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test_regression.py
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test_regression.py
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"""
Unit tests to avoid errors of the past. These are also all tests that didn't
found a good place in any other testing module.
"""
import os
import sys
import textwrap
import pytest
from jedi import Script
from jedi import api
from jedi.evaluate import imports
from .helpers import TestCase, cwd_at
#jedi.set_debug_function()
class TestRegression(TestCase):
def test_goto_definition_cursor(self):
s = ("class A():\n"
" def _something(self):\n"
" return\n"
" def different_line(self,\n"
" b):\n"
" return\n"
"A._something\n"
"A.different_line"
)
in_name = 2, 9
under_score = 2, 8
cls = 2, 7
should1 = 7, 10
diff_line = 4, 10
should2 = 8, 10
def get_def(pos):
return [d.description for d in Script(s, *pos).goto_definitions()]
in_name = get_def(in_name)
under_score = get_def(under_score)
should1 = get_def(should1)
should2 = get_def(should2)
diff_line = get_def(diff_line)
assert should1 == in_name
assert should1 == under_score
assert should2 == diff_line
assert get_def(cls) == []
@pytest.mark.skipif('True', reason='Skip for now, test case is not really supported.')
@cwd_at('jedi')
def test_add_dynamic_mods(self):
fname = '__main__.py'
api.settings.additional_dynamic_modules = [fname]
# Fictional module that defines a function.
src1 = "def r(a): return a"
# Other fictional modules in another place in the fs.
src2 = 'from .. import setup; setup.r(1)'
script = Script(src1, path='../setup.py')
imports.load_module(script._evaluator, os.path.abspath(fname), src2)
result = script.goto_definitions()
assert len(result) == 1
assert result[0].description == 'class int'
def test_os_nowait(self):
""" github issue #45 """
s = Script("import os; os.P_").completions()
assert 'P_NOWAIT' in [i.name for i in s]
def test_points_in_completion(self):
"""At some point, points were inserted into the completions, this
caused problems, sometimes.
"""
c = Script("if IndentationErr").completions()
assert c[0].name == 'IndentationError'
self.assertEqual(c[0].complete, 'or')
def test_no_statement_parent(self):
source = textwrap.dedent("""
def f():
pass
class C:
pass
variable = f if random.choice([0, 1]) else C""")
defs = Script(source, column=3).goto_definitions()
defs = sorted(defs, key=lambda d: d.line)
self.assertEqual([d.description for d in defs],
['def f', 'class C'])
def check_definition_by_marker(self, source, after_cursor, names):
r"""
Find definitions specified by `after_cursor` and check what found
For example, for the following configuration, you can pass
``after_cursor = 'y)'``.::
function(
x, y)
\
`- You want cursor to be here
"""
source = textwrap.dedent(source)
for (i, line) in enumerate(source.splitlines()):
if after_cursor in line:
break
column = len(line) - len(after_cursor)
defs = Script(source, i + 1, column).goto_definitions()
assert [d.name for d in defs] == names
def test_backslash_continuation(self):
"""
Test that ModuleWithCursor.get_path_until_cursor handles continuation
"""
self.check_definition_by_marker(r"""
x = 0
a = \
[1, 2, 3, 4, 5, 6, 7, 8, 9, x] # <-- here
""", '] # <-- here', ['int'])
# completion in whitespace
s = 'asdfxyxxxxxxxx sds\\\n hello'
assert Script(s, 2, 4).goto_assignments() == []
def test_backslash_continuation_and_bracket(self):
self.check_definition_by_marker(r"""
x = 0
a = \
[1, 2, 3, 4, 5, 6, 7, 8, 9, (x)] # <-- here
""", '(x)] # <-- here', ['int'])
def test_generator(self):
# Did have some problems with the usage of generator completions this
# way.
s = "def abc():\n" \
" yield 1\n" \
"abc()."
assert Script(s).completions()
def test_fake_subnodes(self):
"""
Test the number of subnodes of a fake object.
There was a bug where the number of child nodes would grow on every
call to :func:``jedi.evaluate.compiled.fake.get_faked``.
See Github PR#649 and isseu #591.
"""
def get_str_completion(values):
for c in values:
if c.name == 'str':
return c
limit = None
for i in range(2):
completions = Script('').completions()
c = get_str_completion(completions)
str_context, = c._name.infer()
n = len(str_context.tree_node.children[-1].children)
if i == 0:
limit = n
else:
assert n == limit
def test_loading_unicode_files_with_bad_global_charset(monkeypatch, tmpdir):
dirname = str(tmpdir.mkdir('jedi-test'))
filename1 = os.path.join(dirname, 'test1.py')
filename2 = os.path.join(dirname, 'test2.py')
if sys.version_info < (3, 0):
data = "# coding: latin-1\nfoo = 'm\xf6p'\n"
else:
data = "# coding: latin-1\nfoo = 'm\xf6p'\n".encode("latin-1")
with open(filename1, "wb") as f:
f.write(data)
s = Script("from test1 import foo\nfoo.",
line=2, column=4, path=filename2)
s.completions()