mirror of
https://github.com/davidhalter/jedi.git
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225 lines
6.7 KiB
Python
225 lines
6.7 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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from textwrap import dedent
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from jedi import api
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from jedi._compatibility import is_py3
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from pytest import raises
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from parso import cache
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def test_preload_modules():
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def check_loaded(*modules):
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# +1 for None module (currently used)
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grammar_cache = next(iter(cache.parser_cache.values()))
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assert len(grammar_cache) == 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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api.preload_module('sys')
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check_loaded() # compiled (c_builtin) modules shouldn't be in the cache.
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api.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():
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assert api.Script('')
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def test_line_number_errors():
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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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api.Script(s, 2, 0)
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with raises(ValueError):
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api.Script(s, 0, 0)
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# columns
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with raises(ValueError):
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api.Script(s, 1, len(s) + 1)
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with raises(ValueError):
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api.Script(s, 1, -1)
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# ok
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api.Script(s, 1, 0)
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api.Script(s, 1, len(s))
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def _check_number(source, result='float'):
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completions = api.Script(source).completions()
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assert completions[0].parent().name == result
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def test_completion_on_number_literals():
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# No completions on an int literal (is a float).
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assert [c.name for c in api.Script('1.').completions()] \
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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('1..')
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_check_number('1.0.')
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# power notation
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_check_number('1.e14.')
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_check_number('1.e-3.')
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_check_number('9e3.')
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assert api.Script('1.e3..').completions() == []
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assert api.Script('1.e-13..').completions() == []
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def test_completion_on_hex_literals():
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assert api.Script('0x1..').completions() == []
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_check_number('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 api.Script('0b2.b').completions() == []
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_check_number('0b1.', 'int') # binary
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_check_number('0x2e.', 'int')
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_check_number('0xE7.', 'int')
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_check_number('0xEa.', 'int')
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# theoretically, but people can just check for syntax errors:
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#assert api.Script('0x.').completions() == []
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def test_completion_on_complex_literals():
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assert api.Script('1j..').completions() == []
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_check_number('1j.', 'complex')
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_check_number('44.j.', 'complex')
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_check_number('4.0j.', 'complex')
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# No dot no completion - I thought, but 4j is actually a literall after
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# which a keyword like or is allowed. Good times, haha!
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assert (set([c.name for c in api.Script('4j').completions()]) ==
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set(['if', 'and', 'in', 'is', 'not', 'or']))
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def test_goto_assignments_on_non_name():
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assert api.Script('for').goto_assignments() == []
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assert api.Script('assert').goto_assignments() == []
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if is_py3:
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assert api.Script('True').goto_assignments() == []
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else:
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# In Python 2.7 True is still a name.
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assert api.Script('True').goto_assignments()[0].description == 'instance True'
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def test_goto_definitions_on_non_name():
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assert api.Script('import x', column=0).goto_definitions() == []
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def test_goto_definitions_on_generator():
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def_, = api.Script('def x(): yield 1\ny=x()\ny').goto_definitions()
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assert def_.name == 'generator'
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def test_goto_definition_not_multiple():
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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(api.Script(s).goto_definitions()) == 1
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def test_usage_description():
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descs = [u.description for u in api.Script("foo = ''; foo").usages()]
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assert set(descs) == set(["foo = ''", 'foo'])
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def test_get_line_code():
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def get_line_code(source, line=None, **kwargs):
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return api.Script(source, line=line).completions()[0].get_line_code(**kwargs)
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# On builtin
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assert get_line_code('') == ''
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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 = '%s%s' % (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_goto_assignments_follow_imports():
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code = dedent("""
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import inspect
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inspect.isfunction""")
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definition, = api.Script(code, column=0).goto_assignments(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, = api.Script(code).goto_assignments(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 = api.Script(code, *start_pos)
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definition, = script.goto_assignments(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_assignments()
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assert result.name == 'p'
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result, = definition._goto_definitions()
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assert result.name == 'int'
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result, = result._goto_definitions()
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assert result.name == 'int'
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definition, = script.goto_assignments()
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assert (definition.line, definition.column) == start_pos
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d, = api.Script('a = 1\na').goto_assignments(follow_imports=True)
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assert d.name == 'a'
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def test_goto_module():
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def check(line, expected):
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script = api.Script(path=path, line=line)
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module, = script.goto_assignments()
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assert module.module_path == expected
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base_path = os.path.join(os.path.dirname(__file__), '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(5, os.path.join(base_path, 'module2.py'))
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