forked from VimPlug/jedi
668 lines
19 KiB
Python
668 lines
19 KiB
Python
import sys
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from textwrap import dedent
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import inspect
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import pytest
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from ..helpers import TestCase
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from jedi import cache
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from jedi.parser_utils import get_signature
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from jedi import Interpreter
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def assert_signature(Script, source, expected_name, expected_index=0, line=None, column=None):
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signatures = Script(source).find_signatures(line, column)
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assert len(signatures) <= 1
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if not signatures:
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assert expected_name is None, \
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'There are no signatures, but `%s` expected.' % expected_name
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else:
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assert signatures[0].name == expected_name
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assert signatures[0].index == expected_index
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return signatures[0]
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def test_valid_call(Script):
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assert_signature(Script, 'bool()', 'bool', column=5)
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class TestSignatures(TestCase):
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@pytest.fixture(autouse=True)
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def init(self, Script):
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self.Script = Script
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def _run_simple(self, source, name, index=0, column=None, line=1):
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assert_signature(self.Script, source, name, index, line, column)
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def test_simple(self):
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run = self._run_simple
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# simple
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s1 = "sorted(a, bool("
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run(s1, 'sorted', 0, 7)
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run(s1, 'sorted', 1, 9)
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run(s1, 'sorted', 1, 10)
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run(s1, 'sorted', None, 11)
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run(s1, 'bool', 0, 15)
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s2 = "abs(), "
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run(s2, 'abs', 0, 4)
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run(s2, None, column=5)
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run(s2, None)
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s3 = "abs()."
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run(s3, None, column=5)
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run(s3, None)
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def test_more_complicated(self):
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run = self._run_simple
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s4 = 'abs(bool(), , set,'
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run(s4, None, column=3)
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run(s4, 'abs', 0, 4)
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run(s4, 'bool', 0, 9)
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run(s4, 'abs', 0, 10)
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run(s4, 'abs', None, 11)
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s5 = "sorted(1,\nif 2:\n def a():"
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run(s5, 'sorted', 0, 7)
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run(s5, 'sorted', 1, 9)
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s6 = "bool().__eq__("
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run(s6, '__eq__', 0)
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run(s6, 'bool', 0, 5)
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s7 = "str().upper().center("
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s8 = "bool(int[abs("
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run(s7, 'center', 0)
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run(s8, 'abs', 0)
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run(s8, 'bool', 0, 10)
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run("import time; abc = time; abc.sleep(", 'sleep', 0)
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def test_issue_57(self):
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# jedi #57
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s = "def func(alpha, beta): pass\n" \
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"func(alpha='101',"
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self._run_simple(s, 'func', 0, column=13, line=2)
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def test_for(self):
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# jedi-vim #11
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self._run_simple("for sorted(", 'sorted', 0)
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self._run_simple("for s in sorted(", 'sorted', 0)
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def test_with(Script):
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# jedi-vim #9
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sigs = Script("with open(").find_signatures()
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assert sigs
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assert all(sig.name == 'open' for sig in sigs)
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def test_find_signatures_empty_parentheses_pre_space(Script):
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s = dedent("""\
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def f(a, b):
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pass
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f( )""")
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assert_signature(Script, s, 'f', 0, line=3, column=3)
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def test_multiple_signatures(Script):
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s = dedent("""\
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if x:
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def f(a, b):
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pass
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else:
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def f(a, b):
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pass
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f(""")
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assert len(Script(s).find_signatures()) == 2
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def test_find_signatures_whitespace(Script):
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s = dedent("""\
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abs(
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def x():
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pass
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""")
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assert_signature(Script, s, 'abs', 0, line=1, column=5)
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def test_decorator_in_class(Script):
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"""
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There's still an implicit param, with a decorator.
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Github issue #319.
