new test case

tests/run/builtin_len.pyx

+# -*- coding: utf-8 -*-
+
+cimport cython
+
+unicode_str = u'ab jd  üöä ôñ ÄÖ'
+bytes_str   = b'ab jd  sdflk as sa  sadas asdas fsdf '
+
+_frozenset = frozenset
+_set = set
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_unicode(unicode s):
+    """
+    >>> len(unicode_str)
+    16
+    >>> len_unicode(unicode_str)
+    16
+    >>> len_unicode(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_bytes(bytes s):
+    """
+    >>> len(bytes_str)
+    37
+    >>> len_bytes(bytes_str)
+    37
+    >>> len_bytes(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_str(str s):
+    """
+    >>> len('abcdefg')
+    7
+    >>> len_str('abcdefg')
+    7
+    >>> len_unicode(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_list(list s):
+    """
+    >>> l = [1,2,3,4]
+    >>> len(l)
+    4
+    >>> len_list(l)
+    4
+    >>> len_list(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_tuple(tuple s):
+    """
+    >>> t = (1,2,3,4)
+    >>> len(t)
+    4
+    >>> len_tuple(t)
+    4
+    >>> len_tuple(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_dict(dict s):
+    """
+    >>> d = dict(a=1, b=2, c=3, d=4)
+    >>> len(d)
+    4
+    >>> len_dict(d)
+    4
+    >>> len_dict(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_set(set s):
+    """
+    >>> s = _set((1,2,3,4))
+    >>> len(s)
+    4
+    >>> len_set(s)
+    4
+    >>> len_set(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)
+
+@cython.test_assert_path_exists(
+    "//CoerceToPyTypeNode",
+    "//PythonCapiCallNode")
+def len_frozenset(frozenset s):
+    """
+    >>> s = _frozenset((1,2,3,4))
+    >>> len(s)
+    4
+    >>> len_frozenset(s)
+    4
+    >>> len_set(None)
+    Traceback (most recent call last):
+    TypeError: object of type 'NoneType' has no len()
+    """
+    return len(s)