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5ca69458d4
This should help catch any errors in our handling of invalid cases. While some of these produce outputs which aren't correct, what we're checking here is that we don't _error_ while producing that output. Also fix a case which this showed up.
375 lines
11 KiB
Python
375 lines
11 KiB
Python
"""
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Test all things related to the ``jedi.api`` module.
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"""
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import os
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import sys
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from textwrap import dedent
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import pytest
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from pytest import raises
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from parso import cache
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from jedi._compatibility import unicode
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from jedi import preload_module
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from jedi.inference.gradual import typeshed
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from test.helpers import test_dir, get_example_dir
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@pytest.mark.skipif(sys.version_info[0] == 2, reason="Ignore Python 2, EoL")
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def test_preload_modules():
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def check_loaded(*modules):
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for grammar_cache in cache.parser_cache.values():
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if None in grammar_cache:
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break
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# Filter the typeshed parser cache.
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typeshed_cache_count = sum(
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1 for path in grammar_cache
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if path is not None and path.startswith(typeshed.TYPESHED_PATH)
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)
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# +1 for None module (currently used)
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assert len(grammar_cache) - typeshed_cache_count == len(modules) + 1
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for i in modules:
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assert [i in k for k in grammar_cache.keys() if k is not None]
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old_cache = cache.parser_cache.copy()
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cache.parser_cache.clear()
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try:
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preload_module('sys')
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check_loaded() # compiled (c_builtin) modules shouldn't be in the cache.
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preload_module('types', 'token')
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check_loaded('types', 'token')
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finally:
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cache.parser_cache.update(old_cache)
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def test_empty_script(Script):
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assert Script('')
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def test_line_number_errors(Script):
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"""
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Script should raise a ValueError if line/column numbers are not in a
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valid range.
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"""
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s = 'hello'
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# lines
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with raises(ValueError):
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Script(s).complete(2, 0)
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with raises(ValueError):
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Script(s).complete(0, 0)
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# columns
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with raises(ValueError):
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Script(s).infer(1, len(s) + 1)
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with raises(ValueError):
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Script(s).goto(1, -1)
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# ok
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Script(s).get_signatures(1, 0)
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Script(s).get_references(1, len(s))
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def _check_number(Script, source, result='float'):
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completions = Script(source).complete()
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assert completions[0].parent().name == result
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def test_completion_on_number_literals(Script):
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# No completions on an int literal (is a float).
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assert [c.name for c in Script('1. ').complete()] \
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== ['and', 'if', 'in', 'is', 'not', 'or']
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# Multiple points after an int literal basically mean that there's a float
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# and a call after that.
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_check_number(Script, '1..')
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_check_number(Script, '1.0.')
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# power notation
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_check_number(Script, '1.e14.')
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_check_number(Script, '1.e-3.')
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_check_number(Script, '9e3.')
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assert Script('1.e3..').complete() == []
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assert Script('1.e-13..').complete() == []
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def test_completion_on_hex_literals(Script):
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assert Script('0x1..').complete() == []
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_check_number(Script, '0x1.', 'int') # hexdecimal
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# Completing binary literals doesn't work if they are not actually binary
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# (invalid statements).
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assert Script('0b2.b').complete() == []
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_check_number(Script, '0b1.', 'int') # binary
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_check_number(Script, '0x2e.', 'int')
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_check_number(Script, '0xE7.', 'int')
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_check_number(Script, '0xEa.', 'int')
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# theoretically, but people can just check for syntax errors:
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assert Script('0x.').complete() == []
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def test_completion_on_complex_literals(Script):
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assert Script('1j..').complete() == []
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_check_number(Script, '1j.', 'complex')
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_check_number(Script, '44.j.', 'complex')
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_check_number(Script, '4.0j.', 'complex')
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# No dot no completion - I thought, but 4j is actually a literal after
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# which a keyword like or is allowed. Good times, haha!
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# However this has been disabled again, because it apparently annoyed
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# users. So no completion after j without a space :)
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assert not Script('4j').complete()
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assert ({c.name for c in Script('4j ').complete()} ==
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{'if', 'and', 'in', 'is', 'not', 'or'})
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def test_goto_non_name(Script, environment):
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assert Script('for').goto() == []
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assert Script('assert').goto() == []
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assert Script('True').goto() == []
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def test_infer_on_non_name(Script):
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assert Script('import x').infer(column=0) == []
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def test_infer_on_generator(Script):
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def_, = Script('def x(): yield 1\ny=x()\ny').infer()
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assert def_.name == 'Generator'
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def test_goto_definition_not_multiple(Script):
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"""
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There should be only one Definition result if it leads back to the same
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origin (e.g. instance method)
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"""
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s = dedent('''\
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import random
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class A():
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def __init__(self, a):
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self.a = 3
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def foo(self):
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pass
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if random.randint(0, 1):
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a = A(2)
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else:
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a = A(1)
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a''')
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assert len(Script(s).infer()) == 1
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def test_reference_description(Script):
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descs = [u.description for u in Script("foo = ''; foo").get_references()]
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assert set(descs) == {"foo = ''", 'foo'}
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def test_get_line_code(Script):
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def get_line_code(source, line=None, **kwargs):
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return Script(source).complete(line=line)[0].get_line_code(**kwargs)
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# On builtin
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assert get_line_code('abs') == 'def abs(__n: SupportsAbs[_T]) -> _T: ...\n'
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# On custom code
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first_line = 'def foo():\n'
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line = ' foo'
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code = first_line + line
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assert get_line_code(code) == first_line
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# With before/after
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code = code + '\nother_line'
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assert get_line_code(code, line=2) == first_line
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assert get_line_code(code, line=2, after=1) == first_line + line + '\n'
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assert get_line_code(code, line=2, after=2, before=1) == code
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# Should just be the whole thing, since there are no more lines on both
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# sides.
