@Nonnull
    public static <T> BatchSource<T> list(@Nonnull String listName) {
        return batchFromProcessor("listSource(" + listName + ')', readListP(listName));
    }
@Test
    public void list_byName() {
        // Given
        List<Integer> input = sequence(itemCount);
        addToSrcList(input);

        // When
        BatchSource<Integer> source = Sources.list(srcName);

        // Then
        p.readFrom(source).writeTo(sink);
        execute();
        assertEquals(input, sinkList);
    }