1 files changed, 85 insertions, 0 deletions
diff --git a/tests/run/function_self.py b/tests/run/function_self.py
new file mode 100644
index 000000000..945da404f
--- /dev/null
+++ b/tests/run/function_self.py
@@ -0,0 +1,85 @@
+# mode: run
+# tag: pure2.7
+
+# cython: binding=True
+
+import cython
+import sys
+
+def regular(x):
+    """
+    >>> hasattr(regular, "__self__")
+    False
+    >>> nested = regular(10)
+    >>> hasattr(nested, "__self__")
+    False
+    """
+    def nested(y):
+        return x+y
+    return nested
+
+@cython.locals(x=cython.floating)
+def fused(x):
+    """
+    >>> nested = fused(10.)
+    >>> hasattr(nested, "__self__")
+    False
+
+    >>> hasattr(fused, "__self__")
+    False
+    """
+    def nested_in_fused(y):
+        return x+y
+    return nested_in_fused
+
+# FIXME - doesn't currently work at all
+#def get_nested_fused(x):
+#    @cython.locals(x=cython.floating)
+#    def nested_fused(y):
+#        return x+y
+#    return nested_fused
+
+class C:
+    """
+    >>> c = C()
+    >>> c.regular.__self__ is c
+    True
+    >>> c.fused.__self__ is c
+    True
+    """
+    def regular(self):
+        pass
+
+    @cython.locals(x=cython.floating)
+    def fused(self, x):
+        return x
+
+__doc__ = ""
+if sys.version_info[0] > 2 or cython.compiled:
+    __doc__ += """
+    >>> hasattr(C.regular, "__self__")  # __self__==None on pure-python 2
+    False
+
+    # returns None on pure-python 2
+    >>> C.fused.__self__  #doctest: +ELLIPSIS
+    Traceback (most recent call last):
+        ...
+    AttributeError: 'function' object has no attribute '__self__'...
+    """
+
+if cython.compiled:
+    __doc__ = """
+    >>> hasattr(fused['double'], '__self__')
+    False
+
+    >>> hasattr(C.fused['double'], '__self__')
+    False
+
+    >>> c = C()
+    >>> c.fused['double'].__self__ is c   #doctest: +ELLIPSIS
+    True
+
+    # The PR that changed __self__ also changed how __doc__ is set up slightly
+    >>> fused['double'].__doc__ == fused.__doc__ and isinstance(fused.__doc__, str)
+    True
+    """