94 lines
3.3 KiB
Python
94 lines
3.3 KiB
Python
# Copyright (c) 2014 Google, Inc.
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# Copyright (c) 2014-2016 Claudiu Popa <pcmanticore@gmail.com>
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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
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import inspect
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import os
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import unittest
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from six.moves import builtins
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from astroid.builder import AstroidBuilder, extract_node
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from astroid.raw_building import (
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attach_dummy_node, build_module,
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build_class, build_function, build_from_import
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)
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from astroid import test_utils
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from astroid import nodes
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from astroid.bases import BUILTINS
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class RawBuildingTC(unittest.TestCase):
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def test_attach_dummy_node(self):
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node = build_module('MyModule')
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attach_dummy_node(node, 'DummyNode')
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self.assertEqual(1, len(list(node.get_children())))
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def test_build_module(self):
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node = build_module('MyModule')
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self.assertEqual(node.name, 'MyModule')
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self.assertEqual(node.pure_python, False)
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self.assertEqual(node.package, False)
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self.assertEqual(node.parent, None)
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def test_build_class(self):
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node = build_class('MyClass')
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self.assertEqual(node.name, 'MyClass')
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self.assertEqual(node.doc, None)
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def test_build_function(self):
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node = build_function('MyFunction')
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self.assertEqual(node.name, 'MyFunction')
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self.assertEqual(node.doc, None)
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def test_build_function_args(self):
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args = ['myArgs1', 'myArgs2']
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# pylint: disable=no-member; not aware of postinit
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node = build_function('MyFunction', args)
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self.assertEqual('myArgs1', node.args.args[0].name)
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self.assertEqual('myArgs2', node.args.args[1].name)
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self.assertEqual(2, len(node.args.args))
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def test_build_function_defaults(self):
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# pylint: disable=no-member; not aware of postinit
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defaults = ['defaults1', 'defaults2']
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node = build_function('MyFunction', None, defaults)
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self.assertEqual(2, len(node.args.defaults))
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def test_build_from_import(self):
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names = ['exceptions, inference, inspector']
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node = build_from_import('astroid', names)
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self.assertEqual(len(names), len(node.names))
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@test_utils.require_version(minver='3.0')
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def test_io_is__io(self):
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# _io module calls itself io. This leads
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# to cyclic dependencies when astroid tries to resolve
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# what io.BufferedReader is. The code that handles this
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# is in astroid.raw_building.imported_member, which verifies
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# the true name of the module.
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import _io
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builder = AstroidBuilder()
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module = builder.inspect_build(_io)
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buffered_reader = module.getattr('BufferedReader')[0]
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self.assertEqual(buffered_reader.root().name, 'io')
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@unittest.skipUnless(os.name == 'java', 'Requires Jython')
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def test_open_is_inferred_correctly(self):
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# Lot of Jython builtins don't have a __module__ attribute.
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for name, _ in inspect.getmembers(builtins, predicate=inspect.isbuiltin):
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if name == 'print':
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continue
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node = extract_node('{0} #@'.format(name))
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inferred = next(node.infer())
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self.assertIsInstance(inferred, nodes.FunctionDef, name)
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self.assertEqual(inferred.root().name, BUILTINS, name)
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if __name__ == '__main__':
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unittest.main()
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