test: too few arguments to unpack

tests/run/unpacklistcomp.pyx

@@ -4,18 +4,27 @@ __doc__ = """
     >>> unpack_normal([1,2,3])
     Traceback (most recent call last):
     ValueError: too many values to unpack
+    >>> unpack_normal([1])
+    Traceback (most recent call last):
+    ValueError: need more than 1 values to unpack
 
     >>> unpack_comp([1,2])
     (1, 2)
     >>> unpack_comp([1,2,3])
     Traceback (most recent call last):
     ValueError: too many values to unpack
+    >>> unpack_comp([1])
+    Traceback (most recent call last):
+    ValueError: need more than 1 values to unpack
 
     >>> unpack_expr([1,2])
-    (1, 2)
+    (1, 4)
     >>> unpack_expr([1,2,3])
     Traceback (most recent call last):
     ValueError: too many values to unpack
+    >>> unpack_expr([1])
+    Traceback (most recent call last):
+    ValueError: need more than 1 values to unpack
 """
 
 def unpack_normal(l):