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"""
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s = dedent("""\
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def static(func):
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def wrapped(obj, *args):
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return f(type(obj), *args)
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return wrapped
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class C(object):
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@static
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def test(cls):
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return 10
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C().test(""")
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signatures = Script(s).find_signatures()
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assert len(signatures) == 1
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x = [p.description for p in signatures[0].params]
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assert x == ['param *args']
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def test_additional_brackets(Script):
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assert_signature(Script, 'abs((', 'abs', 0)
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def test_unterminated_strings(Script):
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assert_signature(Script, 'abs(";', 'abs', 0)
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def test_whitespace_before_bracket(Script):
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assert_signature(Script, 'abs (', 'abs', 0)
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assert_signature(Script, 'abs (";', 'abs', 0)
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assert_signature(Script, 'abs\n(', None)
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def test_brackets_in_string_literals(Script):
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assert_signature(Script, 'abs (" (', 'abs', 0)
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assert_signature(Script, 'abs (" )', 'abs', 0)
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def test_function_definitions_should_break(Script):
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"""
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Function definitions (and other tokens that cannot exist within call
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signatures) should break and not be able to return a signature.
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"""
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assert_signature(Script, 'abs(\ndef x', 'abs', 0)
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assert not Script('abs(\ndef x(): pass').find_signatures()
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def test_flow_call(Script):
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assert not Script('if (1').find_signatures()
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def test_chained_calls(Script):
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source = dedent('''
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class B():
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def test2(self, arg):
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pass
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class A():
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def test1(self):
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return B()
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A().test1().test2(''')
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assert_signature(Script, source, 'test2', 0)
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def test_return(Script):
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source = dedent('''
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def foo():
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return '.'.join()''')
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assert_signature(Script, source, 'join', 0, column=len(" return '.'.join("))
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def test_find_signature_on_module(Script):
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"""github issue #240"""
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s = 'import datetime; datetime('
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# just don't throw an exception (if numpy doesn't exist, just ignore it)
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assert Script(s).find_signatures() == []
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def test_complex(Script, environment):
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s = """
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def abc(a,b):
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pass
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def a(self):
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abc(
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if 1:
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pass
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"""
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assert_signature(Script, s, 'abc', 0, line=6, column=20)
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s = """
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import re
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def huhu(it):
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re.compile(
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return it * 2
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"""
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sig1, sig2 = sorted(Script(s).find_signatures(line=4, column=27), key=lambda s: s.line)
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assert sig1.name == sig2.name == 'compile'
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assert sig1.index == sig2.index == 0
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func1, = sig1._name.infer()
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func2, = sig2._name.infer()
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if environment.version_info.major == 3:
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# Do these checks just for Python 3, I'm too lazy to deal with this
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# legacy stuff. ~ dave.
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assert get_signature(func1.tree_node) \
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== 'compile(pattern: AnyStr, flags: _FlagsType = ...) -> Pattern[AnyStr]'
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assert get_signature(func2.tree_node) \
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== 'compile(pattern: Pattern[AnyStr], flags: _FlagsType = ...) ->\nPattern[AnyStr]'
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# jedi-vim #70
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s = """def foo("""
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assert Script(s).find_signatures() == []
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# jedi-vim #116
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s = """import itertools; test = getattr(itertools, 'chain'); test("""
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assert_signature(Script, s, 'chain', 0)
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def _params(Script, source, line=None, column=None):
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signatures = Script(source, line, column).find_signatures()
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assert len(signatures) == 1
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return signatures[0].params
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def test_int_params(Script):
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sig1, sig2 = Script('int(').find_signatures()
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# int is defined as: `int(x[, base])`
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assert len(sig1.params) == 1
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assert sig1.params[0].name == 'x'
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assert len(sig2.params) == 2
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assert sig2.params[0].name == 'x'
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assert sig2.params[1].name == 'base'
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def test_pow_params(Script):
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# See Github #1357.
