297 lines
9.6 KiB
Python
297 lines
9.6 KiB
Python
# Test packages (dotted-name import)
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import sys
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import os
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import tempfile
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import textwrap
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import unittest
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# Helpers to create and destroy hierarchies.
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def cleanout(root):
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names = os.listdir(root)
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for name in names:
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fullname = os.path.join(root, name)
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if os.path.isdir(fullname) and not os.path.islink(fullname):
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cleanout(fullname)
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else:
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os.remove(fullname)
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os.rmdir(root)
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def fixdir(lst):
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if "__builtins__" in lst:
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lst.remove("__builtins__")
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if "__initializing__" in lst:
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lst.remove("__initializing__")
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return lst
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# XXX Things to test
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#
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# import package without __init__
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# import package with __init__
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# __init__ importing submodule
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# __init__ importing global module
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# __init__ defining variables
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# submodule importing other submodule
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# submodule importing global module
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# submodule import submodule via global name
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# from package import submodule
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# from package import subpackage
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# from package import variable (defined in __init__)
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# from package import * (defined in __init__)
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class TestPkg(unittest.TestCase):
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def setUp(self):
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self.root = None
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self.pkgname = None
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self.syspath = list(sys.path)
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self.modules_to_cleanup = set() # Populated by mkhier().
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def tearDown(self):
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sys.path[:] = self.syspath
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for modulename in self.modules_to_cleanup:
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if modulename in sys.modules:
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del sys.modules[modulename]
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if self.root: # Only clean if the test was actually run
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cleanout(self.root)
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# delete all modules concerning the tested hierarchy
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if self.pkgname:
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modules = [name for name in sys.modules
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if self.pkgname in name.split('.')]
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for name in modules:
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del sys.modules[name]
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def run_code(self, code):
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exec(textwrap.dedent(code), globals(), {"self": self})
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def mkhier(self, descr):
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root = tempfile.mkdtemp()
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sys.path.insert(0, root)
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if not os.path.isdir(root):
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os.mkdir(root)
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for name, contents in descr:
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comps = name.split()
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self.modules_to_cleanup.add('.'.join(comps))
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fullname = root
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for c in comps:
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fullname = os.path.join(fullname, c)
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if contents is None:
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os.mkdir(fullname)
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else:
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with open(fullname, "w") as f:
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f.write(contents)
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if not contents.endswith('\n'):
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f.write('\n')
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self.root = root
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# package name is the name of the first item
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self.pkgname = descr[0][0]
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def test_1(self):
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hier = [("t1", None), ("t1 __init__.py", "")]
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self.mkhier(hier)
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import t1
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def test_2(self):
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hier = [
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("t2", None),
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("t2 __init__.py", "'doc for t2'"),
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("t2 sub", None),
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("t2 sub __init__.py", ""),
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("t2 sub subsub", None),
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("t2 sub subsub __init__.py", "spam = 1"),
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]
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self.mkhier(hier)
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import t2.sub
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import t2.sub.subsub
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self.assertEqual(t2.__name__, "t2")
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self.assertEqual(t2.sub.__name__, "t2.sub")
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self.assertEqual(t2.sub.subsub.__name__, "t2.sub.subsub")
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# This exec crap is needed because Py3k forbids 'import *' outside
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# of module-scope and __import__() is insufficient for what we need.
