tests for class scope behaviour

tests/bugs.txt

@@ -18,6 +18,8 @@ genexpr_iterable_lookup_T600
 for_from_pyvar_loop_T601
 decorators_T593
 temp_sideeffects_T654
+class_scope_T671
+class_scope_del_T684
 
 # CPython regression tests that don't current work:
 pyregr.test_threadsignals

tests/run/class_scope.py

+# mode:run
+# tag: class, scope
+
+class MethodRedef(object):
+    """
+    >>> MethodRedef().a(5)
+    7
+    """
+
+    def a(self, i):
+        return i+1
+
+    def a(self, i):
+        return i+2

tests/run/class_scope_T671.py

+# mode:run
+# tag: class, scope
+# ticket: 671
+
+MAIN = True
+
+class OuterScopeLookup(object):
+    """
+    >>> OuterScopeLookup.MAIN
+    True
+    """
+    MAIN = MAIN  # looked up in parent scope, assigned to class scope

tests/run/class_scope_del_T684.py

+# mode:run
+# tag: class, scope, del
+# ticket: 684
+
+class DelInClass(object):
+    """
+    >>> DelInClass.y
+    5
+    >>> DelInClass.x
+    Traceback (most recent call last):
+    AttributeError: type object 'DelInClass' has no attribute 'x'
+    """
+    x = 5
+    y = x
+    del x