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for sig in Script('pow(').find_signatures():
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param_names = [p.name for p in sig.params]
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assert param_names in (['x', 'y'], ['x', 'y', 'z'])
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def test_param_name(Script):
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sigs = Script('open(something,').find_signatures()
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for sig in sigs:
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# All of the signatures (in Python the function is overloaded),
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# contain the same param names.
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assert sig.params[0].name in ['file', 'name']
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assert sig.params[1].name == 'mode'
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assert sig.params[2].name == 'buffering'
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def test_builtins(Script):
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"""
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The self keyword should be visible even for builtins, if not
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instantiated.
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"""
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p = _params(Script, 'str.endswith(')
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assert p[0].name == 'self'
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assert p[1].name == 'suffix'
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p = _params(Script, 'str().endswith(')
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assert p[0].name == 'suffix'
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def test_signature_is_definition(Script):
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"""
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Through inheritance, a signature is a sub class of Definition.
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Check if the attributes match.
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"""
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s = """class Spam(): pass\nSpam"""
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signature = Script(s + '(').find_signatures()[0]
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definition = Script(s + '(').infer(column=0)[0]
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signature.line == 1
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signature.column == 6
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# Now compare all the attributes that a Signature must also have.
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for attr_name in dir(definition):
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dont_scan = ['defined_names', 'parent', 'goto_assignments', 'infer',
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'params', 'get_signatures', 'execute', 'goto']
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if attr_name.startswith('_') or attr_name in dont_scan:
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continue
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attribute = getattr(definition, attr_name)
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signature_attribute = getattr(signature, attr_name)
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if inspect.ismethod(attribute):
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assert attribute() == signature_attribute()
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else:
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assert attribute == signature_attribute
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def test_no_signature(Script):
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# str doesn't have a __call__ method
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assert Script('str()(').find_signatures() == []
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s = dedent("""\
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class X():
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pass
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X()(""")
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assert Script(s).find_signatures() == []
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assert len(Script(s).find_signatures(column=2)) == 1
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assert Script('').find_signatures() == []
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def test_dict_literal_in_incomplete_call(Script):
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source = """\
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import json
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def foo():
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json.loads(
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json.load.return_value = {'foo': [],
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'bar': True}
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c = Foo()
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"""
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script = Script(dedent(source))
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assert script.find_signatures(line=4, column=15)
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def test_completion_interference(Script):
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"""Seems to cause problems, see also #396."""
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cache.parser_cache.pop(None, None)
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assert Script('open(').find_signatures()
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# complete something usual, before doing the same find_signatures again.
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assert Script('from datetime import ').complete()
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assert Script('open(').find_signatures()
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def test_keyword_argument_index(Script, environment):
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def get(source, column=None):
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return Script(source).find_signatures(column=column)[0]
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# The signature of sorted changed from 2 to 3.