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s = """
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import t2
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from t2 import *
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self.assertEqual(dir(), ['self', 'sub', 't2'])
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"""
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self.run_code(s)
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from t2 import sub
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from t2.sub import subsub
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from t2.sub.subsub import spam
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self.assertEqual(sub.__name__, "t2.sub")
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self.assertEqual(subsub.__name__, "t2.sub.subsub")
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self.assertEqual(sub.subsub.__name__, "t2.sub.subsub")
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for name in ['spam', 'sub', 'subsub', 't2']:
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self.assertTrue(locals()["name"], "Failed to import %s" % name)
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import t2.sub
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import t2.sub.subsub
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self.assertEqual(t2.__name__, "t2")
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self.assertEqual(t2.sub.__name__, "t2.sub")
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self.assertEqual(t2.sub.subsub.__name__, "t2.sub.subsub")
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s = """
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from t2 import *
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self.assertEqual(dir(), ['self', 'sub'])
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"""
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self.run_code(s)
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def test_3(self):
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hier = [
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("t3", None),
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("t3 __init__.py", ""),
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("t3 sub", None),
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("t3 sub __init__.py", ""),
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("t3 sub subsub", None),
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("t3 sub subsub __init__.py", "spam = 1"),
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]
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self.mkhier(hier)
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import t3.sub.subsub
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self.assertEqual(t3.__name__, "t3")
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self.assertEqual(t3.sub.__name__, "t3.sub")
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self.assertEqual(t3.sub.subsub.__name__, "t3.sub.subsub")
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def test_4(self):
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hier = [
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("t4.py", "raise RuntimeError('Shouldnt load t4.py')"),
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("t4", None),
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("t4 __init__.py", ""),
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("t4 sub.py", "raise RuntimeError('Shouldnt load sub.py')"),
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("t4 sub", None),
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("t4 sub __init__.py", ""),
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("t4 sub subsub.py",
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"raise RuntimeError('Shouldnt load subsub.py')"),
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("t4 sub subsub", None),
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("t4 sub subsub __init__.py", "spam = 1"),
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]
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self.mkhier(hier)
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s = """
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from t4.sub.subsub import *
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self.assertEqual(spam, 1)
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"""
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self.run_code(s)
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def test_5(self):
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hier = [
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("t5", None),
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("t5 __init__.py", "import t5.foo"),
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("t5 string.py", "spam = 1"),
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("t5 foo.py",
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"from . import string; assert string.spam == 1"),
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]
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self.mkhier(hier)
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import t5
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s = """
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from t5 import *
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self.assertEqual(dir(), ['foo', 'self', 'string', 't5'])
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"""
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self.run_code(s)
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import t5
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self.assertEqual(fixdir(dir(t5)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__path__', '__spec__',
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'foo', 'string', 't5'])
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self.assertEqual(fixdir(dir(t5.foo)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__spec__', 'string'])
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self.assertEqual(fixdir(dir(t5.string)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__spec__', 'spam'])
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def test_6(self):
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hier = [
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("t6", None),
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("t6 __init__.py",
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"__all__ = ['spam', 'ham', 'eggs']"),
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("t6 spam.py", ""),
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("t6 ham.py", ""),
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("t6 eggs.py", ""),
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]
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self.mkhier(hier)
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import t6
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self.assertEqual(fixdir(dir(t6)),
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['__all__', '__cached__', '__doc__', '__file__',
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'__loader__', '__name__', '__package__', '__path__',
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'__spec__'])
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s = """
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import t6
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from t6 import *
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self.assertEqual(fixdir(dir(t6)),
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['__all__', '__cached__', '__doc__', '__file__',
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'__loader__', '__name__', '__package__',
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'__path__', '__spec__', 'eggs', 'ham', 'spam'])
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self.assertEqual(dir(), ['eggs', 'ham', 'self', 'spam', 't6'])
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"""
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self.run_code(s)
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def test_7(self):
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hier = [
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("t7.py", ""),
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("t7", None),
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("t7 __init__.py", ""),
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("t7 sub.py",
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"raise RuntimeError('Shouldnt load sub.py')"),
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("t7 sub", None),
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("t7 sub __init__.py", ""),
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("t7 sub .py",
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"raise RuntimeError('Shouldnt load subsub.py')"),
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("t7 sub subsub", None),
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("t7 sub subsub __init__.py",
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"spam = 1"),
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]
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self.mkhier(hier)
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t7, sub, subsub = None, None, None
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import t7 as tas
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self.assertEqual(fixdir(dir(tas)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__path__', '__spec__'])
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self.assertFalse(t7)
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from t7 import sub as subpar
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self.assertEqual(fixdir(dir(subpar)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__path__', '__spec__'])
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self.assertFalse(t7)
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self.assertFalse(sub)
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from t7.sub import subsub as subsubsub
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self.assertEqual(fixdir(dir(subsubsub)),
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['__cached__', '__doc__', '__file__', '__loader__',
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'__name__', '__package__', '__path__', '__spec__',
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'spam'])
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self.assertFalse(t7)
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self.assertFalse(sub)
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self.assertFalse(subsub)
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from t7.sub.subsub import spam as ham
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self.assertEqual(ham, 1)
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self.assertFalse(t7)
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self.assertFalse(sub)
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self.assertFalse(subsub)
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def test_8(self):
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hier = [
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("t8", None),
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("t8 __init__"+os.extsep+"py", "'doc for t8'"),
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]
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self.mkhier(hier)
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import t8
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self.assertEqual(t8.__doc__, "doc for t8")
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if __name__ == "__main__":
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unittest.main()
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