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assert get_line_code(code, line=2, after=3, before=3) == code
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def test_get_line_code_on_builtin(Script, disable_typeshed):
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abs_ = Script('abs').complete()[0]
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assert abs_.name == 'abs'
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assert abs_.get_line_code() == ''
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assert abs_.line is None
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def test_goto_follow_imports(Script):
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code = dedent("""
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import inspect
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inspect.isfunction""")
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definition, = Script(code).goto(column=0, follow_imports=True)
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assert 'inspect.py' in definition.module_path
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assert (definition.line, definition.column) == (1, 0)
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definition, = Script(code).goto(follow_imports=True)
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assert 'inspect.py' in definition.module_path
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assert (definition.line, definition.column) > (1, 0)
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code = '''def param(p): pass\nparam(1)'''
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start_pos = 1, len('def param(')
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script = Script(code)
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definition, = script.goto(*start_pos, follow_imports=True)
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assert (definition.line, definition.column) == start_pos
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assert definition.name == 'p'
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result, = definition.goto()
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assert result.name == 'p'
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result, = definition.infer()
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assert result.name == 'int'
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result, = result.infer()
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assert result.name == 'int'
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definition, = script.goto(*start_pos)
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assert (definition.line, definition.column) == start_pos
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d, = Script('a = 1\na').goto(follow_imports=True)
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assert d.name == 'a'
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def test_goto_module(Script):
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def check(line, expected, follow_imports=False):
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script = Script(path=path)
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module, = script.goto(line=line, follow_imports=follow_imports)
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assert module.module_path == expected
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base_path = get_example_dir('simple_import')
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path = os.path.join(base_path, '__init__.py')
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check(1, os.path.join(base_path, 'module.py'))
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check(1, os.path.join(base_path, 'module.py'), follow_imports=True)
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check(5, os.path.join(base_path, 'module2.py'))
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def test_goto_definition_cursor(Script):
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s = ("class A():\n"
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" def _something(self):\n"
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" return\n"
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" def different_line(self,\n"
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" b):\n"
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" return\n"
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"A._something\n"
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"A.different_line"
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)
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in_name = 2, 9
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under_score = 2, 8
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cls = 2, 7
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should1 = 7, 10
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diff_line = 4, 10
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should2 = 8, 10
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def get_def(pos):
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return [d.description for d in Script(s).infer(*pos)]
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in_name = get_def(in_name)
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under_score = get_def(under_score)
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should1 = get_def(should1)
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should2 = get_def(should2)
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diff_line = get_def(diff_line)
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assert should1 == in_name
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assert should1 == under_score
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assert should2 == diff_line
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assert get_def(cls) == []
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def test_no_statement_parent(Script):
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source = dedent("""
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def f():
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pass
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class C:
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pass
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variable = f if random.choice([0, 1]) else C""")
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defs = Script(source).infer(column=3)
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defs = sorted(defs, key=lambda d: d.line)
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assert [d.description for d in defs] == ['def f', 'class C']
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def test_backslash_continuation_and_bracket(Script):
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code = dedent(r"""
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x = 0
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a = \
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[1, 2, 3, (x)]""")
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lines = code.splitlines()
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column = lines[-1].index('(')
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def_, = Script(code).infer(line=len(lines), column=column)
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assert def_.name == 'int'
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def test_goto_follow_builtin_imports(Script):
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s = Script('import sys; sys')
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d, = s.goto(follow_imports=True)
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assert d.in_builtin_module() is True
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d, = s.goto(follow_imports=True, follow_builtin_imports=True)
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assert d.in_builtin_module() is True
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def test_docstrings_for_completions(Script):
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for c in Script('').complete():
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assert isinstance(c.docstring(), (str, unicode))
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def test_fuzzy_completion(Script):
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script = Script('string = "hello"\nstring.upper')
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assert ['isupper',
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'upper'] == [comp.name for comp in script.complete(fuzzy=True)]
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def test_math_fuzzy_completion(Script, environment):
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script = Script('import math\nmath.og')
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expected = ['copysign', 'log', 'log10', 'log1p']
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if environment.version_info.major >= 3:
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expected.append('log2')
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completions = script.complete(fuzzy=True)
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assert expected == [comp.name for comp in completions]
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for c in completions:
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assert c.complete is None
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def test_file_fuzzy_completion(Script):
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path = os.path.join(test_dir, 'completion')
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script = Script('"{}/ep08_i'.format(path))
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expected = [
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'pep0484_basic.py"',
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'pep0484_generic_mismatches.py"',
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'pep0484_generic_parameters.py"',
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'pep0484_generic_passthroughs.py"',
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'pep0484_typing.py"',
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]
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assert expected == [comp.name for comp in script.complete(fuzzy=True)]
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@pytest.mark.parametrize(
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'code, column', [
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('"foo"', 0),
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('"foo"', 3),
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('"foo"', None),
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('"""foo"""', 5),
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('"""foo"""', 1),
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('"""foo"""', 2),
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]
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)
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def test_goto_on_string(Script, code, column):
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script = Script(code)
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assert not script.infer(column=column)
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assert not script.goto(column=column)
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def test_multi_goto(Script):
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script = Script('x = 1\ny = 1.0\nx\ny')
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x, = script.goto(line=3)
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y, = script.goto(line=4)
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assert x.line == 1
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assert y.line == 2
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