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Expand tests and fix bugs in packaging.util.resolve_name.

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The code is still ugly, but at least it works better now.  Patches to
make it easier to read are welcome, as well as support in #12915.
This commit is contained in:
Éric Araujo 2011-10-19 06:46:13 +02:00
parent 4f996449bf
commit 8ccd18fff3
2 changed files with 57 additions and 30 deletions
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66
Lib/packaging/tests/test_util.py
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@ -4,6 +4,7 @@ import sys
import time
import logging
import tempfile
import textwrap
import subprocess
from io import StringIO
@ -375,35 +376,48 @@ class UtilTestCase(support.EnvironRestorer,
'pkg1.pkg3.pkg6']))
def test_resolve_name(self):
self.assertIs(str, resolve_name('builtins.str'))
self.assertEqual(
UtilTestCase.__name__,
resolve_name("packaging.tests.test_util.UtilTestCase").__name__)
self.assertEqual(
UtilTestCase.test_resolve_name.__name__,
resolve_name("packaging.tests.test_util.UtilTestCase."
"test_resolve_name").__name__)
# test raw module name
tmpdir = self.mkdtemp()
sys.path.append(tmpdir)
self.addCleanup(sys.path.remove, tmpdir)
self.write_file((tmpdir, 'hello.py'), '')
self.assertRaises(ImportError, resolve_name,
"packaging.tests.test_util.UtilTestCaseNot")
self.assertRaises(ImportError, resolve_name,
"packaging.tests.test_util.UtilTestCase."
"nonexistent_attribute")
os.makedirs(os.path.join(tmpdir, 'a', 'b'))
self.write_file((tmpdir, 'a', '__init__.py'), '')
self.write_file((tmpdir, 'a', 'b', '__init__.py'), '')
self.write_file((tmpdir, 'a', 'b', 'c.py'), 'class Foo: pass')
self.write_file((tmpdir, 'a', 'b', 'd.py'), textwrap.dedent("""\
class FooBar:
class Bar:
def baz(self):
pass
"""))
def test_import_nested_first_time(self):
tmp_dir = self.mkdtemp()
os.makedirs(os.path.join(tmp_dir, 'a', 'b'))
self.write_file(os.path.join(tmp_dir, 'a', '__init__.py'), '')
self.write_file(os.path.join(tmp_dir, 'a', 'b', '__init__.py'), '')
self.write_file(os.path.join(tmp_dir, 'a', 'b', 'c.py'),
'class Foo: pass')
# check Python, C and built-in module
self.assertEqual(resolve_name('hello').__name__, 'hello')
self.assertEqual(resolve_name('_csv').__name__, '_csv')
self.assertEqual(resolve_name('sys').__name__, 'sys')
try:
sys.path.append(tmp_dir)
resolve_name("a.b.c.Foo")
# assert nothing raised
finally:
sys.path.remove(tmp_dir)
# test module.attr
self.assertIs(resolve_name('builtins.str'), str)
self.assertIsNone(resolve_name('hello.__doc__'))
self.assertEqual(resolve_name('a.b.c.Foo').__name__, 'Foo')
self.assertEqual(resolve_name('a.b.d.FooBar.Bar.baz').__name__, 'baz')
# error if module not found
self.assertRaises(ImportError, resolve_name, 'nonexistent')
self.assertRaises(ImportError, resolve_name, 'non.existent')
self.assertRaises(ImportError, resolve_name, 'a.no')
self.assertRaises(ImportError, resolve_name, 'a.b.no')
self.assertRaises(ImportError, resolve_name, 'a.b.no.no')
self.assertRaises(ImportError, resolve_name, 'inva-lid')
# looking up built-in names is not supported
self.assertRaises(ImportError, resolve_name, 'str')
# error if module found but not attr
self.assertRaises(ImportError, resolve_name, 'a.b.Spam')
self.assertRaises(ImportError, resolve_name, 'a.b.c.Spam')
def test_run_2to3_on_code(self):
content = "print 'test'"