death to "misc" directories. moved most files out of py/misc, either to a

private attic or to other places in the lib.

--HG--
branch : trunk

py/_testing/test_error.py

@@ -0,0 +1,26 @@
+
+import py
+
+import errno
+
+def test_error_classes():
+    for name in errno.errorcode.values():
+        x = getattr(py.error, name)
+        assert issubclass(x, py.error.Error)
+        assert issubclass(x, EnvironmentError)
+
+def test_unknown_error(): 
+    num = 3999
+    cls = py.error._geterrnoclass(num)
+    assert cls.__name__ == 'UnknownErrno%d' % (num,) 
+    assert issubclass(cls, py.error.Error)
+    assert issubclass(cls, EnvironmentError)
+    cls2 = py.error._geterrnoclass(num)
+    assert cls is cls2
+
+def test_error_conversion_ENOTDIR(testdir):
+    p = testdir.makepyfile("")
+    excinfo = py.test.raises(py.error.Error, py.error.checked_call, p.listdir)
+    assert isinstance(excinfo.value, EnvironmentError)
+    assert isinstance(excinfo.value, py.error.Error)
+    assert "ENOTDIR" in repr(excinfo.value)