returns_none_if_not_in_string(self):

self.assertEqual(self.completer.matches(2, "abcd"), None)

@mock.patch(glob_function, new=lambda text: [])

def test_match_returns_empty_list_when_no_files(self):

self.assertEqual(self.completer.matches(2, '"a'), set())

@mock.patch(glob_function, new=lambda text: ["abcde", "aaaaa"])

@mock.patch("os.path.expanduser", new=lambda text: text)

@mock.patch("os.path.isdir", new=lambda text: False)

@mock.patch("os.path.sep", new="/")

def test_match_returns_files_when_files_exist(self):

self.assertEqual(

sorted(self.completer.matches(2, '"x')), ["aaaaa", "abcde"]

)

@mock.patch(glob_function, new=lambda text: ["abcde", "aaaaa"])

@mock.patch("os.path.expanduser", new=lambda text: text)

@mock.patch("os.path.isdir", new=lambda text: True)

@mock.patch("os.path.sep", new="/")

def test_match_returns_dirs_when_dirs_exist(self):

self.assertEqual(

sorted(self.completer.matches(2, '"x')), ["aaaaa/", "abcde/"]

)

@mock.patch(

glob_function, new=lambda text: ["/expand/ed/abcde", "/expand/ed/aaaaa"]

)

@mock.patch(

"os.path.expanduser", new=lambda text: text.replace("~", "/expand/ed")

)

@mock.patch("os.path.isdir", new=lambda text: False)

@mock.patch("os.path.sep", new="/")

def test_tilde_stays_pretty(self):

self.assertEqual(

sorted(self.completer.matches(4, '"~/a')), ["~/aaaaa", "~/abcde"]

)

@mock.patch("os.path.sep", new="/")

def test_formatting_takes_just_last_part(self):

self.assertEqual(self.completer.format("/hello/there/"), "there/")

self.assertEqual(self.completer.format("/hello/there"), "there")

class MockNumPy(object):

"""This is a mock numpy object that raises an error when there is an attempt

to convert it to a boolean."""

def __nonzero__(self):

raise ValueError(

"The truth value of an array with more than one "

"element is ambiguous. Use a.any() or a.all()"

)

class TestDictKeyCompletion(unittest.TestCase):

def test_set_of_keys_returned_when_matches_found(self):