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py2_offset = int(environment.version_info.major == 2)
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assert get('sorted([], key=a').index == 1 + py2_offset
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assert get('sorted([], key=').index == 1 + py2_offset
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assert get('sorted([], no_key=a').index is None
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kw_func = 'def foo(a, b): pass\nfoo(b=3, a=4)'
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assert get(kw_func, column=len('foo(b')).index == 0
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assert get(kw_func, column=len('foo(b=')).index == 1
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assert get(kw_func, column=len('foo(b=3, a=')).index == 0
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kw_func_simple = 'def foo(a, b): pass\nfoo(b=4)'
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assert get(kw_func_simple, column=len('foo(b')).index == 0
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assert get(kw_func_simple, column=len('foo(b=')).index == 1
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args_func = 'def foo(*kwargs): pass\n'
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assert get(args_func + 'foo(a').index == 0
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assert get(args_func + 'foo(a, b').index == 0
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kwargs_func = 'def foo(**kwargs): pass\n'
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assert get(kwargs_func + 'foo(a=2').index == 0
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assert get(kwargs_func + 'foo(a=2, b=2').index == 0
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both = 'def foo(*args, **kwargs): pass\n'
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assert get(both + 'foo(a=2').index == 1
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assert get(both + 'foo(a=2, b=2').index == 1
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assert get(both + 'foo(a=2, b=2)', column=len('foo(b=2, a=2')).index == 1
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assert get(both + 'foo(a, b, c').index == 0
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code1 = 'def f(u, /, v=3, *, abc, abd, xyz): pass'
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code2 = 'def g(u, /, v=3, *, abc, abd, xyz, **kwargs): pass'
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code3 = 'def h(u, /, v, *args, x=1, y): pass'
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code4 = 'def i(u, /, v, *args, x=1, y, **kwargs): pass'
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_calls = [
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# No *args, **kwargs
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(code1, 'f(', 0),
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(code1, 'f(a', 0),
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(code1, 'f(a,', 1),
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(code1, 'f(a,b', 1),
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(code1, 'f(a,b,', 2),
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(code1, 'f(a,b,c', None),
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(code1, 'f(a,b,a', 2),
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(code1, 'f(a,b,a=', None),
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(code1, 'f(a,b,abc', 2),
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(code1, 'f(a,b,abc=(', 2),
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(code1, 'f(a,b,abc=(f,1,2,3', 2),
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(code1, 'f(a,b,abd', 3),
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(code1, 'f(a,b,x', 4),
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(code1, 'f(a,b,xy', 4),
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(code1, 'f(a,b,xyz=', 4),
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(code1, 'f(a,b,xy=', None),
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(code1, 'f(u=', (0, None)),
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(code1, 'f(v=', 1),
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# **kwargs
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(code2, 'g(a,b,a', 2),
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(code2, 'g(a,b,abc', 2),
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(code2, 'g(a,b,abd', 3),
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(code2, 'g(a,b,arr', 5),
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(code2, 'g(a,b,xy', 4),
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(code2, 'g(a,b,xyz=', 4),
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(code2, 'g(a,b,xy=', 5),
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(code2, 'g(a,b,abc=1,abd=4,', 4),
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(code2, 'g(a,b,abc=1,xyz=3,abd=4,', 5),
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(code2, 'g(a,b,abc=1,abd=4,lala', 5),
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(code2, 'g(a,b,abc=1,abd=4,lala=', 5),
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(code2, 'g(a,b,abc=1,abd=4,abd=', 5),
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(code2, 'g(a,b,kw', 5),
