Author: Vasily Kuznetsov <kvas...@gmail.com>
Branch: py3.3
Changeset: r72678:0bfa6c3b47d3
Date: 2014-07-30 11:14 +0200
http://bitbucket.org/pypy/pypy/changeset/0bfa6c3b47d3/
Log: Add more tests for dir(...) and .__dir__().
diff --git a/pypy/module/__builtin__/test/test_dir.py
b/pypy/module/__builtin__/test/test_dir.py
--- a/pypy/module/__builtin__/test/test_dir.py
+++ b/pypy/module/__builtin__/test/test_dir.py
@@ -24,3 +24,84 @@
def __dir__(self):
return 42
raises(TypeError, dir, Foo())
+
+ def test_dir_traceback(self):
+ """Test dir() of traceback."""
+ import sys
+
+ try:
+ raise IndexError
+ except:
+ assert len(dir(sys.exc_info()[2])) == 4
+
+ def test_dir_object_inheritance(self):
+ """Dir should behave the same regardless of inheriting from object."""
+ class A:
+ pass
+
+ class B(object):
+ pass
+ assert dir(A) == dir(B)
+
+ def test_dir_sanity(self):
+ """Test that dir returns reasonable items."""
+ class A(object):
+ a = 1
+
+ class B(A):
+ y = 2
+
+ b = B()
+ b.z = 1
+
+ names = dir(b)
+ for name in 'ayz':
+ assert name in names
+
+ assert '__doc__' in names
+ assert '__module__' in names
+ assert '__dict__' in names
+ assert '__dir__' in names
+ assert '__weakref__' in names
+ assert '__class__' in names
+ assert '__format__' in names
+ # Not an exhaustive list, but will be enough if dir is very broken.
+
+ def test_dir_module(self):
+ import sys
+ assert dir(sys) == list(sorted(sys.__dict__))
+
+ def test_dir_list(self):
+ """Check that dir([]) has methods from list and from object."""
+ names = dir([])
+
+ dct = {}
+ dct.update(list.__dict__)
+ dct.update(object.__dict__)
+
+ assert names == sorted(dct)
+
+ def test_dir_builtins(self):
+ """Test that builtin objects have sane __dir__()."""
+ import sys
+
+ def check_dir(obj):
+ print(dir(obj))
+ assert sorted(obj.__dir__()) == dir(obj)
+
+ for builtin in [sys, object(), [], {}, {1}, "", 1, (), sys,
+ map(ord, "abc"), filter(None, "abc"), zip([1, 2], [3, 4]),
+ compile('1', '', 'exec')]:
+ check_dir(builtin)
+
+ def test_dir_type(self):
+ """Test .__dir__() and dir(...) behavior on types.
+
+ * t.__dir__() throws a TypeError,
+ * dir(t) == sorted(t().__dir__())
+
+ This is the behavior that I observe with cpython3.3.2.
+ """
+ for t in [int, list, tuple, set, str]:
+ raises(TypeError, t.__dir__)
+ assert dir(t) == sorted(t().__dir__())
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