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(code2, 'g(a,b,kwargs=', 5),
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(code2, 'g(u=', (0, 5)),
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(code2, 'g(v=', 1),
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# *args
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(code3, 'h(a,b,c', 2),
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(code3, 'h(a,b,c,', 2),
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(code3, 'h(a,b,c,d', 2),
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(code3, 'h(a,b,c,d[', 2),
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(code3, 'h(a,b,c,(3,', 2),
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(code3, 'h(a,b,c,(3,)', 2),
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(code3, 'h(a,b,args=', None),
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(code3, 'h(u,v=', 1),
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(code3, 'h(u=', (0, None)),
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(code3, 'h(u,*xxx', 1),
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(code3, 'h(u,*xxx,*yyy', 1),
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(code3, 'h(u,*[]', 1),
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(code3, 'h(u,*', 1),
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(code3, 'h(u,*, *', 1),
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(code3, 'h(u,1,**', 3),
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(code3, 'h(u,**y', 1),
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(code3, 'h(u,x=2,**', 1),
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(code3, 'h(u,x=2,**y', 1),
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(code3, 'h(u,v=2,**y', 3),
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(code3, 'h(u,x=2,**vv', 1),
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# *args, **kwargs
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(code4, 'i(a,b,c,d', 2),
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(code4, 'i(a,b,c,d,e', 2),
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(code4, 'i(a,b,c,d,e=', 5),
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(code4, 'i(a,b,c,d,e=3', 5),
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(code4, 'i(a,b,c,d=,x=', 3),
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(code4, 'i(a,b,c,d=5,x=4', 3),
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(code4, 'i(a,b,c,d=5,x=4,y', 4),
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(code4, 'i(a,b,c,d=5,x=4,y=3,', 5),
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(code4, 'i(a,b,c,d=5,y=4,x=3,', 5),
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(code4, 'i(a,b,c,d=4,', 3),
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(code4, 'i(a,b,c,x=1,d=,', 4),
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# Error nodes
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(code4, 'i(1, [a,b', 1),
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(code4, 'i(1, [a,b=,', 2),
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(code4, 'i(1, [a?b,', 2),
|
|
(code4, 'i(1, [a?b,*', 2),
|
|
(code4, 'i(?b,*r,c', 1),
|
|
(code4, 'i(?*', 0),
|
|
(code4, 'i(?**', (0, 1)),
|
|
|
|
# Random
|
|
(code4, 'i(()', 0),
|
|
(code4, 'i((),', 1),
|
|
(code4, 'i([(),', 0),
|
|
(code4, 'i([(,', 1),
|
|
(code4, 'i(x,()', 1),
|
|
]
|
|
|
|
|
|
@pytest.mark.parametrize('ending', ['', ')'])
|
|
@pytest.mark.parametrize('code, call, expected_index', _calls)
|
|
def test_signature_index(skip_python2, Script, environment, code, call, expected_index, ending):
|
|
if isinstance(expected_index, tuple):
|
|
expected_index = expected_index[environment.version_info > (3, 8)]
|
|
if environment.version_info < (3, 8):
|
|
code = code.replace('/,', '')
|
|
|
|
sig, = Script(code + '\n' + call + ending).find_signatures(column=len(call))
|
|
index = sig.index
|
|
assert expected_index == index
|
|
|
|
|
|
@pytest.mark.skipif(sys.version_info[0] == 2, reason="Python 2 doesn't support __signature__")
|
|
@pytest.mark.parametrize('code', ['foo', 'instance.foo'])
|
|
def test_arg_defaults(Script, environment, code):
|
|
def foo(arg="bla", arg1=1):
|
|
pass
|
|
|
|
class Klass:
|
|
def foo(self, arg="bla", arg1=1):
|
|
pass
|
|
|
|
instance = Klass()
|
|
|
|
src = dedent("""
|
|
def foo2(arg="bla", arg1=1):
|
|
pass
|
|
|
|
class Klass2:
|
|
def foo2(self, arg="bla", arg1=1):
|
|
pass
|
|
|
|
instance = Klass2()
|
|
""")
|
|
|
|
executed_locals = dict()
|
|
exec(src, None, executed_locals)
|
|
locals_ = locals()
|
|
|
|
def iter_scripts():
|
|
yield Interpreter(code + '(', namespaces=[locals_])
|
|
yield Script(src + code + "2(")
|
|
yield Interpreter(code + '2(', namespaces=[executed_locals])
|
|
|
|
for script in iter_scripts():
|
|
signatures = script.find_signatures()
|
|
assert signatures[0].params[0].description in ('param arg="bla"', "param arg='bla'")
|
|
assert signatures[0].params[1].description == 'param arg1=1'
|
|
|
|
|
|
def test_bracket_start(Script):
|
|
def bracket_start(src):
|
|
signatures = Script(src).find_signatures()
|
|
assert len(signatures) == 1
|
|
return signatures[0].bracket_start
|
|
|
|
assert bracket_start('abs(') == (1, 3)
|
|
|
|
|
|
def test_different_caller(Script):
|
|
"""
|
|
It's possible to not use names, but another function result or an array
|
|
index and then get the signature of it.
|
|
"""
|
|
|
|
assert_signature(Script, '[abs][0](', 'abs', 0)
|
|
assert_signature(Script, '[abs][0]()', 'abs', 0, column=len('[abs][0]('))
|
|
|
|
assert_signature(Script, '(abs)(', 'abs', 0)
|
|
assert_signature(Script, '(abs)()', 'abs', 0, column=len('(abs)('))
|
|
|
|
|
|
def test_in_function(Script):
|
|
code = dedent('''\
|
|
class X():
|
|
@property
|
|
def func(''')
|
|
assert not Script(code).find_signatures()
|
|
|
|
|
|
def test_lambda_params(Script):
|
|
code = dedent('''\
|
|
my_lambda = lambda x: x+1
|
|
my_lambda(1)''')
|
|
sig, = Script(code).find_signatures(column=11)
|
|
assert sig.index == 0
|
|
assert sig.name == '<lambda>'
|
|
assert [p.name for p in sig.params] == ['x']
|
|
|
|
|
|
CLASS_CODE = dedent('''\
|
|
class X():
|
|
def __init__(self, foo, bar):
|
|
self.foo = foo
|
|
''')
|
|
|
|
|
|
def test_class_creation(Script):
|
|
|
|
sig, = Script(CLASS_CODE + 'X(').find_signatures()
|
|
assert sig.index == 0
|
|
assert sig.name == 'X'
|
|
assert [p.name for p in sig.params] == ['foo', 'bar']
|
|
|
|
|
|
def test_call_init_on_class(Script):
|
|
sig, = Script(CLASS_CODE + 'X.__init__(').find_signatures()
|
|
assert [p.name for p in sig.params] == ['self', 'foo', 'bar']
|
|
|
|
|
|
def test_call_init_on_instance(Script):
|
|
sig, = Script(CLASS_CODE + 'X().__init__(').find_signatures()
|
|
assert [p.name for p in sig.params] == ['foo', 'bar']
|
|
|
|
|
|
def test_call_magic_method(Script):
|
|
code = dedent('''\
|
|
class X():
|
|
def __call__(self, baz):
|
|
pass
|
|
''')
|
|
sig, = Script(code + 'X()(').find_signatures()
|
|
assert sig.index == 0
|
|
assert sig.name == 'X'
|
|
assert [p.name for p in sig.params] == ['baz']
|
|
|
|
sig, = Script(code + 'X.__call__(').find_signatures()
|
|
assert [p.name for p in sig.params] == ['self', 'baz']
|
|
sig, = Script(code + 'X().__call__(').find_signatures()
|
|
assert [p.name for p in sig.params] == ['baz']
|
|
|
|
|
|
@pytest.mark.parametrize('column', [6, 9])
|
|
def test_cursor_after_signature(Script, column):
|
|
source = dedent("""
|
|
def foo(*args):
|
|
pass
|
|
foo() # _
|
|
""")
|
|
|
|
script = Script(source)
|
|
|
|
assert not script.find_signatures(4, column)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
'code, line, column, name, index', [
|
|
('abs(()\ndef foo(): pass', 1, None, 'abs', 0),
|
|
('abs(chr() \ndef foo(): pass', 1, 10, 'abs', 0),
|
|
('abs(chr()\ndef foo(): pass', 1, None, 'abs', 0),
|
|
('abs(chr()\ndef foo(): pass', 1, 8, 'chr', 0),
|
|
('abs(chr()\ndef foo(): pass', 1, 7, 'abs', 0),
|
|
('abs(chr ( \nclass y: pass', 1, None, 'chr', 0),
|
|
('abs(chr ( \nclass y: pass', 1, 8, 'abs', 0),
|
|
('abs(chr ( \nclass y: pass', 1, 9, 'abs', 0),
|
|
('abs(chr ( \nclass y: pass', 1, 10, 'chr', 0),
|
|
]
|
|
)
|
|
def test_base_signatures(Script, code, line, column, name, index):
|
|
sig, = Script(code).find_signatures(line=line, column=column)
|
|
|
|
assert sig.name == name
|
|
assert sig.index == index
|